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add to favorites Important factors affecting the efficiency of fine screening   No  
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Careful operation of a grinding operation to ensure the stability of the qualified particle size, can effectively improve the screening efficiency of Screen, and at the same time can significantly improve the quality of concentrate. One of the important factors influencing the efficiency of fine screening is the size of the product entering the fine screen. If the percentage of acceptable particle size in the product is large, the screening efficiency is higher. enter The key to the fine grain size of the Screening Machine is how effective the first stage of grinding is. If the first section of the ore changes due to ore changes and the amount of ore changes, or When the operator improperly causes the particle size to run coarse, when the overflow product enters the fine sieve, not only will the efficiency decrease, but also a "vicious circle" will cause the concentrate to taste sharply. drop. In addition, as the concentrate grade increases beyond the limit, the amount of beneficial impurities required for blast furnace smelting will be lost or greatly reduced. Of course for acid ore ore The requirements for iron ore of different nature are not the same. Therefore, how to improve the quality of the concentrate must be determined according to the nature of the ore and the requirements of the user. Raymond mill, cement ball mill, high-fine ball mill, superfine grinding...
add to favorites Jaw crusher for Concrete crushing   No  
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Concrete Crushers, Construction Waste Crusher is also called, is an expert in our collection in advanced crushing technology, and similar products at home and abroad on the basis of successful experience, and developed a kind of high efficiency, energy saving and broken equipment, is one of the fist products of the company, its design concept and manufacturing technology in the similar products at home and abroad have been in a leading level. Mainly used for medium size crushing all kinds of ores and large materials, can be broken material compressive strength is no more than 320 mpa, is the first choice for primary crushing equipment.

Concrete Crusher Features

1, the Concrete Mica Stone Crushing Machine crushing cavity depth and no dead zone, greatly improving the feeding capacity and production. 2, Concrete Crushers and broken than large, to produce a product granularity. 3, Concrete Crushers used the gasket type discharging mouth adjusting device, reliable performance and convenient to use when the adjusting range is big, to increase the flexibility of the equipment. 4, Concrete Crushers developed by using the latest security reliable lubrication system, many convenient replacement is better than the original parts and convenient for maintenance of the equipment. 5, Concrete Crushers has simple structure, reliable operation, low operating costs. Equipment and energy saving: stand-alone energy saving 15% ~ 30%, the system energy saving more than double. 6, Concrete Crushers the discharging mouth of the adjusting range is larger than general crusher, can meet the requirements of different users. 7, Concrete Crushers work low noise, little dust, is the new generation of environmental protection machine.

Our Concrete Crushers product specification is complete, the main points and PE, the PEW two big series, PE series of large jaw crusher is mainly used for coarse crushing, and, in the PEW series is used to finely. The two series of jaw crusher has big crushing ratio, uniform end product size, simple structure, reliable operation, easy maintenance and operation cost is economic and other characteristics, has been widely used in mining, metallurgy, concrete materials, water conservancy, chemical industry, refractory materials and ceramic, and many other industrial sectors, the limestone, granite, basalt, marble, quartz, iron ore, cobble, pebbles and other large pieces of ore and rock crushing, effect is good.

add to favorites 4 inches China grinding disc factory introduces the processing technology of grinding wheel   No  
4 inches China grinding disc factory introduces the processing technology of grinding wheel Speaking of ultra-thin grinding wheels, I don't know how much you know. Ultra-thin grinding wheels are of great help to the large machinery industry, such as the cutting of steel pipes. If there is no cutting piece, there is no way to cut them. Therefore, its application is also very much. Ultra-thin grinding wheel belongs to the grinding wheel and is also a kind of grinding tool. Nowadays, there are three kinds of common processes for producing such resin grinding wheel cutting piece. The following 4 inches China grinding disc factory is introduced for everyone. 1. Cold pressing process: the bonding agent used is a wetting agent and a powdery resin. It is usually used as a wetting agent for liquid phenolic resin, furfural, decyl alcohol, cresol, etc. The most used is liquid phenolic resin. 2. Semi-hot pressing process: the pressing temperature is generally 50-65 ° C. At this pressing temperature, the viscosity of the liquid resin becomes small, and the powdery resin can be well integrated so that the fluidity of the entire resin system is improved. It is easier to penetrate all the spaces, even if the pressure of the press is not too high, it can be well-formed, and the holding time does not need to be too long, especially suitable for the automatic pressing production line for continuous operation. 3. Hot pressing process: The mixing requirement is different from the cold pressing process. Generally, dry mixing method is used, or 1% of furfural less than the weight of the abrasive is used as a wetting agent to wet the abrasive, and then mixed with the powdered resin evenly. Now, ultra-thin grinding wheels have been used for cutting 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 the slotting of the workpiece has a very good effect. Today, the knowledge about the ultra-thin, the 4 inches China grinding disc factory introduced this, if you want to know more about the grinding wheel cutting piece, the grinding wheel ultra-thin, Henan abrasive grinding machine details Please pay attention to the latest information on our website.
