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Welding material composition for flux adhesive fiberglass backing (FAB)

A submerged arc automatic welding and welding material technology, applied in the direction of welding/cutting medium/material, welding medium, welding equipment, etc., can solve the problems of untimely after-sales service, low impact toughness, long procurement cycle, etc., and achieve cost reduction, Stable welding arc and improved productivity

Active Publication Date: 2018-06-12
SHANGHAI JIANGNAN CHANGXING SHIPBUILDING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no welding material matching FAB technology in China, and Japan and South Korea have been monopolizing the domestic market
For domestic shipyards, there are many problems in using imported FAB welding consumables: first, the price is very high; second, the procurement cycle is long; third, after-sales service is not timely, etc.
In terms of process performance, the existing imported FAB welding consumables have low impact toughness when welding high-strength hull structural steel

Method used

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  • Welding material composition for flux adhesive fiberglass backing (FAB)
  • Welding material composition for flux adhesive fiberglass backing (FAB)
  • Welding material composition for flux adhesive fiberglass backing (FAB)

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Such as figure 1 As shown, this embodiment is used for the welding material composition of soft cushion single-sided submerged arc automatic welding, and the composition includes the following components: welding wire, surface flux and filler powder, and the gap between the welding wire, surface flux and filler powder The mass ratio is: 1:1.5:1.5,

[0035] The mass percentages of each component in the welding wire are: C is 0.15%, Si is 0.03%, Mn is 2.2%, Cr+Ni is 0.1%, S is 0.012%, P is 0.012%, and the balance is Fe powder ;

[0036] The mass percentages of each component in the surface flux are: SiO 2 18%, MgO 30%, TiO 2 10%, Al 2 o 3 19%, CaO 18%, S 0.018%, P 0.018%, H 2 O is 0.03%, impurity is 0.15%, and the balance is Fe powder;

[0037] The mass percentages of each component in the filling powder are respectively: 0.008% for C, 0.05% for Si, 1.3% for Mn, 2.6% for Ni, 0.3% for Mo, 0.021% for S, 0.021% for P, and 0.021% for P. The amount is Fe powder.

[0038...

Embodiment 2

[0047] Such as figure 1 As shown, this embodiment is used for the welding material composition of soft cushion single-sided submerged arc automatic welding, and the composition includes the following components: welding wire, surface flux and filler powder, and the gap between the welding wire, surface flux and filler powder The mass ratio is: 1.1:1.5:1.6,

[0048] The mass percentages of the components in the welding wire are: 0.12% for C, 0.01% for Si, 1.98% for Mn, 0.3% for Cr+Ni, 0.018% for S, 0.018% for P, and the balance is Fe powder ;

[0049] The mass percentages of each component in the surface flux are: SiO 2 14%, MgO 22%, TiO 2 12%, Al 2 o 3 16%, CaO 12%, S 0.012%, P 0.012%, H 2 O is 0.02%, impurities are 0.2%, and the balance is Fe powder;

[0050] The mass percentages of each component in the filling powder are respectively: C is 0.004%, Si is 0.05%, Mn is 1.5%, Ni is 2.5%, Mo is 0.9%, S is 0.023%, P is 0.023%, and the remaining The amount is Fe powder.

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Abstract

The invention discloses a welding material composition for flux adhesive fiberglass backing (FAB). The welding material composition comprises a welding wire, a surface welding flux and filler powder.The welding wire comprises 0.08%-0.17% of C, 0.01%-0.04% of Si, 1.0%-2.5% of Mn, 0.1%-0.5% of Cr+Ni, 0.010%-0.025% of S, 0.010%-0.025% of P, and the balance Fe powder. The surface welding flux comprises 10%-20% of SiO2, 15%-35% of MgO, 5%-15% of TiO2, 7%-20% of Al2O3, 5%-20% of CaO, 0.01%-0.04% of S, 0.01%-0.04% of P, 0.01%-0.1% of H2O, 0.1%-0.2% of impurities and the balance Fe powder. The fillerpowder comprises 0.004%-0.01% of C, 0.01%-0.4% of Si, 1.0%-2.5% of Mn, 2.0%-5.0% of Ni, 0.2%-1.0% of Mo, 0.02%-0.04% of S, 0.02%-0.04% of P and the balance Fe powder. By adoption of the welding material composition, production efficiency can be improved by 3-5 times, and the cost is reduced by 50%-60% compared with that of imported welding materials of the same kind.

Description

[0001] The application of the present invention is a divisional application of the invention patent 201710833254.5 "A Welding Material Composition for Single-sided Submerged Arc Automatic Welding of Soft Lining" dated September 15, 2017 technical field [0002] The invention belongs to the field of high-efficiency welding in shipbuilding, and in particular relates to a welding material composition for single-side submerged arc automatic welding of soft cushions, especially a combination of welding materials for submerged arc automatic welding comprising welding wire, surface flux and filling powder thing. Background technique [0003] With the increase of the tonnage of ships, a large number of segmented construction methods are used in hull construction. In the past, the splicing of ship boards mostly used CO 2 Gas shielded welding is referred to as FCAW (Flux Cored Arc Welding) to complete. Due to the influence of welder skills, welding materials and performance and other...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30B23K35/362B23K9/18B23K9/235
CPCB23K9/186B23K9/235B23K35/0261B23K35/3073B23K35/3602B23K35/362
Inventor 刘磊许承熙鞠国文隋毅陈忠德朱未
Owner SHANGHAI JIANGNAN CHANGXING SHIPBUILDING
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