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add to favorites Hardware, Software And Management Improve Business Strength Pc  
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1, about the hardware. Why do you mention the hardware first? Because this is the foundation, all the value is ultimately reflected in the output of the device, and all other work is attached to the device. Therefore, the equipment should not be too backward, at least to ensure that the production equipment can produce standard cut off wheel for metal products that meet the technical requirements. In terms of hardware, in addition to production equipment, there are data information collection and processing equipment, which are used after docking with IoT technology. These devices, including sensors, data analyzers, etc., are extremely important and determine whether you are eligible to enter the market on future commercial battlefields.

2, about the software, because the use is not good, many companies do not value, or that did not attract enough attention. In general, many companies don't understand how software can play a huge role, just know that there are benefits, in the context of software promotion, follow the trend. Can you have a role to put aside, anyway, I have it, and there is no obstacle to communicating with customers. Two points have been neglected here. First, the power of software to work is greatly underestimated, especially in the collection and processing of data and information. Second, many companies are only equipped with software, but do not know, software Is a system engineering, how much software can play, depending on the person who uses it, whether the person using it has professional knowledge, systematic training without software, and other aspects of the software in which it is connected Supporting situation, whether the connection with the software is smooth.

3. Regarding management, in some small and medium-sized enterprises, due to the large number of things and relatively few people, the autonomy of each employee is relatively large. Under normal circumstances, the task can be completed according to their own ideas. However, once the company develops to a certain scale, the company begins to improve the system and enter the standardization stage. The company regards the regulatory process as a standard, often resulting in no matter how innovative the employee's ideas are, how efficient it is to solve the problem, but the employees have no right to speak, and the employees are more It is like a tool for performing tasks. Although it does not deny the necessity of regulations and processes, in the process of learning the regulatory process from large enterprises, don't just focus on the form or the essence. The regulatory process ensures that many things are not problematic, but they also rigidify the organization, limiting efficiency and inhibiting the use of employees' intellectual resources. Large companies have the comparative advantage of human resources and market size, so solving the problems he faces, regulations and processes are more important, and his scale advantage can offset some of the inefficient processes. However, the problems faced by SMEs are definitely different from those of large enterprises, and there is no advantage of large enterprises. Under such conditions, it is hard to learn, and the name is advanced, which is obviously tied to his own hands and feet. SMEs have their own advantages, which is more flexible and faster.