add to favorites Stainless steel grinding wheel material   No  
For the grinding wheel for stainless steel we use, there are many kinds, such as common brown fused alumina, white corundum, silicon carbide, among these materials, silicon carbide is the hardest, and brown fused alumina is the weakest. Therefore, today, Henan abrasives manufacturers come to give you a general introduction, what are the characteristics of stainless steel grinding wheel materials? 1. The grinding wheel for stainless steel made of white corundum: It is made of industrial alumina powder as raw material, cooled in the arc by high-temperature smelting above 2000 degrees, and then pulverized and shaped, magnetically selected to remove iron, sieved into various granularities, and its texture is dense. It has high hardness and sharp corners. It is suitable for the manufacture of ceramics, resin-bonded abrasives, grinding, polishing, sandblasting, precision casting (special corundum for precision casting), etc. It can also be used to manufacture advanced refractory materials. 2. The grinding wheel for stainless steel made of brown corundum: using bauxite and coke (anthracite) as the main raw materials, it is made by high-temperature smelting in an electric arc furnace, and the grinding tool made of it is suitable for grinding high tensile resistance metal. Such as a variety of general steel, malleable iron, hard bronze, etc., can also manufacture advanced refractory materials. It has high purity, good crystallization, strong fluidity, low coefficient of linear expansion, corrosion resistance. 3. The grinding wheel for stainless steel made of silicon carbide: It is made of quartz sand, petroleum coke (or coal char) and wood chips as raw materials through high-temperature smelting of electric resistance furnace. In contemporary non-oxide high-tech refractory raw materials such as C, N, and B, Silicon carbide is the most widely used and economical type. It can be called gold steel sand or refractory sand. The above is the material of the grinding wheel for stainless steel introduced by Henan Abrasives Factory today. We can understand the different materials. The material of stainless steel grinding wheel has different characteristics. I hope to help everyone. If you want to know more about grinding wheel cutting, grinding wheel ultra-thin, abrasive grinding tools, please contact us.
add to favorites Correct cutting blade usage l/mile No $
The influence of the aluminum flat cutting disc itself on the clogging, the different chemical affinity of the different abrasives and the workpiece material are different. The grinding temperature is different, and the grinding force is different. In order to reduce the clogging degree, different workpiece materials should be selected for different workpiece materials. Matching of the abrasive grains of the cutting piece and the material of the workpiece Grinding iron-carbon alloy with corundum abrasive, carbon forms a thin oxide film in the air and oxygen, which can effectively prevent the chemical affinity between the workpiece and the abrasive. However, grinding the titanium alloy is more serious. It is. The thermal stability of the abrasive also has a significant effect on the clogging, and the abrasive with good thermal stability is much lighter than the clogging with poor thermal stability. When grinding titanium alloy with cubic boron nitride abrasive, the grinding efficiency is several times higher than that of the white jade abrasive cutting piece. Relationship between abrasive grain size and grinding amount Under the premise of the same abrasive grain size, the finer the abrasive, the more the abrasive grain size in the circumference of the cutting piece, the more uniform, the more the number of pores, but the smaller the volume of a single pore, in the same grinding parameters Next, the fine cutting piece is easily clogged. In semi-finishing and fine grinding, the number of cuttings is large, the amount of cutting is small, the temperature is low, the clogging is light, and a fine cutting piece is often selected. In rough grinding, the cutting amount is large, the grinding temperature is high, and the grinding debris and the sintered material which are clogged in the pores are many, and the coarse cutting piece should be selected. Matching hardness of the cutting piece to the material of the workpiece The hardness of the binder and the hardness cutting piece refers to the difficulty of the abrasive particles falling off, which is ensured by the strength of the adhesive, and they have a great influence on the clogging of the cutting piece. The higher the strength of the binder, the greater the hardness of the cutting piece, the more the granules are blunt, the more severe the scratching and extrusion of the workpiece before the abrasive particles fall off, and the grinding debris is more easily mechanically filled into the pores of the cutting piece. The grinding debris in the gap of the cutting piece exacerbates the friction and extrusion of the cutting piece on the workpiece material, and the grinding debris is strengthened in the process. This process is accompanied by more frictional heat, which provides the adhesive blockage. Fused material. Therefore, the higher the hardness of the cutting piece, the more serious the blockage. Therefore, when grinding difficult workpiece materials, choose a softer cutting piece. Cutting tissue The tissue cutting piece of the cutting piece reflects the proportional relationship between the abrasive, the binder and the pores. The denser the tissue, the smaller the ratio of the pores, the smaller the distance between the cutting edges, and the cutting piece is more likely to be clogged. The dicing sheet containing 53% abrasive grains was twice as high as the average clogging amount of 49.2% abrasive grains, and the dicing sheet containing 45% abrasive grains was less than half the average clogging amount of 49.2% abrasive grains. When grinding difficult-to-machine materials, the cutting piece with the organization number 7-8 should be selected.
