Novel anti-carburizing paint

Abstract

The invention discloses novel anti-carburizing paint. The novel anti-carburizing paint is prepared from the following components by mass percent: 15% of boric acid, 8% of titanium dioxide, 6% of lithium bentonite, 5% of chrome yellow, 3% of maleic acid, 4% of lotus root starch, 5% of sodium benzoate, 3% of polyether, 3% of potassium chloride, 2% of paraffin, 3% of mesotrione, 0.5% of sodium hydroxide, 2% of zinc chloride and 2% of ferrous sulfate, and the balance being water. The anti-carburizing paint can be removed through washing after carburizing heat treatment, so that the problem that traditional anti-carburizing paint is difficult to peel after carburizing heat treatment is solved; and in the formula of the anti-carburizing paint, an inorganic high-temperature resistant material isadopted as an anti-carburizing agent, an anti-carburizing coating formed after the anti-carburizing agent is smeared on the surface of a workpiece is good in caking property and does not peel and flowat high temperature, and the carburizing atmosphere is not affected.

Description

technical field [0001] The invention relates to an anti-carburization coating. Background technique [0002] Gears and other mechanical parts generally need to be carburized on the working surface or force-bearing surface after machining, and then quenched or other heat treatment to improve their mechanical properties, chemical properties and processing properties. In order to prevent the surface of the secondary processing in the subsequent process from producing brittleness and hardness and damage the processing tool, it is necessary to perform anti-carburization treatment on the surface of the workpiece during carburizing. The anti-carburization methods of steel parts mainly include mechanical processing method, copper plating method and anti-carburization coating method. The machining method is to increase the machining allowance of the workpiece, and remove the carburized layer by cutting after carburizing and heat treatment. This method not only wastes materials, but...

AI Technical Summary

Problems solved by technology

However, the water-based resin as the main component of this coating is an organic substance that is not resistant to high temperatures, and it will decompose during the carburizing process, which will interfere with the carburizing atmosphere and affect the carburizing quality.