add to favorites China cut off disc Economic development of abrasives Pc  
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In the past ten years, the development of the Internet economy has been rising, and the abrasives market has benefited from the industry changes brought by the network channels.cut off disc for stainless steelThe quality and price of more abrasive abrasives are on the same competition line. With the equal competition brought by the platform, the companies in the industry have to think more about how to improve the differentiated marketing of their products and gain more market share. After all, everyone knows that "the market is not a single market, and the quality of products and quality services determine the market." The services here arecut off disc for stainless steel actually interoperable, such as abrasives manufacturers or merchants, customers are in arrears, they will provide customers with guidance on template issues, during which time customers need to pay to fulfill their commitments. Conversely, non-interoperable services will gradually undermine the business chain between vendors and customers. More and more, there will be more and more abrasives manufacturers are reluctant to do business in arrears. In recent years, with the rising cost of various materials, warehouse storage, transportation, etc., the abrasives industry has gradually entered the era of low profit, and manufacturers and merchants in the industry are also more cautious about dealing with under-the-counter trading orders. The goods have become the new normal of the abrasives market every day. Since ancient times, although the abrasives market is in arrears with the payment of goods, it is easier to reach orders, and each order is not small, but despite the large amount, there is actually no high profit, meager profit plus the amount (even the last paragraph). The arrears will greatly affect the flow of information of the merchants, which brings great pressure to the merchants! Another important reason is that payments that are often in arrears often become unsuccessful over time or from various external factors. Once a merchant encounters such a transaction, it is a loss-making transaction in a minute. Often, there are people who have lost their money, and finally the capital turnover is weak. One stack is one, the more they are dragged, the more they are overwhelmed until they close their doors. Therefore, with the birth of a new business model, the re-delivery of goods will gradually become a new form of trading in the abrasives market, and the new year will also catalyze the new normality of this pay-as-you-go abrasives market!
add to favorites China Abrasives System Optimization Pc  
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1.1 Ventilation and dust removal system
One of the main processes of corundum production is to mix the raw and auxiliary materials into a certain proportion and then send them into an electric arc furnace to produce a block-shaped abrasive. During the smelting process, a large amount of soot is generated. In order to facilitate the feeding and dip, most enterprises use semi-closed covers.China cut off disc The problem caused by the semi-closed cover is that the amount of smoke is large, and the second is that the furnace cooling water generates a large amount of steam into the hood. These two problems have brought great difficulties to the purification of flue gas. Many manufacturers have not adopted purification measures, and the pollution is very serious.
1.2 Silicon Carbide Smelting Furnace
The silicon carbide smelting furnace is generally a fixed resistance furnace. During the whole process of smelting, a large amount of dusty flue gas escapes, especially the unloading material is the most serious. Due to the high temperature of the flue gas, the large amount of flue gas, China cut off discthe wide surface of the flue gas, and the high dust resistivity, the purification cost is extremely high, and many manufacturers are discouraged.
1.3 The form of the vacuum hood and the appropriate air intake
Due to the rapid changes in the process equipment of the abrasives industry in recent years, how to design the form of the vacuum hood and select the appropriate suction volume has become a new problem. The dust hood is an important part of the ventilation dust removal system. Its effectiveness greatly affects the technical and economic performance indicators of the whole system, and should be given enough attention.
1.4 Dust removal equipment
The dust removal equipment used in the abrasives industry is mainly bag filter. Due to the misunderstanding of the dust properties or insufficient investment, most of the dust removal equipments are overloaded, with high energy consumption and operating costs.
1.5 Dust removal system wear and tear
The hardness of the abrasive is very high, and the Mohs hardness is above 9.0, which causes the metal components in the cyclone, the air duct, the fan and the bag filter to be seriously worn. 1.6 Investment issues
The ventilation and dust removal project has a high initial investment and high operating costs, and is a high-input and low-output project. Therefore, some manufacturers pay insufficient attention to the work of ventilation and dust removal, and even daunting.
add to favorites Precautions For The Long Life Grinding Wheel Pc  
1. The resin long life grinding wheel must be inspected visually before use. If skin damage is not allowed. 2. The grinder used must have intact guards. The main shaft of the grinder should meet the technical requirements. 3. When the resin long life grinding wheel is installed on the grinder, it is forbidden to beat the grinding wheel. The tightening of the grinding wheel requires moderate tightness. Too loose, too tight or the uneven contact surface between the grinding wheel and the flange is an important factor that causes the grinding wheel to be damaged. 4. Each grinding wheel is marked with a large working speed. It is required that the speed of the resin long life grinding wheel should not exceed the specified safe use speed. 5. Protective equipment (protective glasses, dust masks, safety helmets, protective gloves, etc.) must be worn before using the grinding wheel to ensure safe use. 6. After the long life grinding wheel is installed, it should be idle for 1 minute. Observe the abnormality before using it. 7. When using the resin grinding wheel, it is necessary to slowly enter the knife and operate it evenly. Do not stack the workpieces to prevent the grinding wheel from loosening and falling off, resulting in serious accidents. 8. When grinding and grinding the long life grinding wheel, it should be inclined at an angle of 45 degrees with the object being ground.
add to favorites Hand cone method to test the hardness of the grinding wheel Pc  

The hand cone method was first applied to the hardness test of the grinding wheel in 1926. This method is relatively simple. The inspector uses a steel cone to manually insert the surface of the cut off disc for stainless steel and rotate it. The hardness and hardness of the grinding wheel are judged according to the feeling and the depth of the insertion. This method is completely based on the experience and feeling of the inspector. There is no quantitative data and the precision is low. It is difficult to quantify the graded hardness.

  Similar to this method, there is Japan's Daeue test method, which is applied in Japan, Canada, and Taiwan. The Da Yue test method belongs to the mechanical cone measurement method and is developed on the basis of the hand cone method. This method can also be applied to rough China cut off disc that cannot be measured by sand blasting.

Due to the mechanical structure, the force, the rotation angle and the like are basically stabilized, the measurement reliability is improved, and the measurement result can be quantified, which is a reasonable measurement method. Similar to the hand cone method, there is also a scratch measurement method: this aspect is similar to the definition method of Mohs hardness. In practice, a grinding wheel of known hardness is used to draw another grinding wheel of unknown hardness, according to how much the abrasive falls off. To judge the hard and soft. Japan developed it into a mechanical scratch test method, which can achieve quantitative measurement of the fixed force. The former Soviet abrasive abrasives standard stipulates that the hardness of rubber abrasives is determined by the pressure cone method. In these methods of measuring hardness, the measurement force depends on both the strength of the bonding agent and the toughness of the abrasive, so the measured hardness does not reflect the inherent hardness characteristics of the grinding wheel.

