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Medium-thickness steel plate splicing back-gouging-free welding technology

A welding process, root-free technology, applied in welding equipment, manufacturing tools, arc welding equipment, etc., can solve the problems of unfavorable energy saving and emission reduction of employees' physical and mental health, smoke and dust pollution, low work efficiency, etc. The effect of health, energy saving and welding efficiency improvement

Inactive Publication Date: 2018-11-13
SHANDONG ELECTRIC POWER CONSTR NO 2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing welding operation has low efficiency and high cost, and the smoke pollutes the environment, which is not conducive to energy saving and emission reduction and the physical and mental health of employees.

Method used

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  • Medium-thickness steel plate splicing back-gouging-free welding technology

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Embodiment Construction

[0030] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention provides a medium-thickness steel plate splicing back-gouging-free welding technology, and relates to the technical field of steel structure engineering. The medium-thickness steel platesplicing back-gouging-free welding technology comprises the steps that groove preparation is conducted on steel plates, and grooves of the steel plates are single-edge V-shaped grooves; 5-10-degree reversible deformation is reserved for the two steel plates according to the thickness of the steel plates; butt-joint spot welding is conducted on the two steel plates, and the spot welding thicknessis controlled to be above 5 mm; and submerged arc welding is conducted on the two steel plates, and the fully-penetrated electric welding thickness is guaranteed. According to the medium-thickness steel plate splicing back-gouging-free welding technology, a back gouging technology is omitted, the operation environment can be improved, noise is reduced, environmental protecting and energy source saving are achieved, and physical and psychological health of staff are facilitated.

Description

technical field [0001] The invention relates to the technical field of steel structure engineering, in particular to a splicing-free welding process for medium-thick steel plates. Background technique [0002] Medium and thick plate structures have been widely used in the fields of ship plates and shells, port machinery box girders, and sea-crossing bridge decks. The welding of medium and thick plates plays an important part in the production of steel structures, which directly affects product quality and quality. Productivity. [0003] Domestic nuclear power steel structures, heavy steel structure workshops, crane girders, high-rise steel structures of civil buildings, etc. all need to use the full penetration welding technology of spliced ​​welds of medium and thick steel plates. [0004] In the prior art, when welding medium and thick plates, it is necessary to turn over the two medium and thick plates after the front welding is completed, and then perform root cleaning,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/18B23K9/235
CPCB23K9/18B23K9/235
Inventor 王振民时明军张福旺王在伦窦建伟王峰岳恩国
Owner SHANDONG ELECTRIC POWER CONSTR NO 2
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