Vacuum induction heating and percolation method and device for gear surface

Abstract

The invention provides a gear surface vacuum induction heating diffusion-permeation method and device. A to-be-treated gear workpiece is placed on a workbench in an inner cavity of of a reaction device and a vacuum device is used for vacuumizing. Powder raw materials enter the inner cavity from a hopper and enter a reaction vessel under a filtering device after being screened by the filtering device. An induction coil is heated after being powered on so that the temperature of the gear workpiece can be increased to meet the requirements of the heating diffusion-permeation process, and the surface heating diffusion-permeation treatment reaction is conducted. According to the heating diffusion-permeation method, because the workpiece is heated in the vacuum condition, the surface of the workpiece which is heated and diffused with a coating cannot be oxidized or decarburized and is bright and good in quality; the powder formula can be adjusted according to requirements, and the atmosphere is controllable; feeding can be conducted independently or continuously, and the contact area is large, the reaction is uniform, and the efficiency is high; and through induction heating, the workpiece can be heated rapidly, so that work hours are saved.

Description

technical field [0001] The present invention relates to a method of vacuum induction heating and infiltration on the surface of gears, a method and device for vacuum induction heating and infiltration of alloy elements on the surface of metal parts such as gears and materials, and is mainly used for the preparation and application of metallurgical bonding coatings on the surface of metal parts and materials. Surface alloying belongs to the technical field of metal surfaces. Background technique [0002] As an important part of mechanical transmission, gears are widely used in aviation, aerospace, navigation, automobiles and other fields. However, they often cannot continue to work due to tooth surface failure. Therefore, improving the surface properties of gears is an important research topic at present. With the continuous development of science and technology, transmission mechanisms operating under special working conditions have put forward higher and higher requirements...

AI Technical Summary

Problems solved by technology

However, the work efficiency of the expansion and infiltration process technology is not high enough, and the surface oxidation is serious, which is a problem that needs to be solved. In view of this problem, there is no method and device suitable for vacuum induction heating and infiltration on the surface of gears in the prior art.

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