add to favorites The story of The high quality metal grinding disc   No  
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The ultra-thin of the high quality metal grinding disc is described in the most popular language. The thinnest cutting piece of the grinding disc is known. The grinding disc is the most important type of grinding tool in the grinding process. The grinding disc is a porous body which is prepared by adding a binder to the abrasive, and compacting, drying and calcining. Due to the difference in the production process and technical characteristics, manufacturers have an important influence on the processing quality, productivity, and economy of grinding. The characteristics of the high quality metal grinding disc are mainly determined by the abrasive, strength, bonding agent and size. To help you better understand this, let's take a look at this information. According to the abrasive used, it can be divided into ordinary abrasive (corundum and silicon carbide) grinding disc and natural abrasive super-hard abrasive and (diamond and cubic boron nitride) grinding disc; according to the shape, it can be divided into flat grinding disc, oblique side grinding disc, cylindrical grinding disc, Cup-shaped grinding disc, dish-shaped grinding disc, etc.; according to the bonding agent can be divided into ceramic grinding disc, resin grinding disc, rubber grinding disc, metal high quality metal grinding disc and so on. The characteristic parameters of the grinding disc mainly include abrasive, viscosity, hardness, binder, shape and size. Since the grinding disc usually works at high speed, the slewing test (to ensure that the grinding disc does not break at the highest working speed) and the static balance test (to prevent machine vibration during operation) should be performed before use. After the high quality metal grinding disc has been in operation for a period of time, it should be trimmed to restore the grinding performance and the correct geometry. The high quality metal grinding disc on the grinding machine is characterized by a high temperature in the grinding zone 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. 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. The story about the high quality metal grinding disc in the grinding process shared by the manufacturer of the grinding disc ultra-thin manufacturer is here. For those who are interested in the grinding disc, please come to the website to consult the price.
add to favorites The story of The high quality metal grinding disc   No  
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The ultra-thin of the high quality metal grinding disc is described in the most popular language. The thinnest cutting piece of the grinding disc is known. The grinding disc is the most important type of grinding tool in the grinding process. The grinding disc is a porous body which is prepared by adding a binder to the abrasive, and compacting, drying and calcining. Due to the difference in the production process and technical characteristics, manufacturers have an important influence on the processing quality, productivity, and economy of grinding. The characteristics of the high quality metal grinding disc are mainly determined by the abrasive, strength, bonding agent and size. To help you better understand this, let's take a look at this information. According to the abrasive used, it can be divided into ordinary abrasive (corundum and silicon carbide) grinding disc and natural abrasive super-hard abrasive and (diamond and cubic boron nitride) grinding disc; according to the shape, it can be divided into flat grinding disc, oblique side grinding disc, cylindrical grinding disc, Cup-shaped grinding disc, dish-shaped grinding disc, etc.; according to the bonding agent can be divided into ceramic grinding disc, resin grinding disc, rubber grinding disc, metal high quality metal grinding disc and so on. The characteristic parameters of the grinding disc mainly include abrasive, viscosity, hardness, binder, shape and size. Since the grinding disc usually works at high speed, the slewing test (to ensure that the grinding disc does not break at the highest working speed) and the static balance test (to prevent machine vibration during operation) should be performed before use. After the high quality metal grinding disc has been in operation for a period of time, it should be trimmed to restore the grinding performance and the correct geometry. The high quality metal grinding disc on the grinding machine is characterized by a high temperature in the grinding zone 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. 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. The story about the high quality metal grinding disc in the grinding process shared by the manufacturer of the grinding disc ultra-thin manufacturer is here. For those who are interested in the grinding disc, please come to the website to consult the price.