add to favorites Electric spark dressing wheel Pc  
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The principle of electric spark grinding wheel dressing is in the process of electric spark shaping, standard cut off wheel for metalbecause the second wheel does not touch the tool electrode, the grinding wheel does not It is protected by the repairing force, thus avoiding the occurrence of vibration phenomenon during the shaping of the contact dressing method, so that a higher degree of plasticity can be achieved. And the integrity of the electric grinder sandboxing method is used to make use of the principle of electric machining. The surface appearance of the demon after the grinding wheel is also used. The shape of the wheel surface obtained by his orthopedic method is different. In the electric spark finishing process, the iron-based binder second wheel and the tool electrode valve are generated The spark discharge pulse forms a discharge pit on the surface of the grinding wheel. During the repeated discharge process, the discharge pits overlap each other, and the grinding wheel is gradually repaired. When the single spark discharge energy is appropriate, the higher the frequency of discharge, standard cut off wheel for metalthe better the grinding amount of the grinding wheel. EDM grinding wheel trimming has the following characteristics: 1. It can be in place, online trimming, and ensure grinding precision, easy to operate. 2. Suitable It is used for any grinding wheel with conductive material as the combination of Hu. It is suitable for the dressing of small diameter and very thin grinding wheel. 3. It is convenient and practical. Now it is fast and high-precision trimming of the forming grinding wheel. In addition, compared with other grinding wheel dressing methods, EDM trimming has low cost and is easy to implement. Less process parameters, easy adjustment, etc.
add to favorites Use of chipboard in cut off disc for stainless steel Pc  
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In the processing of grinding machines, cutting machine tools or portable power tools, the wheel guards are one of the important means to protect the personal safety of the operators. Moreover, the wheel guards not only protect the personal safety of the operators, but also improve them through improvement. An important entry point for processing efficiency.
Protection problem The protective cover is the most important protection device of the grinder. Its function is: When the grinding wheel is damaged due to work, it can effectively cover the grinding wheel fragments and ensure the safety of personnel.
The shape of the wheel guard is round and square, and the maximum opening angle is not allowed to exceed 90°; the material of the shield is steel with a tensile strength of not less than 415 N/mm2. When replacing a new grinding wheel, the protective cover should be installed firmly and reliably, and the protective cover should not be dismantled or discarded.
The existing protective cover is usually composed of a simple cover, and an opening for the cut off disc for stainless steel machine is opened on the upper side, and the debris is prevented from flying out from the periphery during the processing. However, since the residue remains in the protective cover after being blocked by the protective cover, it takes a long time, and a lot of residue and dust are accumulated in the protective cover. In order not to hinder the cutting work, the construction personnel also need to regularly clean the residue. Cutting operations cause a lot of inconvenience and affect work efficiency. In addition, too much residue in the shield can easily spill to the outside, affecting the surrounding environment, and too much residue can easily cause secondary splashes during the cutting process and damage the construction personnel.cut off disc for stainless steel
The chipboard should have sufficient strength and be adjustable;
The chipboard should be firmly mounted on the protective cover, and the adjusting bolts are complete and fastened;
v The chipboard should have a certain strength, which can effectively block the wheel fragments and splashing Mars;
The width of the chipboard should be greater than the width of the outer circumference of the shield;
The chipboard should be able to adjust the gap with the circumferential surface of the grinding wheel with the wear of the grinding wheel, and the gap between the two is less than or equal to 6MM;
When the angle of the opening of the grinder guard below the center plane of the grinding wheel spindle is less than or equal to 30 degrees, the chip guard plate may not be provided;
add to favorites Abrasive belt grinding mechanism Pc  
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Abrasive belt grinding is a special form of grinding tool for sanding belts, which is tensioned by means of a tensioning mechanism, and the driving wheel is moved at a high speed, and under a certain pressure, the abrasive belt is brought into contact with the surface of the workpiece to realize The entire process of grinding. Broadly speaking, abrasive belt grinding and grinding wheel grinding are also high-speed micro-edge cutting tools the cumulative effect of micro-cutting of abrasive grains, so the grinding mechanism is basically the same. However, due to the different composition and use of the belt itself, the grinding of the belt is different from the grinding of the 12 inches cut off wheel in terms of the grinding mechanism and its comprehensive grinding performance. 1) Grinding wheel grinding is rigid contact grinding, while belt grinding is elastic contact grinding, even in the case of using inelastic steel contact wheels, because the substrate that makes up the belt is sticky. The knots have a certain elasticity, not to mention the elastic rubber as the contact wheel in most cases. Because of this, the belt grinding has the same sliding, ploughing and cutting effects as the grinding wheel, as well as the pressing action of the abrasive grains on the surface of the workpiece, and causes plastic deformation, chill layer change and surface tearing. And a combination of thermoplastic flow caused by friction causing the temperature of the contact point to rise. Therefore, from this point of view, abrasive belt grinding has multiple effects of grinding, grinding and polishing. This is also the reason why the surface quality of the abrasive belt is ground.12 inches cut off wheel On the other hand, due to the elastic grinding characteristics of the belt, the length of the belt in contact with the workpiece in the grinding area is larger than that of the grinding wheel, and the number of abrasive grains participating in the grinding is large, and the load of the single abrasive grain is applied. Small and uniform, the abrasive particles are damaged. The wear ratio of the entire belt (the ratio of the amount of grinding material removed to the amount of belt abrasive consumption is called the grinding ratio, and the reciprocal of the grinding ratio is called the grinding ratio) is much smaller than that of the grinding wheel. 2) The distribution of the abrasive grains on the grinding surface is disorderly and irregular. In actual grinding, the abrasive grains are cut with a large negative rake angle, a small relief angle or even a negative relief angle. The cutting conditions are very bad. The abrasive belt is different. The abrasive material of the abrasive belt is specially manufactured. The geometry of the abrasive grain is often in the shape of a long triangle, and it is made by a series of advanced techniques such as electrostatic sanding. The size and distribution of the abrasive grain are uniform and the contour is good. And the sharp-edged outward form is implanted on the surface of the abrasive belt substrate, and the portion where the rubberized layer is exposed is more. Therefore, the abrasive grains of the abrasive belt are sharper than the abrasive grains of the grinding wheel, the cutting conditions are good, the material deformation during grinding is small, the cutting rate is high, the grinding force and the accompanying grinding heat are small, and the grinding temperature is low. 3) The grinding wheel is filled with bonding agent, and the chip space is small. The belt space between the abrasive belts is generally at least 10 times larger than that of the grinding wheel. In addition, the abrasive grains have a high contour, so the effective cutting area of ​​the abrasive belt is large, the cutting ability is stronger than the grinding wheel, and the grinding debris can be taken away at any time. Rarely remains on the surface of the belt to cause clogging without increasing the frictional heat and the temperature in the grinding zone is low. 4) The circumference of the belt can far exceed the circumference of the grinding wheel from the design point of view, which makes the belt have a good heat-dissipating area during grinding and can pass the suspended part of the belt. The contact part of the contact wheel, the tensioning wheel, the pressing plate and the like 〉 the oscillation during operation, the grinding debris stuck on the abrasive belt is naturally shaken off, further reducing the phenomenon that the abrasive grains are stuffed, thereby reducing friction and heat generation, which is also One reason for the low grinding temperature of the belt. It can be seen that the processing mechanism of abrasive belt grinding is a more complicated form which is the same as grinding wheel grinding and different from grinding wheel grinding. This is the theoretical basis and the fundamental starting point for analyzing and understanding the grinding mechanism of abrasive belt.

