厚壁管材壁厚均匀性问题的分析与对策  

Analysis and Countermeasures of the Thickness Uniformity Problem of Thick-wall Pipes

作　　者：王国亮[1] 李进喜[1] WANG Guo-liang;LI Jin-xi(Tianjin Pipe（Group）Incorporated Company,Tianjin 300301)

机构地区：[1]天津钢管集团股份有限公司,天津300301

出　　处：《天津冶金》2018年第3期6-9,共4页Tianjin Metallurgy

摘　　要：为解决厚壁管在生产过程中壁厚不均问题,分析其产生原因,结合加热、穿孔工艺调整,通过改进穿孔定心工艺,采用管坯通体定心技术,实现了对厚壁管管体壁厚精度±5%控制,使产品成材率提高了2.2%～5.1%。In order to solve the problem of uneven wall thickness in the production process of thick-wall pipes, the causes are analyzed. Combined with the adjustment of heating and perforation technology,through improving the centering process of piercing, adopting the process of centering the whole body of the tube billet, the accuracy of thickness of thick-wall pipe is up to ±5%, and the yield of product is increased by 2.2% and 5.1% respectively.

关 键 词：厚壁管材 精度 定心工艺 穿孔工艺 加热工艺 成材率 

分 类 号：TG335.71[金属学及工艺—金属压力加工]