add to favorites Introduction to diamond cutting tablets l/mile No $
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The reason why the aluminum flat cutting disc is taken out separately is because many people do not know too much about the diamond cutting piece and are easy to enter the wrong zone. Anyone who sees the word "diamond" will only have one idea, that is, "hard". At present, diamond is the hardest material in nature, so the abrasives made of diamond have inherent advantages, especially when used in difficult-to-grind materials. Below is a table showing the hardness indexes of various abrasives. This form is on the textbook of a university in Taiwan. I have not specifically figured out which hardness standard the “HK” refers to, but from the table. It can be seen that the hardness comparison between the hardness of various materials is somewhat similar to the method of marking Mohs hardness. You can make a reference: Abrasive hardness (HK) Diamond (D) 7000 Silicon carbide (GC) 2550 Silicon carbide (C) 2500 Alumina (HA) 2300 Alumina (WA) 2200 Alumina (A) 2000 Sintered alumina 1300 The diamond cutting piece is mainly made of diamond as the main abrasive, and then combined by the bonding agent. The bonding agent is roughly divided into four types: metal, resin, ceramic and electroplating, and can be made into various shapes. Diamond cutting discs can be used for grinding, polishing, grinding and other purposes. At the same time, it is used to grind high hardness alloys and non-metal materials. The diamond has high hardness, high compressive strength and good wear resistance, making the diamond cutting piece the most ideal tool for hard and brittle materials and hard alloys in grinding. The diamond cutting piece is not only efficient but also high precision, and after grinding The surface roughness of the workpiece is good, the cutting piece is consumed less, the service life is long, and at the same time, a large amount of dust is not generated during grinding, and the working condition is improved. The use of diamond cutting sheets: low-iron content metal and non-metal hard and brittle materials that are difficult to process in common cutting sheets, such as: hard alloy, agate gemstone, semiconductor material, glass, high-aluminum ceramic, stone, etc. Here, please note that it is "low iron content of metal and non-metal materials"
add to favorites Research Status of Resin Bonding Diamond Cutting Disc l/mile No $
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The resin bond diamond cutting disc is made of a resin powder as a bonding material, a filler material is added, and a grinding tool having a certain shape is formed by a process such as hot pressing, hardening, and machining. Recently, domestic binders used as resin bond diamond cutting discs mainly include phenolic resin, epoxy resin and polyimine, but their common problem is poor heat resistance, and the grinding heat generated during grinding can cause heat. The resin softens, decomposes, and the adhesion to the abrasive decreases. The diamond abrasive does not play a good role in the grinding process and is easily peeled off in a large amount, so the durability is poor. Phenolic resin (PF) is the world's first industrialized synthetic resin. It is widely used aluminum flat cutting disc, but ordinary phenolic resin can be used stably as a resin binder for cutting discs below 200 °C. At 200 ° C, its phenolic hydroxyl group and methylene group will oxidize, affecting its heat resistance and oxidation resistance; the cured phenolic resin is brittle due to the mesentic group only between the nucleus, so the traditional has not changed The phenolic resin has large brittleness, poor toughness and insufficient heat resistance, which limits the application of the resin bond diamond cutting disc. Therefore, it is necessary to prepare a high performance phenolic resin. In recent years, domestic and international attention has been paid to the modification of phenolic resin and the strengthening and toughening of its composite materials. A series of high-strength phenolic resin with excellent heat resistance and flame retardancy have been developed, such as Liu Xiaohong and other synthetic molybdenum reforms. Phenolic aldehyde has a thermal decomposition temperature of 522 ° C, and the weight loss rate at 600 ° C is still 17.5%. The friction material made of the friction material has stable high temperature friction coefficient and good heat recovery; Xiong Xuemei et al. The polysulfone was introduced into the phenolic resin, and the sisal fiber was used as the reinforcement of the modified phenolic resin. The friction composite technology was used to make the friction composite material. The results showed that the introduction of polysulfone could improve the heat resistance of the phenolic resin and compound The friction properties of the material are very good. Zhou Yuankang added the dispersed SiO 2 nanoparticles in the polymerization process of tung oil modified phenolic resin to prepare a composite modified thermosetting phenolic resin, which is used in friction materials and resists thermal decay. Sexual and frictional performance has been significantly improved.
