Tungsten carbide seals with wear, corrosion resistance and other characteristics, widely used in petroleum, chemical industry and other mechanical seal.
Tungsten carbide seals technical requirements:
1、Tungsten carbide grade, the physical ,mechanical properties and microstructure used in the blank should comply with the relevant provisions of the standard criteria;
2、Blank off the edge, off angle depth not more than 0.33mm;
3、Rough surface may not have peeling, bubbling, delamination, cracking, porosity, over-burning, burning, etc. due to defects;
4、Rough section organization should be uniform, not have a black heart, bubbles, delamination, cracking, severe carburizing, decarbonization and not good pressure and other defects.
Tungsten carbide inspection rules and methods:
Rough detection rules executed with the provisions of GB5242's.