add to favorites Best place to buy RuneScape gold on RSgoldfast Pc  
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Like our youtube videos or facebook, get more off & coins. Such as OSRS gold, RuneScape gold and more, please go to: https://www.rsgoldfast.com/ Thus, the founders gave check it themselves the opportunity to largely transform the world of this game, offering new or thoroughly changed locations and opponents.After all, the overall concept of fun remained roughly unchanged. Users re-engage in the areas of adventurers who roam the less or more dangerous lands, perform tasks, fight creatures, develop their abilities gain gear, participate in craftsmanship, and battle against each other in PvP style. The changes to the first can be seen from the world of the game. The developers gave up the 2D framework to get a isometric view. Nevertheless, the title retains its artistic direction, characterized by a manga-fairy-tale style and a bright palette of colors.I have to say that it promises to be a very long and exciting adventure for a long time, if I had to assess the match on the grounds of a couple hours of gameplay. Just the Minecraft appearance of the cheap OSRS gold surroundings detriments me along with the camera is chained in 1 place. I associate a little with something between Cubic Castles and Portal Knights, with the distinction that in both matches the camera was more notable than in MS2 (when the graphics were like at the very first cinematic, I would be like a little child). But I can tolerate it, at the drought grade and you have to grab something. The upside for me is your timeless character collection.
add to favorites Turn scrap into profits by sand and stone crusher Pc  
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Granite and marble are natural decorative stone, applied to building walls, floors, countertops and other decorative aspects through processing by sand and practical stone crusher in stone factory. Although some artificial stone are in the competition for the decoration market, but in the social pursuit of quality, natural stone will still be able to appeal to more peoples affection.

Processing complete granite countertops by sand and stone crusher in stone factory is from the necessary process of cutting and polishing of blocks, which generates a lot of scrap and stone chips, even some bad blocks with low value. These chips can be bought by construction companies as base material, and the scraps, can be enriched and crushed with sand crusher and stone crusher equipment, for production of higher-value mechanism sand.

There are two viable options for production of higher-value mechanism sand with scraps: 1. Purchase a large gravel sand production line to process waste scraps and rock, and at the same time we can also purchase other stone factory waste, so that we can create a handsome profit; 2. Purchase a small sand making machine just for waste recycling of our stone factory, the profits will be lower, and investment will be small, too.

