Shandong Mine crusher counterattack board

In the crushing process in the crusher, as a key consumable parts prone to wear and tear hammer serious phenomenon, which reduces the efficiency and life of the plate hammer crusher. Below on the board hammer wear serious causes and treatment measures for detailed analysis and presentation. Cause: hammer wear is the primary failure mode of the crusher, the short life of the general board hammer, consumed in large quantities, you need to reserve a lot of spare parts in order to maintain normal production, high production costs. Hammer causes short life in general there are two: First, hammer material inappropriate choice. Hammer high manganese steel materials often used, the characteristics of high manganese steel is good toughness, high strength, technology is good, there is a certain hardness, in contact with a large impact or stress, high manganese steel surface layer will rapidly produce severe hardening, greatly improve the surface hardness and wear resistance. However, the actual use of the impact force or contact stress often enough, can not quickly produce surface hardening, wear resistance can not be fully realized. Second, the board hammer structure inappropriate choice. Many board hammer structure form, face a generous two narrow and thin, effective wear large generous; the first single and double work with single-sided and double-sided work work, only a single head wear surface, double with two wear surfaces, and there are four double-sided wear surface. Under the same material conditions effective to wear large, wear face more natural and long service life of the plate hammer. Measures: improving board hammer life, can start from the structure of both the scientific selection of materials and optimization hammer blow bar. In order to improve the life of plate hammer, hammer wear should choose some better materials, such as high chromium cast iron and carbon steel. High chromium cast iron is an excellent anti-wear properties of materials, wear high manganese steel is strong, the disadvantage is lower toughness. Prone to brittle fracture at the impact of big occasions, in order to improve strength and reduce the cost of board hammer, hammer in high manganese steel surfacing layer of high chromium cast iron to achieve the purpose wear. Carbon steel mainly containing chromium, molybdenum and other elements of the alloy structural steel, high hardness, good toughness, under the same operating conditions, the service life of high manganese steel hammer increased by at least 1 fold, but tempered heat treatment process is key. In terms of the structure of the selection board hammer, under the process conditions allow, select the generous working surface, double-sided work of the board hammer structure, it can greatly improve the life of the plate hammer. Shandong SEM Machinery Co., Ltd. accessories sales center Mine supply of various types crusher counterattack plate, welcome.