What material hammer wear hammer What material is the most wear-resistant, what alloy hammer wear? Gongyi Dongchen Industry reports crusher hammer alloy material which? Which type of alloy hammer wear and durable! To solve this kind of problem, Dongchen Casting tells you from the introduction of durable hammer material and how to find a wear-resistant hammer manufacturer. This article describes the crusher hammer alloy material, casting method, and hammer improvement to help you find more resistance. Grinding crusher hammer to improve production efficiency.
Hammer mill hammer what wear? Which crusher hammer is durable? Where is the crusher hammer easy to use? In response to this type of problem, Gongyi Dongchen Foundry tells you from the introduction of durable hammer material and how to find a wear-resistant hammer manufacturer. This article describes the wear resistance of the hammer, the method of casting, and the improvement of the hammerhead to help you Find a more wear-resistant grinder hammer to increase productivity.
The emergence of alloy hammers has solved the problem of rapid wear of the hammer head to a certain extent. However, the hammerhead is still a consumable product. Therefore, while we are looking for wear-resistant crusher hammers, we should also pay attention to finding a production and after-sale formal. The crusher's hammer head manufacturer can ensure that the content of the hammer head alloy is accurate, the hammer head production heat treatment is perfected, and the after-sales problem during the use process is ensured, so that the wear-resistant hammer can be used longer and more durable. Gongyi Dongchen Industrial Co., Ltd. is a high-quality manufacturer of high wear-resistance hammers for casting, to solve your stone crushing problems!
Henan brand wear-resistant alloy hammer manufacturers direct sales consulting products request for a quote please contact Manager Gong, telephone, specializing in the production of bi-metallic wear-resistant hammer, plans to sample custom sand machine wear hammer, liner and manufacturing broken system Sand Machinery, we are ready to provide you with technical assistance, you are welcome to visit the factory site.
Commonly used crusher hammer material Currently hammer crusher hammer material has many kinds, such as casting high manganese steel series, casting alloy steel series and cast high chromium cast iron series. The actual production shows that the hammerheads made of various materials have a great difference in performance. Therefore, the hammerhead materials should be reasonably selected according to the use conditions of the hammerhead.
When the hammer mill is working, the abrasive enters the crusher cavity from the lower hopper, and the material breaks the material through the collision of the high-speed rotating hammerhead; or throws the material to the counterplate of the inner wall of the cylinder through the highly rotating tray, and then collides and returns. Hammered area, hammered by hammer and broken material.
What is the wear resistance of the hammer of the crusher? The reason that affects the service life of the hammer head of the crusher, in which the material of the hammer head is an important influencing factor.
At present, it is recognized that the material of the wear-resistant hammer is high-chromium cast iron, and the high-chromium alloy hammer has high hardness and is a high-quality wear-resistant material, which has been widely used in hammer crushers. The hardness of high-chromium cast iron after heat treatment can reach more than 58HRC, the matrix is ​​high hardness martensite, and the organization contains a large number of high hardness carbide M7C3, which is considered to be the ideal wear-resistant material for the hammer of the crusher. The structure and properties of the wear-resistant hammer mainly depend on the contents of chromium, carbon and manganese. Since the affinity of carbon and chromium is greater than the affinity of iron and carbon, a series of stable ferrochrome compounds are formed.
Compared to high manganese steel hammers, high chromium hammers have high hardness and good wear resistance and have been widely used. Because the content of chromium and carbon in the hammerhead is relatively high, chromium is a grain boundary network carbide forming element, resulting in a continuous distribution of a large number of eutectic carbides in the grain boundary, and the matrix is ​​again a martensite substructure, This structure of continuous brittle network carbides distributed on grain boundaries of the brittle-hard matrix results in insufficient toughness of the hammer head, affecting its application range.
How to improve the toughness of high-chromium crusher hammer has become an important issue for crusher hammer manufacturers. As a wear-resistant material, high hardness must be required. However, in the wear process, only the hardness of the material is neglected, and the toughness of the material is neglected. This will inevitably lead to the stripping effect of the hammer during use, and even premature fracture.
