焊管2017，Vol.40Issue(6)：57-60,64,5.DOI:10.19291/j.cnki.1001-3938.2017.06.010
冷定径工艺对热轧HFW焊管性能的影响
Influence of Cold Sizing Process on Hot-stretch Reducing HFW Pipe Performance
赵坤 1陈浩明 2介升旗 2李敬波 2窦茂科2
作者信息
- 1. 西安石油大学 材料科学与工程学院, 西安710065
- 2. 宝鸡石油钢管有限责任公司 宝鸡专用管分公司, 陕西 宝鸡721008
- 折叠
摘要
Abstract
In order to optimize the geometry precision of hot rolled HFW pipe and improve the performance of pipe billet strength, taking HFW J55 casing billet as an example, the strengthening effect of cold sizing on pipe billet performance and the change trend under different sizing reduction were studied through the analysis of the mechanical properties, microstructure and hardness test method. The results showed that under the treatment of cold sizing process, the longitudinal yield strength and tensile strength of pipe billet were strengthened, with maximum increase of 7%; the larger the sizing reduction, the more obvious the increase of pipe billet intensity. The research results showed that when produce low steel grade pipe or low toughness requirement steel pipe, increasing cold sizing process after hot-stretch reducing can increase steel pipe strength, but steel pipes that require higher strength or higher steel grade still need to be treated with appropriate heat treatment process.关键词
冷定径/定径量/加工硬化/包辛格效应/强度Key words
cold sizing/sizing reduction/work hardening/Bauschinger effect/strength分类
矿业与冶金引用本文复制引用
赵坤,陈浩明,介升旗,李敬波,窦茂科..冷定径工艺对热轧HFW焊管性能的影响[J].焊管,2017,40(6):57-60,64,5.