add to favorites Some details of China abrasive tools for metal   No  
In today's technologically advanced market, we don't know how much we know about china abrasive tools for metal, but the development of the abrasives industry in our market is relatively good. But what many people usually pay attention to is basically some of the things in life. Or is it the industry dynamics that the industry likes to pay attention to. But we learn the relevant content of China abrasive tools for metal, which may be useful to us in the future. Then today, Henan abrasives manufacturers explain some details of abrasives. China abrasive tools for metal are the general term for abrasives and abrasives: abrasive products and abrasive products. Abrasives are known as industrial teeth. Abrasives or abrasive tools are used as grinding tools for grinding parts. Processing, and meet certain technical requirements. Commonly used china abrasive tools for metal mills have cutting and grinding wheels, louver discs, quick-change grinding discs, grinding rolls, bonded grinding wheels, Chiba grinding rings and sandpaper grinding rings, non-bonded Chiba grinding wheels. , Chiba grinding wheel, sandpaper roll and cashmere. Then the purpose of abrasive grinding tools is grinding, polishing, grinding, cleaning, cutting, drilling. Some of the above contents are some details of China abrasive tools for metal produced by Henan abrasives manufacturers. Those who work in this industry should know that the role of China abrasive tools for metal is very large, so sometimes it is difficult to choose. After all, there are too many abrasives on the market, so our Henan Aurora Abrasive Tool Co., Ltd. specializes in grinding wheel cutting, grinding wheel ultra-thin, and interested people are welcome to visit the website.
add to favorites The different materials of the grinding wheel are suitable for different occasions   No  
The fast working grinding wheel is used more and more with the needs of the industry. The cutting discs belong to the grinding wheel, and the sheets made of ordinary steel, stainless steel and non-metal are made of abrasive and binder resin. Now let us Learn more about the lower wheel cutting piece: 1. The fast working grinding wheel hardness: Common hardness: P, Q, R; N, S; generally use a harder grinding wheel to reduce wheel wear. The hardness is controlled by factors such as the amount of binder, molding density, firing temperature and firing time. 2. Bonding agent: Common resin binders for fast working grinding wheels are powdered phenolic resin and liquid phenolic resin. Powdered phenolic resin has good processability, the molding density of abrasive tools is slightly smaller, the tissue number is slightly larger, and the price is higher than liquid phenolic resin; the price of liquid phenolic resin is low, but the material is easy to agglomerate and the mixed material is not easy to be uniform, which is easy to cause local abrasive parts. hard. 3. Organization: The organization number of the fast working grinding wheel should be slightly larger to improve the cutting efficiency: too large and affect the strength. The commonly used organization number is 3-7. Different types of fast working grinding wheel are also suitable for cutting products. This requires us to pay great attention, because if you buy an improper grinding wheel, it is very easy to break the event, etc., you must choose high quality when purchasing. Merchants buy the most suitable fast working grinding wheel for your use.
add to favorites What is the hardness range of the cone crusher that can be broken?   No  
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The cone crusher is well known as a medium-sized and fine-crushing mining machine, but a large number of customers do not know whether their materials can be crushed by a cone crusher. This involves the problem of the hardness range of the Crusher Equipment. Let me introduce you below. 1. Analysis from the nature of the material First of all, the cone crusher is crushed by the extrusion and wear of the material between the fixed cone and the moving cone, while the fixed cone and the moving cone are made of steel, which has a certain tolerance to the pressure. Then in order to achieve material crushing, first of all, the material itself must have a certain degree of brittleness. For example, a material such as a tire cannot be broken by a cone crusher. And the key is that the material hardness should be within the acceptable hardness range of the cone crusher. 2, analysis from the requirements of finished products In fact, sometimes from the objective conditions, plastic, glass, etc. can be broken with a cone crusher, after all, the hardness is below the hardness range of the Quarry crusher. However, the cone crusher is quite famous for the crushing of ore. On the one hand, the cone crusher is designed for mine crushing. On the other hand, the cone crusher cannot meet the customer's requirements for materials such as glass and plastic. Finished product requirements.
add to favorites SBM Will Attend the Bauma CHINA 2018 Shanghai   No  
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Bauma CHINA 2018 will bring together more than 3,000 exhibitors at home and abroad, covering construction machinery, mining raw materials extraction and processing equipment, building materials machinery, supporting parts and service providers, to show the innovative development of the industry.