The poor impact toughness of high chromium cast iron causes the hammer to break easily. Gongyi Dongchen Industrial Casting Co., Ltd. made the high-chromium cast iron into the head of the composite hammerhead, and added the alloy. The hammer shank adopts cast steel manganese steel with good impact toughness. The material, Dongchen patented product double liquid bimetal composite hammerhead has the advantages of high hardness and high wear resistance of high-chromium cast iron. It also compensates for the shortcomings of the integral high-chromium cast iron hammerhead that is easy to break at the position of the hammer handle, and can save Ni, Mo and other precious metal elements reduce production costs.
Dongchen Industrial "super wear-resistant dual-alloy hammer" has been continuously upgraded since its introduction in 2007. It has now become one of the representatives of wear-resistant hammers in China. It is characterized by stability, wear resistance, high efficiency, and safety. Hammerhead hardness and toughness of the contradiction, is now widely used in small and large stone factories throughout the country, cement plants, limestone crushing, power plants and other industries, users praise!
Gongyi Dongchen Industry Co., Ltd. is a manufacturer specializing in crusher hammers. It has 30 years of experience in the production of hammerheads and crusher parts. It has rich practical experience in extending the service life of hammers on crushers, such as improving the alloying ratio for the crusher hammer conditions. , The structural shape of the crusher hammer is modified, or the hammer life of the crusher is improved by using the new compound crusher hammer process. The long-lasting hammer-type hammer uses the Dongchen brand bimetal composite hammer, and the hammer head adopts high chromium. The alloy material and the hammer handle are made of low-alloy steel with good toughness. The use of thermal compounding melts the two materials with different properties and effects in the liquid-liquid state. It integrates toughness and high wear resistance, making the product Both wear-resistant and not broken, this is a new crusher hammer from Gongyi Dongchen. Avoid the intrusion of the inlaid alloy and the double composite bag hammer, block loss, U-turn and so on.
Gongyi Dongchen Industry reminded to pay attention to the speed of the hammer to extend the service life of the hammer on the crusher is also related to the technical parameters of the crusher, the main one is the power and speed of the rotor body. These two parameters directly reflect the line speed and impact force of the hammer of the crusher. They are not only related to the production capacity of the crusher, but also to the degree of impact hardening of the hammer. Hammerheads with good impact hardening will have a longer service life. Rotor speed is too low, not only low production capacity, and low kinetic energy, resulting in poor hammer impact hardening, poor wear resistance; rotor speed is too high, although the hammer can get better impact hardening, equipment productivity increased. At the same time, however, the hammers, purlins and linings are also subject to strong wear, which is detrimental to the service life of the hammers, and at the same time significantly increases the power consumption. Therefore, a reasonable rotation speed should be determined to increase the impact hardening degree in the early stage of hammer work and reduce the wear of the hammer head.
Gongyi Dongchen Industrial Co., Ltd. reminded the crusher feeding conditions to extend the service life of the hammer on the crusher. Gongyi Dongchen Industrial Co., Ltd. reminded to pay attention to the crusher feeding conditions. The feeding conditions include: feeding material size and hardness, hammer crusher feeding method . The former relates to whether the crusher will have the impact impulse when the material is accumulated and the hammer hits the material. The latter results in different material-to-rotor gaps due to different feeding methods, and also affects the impact impulse when the hammer strikes the material. When the hammer weight and rotor speed are fixed, the impact impulse of the hammer is proportional to the material quality and the drop, and the magnitude of the impact impulse is directly related to the degree of hammer hardening and wear resistance. Therefore, the particle size of the large-scale hammer crusher should not be too small, and the speed of the feeding equipment should be higher. In addition, excessive moisture content of the material will also have a certain impact on the life of the hammerhead. The moisture content is too high, the material is easily bonded into a mass, causing material accumulation and intensifying the wear of the hammerhead.
High Manganese Steel Wear Resistant Hammer Material High Manganese Steel Hammer has high toughness, easy work hardening characteristics, and parts that work under high stress and strong impact wear conditions have been using high manganese steel for material selection, and limited impact force ( In the case of medium and low stress, the working surface of high manganese steel cannot be hardened and the wear resistance is poor. Therefore, before use, it should be based on the actual parameters of equipment selection, listening to professional hammer manufacturers recommended to make it play a large economic benefit.
