1) brace a bit
装上钻头
2) bucking the tool joint
钻杆装接头
3) swivel wrench
钻头装卸器
4) raising and lowering of bit
钻头上下跳动
5) welding of rock bit assembling
钻头组装焊接
1.
This paper introduces the main characteristics of rich Ar mixed gas shield welding with metal powder cored wire, and then designs and experiments on welding parameters, obtains optimum welding specification for this method application on the welding of rock bit assembling, at last, analyses the cost of producing.
介绍了金属粉芯焊丝富氩混合气体保护焊的主要特点 ,对焊接工艺进行了设计与试验 ,得出了该方法用于钻头组装焊接的最佳工艺规范 ,最后进行了成本分析。
6) break-out plate
装卸钻头卡板
补充资料：装聋装哑
1.见"装聋作哑"。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条