[1]赵太源,李亚军,肖 莉.缓冲罐用Q345R钢焊接性试验及工艺评定[J].焊管,2019,42(5):51-54.[doi:10.19291/j.cnki.1001-3938.2019.5.008]
 ZHAO Taiyuan,LI Yajun,XIAO Li.Weldability Test and Procedure Qualification of Q345R Steel for Buffer Tank[J].,2019,42(5):51-54.[doi:10.19291/j.cnki.1001-3938.2019.5.008]
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缓冲罐用Q345R钢焊接性试验及工艺评定()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
42
期数:
2019年第5期
页码:
51-54
栏目:
工艺与设备
出版日期:
2019-05-28

文章信息/Info

Title:
Weldability Test and Procedure Qualification of
Q345R Steel for Buffer Tank
文章编号:
10.19291/j.cnki.1001-3938.2019.5.008
作者:
赵太源李亚军肖 莉
中国石油济柴动力有限公司 成都压缩机分公司, 成都 610100
Author(s):
ZHAO Taiyuan LI Yajun XIAO Li
CNPC Jichai Power Equipment Company Chengdu Compressor Plant, Chengdu 610100, China
关键词:
焊接Q345R缓冲罐焊接工艺显微组织力学性能
Keywords:
welding Q345R buffer tank welding procedure microstructure mechanical properties
分类号:
TG457.6
DOI:
10.19291/j.cnki.1001-3938.2019.5.008
文献标志码:
B
摘要:
为了提高石油化工行业中缓冲罐的使用性能,采用钨级氩弧焊打底、埋弧焊填充和盖面的焊接工艺对Q345R钢级Φ600 mm×32 mm钢管进行焊接,并对焊接接头进行了探伤检测、力学性能检测和显微组织分析。试验结果表明:焊接接头抗拉强度大于525 MPa,-20 ℃冲击吸收功达到100 J以上,弯曲和硬度检测合格,满足技术要求。同时,根据设计的焊接工艺参数对Q345R缓冲罐进行焊接并开展了耐压试验,在水压6.25 MPa,保压1 h的条件下,焊缝未发生渗漏,无可见变形和异常声响,设计的焊接工艺满足缓冲罐应用要求。
Abstract:
In order to improve performance of buffer tanks in petrochemical industry, gas tungsten arc welding for backing weld and submerged arc welding for fill and cap weld were used for welding Q345R Φ600 mm×32 mm steel pipe, flaw detection, mechanical properties and microstructure analysis of the welded joints were analyzed. The test results showed that the tensile strength of the welded joint was more than 525 MPa, the impact absorption work of -20 ℃ was over 100 J, and the bending and hardness tests were qualified, meeting the technical requirements. According to the designed welding process parameters, the welding and the pressure test of Q345R buffer tank were carried out. Under the condition of water pressure for 6.25 MPa  and holding pressure for 1 h, there was no leakage in the weld and no deformation or abnormal sound, and the designed welding process met the application requirements of the buffer tank.

参考文献/References:

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备注/Memo

备注/Memo:

收稿日期:2018-12-24

基金项目: 中国石油集团公司重大科研专项“地下储气库关键技术研究与应用”(项目编号2015E-400502)。
作者简介:赵太源(1986—),男,硕士,国际焊接工程师,主要从事焊接工艺研究工作。

更新日期/Last Update: 2019-06-20