发明名称 Method for monitoring and controlling stress in a threaded member
摘要 PCT No. PCT/FR92/01192 Sec. 371 Date Jun. 15, 1995 Sec. 102(e) Date Jun. 15, 1995 PCT Filed Dec. 16, 1992 PCT Pub. No. WO94/13437 PCT Pub. Date Jun. 23, 1994The tensile or compressive stress in a threaded member is determined by subtracting an unscrewing torque from a screwing torque, and dividing the resulting torque difference by a coefficient proportional to the screw pitch of the member. The torque values are recorded either statically at the screwing and unscrewing rest limit, or dynamically in a series of corresponding screwing and unscrewing positions. The method is particularly useful for measuring, monitoring and controlling stress in threaded fastening members used in screwed joints.
申请公布号 US5571971(A) 申请公布日期 1996.11.05
申请号 US19950481430 申请日期 1995.06.15
申请人 CIANDAR 发明人 CHASTEL, JEAN-MARC;REY, DIDIER
分类号 B25B23/14;(IPC1-7):G01L5/24 主分类号 B25B23/14
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