Anyway, scrap is a kind of resource, we cannot waste it. Therefore, we should combine the local environment, to find a way to process scraps with by sand and stone crusher, for creating the second profit point for stone factories.

add to favorites Mixing and ingredients for grinding wheels Pc  

The ingredients and mixes for the production of cut off disc for stainless steel are the process of weighing and mixing the blanks according to the regulations to ensure the quality of the grinding wheel.
One. The batching scale is normally used with a platform scale, a cut off disc for stainless steel weighing scale, and an automatic scale.
The scale of the platform is expensive, the tolerance is small, and there is no one thousandth of the theoretical weighing. It is reliable and easy to operate. However, it is difficult to achieve automation for medium and small furnaces.
The weighing speed of the weighing car is fast, and the consumption can be satisfied with less weighing car. The investment is less, but the lever blade is easy to be blunt due to the absence of breakage during operation, and the weighing error is suitable for large-scale furnace production.
The automatic scale can realize automatic operation, can prevent natural errors, and has large investment, which is suitable for large furnaces.
Two. Mixing equipment
Most of the mixing equipment uses a concrete mixer.
(1) Coercive concrete mixer Mixing uniformity, high consumption rate, good airtightness, no easy dusting, easy automatic domination, long service life and good reliability. Suitable for large, medium and small furnaces.
(2) Drum-type concrete mixer The price is noble, the reliability is good, the consumption rate is high, and the service life is long. However, it can not be sealed, the dust is large, the mixing material is uneven and uniform, and it is not recommended.
(3) Stress concrete mixer The specifications are shown in the table. It is known to have two types in the long run and can be selected according to the consumption.
three. Mixing process

(1) The mixing blades of the mixer should maintain high quality, often check the wear and tear, and find that the achievements are timely repaired.
(2) Appropriate addition of water to the raw materials and medicines to maintain a certain amount of water in the mixture, and to prevent the lack of carbon in the transportation process due to the dust.

add to favorites Maintenance measures for standard cut off wheel for metal Pc  

thin flat cutting disc is made of resin fiber material, which is not easy to be broken, safe to use, and the cutting performance is particularly remarkable. It is most suitable for cutting high hardness materials such as stainless steel, titanium alloy, nickel alloy, general metal material, unquenched steel, cast iron, alloy cast iron, carbon steel, alloy tool steel, quenched steel, castings and hot brittle materials. It has two types of dry and wet cutting methods, which makes the cutting precision more stable, and its cutting is not black and beautiful. It is characterized by a small load on the machine, fast cutting and durability.

    Nowadays, this cutting piece is often used for the cutting of stainless steel pipes, capillaries, glass tubes, quartz tubes, automobile exhaust pipes, brake wires, tungsten wires, molybdenum wires, copper wires and other pipe and filaments, and it is for special steel. The cutting and the slotting of the workpiece have a good effect. In order to extend the service life of stainless steel special cutting blades, it is necessary to carry out corresponding maintenance. From the relevant industry, we have learned that the common maintenance measures for high performance cutting discare as follows:

1. When the cutting piece is no longer sharp and the cutting surface is rough, it must be repaired in time. Grinding does not change the original angle and destroys the dynamic balance.
2. If the cutting piece is not used immediately, it should be laid flat or suspended by the inner hole. The other pieces or feet should not be stacked on the flat saw blade, and attention should be paid to moisture and rust.
3. The inner diameter correction of the cutting piece and the processing of the positioning hole must be carried out by the factory. If the processing is poor, it will affect the product use effect, and may be dangerous. The hole expansion principle should not exceed the original hole diameter of 20mm in order to avoid affecting the stress balance.
In short, only keep in mind the maintenance measures of the above special stainless steel cutting blades, in order to make it better extend its service life.

