Oblique position plumb electric welding method

A welding method and tilting position technology, applied in welding equipment, arc welding equipment, manufacturing tools, etc., can solve the problems of low welding efficiency and achieve the effects of improved welding efficiency, faster flow speed, and guaranteed welding efficiency

Active Publication Date: 2017-08-15
GUANGZHOU SHIPYARD INTERNATIONAL LTD
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Problems solved by technology

[0006] The purpose of the present invention is to propose a vertical gas-electric welding welding method with an inclined position, whi

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  • Oblique position plumb electric welding method
  • Oblique position plumb electric welding method
  • Oblique position plumb electric welding method

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[0025] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be further described below with reference to the drawings and specific implementations.

[0026] Such as Figure 1-4 As shown, this embodiment provides a vertical gas electric welding method at an inclined position, which includes the following steps:

[0027] (1) Perform local surface treatment on both sides of the bevel of the steel plate to be welded 1 inclined to the horizontal plane, and remove rust, moisture and oil;

[0028] (2) Paste gasket 2 on the back of steel plate 1 to be welded;

[0029] (3) Use CO 2 As a shielding gas, the welding gun releases the welding wire 4 inside the groove of the steel plate 1 to be welded for welding, so that the molten metal pool fills the entire groove, and uses the gasket 2 on the back of the groove and the water-cooled copper slide on the same side of the welding wire....

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Abstract

The invention relates to the technical field of ship welding, in particular to an oblique position plumb electric welding method. The method comprises the following steps that the two sides of a groove of a to-be-welded steel plate which is arranged obliquely relative to the horizontal plane are subjected to local surface treatment, and rust, moisture and oil stains are removed; a liner is attached to the back side of the to-be-welded steel plate; CO2 serves as protective gas, a welding gun releases welding wires to the inside the groove of the to-be-welded steel plate so that welding can be conducted, the whole groove is filled with a liquid metallic molten pool, and forced cooling molding is conducted on a weld joint through the liner on the back side of the groove and a water cooling copper sliding block located on the same side of the welding wires; and the angle of the welding wires is perpendicular to the horizontal plane, and the included angle beta between the welding wires and the to-be-welded steel plate is 15-45 degrees. According to the welding mode, the groove at the bottom can be automatically filled by the liquid molten welding wires under the action of gravity, the welding firmness is improved, the angle between the welding wires and the to-be-welded steel plate is 15-45 degrees, the liquid molten welding wires can be assisted in flowing in the groove, the flowing speed is high, and the welding efficiency is further improved.

Description

technical field [0001] The invention relates to the technical field of ship welding, in particular to a vertical gas-electric welding method in an inclined position. Background technique [0002] In the shipbuilding industry, vertical gas electric welding is a welding process that can be welded on one side and formed on both sides. The weld seam is formed at one time, and the welding efficiency is extremely high. It is widely used in the pre-loading and loading stages of ships. The inclination angle of weldable seams ranges from 75° to 90°, and some weld seams have an inclination angle of 45° to 75° during the pre-loading and loading stages. These welds cannot be used for vertical gas-electric welding at present, and only semi-automatic or automatic CO welding can be used. 2 Gas shielded welding or multi-layer multi-pass automatic welding for welding. [0003] But using semi-automatic or automatic CO 2 There are many welding layers during gas shielded welding, and the weld...

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Application Information

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IPC IPC(8): B23K9/173
CPCB23K9/173
Inventor 刘博冀海俊马金军罗坚黎剑新
Owner GUANGZHOU SHIPYARD INTERNATIONAL LTD
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