[1]罗华权,张丽娜,仝 珂,等.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.[doi:10.19291/j.cnki.1001-3938.2017.11.008]
 LUO Huaquan,ZHANG Lina,TONG Ke,et al.Cause Analysis of Low Yield Strength and Tensile Strength of Induction Heating Elbow[J].,2017,40(11):37-42,46.[doi:10.19291/j.cnki.1001-3938.2017.11.008]
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感应加热弯管屈服强度和抗拉强度偏低原因分析()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
40
期数:
2017年第11期
页码:
37-42,46
栏目:
工艺与设备
出版日期:
2017-11-28

文章信息/Info

Title:
Cause Analysis of Low Yield Strength and Tensile Strength
of Induction Heating Elbow
文章编号:
10.19291/j.cnki.1001-3938.2017.11.008
作者:
罗华权1张丽娜2仝 珂1杨力能1何小东1张雪琴1
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
Author(s):
LUO Huaquan1 ZHANG Lina2 TONG Ke1 YANG Lineng1 HE Xiaodong1 ZHANG Xueqin1
1. CNPC Tubular Goods Research Institute, Xian 710077, China;
2. CNPC BEM Steel Pipe Design & Research Institute (Information Center) , Cangzhou 062658, Hebei, China
关键词:
焊管感应加热弯管屈服强度抗拉强度
Keywords:
welded pipe induction heating bend yield strength tensile strength
分类号:
TG162.8
DOI:
10.19291/j.cnki.1001-3938.2017.11.008
文献标志码:
A
摘要:
针对某管厂试制的弯管出现的过渡区外弧侧管体屈服强度和抗拉强度低于标准要求的情况进行了分析。对弯管取样进行了力学、化学及金相分析和试验。结果表明,弯管过渡区外弧侧管体屈服强度和抗拉强度偏低是因为该部位起始加热温度偏低(低于950 ℃),其淬火、回火后组织以铁素体居多,降低了抗拉强度,使其低于标准要求。建议弯管开始推制时,适当提高加热温度,使过渡区的力学性能达到要求。
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.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-06-28
作者简介: 罗华权(1983—),男,工程师,主要从事石油管材的质量监督及试验研究工作。
更新日期/Last Update: 2017-12-11