Generally speaking, the production environment of jaw crusher is relatively harsh. In addition, as the first process of crushing materials, the responsibility of jaw crusher is also very important. The reason why the jaw crusher can survive for a long time without being eliminated is mainly due to its powerful performance advantages. The crushing cavity of the jaw crusher is deep and there is no dead zone, which greatly improves the feeding capacity and output problems. , compared with the current new crusher equipment, it has always been as good as its large crushing ratio, relatively uniform particle size of the finished product, large adjustment range of the discharge port, which can meet the requirements of different users, low noise, less dust, safe and reliable lubrication system, and safe and reliable components. It is easy to replace and requires less maintenance work. At the same time, the hydraulic device used in the jaw crusher is safe and wear-resistant. The service life of the jaw plate of ordinary material in the jaw crusher of the jaw crusher manufacturer is naturally not as long as that of good material. When the jaw plate of ordinary material is used to crush stones with higher hardness, generally speaking, the service life of the jaw plate is four times. The jaw plate needs to be replaced every five days. Common materials for the jaw plate include high manganese steel, medium manganese steel, high chromium cast iron and high manganese steel composite, and low alloy cast steel. Let’s talk about high manganese steel first. High manganese steel is the earliest traditional material for jaw plates. It has good toughness and deformation hardening ability.
However, if the design structure of the jaw crusher is not reasonable enough, it will easily cause abrasive sliding and insufficient deformation hardening of high-manganese steel, which will lead to faster wear of the jaw plate. Medium manganese steel, under non-strong impact conditions, will Insufficient work hardening is prone to rheology and cutting of high chromium cast iron and high manganese steel. Although the material is relatively good, its toughness is extremely poor. Once it is impacted and extruded by the material, it will directly break or deform.
In recent years, high chromium cast iron has been inlaid or bonded to high manganese steel jaw plates to form composite jaw plates, which give full play to the high wear resistance of high chromium cast iron and the high toughness of high manganese steel. The service life of the jaw plate is significantly improved.
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