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Innovation heat treatment technology for large roller of rotary kiln and cylinder mix

 

Rotary kiln is the main machine in cement production, commonly known as the “heart” of cement factory, and large roller is the key part of rotary kiln and cylinder mixer of cement production equipment.Only roller surface quenching and form high hardness, but not enough to meet the performance requirements, and other conditioning treatment can not only refine the grain size, and can improve the mechanical parts matrix strength, improve the shock resistance and fatigue resistance, so the surface with high hardness and substrate should have a certain strength and toughness.The material of the big idler of a product is 40C r, the outline size is 1400/ 484m m 900m m, the weight is 11412k g, the technical requirement is tempering and tempering, the hardness is 228 ~ 269H B W, the mechanical performance requirement is 635MPa, 440mpa, 35%, 5 10%, AKU 23J.

2019-05-24T08:54:54+08:00

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