Method for preparing flat headgear self-lubricating wear resisting layer with laser cladding technology

Abstract

The invention relates to a method for preparing a flat headgear self-lubricating wear resisting layer with a laser cladding technology. The method is characterized in that: a flat headgear surface part requiring laser cladding is cleaned and polished, such that an oxide layer and a fatigue layer are completely removed; laser cladding is carried out, wherein a gradient functional material is adopted in the cladding layer, a cobalt-based powdery material with a self-lubricating performance is adopted in a surface wear resisting layer, and and iron-based alloy powder with good impact resistance and good metallurgy compatibility with a substrate is adopted between the wear resisting layer and the substrate; detections are carried out upon dimensions before and after cladding, such that cladding thickness is determined; through dye penetrant inspection, it is ensured that the cladding layer has no crack, pore, or inclusion. The wear resisting layer is advantaged in that: the bonding strength of the wear resisting layer and the substrate is high, the self-lubricating performance is good, the adaptability is good, the operation is simple, the processing error is small, the thickness of the wear resisting layer is uniform, and the like.

Description

technical field [0001] The invention relates to a wear-resistant and anti-corrosion method for metallurgical equipment parts, in particular to a method for preparing a self-lubricating wear-resistant layer of a flat headgear by using laser cladding technology, which belongs to C23C24 / 10 (January 2006) in the IPC International Patent Classification Table ) I technical field. Background technique [0002] The flat head cover is a part of the hot rolling line in the metallurgical industry. Its function is to transmit the torque output by the motor to the roll. It is one of the key parts of the main drive system of the hot rolling machine. [0003] The characteristics of the work of the mechanical main transmission system are frequent starting and braking, and are often subjected to sudden loading. This unstable operation process caused by many external disturbances has a great impact on the work of the main transmission system of the rolling mill machinery, and seriously affec...

AI Technical Summary

Problems solved by technology

However, for other specific equipment parts, such as special working condition structures such as flat headgear, the existing laser cladding process parameters are obviously unable to adapt

[0017] According to the applicant's search and verification: the laser cladding process is used to complete the manufacture of the wear-resistant layer of the flat headgear. There is no precedent in China, and there are no related reports abroad.