Superior Weld Overlay Process Extends Life of Vertical ...
Nov 16, 2007· There are over 3,000 coal pulverizers in North America grinding millions of tons of coal each day. Grinding coal is not easy. ... of tungsten carbide and weld overlay material applied to the highwear areas of grinding rolls for vertical spindle mill pulverizers. ... are cut into the roll surface in the highwear areas of the roll s grinding ...