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Vacuum induction heating and percolation method and device for gear surface

A vacuum induction and thermal infiltration technology, applied in solid diffusion coating, metal material coating process, coating and other directions, can solve surface oxidation, there is no method and device suitable for vacuum induction heating diffusion infiltration on gear surface, and work efficiency It is not high enough to achieve the effect of bright surface, saving man-hours and good quality

Active Publication Date: 2019-05-03
CHONGQING UNIV OF TECH
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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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  • Vacuum induction heating and percolation method and device for gear surface
  • Vacuum induction heating and percolation method and device for gear surface

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] The present invention provides a kind of vacuum induction heating infiltration method on the surface of the gear, and its technological operation is carried out according to the following steps:

[0028] 1. Place the gear workpiece to be processed on the workbench in the inner cavity of the reaction device, close the sealing cover to seal the inner cavity of the reaction device, and open the vacuum device connected to the vacuum interface for vacuuming. When the vacuum in the inner cavity meets the use requirements , close the vacuum device.

[0029] 2. Open the valve of the feed hopper provided on the reaction device, and put the powder raw material required for the infiltration treatment into the inner cavity of the reaction device and fall into the filter device;

[0030] 3. The powder raw material is screened through the filter de...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C8/60C23C10/34
CPCC23C8/60C23C10/34
Inventor 胡建军马朝平蒋杰孙智富
Owner CHONGQING UNIV OF TECH
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