[1]邱蜀峰,唐澜,唐力,等.L360QS/N06625冶金复合管堆焊层稀释率及性能研究[J].焊管,2024,47(1):7-12.[doi:10.19291/j.cnki.1001-3938.2024.01.002]
 QIU Shufeng,TANG Lan,TANG Li,et al.Study on Dilution Rate and Performance of L360QS/N06625 Metallurgical Composite Tube[J].,2024,47(1):7-12.[doi:10.19291/j.cnki.1001-3938.2024.01.002]
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L360QS/N06625冶金复合管堆焊层稀释率及性能研究()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
47
期数:
2024年第1期
页码:
7-12
栏目:
试验与研究
出版日期:
2024-02-01

文章信息/Info

Title:
Study on Dilution Rate and Performance of L360QS/N06625 Metallurgical Composite Tube
文章编号:
10.19291/j.cnki.1001-3938.2024.01.002
作者:
邱蜀峰唐澜唐力孙彦青
1. 中国石油天然气股份有限公司西南油气田分公司川东北气矿,四川 达州 635000; 2. 西安向阳航天材料股份有限公司,西安 710065
Author(s):
QIU Shufeng TANG Lan TANG Li NIU Ben SUN Yanqing
1. PetroChina Southwest Oil and Gas Field Company Northeast Sichuan Gas District, Dazhou 635000, Sichuan, China; 2. Xi’an Xiangyang Aerospace Materials Co., Ltd., Xi’an 710065, China
关键词:
冶金双金属复合管堆焊层稀释率腐蚀性能力学性能
Keywords:
metallurgical bimetallic composite tube surfacing layer dilution rate corrosive properties mechanical properties
分类号:
TG441.3
DOI:
10.19291/j.cnki.1001-3938.2024.01.002
文献标志码:
A
摘要:
采用钨极氩弧焊在L360QS表面堆焊N06625,制备了冶金双金属复合管,并通过堆焊层Fe含量测试、无损检测及理化性能检测等方法研究了不同工艺参数下管坯的综合性能以及热输入量和冷却方式对稀释率的影响。结果显示,随着热输入量的减小,堆焊层Fe含量降低,但热输入量较低时会产生分层现象;热输入量相同时,采用水冷工艺后堆焊层Fe含量降低了2.06%;第一层、第二层焊接电流分别为175 A和185 A,送丝速度分别为1.3 mm/min和1.5 mm/min,焊接电压为14.5 V,焊接速度为250 mm/min,冷却方式水冷的方案4为L360QS/N06625冶金双金属复合管最佳堆焊工艺。采用此工艺焊后复合管材综合性能良好,其中堆焊层点腐蚀平均速率为0.148 1 g/m2,晶间腐蚀平均速率为0.30 mm/a,满足设计和使用要求。
Abstract:
A metallurgical bimetallic composite pipe was prepared by surfacing N06625 on the surface of L360QS by using tungsten inert gas arc welding. The comprehensive performance of the pipe blank under the different process parameters, as well as the influence of the heat input and the cooling method on the dilution rate, were studied through Fe content testing, non?estructive and physicochemical performance testing of the surfacing layer. The results show that Fe content in the surfacing layer decreases with the decrease of the heat input, but the delamination occurs when the heat input is low.When the heat input is the same, the Fe content in the surfacing layer is obviously reduced by 2.06% after the water cooling process is adopted. The welding current for the first and second layers is 175 A and 185 A respectively, the wire feeding speed is 1.3 mm/min and 1.5 mm/min, the welding voltage is 14.5 V, the welding speed is 250 mm/min, and the cooling method is water cooling. Scheme 4 is the optimal overlay welding process for L360QS-N06625 metallurgical bimetallic composite pipes. The composite pipes welded using this process have good overall performance, with an average rate of surfacing point corrosion of 0.148 1 g/m2 and an average rate of intergranular corrosion of 0.30 mm/a, meeting the design and usage requirements.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2023-09-06作者简介:邱蜀峰(1979—),男,四川蓬溪人,硕士,研究方向为油气集输。
更新日期/Last Update: 2024-02-01