Sealing coring tools mainly consists of external threaded adapter, balance piston, limit joint, inner and outer barrel, core catcher, locating pin, sealing head and coring bit.
密闭取心工具主要由外螺纹接头、平衡活塞、限位接头、内外筒、卡箍岩心爪、定位销、密封头、及取心钻头等部件组成。
This paper introduces the manufacture of sealing surface (valve body) about great size check valve and analyzes the choices and the decisions about geometrical parameters of tools.
介绍了大口径止回阀阀体密封面的加工方法，分析了刀具几何参数的选择与确定。
The proper method is to use a metal to metal sealing cone. Most cone systems have a male and female shape that has to be manufactured using special cutting tools.
正确的方法是金属对金属的椎面密封。大多数的椎密封可以用特殊的切削工具做成内椎或外椎。
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