Casting high-manganese steel is a relatively common cast high alloy material for the manufacture of crusher hammers. Commonly used cast high manganese steels include ordinary high manganese steels such as ZGMn13; alloyed high manganese steels such as ZGMn13Cr2Mo; microalloyed and alloyed High manganese steel such as ZG-Mn13Cr2MoVTi; medium manganese steel such as ZGMn8; ultrahigh manganese steel such as ZGMn18Cr2Mo. The as-cast microstructure of common high-manganese steels is austenite and carbides. Because of the presence of carbides, the toughness is poor. The water tough heat treatment is required. After the water toughening treatment, the single-phase austenite structure has a high impact toughness. The initial hardness of the material is low and its yield strength is low.
Microalloying and alloying of high-manganese steels is based on common high-manganese steels. Through microalloying and alloying, the matrix is ​​strengthened and the microstructure is refined. While increasing the initial hardness and yield strength of high-manganese steels, it is still possible. Maintain high toughness; medium-manganese steel reduces the amount of manganese carbon in high-manganese steel, reduces the amount of solid solution of alloying elements in austenite during water toughening treatment, and reduces the stability of austenite microstructure. Under stress conditions, work hardening is easy, surface hardness is improved and wear resistance is improved; single-phase austenite structure after high-manganese steel toughness treatment has strong work hardening ability under strong impact stress and can be greatly improved. Improve the surface hardness of the hammer to improve wear resistance. As the hammer material, the greater the impact force of the hammer head is, the more significant the reinforcing effect is, and the more excellent abrasion resistance is exhibited. The results of mining tests on high-manganese steel wear-resistant materials show that the hardness of the water-toughness treated high-manganese steel is 220HBW. The use of the steel under high strain or stress conditions can increase the surface hardness to about 550 HBW after work hardening. Good wear resistance.
However, high manganese steel hammers have poor work hardening effects and low wear resistance under non-strong impact conditions. They cannot fully exploit the performance potential of high-manganese steel materials. Therefore, the stability of austenite microstructure in ultra-high manganese steels is even greater. High, generally used in relatively strong stress or strain conditions, wear parts can show better work hardening effect and higher wear resistance.
Casting alloy steel crusher hammer material When the working conditions of the crusher belong to non-strong impact, the advantages of high manganese steel can not be fully realized, in order to overcome the disadvantages of low initial hardness, poor work hardening effect and poor wear resistance of high manganese steel, Alloy steel casting hammers can be used. The wear-resistant cast steel generally used for hammerheads is medium, high carbon, low alloy steel and high alloy steel. Chromium, nickel, molybdenum, etc. are the main alloying elements, and adding these alloying elements can greatly improve the hardenability of the material. Casting hammers can improve strength and toughness through heat treatment. Generally in the heat treatment under air cooling or quenching conditions can be obtained martensite, bainite or martensite - bainite and other composite structures, with the tempering process to obtain better toughness. Casting alloy steel hammer production process is simple, the initial hardness is high, the general hardness after heat treatment ≥ 46HRC, at the same time have a certain degree of toughness, can meet the use requirements of the hammer material. The general alloy steel hammer is mainly used in working conditions with small particle size and moderate stress, and can obtain good use effect.
Crusher hammer can be used for casting - dual alloy liquid-liquid composite - solid-liquid composite casting method Liquid-liquid composite method is to obtain the hammer head through integral casting. During the casting, the two melting furnaces must work simultaneously to simultaneously smelt two kinds of metal materials. The hammer handle part can be cast steel or alloy steel such as ZG270-500 or ZG310-570. The molten steel composition meets the requirements. After the deoxidation is good, the molten steel can be poured first. After a certain period of time, the molten iron of high-chromium cast iron is poured and filled with the head. Ministry and its Riser section. In order to obtain a good casting, the liquid-liquid compounding method must strictly control the pouring temperature and the waiting time for pouring the molten iron after pouring the molten steel. That is, after the casting of the hammer shank, when the surface layer of molten steel to be poured has a solidified layer of a certain thickness The molten iron is poured again to ensure that the poured molten steel is not mixed, so that the joint surface between the steel and the molten iron is good. It is noteworthy that high-chromium cast iron and steel casting generally should first cast some of the hammer handle molten steel, if you first cast molten iron, the general steel and molten iron is more difficult to obtain a good composite surface, in the combination of the two materials can easily produce Slag, pores and other defects.
