the scraper chain is the core component of the buried scraper conveyor. the quality of the scraper chain directly affects the normal operation of the buried scraper. It consists of chain rods, pins, scrapers and collars and other parts. The material of the chain rod and pin shaft is 20CrMnTi, and is carburized, and the hardness reaches HRC50. after carburizing treatment, it not only has good wear resistance and bending strength, but also has excellent comprehensive mechanical properties. Wear resistance, high strength and long service life.