RESTORATION OF KNIVES OF COMPOSITE PLOUGHSHARES
 (ON THE EXAMPLE OF THE COMPANY «LEMKEN»)

Abstract

The orientation of Russian agriculture to the use of imported machinery has led to negative consequences. The introduction of sanctions by European states led to an increase in the market price of replaceable parts and an increase in scarcity. The way out of this situation is to organize workshops for the restoration of worn parts. (Research purpose) The research purpose is developing and describing in detail (with explanatory illustrative materials) the technological process of restoring knives of composite ploughshares. (Materials and methods) We have determined that it is necessary to ensure minimum economic costs; simplicity of operations; the ability to perform technology elements by low-skilled personnel; simplicity and availability of materials, tools, fixtures and equipment. (Results and discussion) The technological process was based on the method of repair inserts, which are welded to the knife instead of the worn area. Inserts can be made from discarded spring sheets having a hardness of about 45 on the Rockwell scale. It was established that the restoration process consists of three stages: preparation of the knife for restoration; preparation of the insert; restoration. They have shown that the technological process is simple, versatile, there is no need for complex equipment and can be implemented in enterprises with minimal technical equipment. It can be adapted to restore the knives of ploughshares of other companies. It was noted that this technology fits into the import substitution program. (Conclusions) The developed technology of restoration of knives of composite ploughshares of the Lemken company was presented in a text version and in illustrations. The technology is characterized by simplicity of execution, versatility and can be adapted for the repair of knives from other companies.