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A welding method for 610u2l material spherical tank

A welding method and spherical tank technology are applied in welding equipment, welding accessories, arc welding equipment and other directions to achieve the effect of improving construction efficiency, improving the quality of transverse seam welding, and improving welding quality

Active Publication Date: 2017-10-13
CHINA NAT CHEM ENG NO 14 CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there is currently no welding method for 610U2L material spherical tanks to solve the welding problems encountered in the welding process of 610U2L material

Method used

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  • A welding method for 610u2l material spherical tank
  • A welding method for 610u2l material spherical tank
  • A welding method for 610u2l material spherical tank

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Experimental program
Comparison scheme
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Embodiment 1

[0040] Such as figure 1 As shown, a kind of welding method for 610U2L material spherical tank provided by the present invention comprises the following steps:

[0041] Step 1, performing groove treatment on the inside and outside of the welding edge of the spherical shell plate of the spherical tank;

[0042] Step 2, select the longitudinal seam welding method or the transverse seam welding method according to the distribution direction of the weld seam;

[0043] Step 3, selecting the welding rod according to the welding rod selection standard, and drying the welding rod;

[0044] Step 4, welding according to the welding process and the selected welding method;

[0045] Among them, welding process requirements include:

[0046] a. Welding environment requirements: the weather requires non-rainy and snowy weather; the wind speed is required to be lower than 5m / s; the ambient temperature is required to be above 0°C; the relative humidity is required to be below 80%;

[0047]...

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PUM

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Abstract

The invention discloses a welding method for spherical tanks of the material 610U2L. The welding method comprises the steps of 1), carrying out groove treatment on the inner sides and the outer sides of the welding edges of spherical shell plates of the spherical tanks; 2), selecting the longitudinal seam welding method or the transverse seam welding method according to the distribution directions of welding seams; 3), selecting a welding electrode according to the selection standard of the welding electrode and drying the welding electrode; 4), carrying out welding according to the welding process and the selected welding method, wherein the welding process comprises the welding environment requirements, preheating before welding, interlayer temperature control and the hydrogen removal treatment after heating. According to the welding method, the spherical tanks of the material 610U2L can be welded, and the application prospect is good.

Description

technical field [0001] The invention relates to a welding method, in particular to a welding method for spherical tanks made of 610U2L material. Background technique [0002] With the development of the petrochemical industry, large-scale chemical equipment, and more and more spherical tanks containing low-temperature media. Choosing the right material is the basis for ensuring the safety of the spherical tank. The selection principle of spherical shell plate materials is to meet high strength, but also to ensure good formability, excellent welding performance, sufficient notch toughness and long-term reliable performance. [0003] In recent years, a kind of JFE-HITEN610U2L steel produced in Japan has been introduced into China for the manufacture of spherical storage tanks with harsh operating conditions. This steel not only has excellent low-temperature toughness, but also has good weldability, and the mechanical properties of welded joints are high. In 2003, this steel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/013B23K9/02B23K9/235B23K9/32
CPCB23K9/013B23K9/02B23K9/235B23K9/32
Inventor 丁中清耿进杰王彬
Owner CHINA NAT CHEM ENG NO 14 CONSTR