Cast carbide or high chromium cast iron bars to increase the life of the hammer. The specific method is to form a cemented carbide or high-chromium cast iron bar at the hammer head portion of the cavity, and then cast the high manganese steel molten steel to realize solid-liquid compounding. Casting a high hardness alloy into the head of a high manganese steel hammer head can effectively increase the wear resistance and service life of the hammer head.
Hammer mill is a commonly used crushing equipment. The hammer head is the main wear part. The wear resistance of the hammer head directly affects the production efficiency of the crusher. At present, most of the domestic hammer crusher hammers are made of high manganese steel. As the wear resistance of high-manganese steel is not enough, wear resistance is poor, and its service life is short, it needs to be replaced frequently, and the service life is less than half a year. Replacement of high-chromium cast iron composite hammers is imminent. The use of Gongyi Dongchen Industrial's patented product “Super Wear Resistant Dual Alloy Hammerhead†is an ideal choice. The main feature of this alloy wear resistant hammer is The use of high-chromium alloy steel in the working part, the use of low-alloy manganese steel in the hammer shank, the use of "two-fluid composite" metallurgical combination of the two, thereby greatly improving the wear resistance of the hammer head, Dongchen double-liquid alloy hammer is a Casting, will not fall off, wear-resistant and efficient! The service life of the Dongchen alloy hammer can be increased by 3-5 times over the original product, and the crushing efficiency can be increased by more than 30%. The hammerhead is widely used in cement plant limestone crushing, clinker crushing, brick shale crushing, coal gangue crushing, coke Broken, mine ore a variety of crushing industry!
What crusher hammer wear? Gongyi Dongchen Industrial Co., Ltd. reminds you that using chromium-molybdenum alloy composite hammer wear-resistant, Gongyi Dongchen - is committed to custom-made for you "for your wear-resistant alloy hammer"!
Hammer mill hammer what wear? Which crusher hammer is durable? Where is the crusher hammer easy to use? In response to this type of problem, Gongyi Dongchen Foundry tells you from the introduction of durable hammer material and how to find a wear-resistant hammer manufacturer. This article describes the wear resistance of the hammer, the method of casting, and the improvement of the hammerhead to help you Find a more wear-resistant grinder hammer to increase productivity.
The emergence of alloy hammers has solved the problem of rapid wear of the hammer head to a certain extent. However, the hammerhead is still a consumable product. Therefore, while we are looking for wear-resistant crusher hammers, we should also pay attention to finding a production and after-sale formal. The crusher's hammer head manufacturer can ensure that the content of the hammer head alloy is accurate, the hammer head production heat treatment is perfected, and the after-sales problem during the use process is ensured, so that the wear-resistant hammer can be used longer and more durable. Gongyi Dongchen Industrial Co., Ltd. is a high-quality manufacturer of high wear-resistance hammers for casting, to solve your stone crushing problems!
Henan brand wear-resistant alloy hammer manufacturers direct sales consulting products request for a quote please contact Manager Gong, telephone, specializing in the production of bi-metallic wear-resistant hammer, plans to sample custom sand machine wear hammer, liner and manufacturing broken system Sand Machinery, we are ready to provide you with technical assistance, you are welcome to visit the factory site.
Commonly used crusher hammer material Currently hammer crusher hammer material has many kinds, such as casting high manganese steel series, casting alloy steel series and cast high chromium cast iron series. The actual production shows that the hammerheads made of various materials have a great difference in performance. Therefore, the hammerhead materials should be reasonably selected according to the use conditions of the hammerhead.