add to favorites Grinding wheel outer spherical surface and double end Pc  
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When grinding, the axis of the grinding wheel should be equal to the axis of the workpiece to ensure the roundness of the spherical surface. The error of the contour can usually be judged based on the grinding pattern. If the surface of the ball is convex, it indicates that the grinding wheel is grinding in the lower half of the grinding wheel, that is, the center of the grinding wheel is lower than the center of the workpiece. At this time, the center position of thethin abrasive cutting disc for metal should be adjusted so that it is equal to the center of the workpiece until it is ground. The surface of the sphere has a cross-web pattern. The error is required to be within 0.003-0.004mm.
When grinding the outer spherical surface, the grinding wheel frame should be rotated at a certain angle, so the trimming of the inner hole size of the grinding wheel should be completed before the machine tool is adjusted. After the grinding wheel is blunt in the grinding process, it is not necessary to trim the inner hole. It is only necessary to trim the end surface of the grinding wheel with a sand bar, so that the grinding wheel can be restored sharply and the inner hole size of the grinding wheel can be kept unchanged. After the grinding wheel is blunt, it should be repaired in time to ensure the quality of the processing.thin abrasive cutting disc for metal Since the grinding wheel axis and the workpiece axis cannot be absolutely equal when the spherical grinding is performed, a small step is generated on the workpiece, which affects the accuracy of the workpiece. At this time, a center hole of less than 1 mm can be drilled at the top of the spherical surface to avoid.
When grinding on both sides, the two grinding wheels cannot be adjusted to parallel position
The two grinding wheels should be adjusted to an inclined angle to form a thick, fine, and light-grinding zone between the grinding wheels. The size of the feed port should be 2/3 grinding allowance for the finished product size, and the size of the discharge port should be the finished product size.
In double-face grinding (straight-through feed), the parallelism of the workpiece cannot be ignored.
1) If the accuracy of the perpendicularity of the double-face grinding machine is too poor, the accuracy of the parallelism of the workpiece will be low. The grinding head should be overhauled and calibrated to make it accurate.
2) If the feeding or discharging guide is not parallel to the grinding wheel, the parallelism of the workpiece will be excessive. The feeding and discharging layers should be adjusted.
3) If the feeding speed is not uniform during grinding, the parallelism of the workpiece will be too bad. The feeding mechanism should be checked and adjusted.
add to favorites Grinding wheel outer spherical surface and double end Pc  
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When grinding, the axis of the grinding wheel should be equal to the axis of the workpiece to ensure the roundness of the spherical surface. The error of the contour can usually be judged based on the grinding pattern. If the surface of the ball is convex, it indicates that the grinding wheel is grinding in the lower half of the grinding wheel, that is, the center of the grinding wheel is lower than the center of the workpiece. At this time, the center position of thethin abrasive cutting disc for metal should be adjusted so that it is equal to the center of the workpiece until it is ground. The surface of the sphere has a cross-web pattern. The error is required to be within 0.003-0.004mm.
When grinding the outer spherical surface, the grinding wheel frame should be rotated at a certain angle, so the trimming of the inner hole size of the grinding wheel should be completed before the machine tool is adjusted. After the grinding wheel is blunt in the grinding process, it is not necessary to trim the inner hole. It is only necessary to trim the end surface of the grinding wheel with a sand bar, so that the grinding wheel can be restored sharply and the inner hole size of the grinding wheel can be kept unchanged. After the grinding wheel is blunt, it should be repaired in time to ensure the quality of the processing.thin abrasive cutting disc for metal Since the grinding wheel axis and the workpiece axis cannot be absolutely equal when the spherical grinding is performed, a small step is generated on the workpiece, which affects the accuracy of the workpiece. At this time, a center hole of less than 1 mm can be drilled at the top of the spherical surface to avoid.
When grinding on both sides, the two grinding wheels cannot be adjusted to parallel position
The two grinding wheels should be adjusted to an inclined angle to form a thick, fine, and light-grinding zone between the grinding wheels. The size of the feed port should be 2/3 grinding allowance for the finished product size, and the size of the discharge port should be the finished product size.
In double-face grinding (straight-through feed), the parallelism of the workpiece cannot be ignored.
1) If the accuracy of the perpendicularity of the double-face grinding machine is too poor, the accuracy of the parallelism of the workpiece will be low. The grinding head should be overhauled and calibrated to make it accurate.
2) If the feeding or discharging guide is not parallel to the grinding wheel, the parallelism of the workpiece will be excessive. The feeding and discharging layers should be adjusted.
3) If the feeding speed is not uniform during grinding, the parallelism of the workpiece will be too bad. The feeding mechanism should be checked and adjusted.
add to favorites History of diamond sawing Pc  
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Diamond saw blades are one of the diamond products and are the most widely used diamond products in the world. Despite the record of diamond saw blades for sawing stone in 1854, the truly effective diamond circular saw blade was designed by Frenchman Jacquinin 30 years later and was used for the actual cutting of stone for the first time in 14 years.7'' cut off disc for metal The abrasives used at the time were all natural diamonds (diamonds). Initially, large particles of natural diamond were inlaid into the cast steel insert by hand, and the insert was attached to the saw blade substrate for cutting. But the effect is not satisfactory. In the late 1930s, the diamond block powder metallurgy manufacturing technology that mixed metal powder with diamond and sintered was developed, and the design and manufacturing technology of the diamond saw blade has made great progress.

