High vacuum gas boronization

Abstract

The invention provides a method for improving quality in boronizing industry, which is characterized in that boron element is infiltrated in the surface of the steel, thus forming an extremely hard boride layer on the surface, thereby improving the hardness of the die. Compared with other normal methods, the method has quick boronizing speed and good infiltration quality and improves the quality of the product.

Description

Technical field: [0001] The invention is a practical method in the modern surface chemical heat treatment industry. Background technique: [0002] Today's boronizing is a new type of heat treatment process developed in modern times, but it refers to the chemical heat treatment of steel or other alloys diffused into boron to obtain iron borides. The brittleness of the carburized layer also limits its application range. Powder solid boronizing is a boronizing process in which the workpiece is boronized in a medium of powder or particles, sealed, heated and kept warm. High labor intensity, poor workpiece conditions, high cost, slow boronizing speed, expensive iron boron carbide powder, long thermal diffusion time, high cutting temperature, shallow infiltration layer, etc. Invention content: [0003] The invention mainly refers to passing the gas boronizing agent into the cold-wall resistance vacuum furnace group for cracking and decomposition to generate active boron atoms,...

AI Technical Summary

Problems solved by technology

High labor intensity, poor workpiece conditions, high cost, slow boronizing speed, expensive iron boron carbide powder, long thermal diffusion time, high cutting temperature, shallow infiltration layer, etc.