High-strength Threads for Drill Pipes.

被引:0
|
作者
Derganov, B.S.
Burtseva, L.P.
Tarashchik, V.D.
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Razvedka i ohrana nedr | 1980年 / 12期
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摘要
A technology for the milling of high-precision conical threads on an ordinary lathe and the design of the thread-milling head are described. The effect of the geometrical and technological parameters on the thread quality and the results of pilot-plant tests of a batch of drill pipes is shown.
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页码:23 / 25
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