Bauma CHINA 2018 will be held in Shanghai New International Expo Centre on 27-30 November 2018. As an extension of Bauma Germany, a world-renowned exhibition of construction machinery in China, Bauma CHINA has become a competitive arena for global construction machinery enterprises. There are many high-quality enterprises gathered here, showing tens of thousands of innovative products and technologies, and witnessing the inheritance of the wisdom of construction machinery.

SBM is a good brand in the global construction machinery industry. This exhibition will bring you a perfect experience of innovative technology and intelligent equipment with brand-new exhibits, excellent quality and innovative display, highlighting SBM's image of high quality and internationalization in an all-round way.

Tickets:

Free of charge if you register in advance online.

add to favorites Matters needing attention when using portable electric cutting blades 125.00 l/mile No $ 125.00
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1. Select the cutting piece whose structural characteristics are in accordance with the material to be ground and the grinding property. Before use, perform a comprehensive performance check and then install it by a special person. 2. Adjustable cutting blade protective cover should be used to adjust according to work requirements at any time; the maximum exposed angle of the circumference and side should not exceed 180o; the grinding speed should not be higher than the rated speed of the 125*1*22 EN12413 cutting disc during use. 3. When grinding or cutting, the force should not be too large, and the force should be applied evenly to prevent the cutting piece from being broken; the operator should wear a protective mirror. 4. When handling the cutting piece, care should be taken not to bump or bump into hard metal or other objects. The cutting piece should be away from grease, water or other solvents. Selection of the hardness of the cutting piece Hardness of the cutting piece is an important indicator to measure the "self-sharpness" of the cutting piece. During the grinding process, the abrasive grains gradually become sharp and blunt, and some of the passivated abrasive grains continue to work, and the pressure acting on the abrasive grains will continuously increase; when the pressure is large to a certain value, some abrasive grains will Self-crushing to form a new cutting edge; when the pressure exceeds the bonding force of the bonding agent, the abrasive particles will fall off by themselves. The property of the passivated abrasive particles to self-crush or fall off to keep the cutting piece sharp is called "self-sharpness". The hardness of the dicing sheet reflects the ease with which the abrasive particles fall off the surface of the dicing sheet under the action of the grinding force. If the cutting piece is hard, it means that the abrasive grain is hard to fall off; the cutting piece is soft, indicating that the abrasive grain is easy to fall off. The hardness of the cutting piece and the hardness of the abrasive grain are two different concepts that must be clearly distinguished. It is not that the hardness of the diamond cutting piece must be high. The abrasive of the ordinary abrasive grain brown fused alumina must be low. Cutting piece hardness grade. Expressed in English letters: A B C D E F G H I J K L M N P Q....... Soft and hard order is incremented by times. Common hardness is K-P. The cutting piece is selected too hard, the blunt abrasive grains are not easy to fall off, the flat cutting disc on sale is easy to block, the grinding heat is increased, the workpiece is easy to burn, the grinding efficiency is low, and the surface quality of the workpiece is affected; The cutting piece is selected to be too soft, and the abrasive grain is also peeled off when it is sharp, which increases the loss of the cutting piece, easily loses the correct geometric shape, and affects the accuracy of the workpiece. Therefore, the selection of the hardness of the cutting piece should be appropriate. It should also be considered according to the contact area of ​​the cutting piece and the workpiece, the shape of the workpiece, the way of grinding, the cooling method, the type of bonding agent of the cutting piece, etc.
