| 摘要 |
PROBLEM TO BE SOLVED: To provide a proof load test system which can perform axial tension proof load tests for all machine bolts, at the same time as with screw rolling, and with ease and quickness. SOLUTION: This test system is provide with a screw roller 1, which uses rolling to form a screw section B1 on top of the machine bolt B, and a proof loading mechanism 8 which pulls up the head B2 of the machine bolt B, to apply a constant proof load between the head B2 and the screw section B1, and determines whether it passes the proof load test. COPYRIGHT: (C)2006,JPO&NCIPI
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