TO THE QUESTION OF THE APPLICATION OF METHODS OF PHYSICAL-CHEMICAL MODIFICATION OF THE CUTTING EDGES OF EMERGENCY RESCUE TOOL
In given article speech about problems of deterioration of the cutting edges of emergency rescue tool, applied in divisions of the Ministry of Emergency Measures of Russia will go. Tool service life is defined by indicators of non-failure operation of the mechanism which are one of critical links of a tree of refusals. Restoration of working capacity of the tool demands the big material inputs. Kinds and causes of deterioration of cutting edges of the tool are considered. The most perspective methods of physical and chemical modifying of the surface layer of details, which can be applied to increase of wear resistance and hardness of cutting edges of emergency rescue tool are analyzed. In article the design of experimental installation which allows to model process of cutting of armature by the replaceable edges, subjected to various kinds of hardening of a working surface is presented.