When the hammer mill is working, the abrasive enters the crusher cavity from the lower hopper, and the material breaks the material through the collision of the high-speed rotating hammerhead; or throws the material to the counterplate of the inner wall of the cylinder through the highly rotating tray, and then collides and returns. Hammered area, hammered by hammer and broken material.
What is the wear resistance of the hammer of the crusher? The reason that affects the service life of the hammer head of the crusher, in which the material of the hammer head is an important influencing factor.
At present, it is recognized that the material of the wear-resistant hammer is high-chromium cast iron, and the high-chromium alloy hammer has high hardness and is a high-quality wear-resistant material, which has been widely used in hammer crushers. The hardness of high-chromium cast iron after heat treatment can reach more than 58HRC, the matrix is ​​high hardness martensite, and the organization contains a large number of high hardness carbide M7C3, which is considered to be the ideal wear-resistant material for the hammer of the crusher. The structure and properties of the wear-resistant hammer mainly depend on the contents of chromium, carbon and manganese. Since the affinity of carbon and chromium is greater than the affinity of iron and carbon, a series of stable ferrochrome compounds are formed.
Compared to high manganese steel hammers, high chromium hammers have high hardness and good wear resistance and have been widely used. Because the content of chromium and carbon in the hammerhead is relatively high, chromium is a grain boundary network carbide forming element, resulting in a continuous distribution of a large number of eutectic carbides in the grain boundary, and the matrix is ​​again a martensite substructure, This structure of continuous brittle network carbides distributed on grain boundaries of the brittle-hard matrix results in insufficient toughness of the hammer head, affecting its application range.
How to improve the toughness of high-chromium crusher hammer has become an important issue for crusher hammer manufacturers. As a wear-resistant material, high hardness must be required. However, in the wear process, only the hardness of the material is neglected, and the toughness of the material is neglected. This will inevitably lead to the stripping effect of the hammer during use, and even premature fracture.
The poor impact toughness of high chromium cast iron causes the hammer to break easily. Gongyi Dongchen Industrial Casting Co., Ltd. made the high-chromium cast iron into the head of the composite hammerhead, and added the alloy. The hammer shank adopts cast steel manganese steel with good impact toughness. The material, Dongchen patented product double liquid bimetal composite hammerhead has the advantages of high hardness and high wear resistance of high-chromium cast iron. It also compensates for the shortcomings of the integral high-chromium cast iron hammerhead that is easy to break at the position of the hammer handle, and can save Ni, Mo and other precious metal elements reduce production costs.
Dongchen Industrial "super wear-resistant dual-alloy hammer" has been continuously upgraded since its introduction in 2007. It has now become one of the representatives of wear-resistant hammers in China. It is characterized by stability, wear resistance, high efficiency, and safety. Hammerhead hardness and toughness of the contradiction, is now widely used in small and large stone factories throughout the country, cement plants, limestone crushing, power plants and other industries, users praise!
Gongyi Dongchen Industry Co., Ltd. is a manufacturer specializing in crusher hammers. It has 30 years of experience in the production of hammerheads and crusher parts. It has rich practical experience in extending the service life of hammers on crushers, such as improving the alloying ratio for the crusher hammer conditions. , The structural shape of the crusher hammer is modified, or the hammer life of the crusher is improved by using the new compound crusher hammer process. The long-lasting hammer-type hammer uses the Dongchen brand bimetal composite hammer, and the hammer head adopts high chromium. The alloy material and the hammer handle are made of low-alloy steel with good toughness. The use of thermal compounding melts the two materials with different properties and effects in the liquid-liquid state. It integrates toughness and high wear resistance, making the product Both wear-resistant and not broken, this is a new crusher hammer from Gongyi Dongchen. Avoid the intrusion of the inlaid alloy and the double composite bag hammer, block loss, U-turn and so on.
