... thread angle 螺纹牙形角度 thread compound 螺纹油 thread cutting die 螺纹板牙 ...
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分析了API圆螺纹油套管发生粘扣的基本过程及机理。
The gluing mechanism of API round thread casing and tubing is analyzed.
在管道螺纹上涂敷螺纹油,但是不要在阀门螺纹上涂螺纹油。
Apply pipe dope sparingly on pipe threads, never on valve threads.
根据需要可分为套管螺纹循环接头和油壬螺纹循环接头(全规格)。
According to actual needs. there are circulating sub with casing thread and circulating sub with union thread.
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