Inspection Rules of Tungsten Contacts

Manufacturer's quality inspection department must inspect tungsten contacts and fill quality certificate to ensure that products conform to relevant standards.

Customers can test received tungsten contacts, if the test results does not conform to the mark of label, you can raise this problem to the manufacturer within three months, and after the two sides of mutual identification, if these tungsten contacts still not meet the requirements, the products failed.

Each batch of product sample in accordance with the following provisions:
The sample testing of the hardness, purity and the number of crystals of tungsten: Customers can directly make the sample preparation to measure tungsten contacts; or extracting a batch of products from the tungsten rods and sampling at its ¼. If the results fail, then double sampling retest. If there is still a failure, then the product failed.

In accordance with the provisions of GB / T 2828, check the size of the tungsten contacts, weld strength, appearance and the roughness of contact surface of tungsten contacts.
Specific check and accept programs can agree by manufacturers and customers.


 

Tungsten Metals Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten.com.cn
 Tel.: 86 592 5129696; Fax: 86 592 5129797
 Email: sales@chinatungsten.com
 Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
 Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
 Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

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