焊管2017，Vol.40Issue(11)：37-42,46,7.DOI:10.19291/j.cnki.1001-3938.2017.11.008
感应加热弯管屈服强度和抗拉强度偏低原因分析
Cause Analysis of Low Yield Strength and Tensile Strength of Induction Heating Elbow
罗华权 1张丽娜 2仝珂 1杨力能 1何小东 1张雪琴1
作者信息
- 1. 中国石油集团石油管工程技术研究院,西安710077
- 2. 中国石油渤海装备钢管设计研究院信息中心,河北沧州062658
- 折叠
摘要
Abstract
In this paper,the situation of yield strength and tensile strength of the external arc side pipe in the transition zone of trial production bend which were below the standard requirements were analyzed.By the mechanics, chemistry and metallographic testing, the results show that the situation was because that the origin heating temperature (less than 950 ℃) was lower, the ferrite was in the majority after quenching and tempering, and the tensile strength was reduced to below the standard requirement. It was suggested that the origin heating temperature should be increased when the bend was pushed, the mechanical properties of the transition zone can meet the standards requirements.关键词
焊管/感应加热弯管/屈服强度/抗拉强度Key words
welded pipe/induction heating bend/yield strength/tensile strength分类
矿业与冶金引用本文复制引用
罗华权,张丽娜,仝珂,杨力能,何小东,张雪琴..感应加热弯管屈服强度和抗拉强度偏低原因分析[J].焊管,2017,40(11):37-42,46,7.
