Changes of Sintered Holes of Spinning Tungsten Tube

The survey results of longitudinal interface of tungsten tube with different processing rate by SEM (Scanning Electron Microscope) show that:

There is no big change between spinning tungsten tube and sintered tungsten compact tissue when processing rate is 12%, that is to say, completely non-deformed tissue still exist in tungsten tube, and its crystal grains show equiaxed grains and sintering hole is circular.

All parts of the spinning tungsten tube are already deformed when processing rate reach 26 %, the grain will somewhat elongated, and sintering hole is oval-shaped.

When processing rate up to 45-68%, spinning tungsten tube is not completely broken, in which can still see the original grain boundaries, and the crystal grain further elongated, the sintering hole is also further stretched.

When the processing rate of spinning tungsten tube rising to 76%, fibrous tissue occurs, the original crystal grains are broken, the original crystal grain boundaries no longer been sawn, sintering holes disappear.

 

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 >