Diffusion Welding Methods of Tungsten Alloy and Tantalum Alloy in Low Temperature

The invention relates to a tungsten alloy and tantalum alloys cryogenic diffusion welding method, the steps of this method include: (1) the cleaning steps of workpiece surface: tungsten alloy, tantalum alloy processed to a predetermined size, and to be welded to remove them and the intermediate layer - nickel foil surface oxide layer;

(2)the steps of workpiece assembly : the middle layer - nickel foil placed between the tungsten alloy and tantalum alloy structure is welded to the workpiece;

(3)the steps of vacuum diffusion welding: put welded workpiece into the vacuum diffusion welding furnace, heating, insulation. At the beginning of the insulation axial pressure is applied to the workpiece. At the end of insulation, we should remove pressure and cool in the furnace.

The problem of the present invention is able to overcome that the existing welding techniques can not be achieved at a low temperature of tungsten alloys and tantalum alloys high quality diffusion welding. This invention is particularly suitable for reliable and precision at low temperatures of the diffusion welding between the tungsten alloys and tantalum alloys. The tungsten tantalum welded body can be used to in the fields of high-pressure physics and nuclear fusion research.


Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

• < Prev
• Next >