 Since the first synthetic diamond was successfully synthesized, the diamond saw blade design and manufacturing technology has been continuously improved. At the end of the last century, China's diamond saw blade design and manufacturing technology, along with the rise of stone processing industry, architectural decoration industry and road and bridge construction, has also achieved extraordinary development, especially since 1993, due to rising raw material prices, market competition has intensified. In order to reduce costs and improve product quality, diamond saw blade manufacturers have increased investment in scientific research, and various new theories and new technologies have emerged. The design and manufacture of diamond saw blades mainly include sawtooth bond design, sawtooth shape or structural design, and saw blade manufacturing technology. Looking back on the development of diamond saw blades, 7'' cut off disc for metal the design and manufacturing technology of diamond saw blades has obtained a lot of research results.

add to favorites The steps that the grinding wheel needs to know to sharpen the crescent Pc  
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thin flat cutting disc
The steps for grinding the crescent in the grinding wheel are as follows:
1 Hand-held drill bit makes the main cutting edge basically horizontal to ensure the right edge angle is appropriate. The outer edge of the outer straight edge is not allowed to be tilted.
2 When starting to sharpen, the drill bit should be fed slowly and smoothly forward and horizontally, and the back should be ground to form a circular arc. The radius of the arc and the length of the outer edge should be guaranteed. If the fillet radius of the grinding wheel is less than the value of the radius of the arc, the drill should also be slightly swung in the horizontal plane to obtain the desired radius of the arc.
3 The drill bit must not swing up and down in the vertical plane, or the sintering shaft rotates, otherwise the chisel edge becomes S-shaped, the chisel angle of the chisel edge becomes smaller, and the arc shape is also difficult to control symmetry.
4 When turning the drill bit 180° on the other side of the sharpening, special attention should be paid to maintaining the symmetry of the arc and the tip of the drill.
add to favorites Grinding wheel grinding process overview Pc  
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The grinding wheel is a grinding cutting tool that consists of a number of small, hard abrasive particles and a bonding agent. The abrasive particles are directly responsible for the cutting work and must be sharp and have high hardness, heat resistance and certain toughness. Commonly used abrasives are alumina (also known as corundum) and silicon carbide.China supply 7" cut off disc Alumina abrasives have high hardness and good toughness and are suitable for grinding steel. Silicon carbide abrasives are harder, sharper, and have better thermal conductivity, but are brittle and suitable for grinding cast iron and hard alloys.

Due to the different thickness of the grinding wheel, the surface roughness and processing efficiency of the workpiece after processing are different. The coarse abrasive grains are used for rough grinding, the fine abrasive grains are suitable for fine grinding, the coarser the abrasive is, the smaller the grain size is.

The binder acts to bond the abrasive. Ceramic binders are commonly used, followed by resin binders. Different binder materials affect the corrosion resistance, strength, heat resistance and toughness of the grinding wheel.

The harder the abrasive grain bond is, the less likely it is to fall off the grinding wheel. The hardness of the grinding wheel, that is, the hardness of the grinding wheel, refers to the difficulty of the abrasive grains on the surface of the grinding wheel falling off under the action of external force. Easy to fall off is called soft, otherwise it is called hard. The hardness of the grinding wheel and the hardness of the abrasive are two different concepts. The surface of the workpiece to be ground is soft, and the edge (edge) of the abrasive grain is not easy to wear, China supply 7" cut off discso that the abrasive grain can be used for a longer period of time, that is, the grinding wheel (harder wheel with higher hardness) can be firmly bonded. Conversely, a grinding wheel with a low hardness is suitable for grinding workpieces with high hardness.

The grinding wheel works under high speed conditions. In order to ensure safety, it should be inspected before installation, and there should be no defects such as cracks. In order to make the grinding wheel work smoothly, the dynamic balance test should be carried out before use.

After the grinding wheel has been working for a certain period of time, the surface gap will be blocked by the grinding debris, the sharp angle of the abrasive will be blunt, and the original geometry will be distorted. It must therefore be trimmed to restore cutting power and the correct geometry. The grinding wheel needs to be trimmed with a diamond pen.

Grinding is a method of cutting a workpiece with a grinding wheel as a cutting tool on a grinding machine. The characteristics of this method are:

(1) Since the grinding wheel itself has high hardness and heat resistance, the grinding can process materials with high hardness, such as hardened steel and hard alloy.
(2) The characteristics of the grinding wheel and the grinding machine determine that the grinding process system can make uniform micro-cutting, generally ap=0.001~0.005mm; the grinding speed is very high, generally up to v=30~50m/s;
the grinding machine has good rigidity; Hydraulic drive, so grinding can economically achieve high machining accuracy (IT6~IT5) and small surface roughness (Ra=0.8~0.2μm). Grinding is one of the main methods of finishing parts.
(3) The temperature in the grinding zone is high due to severe friction. This can cause stress and deformation of the workpiece and even burn the surface of the workpiece. Therefore, a large amount of coolant must be injected during grinding to reduce the grinding temperature. The coolant can also act as chipping and lubrication.
(4) The radial force during grinding is large. This causes the machine-grinding-workpiece system to retreat so that the actual depth of cut is less than the nominal depth of cut. Therefore, when the grinding is about to be completed, the knife should not be used for light grinding to eliminate the error.
(5) After the abrasive grain is blunt, the grinding force also increases, causing the abrasive grain to break or fall off, and the sharp edge is re-exposed. This characteristic is called "self-sharpness". Self-sharpening makes grinding at a certain time. The internal energy can be carried out normally, but after a certain working time, manual trimming should be carried out to avoid the vibration, noise and damage to the surface quality of the workpiece caused by the increase of the grinding force.

