对绳索取心钻杆丝扣牙型基准的讨论

A Discussion on the Gauge of Thread Cutter of the Wire-Line Coring Drill Rod

部颁绳索取心钻杆螺纹新标准,对克服当前的加工紊乱现象有意义,在技术上也吸取了国内外各家之长,但在实用中尚存在某些问题.本文从理论到加工、使用,进行了较系统的分析和探索,提出了具体的改进建议.

The new standard issued by the MMI for the thread of wire-line coring drill rod is of great significance in overcoming the present confusion state of machining. Althrough the new standard hasderived many strong points from similar products of different makers at home and abroad, some problems in practice remain to be improved. After a systematic analysis on the underlying theory, ma chining and using, some suggestions concrete for improvement are put forward.