On 2018-08-08 14:48:54
Explanation of various carburizing processes
1 - carpurizing,carburization
In order to improve the carbon content of the surface layer of the workpiece and form a carbon content gradient in it, the workpiece is heated and insulated in the carburizing medium to make carbon atoms infiltrate into the chemical heat treatment process.
2 - pack carburizing,solid carburizing,box carburizing,powder carburizing
Carburizing in which the workpiece is placed in a sealed box filled with granular carburizing agent.
3 - gas carburizing
Carburizing of the workpiece in a carbon containing gas.
4 - drip feed carburizing
A gas carburizing process in which liquid carburizing agents such as benzene, alcohol, ketone and kerosene are directly dropped into the furnace for cracking.
5 - partial pressure carburizing,vacuum carburizing,low pressure carburizing
Carburizing in carburizing atmosphere under the condition of less than 1 × 105Pa (usually 102pa ~ 104pa).
6 - high temperature carburizing
Carburizing above 950 ℃.
7 - localized carburizing,selective carburizing
Carburizing only on a part or area of the workpiece.
8 - homogeneous carburizing
Carburizing in which the thin work piece penetrates completely from the surface to the center.
9 - carbide dispersion carburizing
Carburizing in which fine dispersed carbides are obtained on the carburizing surface to improve the service ability of the workpiece.
10 - sheet carburizing
After carburizing and quenching of workpiece, carburizing with the total case depth or effective case depth of surface less than or equal to 0.3mm.
11 - deep carburizing
After carburizing and quenching, the effective case depth of workpiece is more than 3mm.
12 - carbon restoration
Carburization of a workpiece after decarburization for some reason to restore the initial carbon content.