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管生產(chǎn)中應(yīng)用最廣泛的一種生產(chǎn)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余應(yīng)力、較嚴(yán)重的碳偏析及拉拔后的酸洗為螺桿心部出現(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. 本文基于三維彈塑性大變形有限元分析理論,通過對內(nèi)螺旋凸筋管冷拔成形過程進(jìn)行有限元仿真,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(shí)驗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(jìn)行牽伸可以提高共混纖維中聚丙烯的取向度。The results show that it is successful to adopt the technolngy of cold drawing with core mandrel for processing the propeller shaft tube s... 試驗結(jié)果表明,采用短芯棒冷拔工藝加工傳動軸管,在技術(shù)上是成功的。 返回 Cold-drawing