Elasticity modulus of wheat bulks was measured by triaxial apparatus,and three key experimental factors were determined by analyzing the data of pre-experiments,such as number of hysteresis loop,time interval of loading and unloading,vertical pressure.

According to the character of medium-frequency quenching for revolving seat ring race in military gun turret,the quenching process parameter of decreasing the seat ring reformation and its process method,which can provide the technological guarantee to the production of gun turret seat ring,have been obtained through studying on the quenching process for race and the formation of seat ring.

For this reason,the dust-proof measures of gyration gear ring ware adopted,and the lubricant method of gyration bearing was improved.