In this article we discussed the possibility of replacement of cobalt alloy by Cr-Ni iron Base alloy in drill bit bearing on the basis of welding test, wearing test and microscopic examination.
本文通过焊接试验、显微分析和磨损试验论述了以铬、镍、铁基合金代替钴、铬、钨合金作石油钻头牙爪堆焊耐磨合金的问题。
The high specific weight tungsten alloy material is prepared by tungsten powder, nickel powder, iron powder and cobalt powder.
高比重钨合金材料由钨粉末、镍粉末、铁粉末和钴粉末制成。
The high specific weight tungsten alloy material is prepared by tungsten powder, nickel powder, iron powder and cobalt powder.
高比重钨合金材料由钨粉末、镍粉末、铁粉末和钴粉末制成。
应用推荐