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Welding material composition for soft liner single-face submerged arc automatic welding

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, long procurement cycle, low impact toughness, etc., and achieve cost reduction, Improved productivity and stable welding arc

Active Publication Date: 2017-12-26
SHANGHAI JIANGNAN CHANGXING SHIPBUILDING
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  • 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 soft liner single-face submerged arc automatic welding
  • Welding material composition for soft liner single-face submerged arc automatic welding
  • Welding material composition for soft liner single-face submerged arc automatic welding

Examples

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Embodiment 1

[0033] like 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,

[0034] 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 ;

[0035] 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;

[0036]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.

[0037] ...

Embodiment 2

[0046] like 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,

[0047] 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 ;

[0048] 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;

[0049] 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.

[0...

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Abstract

The invention discloses a welding material composition for soft liner single-face submerged arc automatic welding. A welding stick in the composition comprises components including, by mass percent, 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. A surface welding agent comprises components including, by mass percent, 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. Filling powder comprises components including, by mass percent, 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 means of the welding material composition, the production efficiency is improved by 3-5 times, and cost is reduced by 50%-60% compared with the cost of imported similar welding materials.

Description

technical field [0001] 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 [0002] 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 factors, this method has disadvantages such as high labor intensity, many hours of work, and poor quality and reliability. At the same time, due to the increase of the thickness of the plate and the length of the seam of the panel, the w...

Claims

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Application Information

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IPC IPC(8): B23K35/30B23K9/18B23K9/235
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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