Process method for removing rusty stains of cam shaft

Abstract

The invention discloses a process method for removing rusty stains of a cam shaft. The method sequentially comprises the following steps: quenching; cleaning; and tempering. A cleanout fluid used in the cleaning step contains an anti-rust liquid. The process method disclosed by the invention is simple in process, free from any influence on size, shape, surface gloss and precision of the cam shaft and good in rust removal effect.

Description

technical field [0001] The invention relates to the technical field of auto parts processing technology, more specifically, it relates to a process method for removing rust spots of a camshaft. Background technique [0002] Steel precision parts are very easy to corrode and rust in humid and atmospheric environments. For example, the camshaft, a key component of the automobile brake system, most of the end of the camshaft is processed as a 10-tooth spline. At present, after the camshaft is quenched, it is only wiped, not Wash, then temper again. Therefore, after tempering, the splined end of the camshaft is prone to rust spots and stains. Because of the turning fine lines on the surface, it is very difficult to remove the rust spots at the bottom of the lines by manual methods. It is not only difficult to remove, but also requires a lot of manpower and material resources. The use of pickling to remove rust may affect the precision, surface gloss, and even shape and size of...

AI Technical Summary

Problems solved by technology

Therefore, after tempering, the splined end of the camshaft is prone to rust spots and stains

Because of the turning fine lines on the surface, it is very difficult to remove the rust spots at the bottom of the lines by manual methods. It is not only difficult to remove, but also requires a lot of manpower and material resources.

Pickling and rust removal may affect the precision, surface gloss, and even the shape and size of the spline teeth of the camshaft teeth.