Pressurizing device and method for vacuum diffusion welding machine

A technology of vacuum diffusion welding and pressure device, which is applied in welding equipment, non-electric welding equipment, metal processing equipment, etc., can solve the problems of low welding efficiency, high welding temperature, and incompatibility.

Inactive Publication Date: 2005-09-21
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

Based on the above reasons, the vacuum diffusion welding machine shows the following shortcomings: first, the welding time is long, the whole welding process is 5 to 10 hours; the welding temperature is high, generally 0.6 to 0.85T m , where T m is the melting point temperature of the material to be welded
Therefore, the weld...

Method used

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  • Pressurizing device and method for vacuum diffusion welding machine
  • Pressurizing device and method for vacuum diffusion welding machine

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Embodiment Construction

[0019] refer to figure 1 . The pressurized actuator consists of a pressurized cylinder 2 that can apply static load or quasi-static load pressure and a vibration cylinder 1 that can apply impact pressure in series. That is, the vibrating cylinder 1 is above the pressurized cylinder 2, and the two share an upper pressurized shaft 3.

[0020] The upper pressurized shaft 3 shared by the vibration cylinder 1 and the pressurized cylinder 2 is rigidly connected to the upper end of the pressure sensor 4 through threads, the lower end of the pressure sensor 4 is connected to the top boss 5 of the upper flange through threads, and the lower flange 7 is integrated with the bellows 8. At the same time, the lower pressurization shaft 9 is fixed inside the upper flange 6 , and the lower pressurization shaft 9 passes through the bellows 8 and extends into the vacuum chamber 15 .

[0021] In order to prevent dislocation and deflection of the joint to be welded during the vibration pressure...

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Abstract

This invention disclose a pressure device for vacuum diffusion welding, with the purposes of solving problem of long time weld, too high temperature, which is characterized in adding a vibrating cylinder (1) to present device, precise pressure regulating valve, vibration controlling valve controlled by PLC and PLC matching with (1), wherein, vibrating cylinder (1) and pressure valve (2) share a pressure axis (3), other parts are all rigidly attached, vibrating cylinder (1) is attached to gas source circuit via precise regulating valve and vibration controlling valve and parallel to pressure circuit. The invention can lower welding temperature by 30-300Deg.C, reduce welding time by 20-50%, and improve efficiency of device by 1-3 times.

Description

technical field [0001] The invention relates to a pressurizing device of a vacuum diffusion welding machine, and also relates to a pressurizing method of the pressurizing device of a vacuum diffusion welding machine. Background technique [0002] The executive body of the pressurization device of the vacuum diffusion welding machine is mainly a single pneumatic cylinder or a single hydraulic cylinder. For example, Zhang Fusheng et al. used a single hydraulic cylinder executive body in the diffusion welding machine they developed [Zhang Fusheng, Xiong Jiangtao et al. Development of a new type of radiation heating vacuum welding machine. Journal of Lanzhou University of Technology, 2004, 30: 243-245]. The known form of the pressurization system that takes this type of executive body as the core is as attached figure 1 -a shown. The single-cylinder actuator makes the pressurization can only be selected and combined in three ways: constant pressure, slow rise and slow fall. ...

Claims

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Application Information

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IPC IPC(8): B23K20/00B23K20/02
Inventor 熊江涛李京龙张赋升王忠平
Owner NORTHWESTERN POLYTECHNICAL UNIV
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