Creation of a wear-resistant bimetallic coating for the track treadmill of a crawler

The technology of creating a bimetallic compound steel 20GL – a hard alloy of the Fe-Cr-C system, formed during the casting process by melting the carbide powder of the PG-C27 alloy due to the heat of the crystallizing melt, is investigated in this article. The resulting bimetallic compound on the working surfaces of the crawler makes it possible to increase the abrasive wear resistance. The production of bimetallic castings in the casting process involves the complete or partial penetration of inserts made of wear-resistant material placed on the working surface of the casting during its crystallization. Upon contact with the melt, the melt penetrates and partially melts the particles of the inserts to form a single bimetallic composition. Based on the above and in order to increase the durability and wear resistance of cast parts of road construction and agricultural machinery, we have developed a technology for bimetallic steel - hard alloy PG-C27 type “sormite”. The obtained bimetallic compound makes it possible to increase the abrasive wear resistance on the working surfaces of the crawler.