The conventional method of testing the shed drawing deformation of travellers is of poor precision and difficult operation.
目前纺纱用钢丝圈开口拉伸变形率的测量采用人工方法，精度低，操作困难。
This paper discusses the solid solution, surface treatment and drawing deformation and drawing process of GH90 alloy spring steel wires.
本文探讨了GH90合金弹簧钢丝的固溶处理、表面处理以及拉拔变形量和拉拔工艺。
On the basis of the fracture model and the deep drawing deformation force. The fracture limit prediction and control criterion is calculated.
根据破裂模型和拉深变形力，导出了破裂极限预报与控制判据。
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