Flux for narrow-gap submerged arc welding

A narrow gap and welding buried technology, applied in arc welding equipment, welding medium, welding equipment and other directions, can solve the problems of good effect and low cost, and achieve the effect of good welding quality, high production efficiency and low comprehensive cost.

Active Publication Date: 2015-03-04
TIANJIN GOLDEN BRIDGE WELDING MATERIALS GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no good formulation of narrow gap welding submerged arc flux at present, which has low cost and good effect.

Method used

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  • Flux for narrow-gap submerged arc welding

Examples

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Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1 Each portion is calculated according to 10kg

[0021] Example 1:

[0022] A submerged arc flux for narrow gap welding, the sintered flux components are composed of calcined α-type aluminum oxide, fluorite, coarse magnesia, fine magnesia, silica mud, wollastonite, barium fluoride, metal manganese and ferrosilicon Composition, the parts by weight of the formula components are: 10 parts of calcined α-type aluminum oxide, 20 parts of fluorite, 15 parts of coarse magnesia, 15 parts of fine magnesia, 15 parts of bauxite, 15 parts of wollastonite , 1 part of rutile, 8 parts of manganese metal, and 1 part of ferrosilicon.

Embodiment 2

[0024] A submerged arc flux for narrow gap welding, the sintered flux components are composed of calcined α-type aluminum oxide, fluorite, coarse magnesia, fine magnesia, silica mud, wollastonite, barium fluoride, metal manganese and ferrosilicon Composition, the parts by weight of the formula components are: 13 parts of calcined α-type aluminum oxide, 24 parts of fluorite, 17 parts of coarse magnesia, 12 parts of fine magnesia, 10 parts of bauxite, 15 parts of wollastonite , 2 parts of rutile, 6 parts of manganese metal, and 1 part of ferrosilicon.

Embodiment 3

[0026] A submerged arc flux for narrow gap welding, the sintered flux components are composed of calcined α-type aluminum oxide, fluorite, coarse magnesia, fine magnesia, silica mud, wollastonite, barium fluoride, metal manganese and ferrosilicon Composition, the parts by weight of the formula components are: 15 parts of calcined α-type aluminum oxide, 28 parts of fluorite, 20 parts of coarse magnesia, 15 parts of fine magnesia, 10 parts of bauxite, 5 parts of wollastonite , 3 parts of rutile, 1 part of manganese metal, and 3 parts of ferrosilicon.

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PUM

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Abstract

The invention discloses a flux for narrow-gap submerged arc welding. The flux consists of the following raw materials in part by weight: 10 to 30 parts of calcined alpha aluminium oxide, 20 to 45 parts of fluorite, 15 to 30 parts of coarse magnesia, 10 to 25 parts of fine magnesia, 10 to 25 parts of bauxite, 5 to 15 parts of wollastonite, 1 to 15 parts of rutile, 1 to 10 parts of manganese metal and 1 to 10 parts of silicon iron. The flux has the beneficial effects that 1, the flux has the characteristics of high production efficiency, low composite cost, good welding quality and the like; 2, the problem of a narrow gap in submerged arc welding is solved, the flux has good welding technological properties and mechanical properties, a weld beam is formed attractively, and slag is easy to detach.

Description

technical field [0001] The invention belongs to the field of welding materials, in particular to a submerged arc welding flux for narrow gap welding. Background technique [0002] With the large-scale and high-parameterization of modern industry, the application of thick plate and ultra-thick plate welded metal structures is becoming more and more extensive, and the performance requirements of welds are also getting higher and higher. Narrow gap welding technology has begun to be applied in the industrial field. The traditional thick plate welding method is not only difficult to open the bevel, the welding speed is slow, and the plate stress after welding is very large. Submerged arc welding is the most widely used automatic welding method. It has the advantages of large welding parameters and high welding efficiency. However, when welding narrow gaps, the weld bead is easy to stick to slag. Compared with traditional welding technology, narrow gap welding has the characteri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/362B23K9/02B23K9/18
CPCB23K9/02B23K9/18B23K35/362
Inventor 陈洋田国锋
Owner TIANJIN GOLDEN BRIDGE WELDING MATERIALS GRP
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