No abstract

The article shows the influence of fibrous structure and non-metallic inclusions on the mechanical properties of steel products. The macrostructure of forging the crankshaft was investigated and the places of exit of the elimination zones to the surface of the car part were established. Based on this, there are proposed ways to improve the quality of deformable steel products in the machine building industry.

It is established that the admissible size of wear on the restored cemented (nitrocemented) details depends on specifications on operation of the car. An indispensable condition at the same time is preservation in a blanket (a worn-out detail) of carbon not less than 0,4%. It is offered for high-speed heating of worn-out parts of details under plastic deformation to use induction installation and the offered method of restoration of pushers of valves I have shown that details meet specifications of manufacturer.

No abstract