add to favorites The bad performance of the sand making machine is not necessarily a problem with performance and quality   No  
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In the process of using the sand making machine, it often happens that the production effect of the equipment does not meet the customer's expectations. At this time, the first thing that comes to mind is that the quality of the machine is not good or the performance is problematic. In fact, this phenomenon may be due to operation. The problem, here we will analyze the importance of the correct operation of the sand making machine. In the production of sand making machines, low failure, good maintenance, high productivity, easy operation, and excellent finished product quality are important conditions for improving the comprehensive income of production engineering. Can these conditions meet the performance and quality of the selected and selected equipment? There is a relationship between the operation and the operation process. The so-called operation refers to the use of the sand making machine. In this process, the staff will affect the setting of various parameters of the equipment, the screening of the material input, and the lubrication of the equipment. Its performance is illustrated by the following examples. The effect of the operation on the sand making machine: When the sand making machine is used, if the parameter setting is unreasonable, such as the speed setting of the feeding, if it is too fast, it will easily cause the blockage phenomenon. If it is too slow, the device will be idling, whichever will cause efficiency. decline; When the sand making machine is used, the unreasonable maintenance will not only cause the internal parts to be worn out, but also cause the wear to be aggravated. For example, when the lubricating oil is added, it is polluted. When working, the parts will wear out; The operation of the sand making machine includes a lot of content, and any one of these contents has an unreasonable phenomenon, which will lead to poor performance of the equipment, which is why the sand making machine is strictly used according to the instructions. Therefore, when the sand making machine is used, it can't reach the customer's expectation value, not necessarily the equipment problem, it is probably the operation problem. Of course, this does not mean that the performance of the equipment is not important. When the sand making machine is purchased, Still pay attention to performance and quality, and then combine operations to ensure that it has good benefits.
add to favorites Metal cutting machine operation and maintenance l/mile No $
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When clamping the cutting piece, it is necessary to select a suitable and safe clamping method according to the material type. The low price disc for metal must be horizontally perpendicular to the cutting line of the tool, and must be fastened and secured. The long material must be fastened with a special bracket. When starting the cutting, it is necessary to observe whether the incision is skewed, and it is necessary to stop immediately when the deflection is found to prevent the cutter or the cutting piece from being twisted and broken. When working, the operator must stand on the side of the cutting direction of the cutter and the aluminum abrasive cutting disc to prevent the cutter, the cutting piece and the chip from colliding and injuring people, and must be away from the rotating part and the stroke range of the ram. The cutting blade cutting knife must be slowly and evenly speeded, and the force should be evenly applied. It is strictly forbidden to cut soft materials on the cutting blade cutting machine. When clamping large cutting blades, the crane should be operated correctly, the cutting piece should be hung firmly, the command should be clear, and the obstacles should be checked carefully on the worktable. The bottom of the cutting piece should not be supported by hand. Slow speed is used when falling, and it is not allowed to produce on the machine tool. Shock. Only after correct positioning and reliable fastening can the processing be carried out. After processing, it must be determined that there is no lifting obstacle before the cutting piece can be hung. When loading and unloading the cutting piece, it is necessary to stop and then load and unload the cutting disc for stainless steel. It is strictly forbidden to clean the chips by hand during processing, and special tools must be used. When there is too much accumulation of chips, it should be stopped and cleaned up in time. The cooling fluid flow rate of the cutting fluid should be adjusted properly, and the cooling part should be reasonable, and splashing is not allowed during processing. The metamorphic cutting fluid should be cleaned and collected in time, and sent to the unit to collect the spot. It is strictly forbidden to dump. When the machine tool malfunctions or has abnormal noise, it should be stopped and inspected and processed in time. When it is unable to process, report it to the maintenance personnel in time, and fill in the daily maintenance records of the equipment and record when the platform is stopped. All electrical faults are strictly prohibited from handling by the operator. At the end of processing or after work, the equipment should be cleaned according to the maintenance requirements of the equipment at the end of the shift, and the equipment should be thoroughly wiped. Maintenance content: Thoroughly clean the dirt; wipe the device thoroughly.
add to favorites Do not know how to make high precision and low roughness? l/mile No $
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Grinding principle The research content of the grinding principle mainly includes the grinding debris formation process, grinding force and grinding power, grinding heat and grinding temperature, grinding precision and surface quality, grinding efficiency, etc., in order to understand the essence of grinding, And to improve or create grinding methods. During the formation of the grinding debris, the spacing and height of the abrasive grains arranged on the grinding tool are randomly distributed. The abrasive particles are a polyhedron, and each of the corners can be regarded as a flat cutting disc on sale with a tip angle of approximately 90° to 120°. The tip is an arc of a radius of a few microns to a few tens of microns. Finely ground abrasives have tiny cutting edges on the surface of the abrasive particles called microedges. The abrasive grains have a large negative rake angle during grinding, and the average value is about -60°. The cutting process of the abrasive particles can be divided into three stages. Slip phase: The abrasive particles begin to squeeze into the workpiece, and the surface of the workpiece is elastically deformed without chips. Plough stage: the abrasive squeezing depth is increased, the workpiece is plastically deformed, the plough is grooved, the granules are bulged on both sides and the front end; the cutting stage: the plunging depth continues to increase, and the temperature reaches or exceeds the criticality of the workpiece material. At the temperature, part of the workpiece material slips significantly along the shear plane to form wear debris. Depending on the conditions, the three stages of the abrasive cutting process may exist in part or in part. The shape of the grinding chips is banded, squashed and fused. It can be used to analyze the influence of various main process parameters, 14 inches cutting disc characteristics, cooling lubrication conditions and abrasive properties on the grinding process. Measures for surface quality and grinding efficiency.
