Wear-resistant layer of powder knife and processing technology

Abstract

The invention relates to a wear-resistant layer of a powder knife and a processing technology, wherein the wear-resistant layer is a nano coating layer, and the processing technology comprises the steps of: (1) cleaning the surface of a metal sheet of the powder knife; (2) coating a nano powered material on the surface of the cleaned powder knife and drying the nano powdered material; and (3) cladding the powder material by laser beams, protecting the powder material by inert gas, and cooling. The processing technology of the powder knife realizes cladding of the nano coating on the metal powder knife by utilizing the laser cladding technology, increases the wear resistance, and repairs the old powder knife.

Description

technical field [0001] The invention relates to a treatment process for the surface coating of a metal powder-discharging knife in a developing system of a printer and a copier, in particular to the coating of a nano-wear-resistant layer on the surface of a metal sheet on the powder-discharging knife. Background technique [0002] The powder knife is an important part of the toner cartridge of the laser printer. Its function is to control the toner delivered to the developing roller at a reasonable thickness to control the amount of toner; in addition, the powder knife is also used to give Toner charging. Therefore, the performance of the powder knife is very important to the printing quality. [0003] Commonly used powder knives have two materials. One is a rubber strip and the other is a metal sheet. Because the rubber is easy to deform when the temperature is high and it is easy to age after long-term use, etc., it is easy to produce uneven pressure distribution betwee...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of insufficient wear resistance of the existing metal powder knives, and provide