Stress monitoring and early warning method and system for prestress ring of cold extrusion mold
A prestressing ring and stress monitoring technology, which is applied in the field of metal plastic processing, can solve problems such as mold and prestressing ring cracking, mold and prestressing ring stress damage, etc., and achieve the effects of convenient operation, improved safety, and reduced costs
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[0022] specific implementation plan
[0023] In order to make the purpose, technical solution and advantages of the present invention clearer, the device of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments:
[0024] A cold extrusion die stress monitoring and early warning system consists of six parts: strain gauges, bridge box 3, dynamic strain gauge 4, industrial computer 2, feedback control switch 7, and alarm 8.
[0025] The strain gauge adopts a resistive strain gauge 11, which is pasted on the surface of the surface-treated prestressing ring 14. The surface of the resistive strain gauge 11 is covered with a layer of polyethylene film. The bridge box 3 input terminals are connected.
[0026] The bridge box 3 has an input terminal and an output terminal, the bridge box 3 input terminal is connected to the resistive strain gauge 11 by a wire, the bridge box 3 output terminal is connected to the inp...
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