34Mn6石油套管K55级接箍料性能波动的研究  

Study on Inconsistency of Performance for K55 Couplings of 34Mn6 Oil Casing

作　　者：谭永军[1,2] 李炜[2] 乔爱云[2] 

机构地区：[1]内蒙古科技大学材料与冶金学院,内蒙古包头014010 [2]内蒙古包钢钢联股份有限公司无缝钢管厂,内蒙古包头014010

出　　处：《包钢科技》2010年第4期31-33,共3页Science & Technology of Baotou Steel

摘　　要：包钢无缝厂Φ400 mm机组生产的K55级接箍料,其冲击韧性和抗拉强度在实际生产中存在一定的波动性,文章结合实际生产的工艺状况,通过分析成品管性能的影响因素,提出细晶强化及三辊定径后采用控制冷却的方式来提高接箍料的机械性能,并在生产中得到验证,产品性能完全符合API—5CT[1]的要求。The K55 coupling is produced with Φ400 mm plant units in Seamless Tube Plant,its product performances include impact toughness and tensile strength,and there might be undulatory property on them in actual production.In the paper,combining with the state of arts in actual production,ways of refined crystalline strengthening and controlled cooling after three-roll sizing that could improve mechanical properties of couplings are proposed by analysing the influencing factors for product performances,and they are verified in the production.The product performances meet the API-5CT[1] specifications.

关 键 词：接箍料 细晶强化 控制冷却 

分 类 号：TG142.1[一般工业技术—材料科学与工程]