Spraying painting material for slide bearing

Abstract

A spray material for slide bearing is a self-fused hard alloy powder for the hot galvanizing machine set, and contains Cr (20-26 wt.%), Co (22.8-61), Mo (10-16), W (6-12), Si (1-4), B (2-5), F (less than 14) and C (less than 0.2). Its spayed layer has high anticorrosion and antiwear performance to elongate the service life of slide bearing up to 21-27 days with low cost.

Description

Technical field: [0001] The invention relates to a sliding bearing spray coating material, which belongs to the self-fluxing hard surface alloy powder material, and is mainly used as a spray coating on the relative sliding surface of the sliding bearing of the sinking component of the continuous heat zinc unit. Background technique: [0002] One sink roll and two stable rolls are installed on the support arm through sliding bearings to form a set of sinking components. The submerged component works in a zinc pot with a zinc liquid at about 465°C, and the steel strip passes through the submerged roll and passes between the stabilizing rolls in the zinc pot to complete the galvanizing process. The sliding bearings installed at the journals at both ends of the sinking roller and the stabilizing roller of the sinking component bear the directional force of the rollers on it and the corrosion of zinc liquid, resulting in serious wear and tear. When the amount of local wear excee...