As a kind of stone crushing equipment, jaw crusher has heavy work and harsh working conditions. Even if the crusher is of high quality and advanced configuration, wear is inevitable. Among them, the jaw plate is the main easy to wear parts, which consumes a lot in the process of crushing, so the selection of the material of the jaw crusher is particularly important. Today, we will introduce in detail the common material types of the jaw crusher, so as to help us better understand the jaw crusher, and better purchase, operate and maintain the jaw crusher.
1.High manganese steel
High manganese steel is the traditional material of jaw crusher's jaw plate, which has good toughness and good deformation hardening ability. However, due to the unreasonable structure of jaw crusher at present, the opening angle between moving and fixed jaw plates is too large, which is easy to cause abrasive sliding, resulting in insufficient deformation hardening of high manganese steel, low surface hardness of jaw plate, large short range cutting amount of abrasive and rapid wear of jaw plate 。
2.Medium manganese steel
Due to the low initial hardness and low yield strength of high manganese steel, under the condition of non strong impact, its work hardening is not sufficient, and it is easy to flow and be cut. Therefore, in order to improve the service life of jaw crusher jaw plate, technicians further developed and used medium manganese steel.
3.Composite of high chromium cast iron and high manganese steel
Although high chromium cast iron is an excellent wear-resistant material, because of its poor toughness, it will be directly cracked or deformed or peeled when impacted or extruded by materials. Therefore, it is not a good choice to make jaw plate with high chromium cast iron. In recent years, high chromium cast iron has been cast in or bonded to the jaw plate of high manganese steel to form a composite jaw plate. The high wear resistance of high chromium cast iron and the high toughness of high manganese steel are brought into full play, and the service life of the jaw plate is significantly improved.
4.Low alloy cast steel
Medium carbon low alloy cast steel is a kind of wear-resistant material which is widely used at present. Because of its high hardness and appropriate toughness, it can resist the cutting action of materials and fatigue spalling caused by repeated extrusion, so it shows good wear resistance. At the same time, the hardness and toughness of medium carbon low alloy cast steel can be changed in a large range by adjusting the composition and heat treatment process, so as to meet the requirements of different working conditions.
The above four kinds of materials are commonly used for jaw crusher jaw plate. Through analysis and comparison, it is not difficult to see that low alloy cast steel is used to make jaw plate of jaw crusher with higher yield, wear resistance and longer service life. Therefore, users should not pay too much attention to the price of equipment when purchasing jaw crusher, and pay attention to the material selection, material, configuration, performance and other factors of the equipment Seeking low price in quality.
As a supplier with nearly 30 years' manufacturing, Shuguang Heavy Machinery also produces and sells hammer crushers, impact crushers, vertical shaft crushers, cone crushers, compound crushers, Raymond mills, high pressure mills. Powder machine, vertical mill, ultra-fine grinding machine, ball mill, double-shaft shredder and other heavy equipment crusher. Feel free to contact us for more details.
Factory Address: Longjiang West Road, Shangjie District, Zhengzhou City
Contact number: +86-371-67666660 676667
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