Angle welding process for automatic submerged-arc welding and welding tool used thereby

A submerged arc automatic welding and welding tooling technology, which is applied in welding equipment, welding equipment, arc welding equipment, etc., can solve the problems that it is difficult to meet the angle requirements of the grooved bulkhead, it is difficult to prevent welding deformation, and the amount of tooling materials is large. , to achieve the effect of good surface forming effect, less welding labor intensity and improved production efficiency

Active Publication Date: 2019-09-20
CHENGXI SHIPYARD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the welding of ship structure, submerged arc welding is used for flat butt joint in the past, and cannot be used for fillet welding of ships, especially grooved bulkheads. In terms of ship structure welding, fillet welding can only be used for ship-shaped welding, but for groove Type bulkhead requires tooling to support the workpiece into a V shape, which requires high

Method used

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  • Angle welding process for automatic submerged-arc welding and welding tool used thereby
  • Angle welding process for automatic submerged-arc welding and welding tool used thereby
  • Angle welding process for automatic submerged-arc welding and welding tool used thereby

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Experimental program
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Effect test

Embodiment 1

[0025] Such as Figure 1 to Figure 6 as shown ( image 3 The dotted line corresponds to the schematic diagram of steps S4 and S5), the present invention is a submerged arc automatic fillet welding process, comprising the following process steps:

[0026] S1: First place the bottom plate 1 of the three wall plates of the corrugated bulkhead on the tire frame made of angle steel 2, and then place several pairs of welding templates 3 arranged in pairs on the tire frame. The templates 3 are arranged symmetrically and two of each pair are respectively located on the left side of the left side wall 4 and the right side of the right side wall 5, and then the bottom plate 1, the left side wall 4 and the right side wall 5 are assembled together ;

[0027]S2: Hoist the assembled corrugated bulkhead and turn over to the position where the left side wall 4 or right side wall 5 is located below, and place the corrugated bulkhead on the lower left side wall 4 or right side wall 5 placed ...

Embodiment 2

[0034] The only difference from Embodiment 1 is that the angle between the left side wall plate and the bottom plate is 115°.

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PUM

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Abstract

The invention discloses an angle welding process for automatic submerged-arc welding. The angle welding process comprises the following technological steps: lifting and turning an assembled corrugated bulkhead; and performing flat fillet welding by an automatic submerged-arc welding machine. During assembly and welding, an assembly tool and a welding tool are respectively arranged to guarantee an included angle between wall plates of the corrugated bulkhead and to prevent welding deformation. The submerged-arc welding and flat fillet welding are adopted for the large-sized corrugated bulkhead, the welding penetration and bath entry are facilitated. The number of weld passes is effectively reduced. The surface molding effect is excellent. A ship is low in welding deformation. The welding labor intensity of a welder is greatly reduced. The repairing and grinding workload of weld joints is greatly reduced. The manual cost is cut. The consumption of a weld material is low. The production efficiency is greatly improved.

Description

technical field [0001] The invention relates to a submerged arc automatic fillet welding process and welding tooling used. Background technique [0002] The cargo hold of the sawdust ship has a large volume and deep shape, and the grooved bulkhead is in the form of full penetration fillet welding, which requires a large workload and labor-intensive welding operations; the thickness of the board of the 64000DWT wood chip ship’s grooved bulkhead is 21.5-25mm, and all The fillet welds are all carbon dioxide gas shielded welding. At present, the fillet welds are all manual. A fillet weld on site takes 40 minutes. It belongs to multi-layer multi-pass welding. The diameter of the manual welding wire is 1.2mm, and it takes about 11 passes; The welding deformation is large; the welder's welding labor intensity is high, the repair and grinding workload of the weld seam is also large, the labor cost is high, the consumption of welding materials is still high, and the production effici...

Claims

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Application Information

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IPC IPC(8): B23K9/18B23K37/04B23K31/00
CPCB23K9/18B23K31/003B23K37/0426
Inventor 夏东良刘志刚唐锋徐记龙
Owner CHENGXI SHIPYARD
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