Gongyi Dongchen Industry reminded to pay attention to the speed of the hammer to extend the service life of the hammer on the crusher is also related to the technical parameters of the crusher, the main one is the power and speed of the rotor body. These two parameters directly reflect the line speed and impact force of the hammer of the crusher. They are not only related to the production capacity of the crusher, but also to the degree of impact hardening of the hammer. Hammerheads with good impact hardening will have a longer service life. Rotor speed is too low, not only low production capacity, and low kinetic energy, resulting in poor hammer impact hardening, poor wear resistance; rotor speed is too high, although the hammer can get better impact hardening, equipment productivity increased. At the same time, however, the hammers, purlins and linings are also subject to strong wear, which is detrimental to the service life of the hammers, and at the same time significantly increases the power consumption. Therefore, a reasonable rotation speed should be determined to increase the impact hardening degree in the early stage of hammer work and reduce the wear of the hammer head.
Gongyi Dongchen Industrial Co., Ltd. reminded the crusher feeding conditions to extend the service life of the hammer on the crusher. Gongyi Dongchen Industrial Co., Ltd. reminded to pay attention to the crusher feeding conditions. The feeding conditions include: feeding material size and hardness, hammer crusher feeding method . The former relates to whether the crusher will have the impact impulse when the material is accumulated and the hammer hits the material. The latter results in different material-to-rotor gaps due to different feeding methods, and also affects the impact impulse when the hammer strikes the material. When the hammer weight and rotor speed are fixed, the impact impulse of the hammer is proportional to the material quality and the drop, and the magnitude of the impact impulse is directly related to the degree of hammer hardening and wear resistance. Therefore, the particle size of the large-scale hammer crusher should not be too small, and the speed of the feeding equipment should be higher. In addition, excessive moisture content of the material will also have a certain impact on the life of the hammerhead. The moisture content is too high, the material is easily bonded into a mass, causing material accumulation and intensifying the wear of the hammerhead.
High Manganese Steel Wear Resistant Hammer Material High Manganese Steel Hammer has high toughness, easy work hardening characteristics, and parts that work under high stress and strong impact wear conditions have been using high manganese steel for material selection, and limited impact force ( In the case of medium and low stress, the working surface of high manganese steel cannot be hardened and the wear resistance is poor. Therefore, before use, it should be based on the actual parameters of equipment selection, listening to professional hammer manufacturers recommended to make it play a large economic benefit.
Casting high-manganese steel is a relatively common cast high alloy material for the manufacture of crusher hammers. Commonly used cast high manganese steels include ordinary high manganese steels such as ZGMn13; alloyed high manganese steels such as ZGMn13Cr2Mo; microalloyed and alloyed High manganese steel such as ZG-Mn13Cr2MoVTi; medium manganese steel such as ZGMn8; ultrahigh manganese steel such as ZGMn18Cr2Mo. The as-cast microstructure of common high-manganese steels is austenite and carbides. Because of the presence of carbides, the toughness is poor. The water tough heat treatment is required. After the water toughening treatment, the single-phase austenite structure has a high impact toughness. The initial hardness of the material is low and its yield strength is low.
Microalloying and alloying of high-manganese steels is based on common high-manganese steels. Through microalloying and alloying, the matrix is ​​strengthened and the microstructure is refined. While increasing the initial hardness and yield strength of high-manganese steels, it is still possible. Maintain high toughness; medium-manganese steel reduces the amount of manganese carbon in high-manganese steel, reduces the amount of solid solution of alloying elements in austenite during water toughening treatment, and reduces the stability of austenite microstructure. Under stress conditions, work hardening is easy, surface hardness is improved and wear resistance is improved; single-phase austenite structure after high-manganese steel toughness treatment has strong work hardening ability under strong impact stress and can be greatly improved. Improve the surface hardness of the hammer to improve wear resistance. As the hammer material, the greater the impact force of the hammer head is, the more significant the reinforcing effect is, and the more excellent abrasion resistance is exhibited. The results of mining tests on high-manganese steel wear-resistant materials show that the hardness of the water-toughness treated high-manganese steel is 220HBW. The use of the steel under high strain or stress conditions can increase the surface hardness to about 550 HBW after work hardening. Good wear resistance.
However, high manganese steel hammers have poor work hardening effects and low wear resistance under non-strong impact conditions. They cannot fully exploit the performance potential of high-manganese steel materials. Therefore, the stability of austenite microstructure in ultra-high manganese steels is even greater. High, generally used in relatively strong stress or strain conditions, wear parts can show better work hardening effect and higher wear resistance.
