This paper expounds the modification and application in production of t he flat hammer and hammerhead, the key parts of the breaker, and points out that the modified high-manganese steel flat hammer and hammerhead can guarantee the safe operation of the breaker effectively, reduce the working intensity, and in crease the economic benefit.

By optimizing material composition, designing reasonable casting technique and combining with heat treatment, a new production process, which can greatly improve the wear resistance and comprehensive mechanical properties of the high manganese steel ring-hammer, has been researched and developed.

Superficial view of machining features of ZGMn13 high-manganese steel;

This paper presents related technical matters about high-manganese steel frogs'deposit welding,in- cluding the characteristics of various deposit welding techniques,mechanical properties,weldability and defects of high-manganese steel frogs,deposit welding technology,the choice of welding machines and welding rods and its application in production.

The high chrome cast-iron added a variety of drib and microscale elements was used to make the flat hammer in overpressure turbine crusher,which can improve the wearing resistance and synthesize mechanical property of the products greatly,and the life of the products is 4 times longer than the former high-manganese steel.