Preparation of High Performance Anti-shock Non-sag tungsten Wire(2)

With the rapid economic development, national defense, transportation and other industries are gradually increasing their demand for high-performance anti-shock non-sag tungsten wire (not easy to sag and difficult algorithm of fault). How to prepare the production process based on the common non-sag tungsten wire on a high resistance to high temperature with good non-sag properties and seismic performance of sag tungsten wire? Sag tungsten powder metallurgy preparation stage has a critical effect on the temperature and anti-shock resistance of tungsten wire:

At 85% frequency current slow, heating with a two-stage sintering to obtain a sintered tungsten bar of external dimensions of 15 × 15 × 400mm, the density of 17.2g / cm3, grain size 7 to 8, the bar which have excellent high temperature performance and a good workability and resistance to shock cobalt-doped tungsten, of course, preferably slow heating temperature is best. Mechanism of cobalt tungsten improve the seismic performance of tungsten and cobalt-doped billet in the process of plastic working (swaging, stretching) changes of microstructure and properties were studied,  cobalt can improve K to penetrate the metal tungsten matrix is ​​reduced tungsten grains oxygen content, improve the seismic performance of the tungsten wire; tungsten wire with plastic processing depth increased density, tensile strength and work hardening increase, was with the processing of high-yield, high-temperature tungsten good performance.

 

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

• < Prev
• Next >