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Matching welding consumables for fgb method high-efficiency submerged arc welding

A technology of submerged arc welding and welding materials, applied in welding/cutting medium/material, welding equipment, welding medium and other directions, can solve the problems of inability to turn the workpiece over construction, reach 3Y level, etc. Good process performance, avoiding the effect of thick slag

Active Publication Date: 2018-12-28
武汉天高熔接股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the splicing construction of ship decks and curved panels, bridge steel structure bridge decks, or other similar steel structure panel construction operations, the workpiece cannot usually be turned over for construction, and most of them are completed by single-sided welding and double-sided forming technology. The current High-efficiency welding with large-wire energy is similar to FCB method (submerged arc welding flux copper backing), etc., and its general performance can only reach 3Y level.

Method used

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  • Matching welding consumables for fgb method high-efficiency submerged arc welding
  • Matching welding consumables for fgb method high-efficiency submerged arc welding
  • Matching welding consumables for fgb method high-efficiency submerged arc welding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The invention provides a matching welding material for high-efficiency submerged arc welding of FGB method, including submerged arc welding wire, sintering flux, alloy powder and ceramic liner:

[0029] The sintered flux comprises the following raw materials in parts by weight: 33 parts of MgO, 6 parts of CaO, 10 parts of CaF 2 , 22 Al 2 o 3 , 25 parts of SiO 2 , 2 copies of K 2 O, 1 part of Na 2 O and 1 part of CeO;

[0030] The alloy powder includes the following raw materials in parts by weight: 96 parts of Fe, 2 parts of Mn, 0.5 part of TiFe, 0.5 part of SiFe, 0.5 part of Ni and 0.5 part of Mo;

[0031] The ceramic liner includes the following raw materials in parts by weight: 57 parts of Al 2 o 3 , 5 parts of MgO, 34 parts of SiO 2 and 4 copies of K 2 O.

[0032]During the welding process, the single power supply double wire submerged arc welding machine of ZD5(D)-1250 produced by Weida manufacturer is selected, and the EH36 material steel plate is select...

Embodiment 2

[0035] The invention provides a matching welding material for high-efficiency submerged arc welding of FGB method, including submerged arc welding wire, sintering flux, alloy powder and ceramic liner:

[0036] The sintered flux includes the following raw materials in parts by weight: 30 parts of MgO, 5 parts of CaO, 20 parts of CaF 2 , 20 Al 2 o 3 , 20 parts of SiO 2 , 2 copies of K 2 O, 2 parts of Na 2 O and 1 part of CeO;

[0037] The alloy powder includes the following raw materials in parts by weight: 96.2 parts of Fe, 2 parts of Mn, 0.5 parts of TiFe, 1 part of SiFe, 0.2 parts of Ni and 0.1 part of Mo;

[0038] The ceramic liner comprises the following raw materials in parts by weight: 50 parts of Al 2 o 3 , 6 parts of MgO, 39 parts of SiO 2 and 5 copies of K 2 O.

[0039] During the welding process, the single power supply double wire submerged arc welding machine of ZD5(D)-1250 produced by Weida manufacturer is selected, and the EH36 material steel plate is se...

Embodiment 3

[0041] The invention provides a matching welding material for high-efficiency submerged arc welding of FGB method, including submerged arc welding wire, sintering flux, alloy powder and ceramic liner:

[0042] The sintered flux includes the following raw materials in parts by weight: 35 parts of MgO, 4 parts of CaO, 15.5 parts of CaF 2 , 18 Al 2 o 3 , 22 parts of SiO 2 , 1 copy of K 2 O, 4 parts of Na 2 O and 0.5 part of CeO;

[0043] The alloy powder includes the following raw materials in parts by weight: 95 parts of Fe, 3 parts of Mn, 0.5 parts of TiFe, 0.5 parts of SiFe, 0.5 parts of Ni and 0.5 parts of Mo;

[0044] The ceramic liner comprises the following raw materials in parts by weight: 55 parts of Al 2 o 3 , 4 parts of MgO, 35 parts of SiO 2 and 6 copies of K 2 O.

[0045] During the welding process, the single power supply double wire submerged arc welding machine of ZD5(D)-1250 produced by Weida manufacturer is selected, and the EH36 material steel plate i...

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Abstract

The invention discloses an FGB method efficient submerged-arc welding mating welding material. Sintered flux comprises raw materials, by weight, 25-35 parts of MgO, 2-6 parts of CaO, 10-20 parts of CaF2, 15-25 parts of Al2O3, 15-25 parts of SiO2, 0-2 parts of K2O, 0-4 parts of Na2O and 0-1 part of CeO; alloy powder comprises raw materials, by weight, 95-100 parts of Fe, 0-4 parts of Mn, 0-1 part of TiFe, 0-1 part of SiFe, 0-0.5 part of Ni and 0-0.5 part of Mo; and a ceramic liner comprises raw materials, by weight, 40-60 parts of Al2O3, 4-8 parts of MgO, 30-40 parts of SiO2 and 2-8 parts of K2O. According to the mating welding material, special raw materials are used, reasonable matching is achieved, the FGB method process welding requirement can be met, the mechanical property can achieve the 4Y-stage level, and the good process performance is achieved.

Description

technical field [0001] The invention relates to the field of welding materials. More specifically, the present invention relates to a matching welding material for FGB high-efficiency submerged arc welding. Background technique [0002] Submerged arc welding is a welding method in which an arc burns under a layer of flux. Traditional submerged arc welding materials are usually submerged arc welding wire matching sintered flux welding, and can be used in general, similar to SJ101 products. In the splicing construction of ship decks and curved panels, bridge steel structure bridge decks, or other similar steel structure panel construction operations, the workpiece cannot usually be turned over for construction, and most of them are completed by single-sided welding and double-sided forming technology. The current The high-efficiency welding of large-wire energy is similar to the FCB method (submerged arc welding flux copper backing), etc., and the general performance can onl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/18B23K35/30B23K35/36B23K35/362B23K9/035
CPCB23K9/035B23K9/188B23K35/3073B23K35/3602B23K35/362
Inventor 屠涛雄汪小根李华胡文喜易武强
Owner 武汉天高熔接股份有限公司
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