φ90mm三辊穿孔机研制及不锈钢穿孔变形工艺研究

发布时间：2018-06-17 03:15

本文选题：三辊穿孔 + 不锈钢管　；参考：《太原科技大学》2015年硕士论文

【摘要】：随着科学技术不断进步,日常生活对于钢管的需求越来越大,小口径不锈钢管也得到广泛应用。由于不锈钢管的特殊性能以及三辊穿孔时管坯处于三向压应力状态的优点使得三辊穿孔机穿不锈管具有一定的优势。三辊穿孔不需要导板,使管坯在穿孔的过程中基本不受滑动摩擦,因此,减小了毛管内表面的缺陷。本文在总结小口径不锈钢无缝钢管的技术研究现状的基础上,以攀钢集团长城特殊钢铁有限公司新建φ90三辊穿孔机组项目为依托,对三辊穿孔机变形机理和工艺参数进行了研究,完成了以下内容:(1)根据小口径不锈钢无缝管的变形特点,对三辊穿孔穿轧不锈钢无缝管的工艺参数进行了研究,以攀钢集团长城特殊钢铁有限公司热挤压及精密无缝钢管工程-新建φ90三辊穿孔机组项目为依托,确定了设备参数完成了设备的研制。(2)在研究小口径不锈钢管三辊穿孔机变形工艺的基础上,进行了变形工具设计、变形、力能参数的研究。(3)应用deform软件对三辊穿小口径不锈钢管的变形过程进行数值模拟,研究了小口径不锈钢管三辊穿孔过程的变形特点,完成变形工具的三维设计和分析。(4)结合生产实际,在设备安装现场按照轧制工艺进行了试穿,并针对试生产过程中出现的问题进行总结分析,不断轧制工艺方案,在三辊穿孔机上成功轧出了合格的小口径不锈钢管。综上所述,本文将三辊穿孔变形过程理论研究与现代无缝钢管生产实际相结合,深入研究了小口径不锈钢管三辊穿孔过程的变形机理,为小口径无缝不锈钢管三辊穿孔工艺研究提供了理论基础和现实指导。
[Abstract]:With the development of science and technology, the demand for steel pipe is increasing in daily life, and the small diameter stainless steel pipe is also widely used. Due to the special performance of stainless steel tube and the advantages of three-roll piercing billet in the state of three-direction compressive stress, the three-roll piercing machine has certain advantages in penetrating stainless steel pipe. There is no need of guide plate for three-roll piercing, so the tube blank can not be subjected to sliding friction in the process of perforation. Therefore, the defect of inner surface of capillary tube is reduced. On the basis of summarizing the technical research status of small diameter stainless steel seamless steel pipe, this paper relies on the new 蠁 90 three-roll piercing machine project of the Great Wall Special Iron and Steel Co., Ltd., Panzhihua Iron and Steel Group Co., Ltd. The deformation mechanism and technological parameters of three-roll piercing machine are studied. The following contents are completed: 1) according to the deformation characteristics of small diameter stainless steel seamless pipe, the process parameters of three-roll piercing and rolling stainless steel seamless pipe are studied. Based on the hot extrusion and precision seamless steel pipe engineering of the Great Wall Special Iron & Steel Co., Ltd, Panzhihua Iron and Steel Co., Ltd. On the basis of studying the deformation technology of small diameter stainless steel tube three-roll piercing machine, the deformation tool was designed and deformed. The deformation process of three-roll stainless steel tube with small diameter and small diameter was simulated by using deform software, and the deformation characteristics of the three-roll piercing process of small diameter stainless steel pipe were studied. The 3D design and analysis of the deformation tools. 4) combined with the production practice, the rolling process was tried on the installation site of the equipment, and the problems in the trial production were summarized and analyzed, and the rolling process scheme was kept on. The qualified small diameter stainless steel pipe was successfully rolled on the three-roll piercing machine. In this paper, the deformation mechanism of the three-roll piercing process of small diameter stainless steel pipe is deeply studied by combining the theoretical study of the three-roll piercing process with the production practice of modern seamless steel pipe. It provides theoretical basis and practical guidance for the research of three-roll piercing process of small diameter seamless stainless steel pipe.
【学位授予单位】：太原科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TG335.71

【相似文献】