Wear-resistant chain pin

摘要

Problem. To provide a chain pin which makes it possible to improve wear resistance even in an environment in which degraded oil is used. Solution. A large number of pins are mixed/agitated together with a particle mixture including a penetrant comprising chromium (Cr) powder and tungsten carbide (WC) powder, and an iron chloride (FeCl3) catalyst, and WC particles penetrate the surface of the pins together with chromium carbide (CrC). As a result, a chromium carbide layer in which WC particles are diffused in a CrC layer (CrC—WC layer) is formed on the outermost surface part of the steel forming the parent material of the pins.

主权项

1. A method for producing a wear-resistant chain pin, wherein a steel material forming the parent material of the pin is introduced into a vessel together with chromium, tungsten carbide and a halide catalyst, and stirring is performed inside the vessel under a temperature of 750-950° C. in order to form a diffusion coating on the steel material, whereby a chromium carbide layer in which tungsten carbide is diffused is formed on the outermost surface part of the steel material.