发明名称 |
Bolt fastening method. |
摘要 |
<p>When a gradient of fastening torque for a bolt decreases by a certain amount from its maximum value, the bolt is further turned by a specific angle and the true or false of its yield point is detected based on the variations of torque, or torque gradient before and after this further bolt turning so that bolt fastening will be terminated only when true yield point has been detected.</p> |
申请公布号 |
EP0170068(A2) |
申请公布日期 |
1986.02.05 |
申请号 |
EP19850108102 |
申请日期 |
1985.06.29 |
申请人 |
KABUSHIKI KAISHA KOMATSU SEISAKUSHO |
发明人 |
AOKI, MAGANE;MICHIUCHI, NOBUYUKI;FUCHIGAMI, MASAO |
分类号 |
G01L5/24;(IPC1-7):G01L5/24 |
主分类号 |
G01L5/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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