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Structural container and welding method thereof

A welding method and container technology, applied to containers, rigid containers, welding equipment, etc., can solve problems such as poor anti-leakage effect, and achieve the effects of eliminating hardened structure, avoiding leakage, and eliminating welding internal stress.

Active Publication Date: 2012-11-21
ZOOMLION HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to provide a structural container and its welding method to solve the problem of poor anti-leakage effect in the prior art

Method used

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  • Structural container and welding method thereof
  • Structural container and welding method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Using CO 2 Gas-shielded welding two horizontal butt steel plates were flat-welded to form a weld, and then part of the weld was reformed by tungsten argon arc welding under the condition of a welding current of 190A. The results are as follows figure 1 shown. From figure 1 It can be seen from the figure that the appearance of the reformed weld seam is gentle, smooth and uniform, and the texture of the weld seam is delicate.

Embodiment 2

[0036] Using CO 2 Gas-shielded welding performed T-shaped joint flat fillet welding on two steel plates to form a weld seam, and then part of the weld seam was reformed by argon tungsten arc welding at a welding current of 150A. The results are as follows figure 2 shown. From figure 2 It can be seen from the figure that the appearance of the reformed weld seam is gentle, smooth and uniform, and the texture of the weld seam is delicate.

Embodiment 3

[0038] The high-strength steel structure fuel tank was welded by argon-enriched gas shielded welding, and then the weld seam of the fuel tank was reformed by argon tungsten arc welding, and then the fuel tank was tested for leaks by kerosene penetration inspection method, and no leaks were found.

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PUM

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Abstract

The invention provides a structural container and a welding method of the structural container. The welding method comprises the following steps: S1, welding components which form the structural container for the first time, forming a welding line; and S2, sealing up and reforming the welding line by using a non-melt electrode inter gas shielded welding technology. By employing the welding method disclosed by the invention, a welding line layer which is about 3mm on a surface layer of the structural container is re-melted to form a uniform and compact welding line layer with a good sealing performance, so as to prevent leakage of the welding line; in addition, the surface layer of the welding line is treated by high-temperature re-melting so as to be equivalent to a temper bead of an inner layer welding bead, so that the surface layer of the welding line can play roles in eliminating welding internal stress, dehydrogenating and removing hardening tissues for the inner layer welding bead, in this way, generation of delayed crack can be eliminated or reduced, and leakage of the welding line can be avoided; meanwhile, the welding method effectively avoids leakage of the welding line, therefore, the welding method can avoid leakage checking progress after first-time welding and second-time welding, and manufacturing process of the structural container is further simplified.

Description

technical field [0001] The invention relates to the field of mechanical manufacturing, in particular to a structural container and a welding method thereof. Background technique [0002] In order to optimize the layout of the whole machine, simplify the space structure and save costs, various mechanical products such as construction machinery, concrete machinery, and road machinery often integrate hydraulic oil tanks, diesel tanks, water tanks, etc. with the main structure, and use components organically and rationally. Confined space, such as pump truck chassis, crane counterweight, road roller vibrating wheel, etc. At present, such structural parts are mainly welded by manual arc welding or gas metal arc welding. Due to the complicated welding of these components, the anti-leakage performance of weld seams is often affected by the welding space position, welding environment, welding conditions, welder skills, and welder quality. , Welding materials, etc., inevitably produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/167B65D6/28
Inventor 覃文亮
Owner ZOOMLION HEAVY IND CO LTD