add to favorites The development speed of the sand making machine market   No  
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In the industrial market, the high requirements for sand and gravel aggregates in the construction field make the ultra-fine grinding equipment in the mining equipment sand washing machine equipment, anti-collector crusher, cone crusher, sand making machine and other stone production. Equipment demand is gradually increasing. The sand making machine has unique advantages in artificial sand making and stone shaping. ZENITH is a reputable manufacturer of mining equipment such as grinding machine for magnetic separators in the Central Plains. It has always been the core of the economic development of the domestic machinery industry, especially the stone washing equipment industry. The regulations and development proposals have also brought development momentum to the Central Plains economy. Since the new sand making machines were put on the market, they have developed rapidly in the construction field. The sand making effect is obvious, which not only makes up for the lack of natural sandstone market shortage, but also provides high quality sand and gravel aggregate for the construction field. The sand making machine is an economic basic industry, and its economic foundation has also developed rapidly. There are also good conditions for the construction of the Central Plains Economic Zone. ZENITH mining equipment is the leader in the domestic mining market. The experienced expert team and professional manufacturing personnel have created the most excellent new sand making machine, sand making production line and other mining equipment in the sand making machine market. It is the inevitable result of the new and old users. select. Ultra-fine grinding ultra-fine grinding machine centrifugal ultra-fine grinding machine strong pressure grinding machine
add to favorites What is the point of use of the 180*6*22mm metal grinding disc?   No  
Resin 180*6*22mm metal grinding disc is very common in today's applications. In the Neolithic era, people began to use natural grinding stones. Abrasives are widely used in the machinery industry and processing industry. Everyone knows what the use of the fast cheap metal grinding disc is. Chinese grinding disc manufacturers introduce the use of grinding discs. The main point of the 180*6*22mm metal grinding disc is the installation. The efficiency of the installation will be improved. However, if the installation is not good, it will have a certain impact on the use effect. The bridge is also a film. The trajectory cannot be straight when the 180*6*22mm metal grinding disc is running at high speed, and the direct result is after cutting. The material appears to be skewed, resulting in failure to meet processing requirements. The knowledge about the 180*6*22mm metal grinding disc is introduced here. If you want to know more, you can pay attention to Henan Aurora Abrasive Tool Co., Ltd., we specialize in the grinding wheel, the grinding disc, welcome new and old users to buy.
add to favorites Reason for failure of static balance of cutting piece l/mile No $
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A cutting piece is an inhomogeneous object. When the customized metal cutting disc rotates, the center of mass does not coincide with the center of rotation to cause vibration. This state is called the imbalance of the cutting piece. Unbalanced cutting blades can cause a lot of harm: • Acting on the grinding machine bearing to make the main shaft vibrate and accelerate the wear of the grinding machine spindle; • An additional increase in the rotational stress experienced by the cutting piece, reducing its rotational strength, and may even cause it to rupture upon rotation; • Increase the vibration of the cutting piece and the workpiece system, which is manifested by the occurrence of vibration marks on the surface of the workpiece being processed, and the machining accuracy and surface roughness are deteriorated; • Affect the uniformity of the sharpness of the cutting piece, making the cutting piece wear unevenly. The static balance of the China cutting disc for metal is also one of the main quality indicators reflecting the intrinsic characteristics and performance of the cutting piece. The static balance failure is classified as “heavy defect” in the standard, that is, “seriously reduce the product performance and have the performance of the machined part. Seriously affected defects." In the spot check, the static balance is not qualified as shown in Table 2. Among them, a fiber reinforced resin sheet cutting piece with a diameter of 400 mm and a linear velocity of 70 m/s, the standard static imbalance value is ≤13 g, but the actual measurement exceeds 18 g. The vibration of the cutting piece during use is conceivable.