Casting alloy steel crusher hammer material When the working conditions of the crusher belong to non-strong impact, the advantages of high manganese steel can not be fully realized, in order to overcome the disadvantages of low initial hardness, poor work hardening effect and poor wear resistance of high manganese steel, Alloy steel casting hammers can be used. The wear-resistant cast steel generally used for hammerheads is medium, high carbon, low alloy steel and high alloy steel. Chromium, nickel, molybdenum, etc. are the main alloying elements, and adding these alloying elements can greatly improve the hardenability of the material. Casting hammers can improve strength and toughness through heat treatment. Generally in the heat treatment under air cooling or quenching conditions can be obtained martensite, bainite or martensite - bainite and other composite structures, with the tempering process to obtain better toughness. Casting alloy steel hammer production process is simple, the initial hardness is high, the general hardness after heat treatment ≥ 46HRC, at the same time have a certain degree of toughness, can meet the use requirements of the hammer material. The general alloy steel hammer is mainly used in working conditions with small particle size and moderate stress, and can obtain good use effect.
Crusher hammer can be used for casting - dual alloy liquid-liquid composite - solid-liquid composite casting method Liquid-liquid composite method is to obtain the hammer head through integral casting. During the casting, the two melting furnaces must work simultaneously to simultaneously smelt two kinds of metal materials. The hammer handle part can be cast steel or alloy steel such as ZG270-500 or ZG310-570. The molten steel composition meets the requirements. After the deoxidation is good, the molten steel can be poured first. After a certain period of time, the molten iron of high-chromium cast iron is poured and filled with the head. Ministry and its Riser section. In order to obtain a good casting, the liquid-liquid compounding method must strictly control the pouring temperature and the waiting time for pouring the molten iron after pouring the molten steel. That is, after the casting of the hammer shank, when the surface layer of molten steel to be poured has a solidified layer of a certain thickness The molten iron is poured again to ensure that the poured molten steel is not mixed, so that the joint surface between the steel and the molten iron is good. It is noteworthy that high-chromium cast iron and steel casting generally should first cast some of the hammer handle molten steel, if you first cast molten iron, the general steel and molten iron is more difficult to obtain a good composite surface, in the combination of the two materials can easily produce Slag, pores and other defects.
Cast carbide or high chromium cast iron bars to increase the life of the hammer. The specific method is to form a cemented carbide or high-chromium cast iron bar at the hammer head portion of the cavity, and then cast the high manganese steel molten steel to realize solid-liquid compounding. Casting a high hardness alloy into the head of a high manganese steel hammer head can effectively increase the wear resistance and service life of the hammer head.
Hammer mill is a commonly used crushing equipment. The hammer head is the main wear part. The wear resistance of the hammer head directly affects the production efficiency of the crusher. At present, most of the domestic hammer crusher hammers are made of high manganese steel. As the wear resistance of high-manganese steel is not enough, wear resistance is poor, and its service life is short, it needs to be replaced frequently, and the service life is less than half a year. Replacement of high-chromium cast iron composite hammers is imminent. The use of Gongyi Dongchen Industrial's patented product “Super Wear Resistant Dual Alloy Hammerhead†is an ideal choice. The main feature of this alloy wear resistant hammer is The use of high-chromium alloy steel in the working part, the use of low-alloy manganese steel in the hammer shank, the use of "two-fluid composite" metallurgical combination of the two, thereby greatly improving the wear resistance of the hammer head, Dongchen double-liquid alloy hammer is a Casting, will not fall off, wear-resistant and efficient! The service life of the Dongchen alloy hammer can be increased by 3-5 times over the original product, and the crushing efficiency can be increased by more than 30%. The hammerhead is widely used in cement plant limestone crushing, clinker crushing, brick shale crushing, coal gangue crushing, coke Broken, mine ore a variety of crushing industry!
What crusher hammer wear? Gongyi Dongchen Industrial Co., Ltd. reminds you that using chromium-molybdenum alloy composite hammer wear-resistant, Gongyi Dongchen - is committed to custom-made for you "for your wear-resistant alloy hammer"!
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