高炉用冷拔厚壁无缝钢管的生产工艺试验  

Experiment on Manufacturing Process of Cold-drawn Heavy-wall Seamless Steel Tube for Blast Furnace Service

作　　者：康志勇[1] 

机构地区：[1]武钢集团汉口轧钢厂,湖北武汉430035

出　　处：《钢管》2004年第3期22-24,共3页Steel Pipe

摘　　要：概述了武钢炼铁高炉用Φ38mm×11mm×9000mm定尺无缝钢管的生产工艺试验过程。根据产品要求,对冷拔工艺道次进行了优化。按冷加工钢管壁厚变化的规律,重点研究了厚壁管冷变形的情况,并设计出符合高炉用无缝钢管要求的产品。经生产实践证明,其工艺可行。同时指出厚壁管的定壁道次及空拔道次的壁厚变化是该产品生产中的关键。Briefed in the paper is the process of the experiment on manufacturing process of the Φ 38 mm × 11 mm×9 000 mm seamless steel tube to be used by the blast furnace located at Wugang iron melting facility. According to relevant product requirements, the cold-drawing passes are optimized, and following the law of wall thickness variation of the cold-formed steel tube, the cold-deformation of the heavy-wall tube is mainly studied, based on the result of which, the seamless steel tube meeting the need for the blast furnace operation is engineered. Relevant rolling operation shows that the rolling process is feasible. It is pointed out that the rolling passes to determine the wall thickness and wall thickness variation during the void drawing passes are the critical factors for manufacturing of the tube.

关 键 词：高炉用冷拔无缝钢管 小直径厚壁钢管 壁厚变化 工艺控制 

分 类 号：TG356.52[金属学及工艺—金属压力加工]