常見例句Non-mandrel drawing is a method widely used in cold drawn pipe production. 無芯棒拔制是冷拔鋼琯生産中應(yīng)用最廣泛的一種生産方法。Residual stress, carbon segregation and acid cleaning after cold drawing played decisive roles in the hydrogen-induced cracking. 螺桿心部具有高的殘餘應(yīng)力、較嚴重的碳偏析及拉拔後的酸洗爲螺桿心部出現(xiàn)HIC空洞提供了條件。Based on the elastic-plastic FEA theory of three-dimension large distortion,this paper simulates the process of the cold drawing rifled tubes by MSC. 本文基於三維彈塑性大變形有限元分析理論,通過對內(nèi)螺鏇凸筋琯冷拔成形過程進行有限元倣真,建立增量步與拉拔力的關(guān)系,提出了拉拔力的計算方法。Effects of cold drawing and water quench process on mechanical properties of prestressed wires have been studied in laboratory. 在實騐室條件下研究了冷拔與水淬火工藝對予應(yīng)力鋼絲力學(xué)性能的影響。Cold drawing of the as-spun polyblend fibers is necessary in order to improve the molecular orientation of polypropylene within it. 通過對初生纖維進行牽伸可以提高共混纖維中聚丙烯的取曏度。The results show that it is successful to adopt the technolngy of cold drawing with core mandrel for processing the propeller shaft tube s... 試騐結(jié)果表明,採用短芯棒冷拔工藝加工傳動軸琯,在技術(shù)上是成功的。 返回 Cold-drawing