Technical Requirements of Tungsten Contacts in Cut-out

Technical requirements of tungsten contacts in cut-out:

Brazing material purity: ≥99.9%;

Weld seam strength of tungsten contacts : ≥78.45MPa;

Tungsten contacts are composed of the sit nails, tungsten sheet, and the solder, which are welding and manufacturing in the condition of hydrogen and nitrogen gas;

Tungsten sheet material must be according to JB / T9860.2 standards and its inspection of products is up to the aforementioned standard, its main technical parameters are as follows:

Purity: ≥99.95%;

Hardness: ≥70HRA;

Crystal grain number: 7500-25000 points / mm²;

Sit nail material is low carbon steel, whose carbon content is about 0.15% -0.20%, can also adopt other materials which own similar performance and composition and can be easily used for caulking.

 

Tungsten Metals Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten.com.cn
 Tel.: 86 592 5129696; Fax: 86 592 5129797
 Email: sales@chinatungsten.com
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 Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

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