Based on the broad-band random vibration test on a clamping support in missiles, this paper investigates the problems on evaluating the attachment bolt looseness in the structure.
本文在某支撑座结构模型宽带随机振动实验的基础上，研究了如何监测连接螺钉组松动故障程度的问题。
This paper propose the new mechanism of bolt welding, and the design of clamping yokes for hilt welding of electromagnetic switch shell.
提出了螺栓焊的新机理和螺栓设计原则。 设计了电磁开关壳体螺栓焊的焊接模具；
The die clamping screw arranged on the upper die can not loose, the die clamping is convenient, the die can be clamped well by directly screwing the bolt, and the production efficiency is high.
本发明合模螺丝装在上模上不会松脱，合模方便，直接拧紧螺栓就可以合好模具，生产效率高。
The die clamping screw arranged on the upper die can not loose, the die clamping is convenient, the die can be clamped well by directly screwing the bolt, and the production efficiency is high.
本发明合模螺丝装在上模上不会松脱，合模方便，直接拧紧螺栓就可以合好模具，生产效率高。
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