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Reasonable arrangement of machining process

1) The size of the wire-cut workpiece blank should be determined according to the size of the part, and should not be too small. In general, the pattern should be located in the middle of the blank or at a position far from the edge of the blank and not easily deformed. Usually, the pattern should be taken to the blank margin of more than 10 mm;
2) Where a large cavity or a narrow and complex punch is used, the traditional solid sheet habit is changed when preparing the blank. Large frame cavity, narrow and long cavity and other easily deformable parts, the middle part should be hollowed out. In this way, the condition in the surface is improved when quenching, the temperature difference is small, the generated stress is small, and the volume to be cut at the time of cutting is small, and the stress is balanced and not damaged;
3) In the case where the mold is allowed to use, China cut off disc the corner of the large frame-shaped cavity part should be appropriately increased, or the blanking point should be drilled before the line cutting to alleviate the phenomenon of stress concentration;
4) For the punched part, before the quenching, the threading hole of the starting point of the shape should be drilled in the bump blank, so that the workpiece maintains the internal stress balance and is not damaged during cutting, so as to avoid cracking deformation from the outside of the material.

Optimize the process plan of wire cutting and select reasonable process parameters

1) The traditional habit of changing the cutting position in one place is the coarse and fine secondary cutting, so that the deformation amount after the first rough cutting is corrected in time in the fine cutting. Generally,China cut off disc the cutting amount during fine cutting should be determined according to the amount of deformation after the first cutting, and generally takes about 0.5 mm. This method is often applied to parts with complex shapes that are bound to be deformed or molds that require high precision and small clearance;
2) The habit of changing the two-point clamping is single-point clamping, so that the deformation during the cutting process can be freely stretched, and the interference of the two-point clamping on the deformation is prevented, but it should be noted that the reasonable part of the single-point clamping is usually at the end program. Where. The deformation produced in this way only affects the scrap portion and avoids the influence on the molded portion;
3) For the easily deformed cutting parts, the starting point of the cutting, the program direction and the clamping position should be arranged according to the shape characteristics of the parts to reduce the deformation amount. Generally, the starting point of the line cutting should be set in a flat, finished or incompletely affected part of the workpiece.
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  1. The actual line speed of the fast grinding wheel for stainless steel shall not exceed the requirements of the following table.   2. Before the installation of the fast grinding wheel for stainless steel, check the speed mark of the grinding wheel, check whether there are cracks and damages, and check the strength.   3. After the installation of the grinding wheel, it must be idling for not less than 5 minutes with the protective cover. Only when it is sure that the fast grinding wheel for stainless steel has reliable strength can it start working.   4. It is forbidden to use a coolant that has a destructive effect on the grinding wheel binder.   5. When handling the fast grinding wheel for stainless steel, it is necessary to prevent severe vibration and impact.   6, according to the size and shape of the grinding wheel, should be placed on the shelf and in the box.   7. The fast grinding wheel for stainless steel should be stored to prevent moisture and freezing.   8. The storage period of the resin bond grinding wheel shall not exceed one year. If it is overdue, it must be strictly checked to confirm that the quality is no problem before it can be used.
add to favorites Storage and use of grinding wheels Pc  
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  1. The actual line speed of the fast grinding wheel for stainless steel shall not exceed the requirements of the following table.   2. Before the installation of the fast grinding wheel for stainless steel, check the speed mark of the grinding wheel, check whether there are cracks and damages, and check the strength.   3. After the installation of the grinding wheel, it must be idling for not less than 5 minutes with the protective cover. Only when it is sure that the fast grinding wheel for stainless steel has reliable strength can it start working.   4. It is forbidden to use a coolant that has a destructive effect on the grinding wheel binder.   5. When handling the fast grinding wheel for stainless steel, it is necessary to prevent severe vibration and impact.   6, according to the size and shape of the grinding wheel, should be placed on the shelf and in the box.   7. The fast grinding wheel for stainless steel should be stored to prevent moisture and freezing.   8. The storage period of the resin bond grinding wheel shall not exceed one year. If it is overdue, it must be strictly checked to confirm that the quality is no problem before it can be used.