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- cold drawn pipe mill 冷拔管机
- Non-mandrel drawing is a method widely used in cold drawn pipe production. 无芯棒拔制是冷拔钢管生产中应用最广泛的一种生产方法。
- EFFECT OF HOT-ROLLED PROCESS ON TRANSVERSAL CRACK OF COLD DRAW PIPE 热轧工艺对冷拔管横裂缺陷的影响
- Chain-cold drawing pipe mill 链式冷拔机
- cold draw pipe 冷拔管
- The establishment of high precise HFW steel pipe mill was proposed. 本文是作者建议建设一套高精度 HFW钢管机组的研究成果。
- cold drawn pipe 冷拔管
- The paper summarizes the hot-test and start-up of the Assel pipe mill imported from abroad. 总结了引进的阿塞尔轧管机热负荷试车及试生产情况。
- Introduced in the paper is a newly developed centring-roll system used on the rotary pipe mill. 介绍了一种用于斜轧钢管生产的新式定心辊装置。
- Residual stress, carbon segregation and acid cleaning after cold drawing played decisive roles in the hydrogen-induced cracking. 螺杆心部具有高的残余应力、较严重的碳偏析及拉拔后的酸洗为螺杆心部出现HIC空洞提供了条件。
- The article introduces the design methods of contact roller of internal press roller of forming machine of SSAW pipe mill(experience formula design). 介绍了螺旋焊管成型器内压辊斜置小辊线接触辊型的设计方法(经验公式设计法)。
- 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. 本文基于三维弹塑性大变形有限元分析理论,通过对内螺旋凸筋管冷拔成形过程进行有限元仿真,建立增量步与拉拔力的关系,提出了拉拔力的计算方法。
- It is concluded that using the pilger pipe mill to produce medium-sized mandrel is one of the possible approaches to localization of such product. 指出用皮尔格轧机生产中直径芯棒是实现其国产化的途径之一。
- Effects of cold drawing and water quench process on mechanical properties of prestressed wires have been studied in laboratory. 在实验室条件下研究了冷拔与水淬火工艺对予应力钢丝力学性能的影响。
- Plug life span of the plug pipe mill is associated not only with inner/outer surface quality of the pipe, but also with cost effectiveness. 自动轧管机顶头寿命不仅影响钢管内表面质量，也影响生产成本。
- Cold drawing of the as-spun polyblend fibers is necessary in order to improve the molecular orientation of polypropylene within it. 通过对初生纤维进行牵伸可以提高共混纤维中聚丙烯的取向度。
- The results show that it is successful to adopt the technolngy of cold drawing with core mandrel for processing the propeller shaft tube s... 试验结果表明,采用短芯棒冷拔工艺加工传动轴管,在技术上是成功的。
- For the ram compaction piles with composite bearing base, the speed of drawing pipe must be controlled, so as to avoid the gapping or the cut-off. 在复合载体夯扩桩的施工过程中,一定要控制好拔管速度,以免出现缩颈或断桩现象。
- Briefed in the paper is the current domestic situation concerning demand of medium-sized mandrels.The feasibility for producing such mandrel with pilger pipe mill is analyzed. 简要说明了国内中直径芯棒的需求情况,分析了皮尔格轧机生产中直径芯棒的可行性。
- Using viscoplastic model and considering softening effect, the mechancal analysis for cold drawing of polymers is performed as well. 对螺旋叶片进行了分析 ,把螺旋叶片焊接组合起来 ,旋加外力 ,冷拉成型。
