In this article, relations among reverse tension, friction coefficient and quality of wire are discussed in theory and practice of cold drawing process in detail.
对拉丝工艺中的反张力与界面摩擦系数及产品性能间的关系作了理论和实践方面的详细论述。
In addition, the decline of the temperature, the raise of the drawing velocity, the raise of the friction coefficient all could lead to the increase of the maximum stroke force.
另外，拉深温度的降低，冲压速度的增加，摩擦系数的增大都会使拉深时的最大冲程力增大。
The key risk impact factors of foundation engineering were identified by calculating the comprehensive effect coefficient of risk factors and drawing the reason-result figure.
通过计算各种风险因素的综合影响系数并绘制风险因素的原因一结果图，找出影响基础工程施工的关键风险因素。
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