Analysis on Materials and Its Heat Treatment of the Roller Raceway in Mi ning Tri-cone Bit

Abstract:

The characteristics of materials and their heat treatments, which are applied to domestic and abroad mining tri cone bit, were carefully checked and compared. It follows from the analyses that the factors of machining and assembling bit should be taken into consideration besides the factors of improving quality of material and its heat treatment, in order to prolong the life of domestic tri cone bit.