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An alkaline all-position co 2 Gas shielded flux cored wire

A flux-cored welding wire, all-position technology, applied in the direction of welding equipment, welding medium, welding/cutting medium/material, etc., can solve the problems of no strength results, etc., and achieve the effects of small spatter, improved efficiency, and good weld bead formation

Active Publication Date: 2022-02-01
KUSN GINTUNE WELDING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the impact temperature of the toughness tested is 0°C, and there is no strength result, and the gas used in the test is only 80% Ar+20% CO 2

Method used

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  • An alkaline all-position co <sub>2</sub> Gas shielded flux cored wire
  • An alkaline all-position co <sub>2</sub> Gas shielded flux cored wire

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Embodiment Construction

[0029] The technical solutions of the present invention will be further described below in conjunction with specific examples, but the present invention is not limited to these examples.

[0030] The present invention is composed of a steel strip and a drug core, and the drug core is wrapped in the steel strip, and the steel strip components (% by weight) are shown in Table 1.

[0031] Table 1

[0032] C Si mn Al 0.010-0.030 0.01-0.03 0.10-0.30 0.005～0.035 P S Fe 0.005-0.010 0.005-0.010 margin

[0033]The weight percentages of the components in the steel strip and the flux core are as follows: aluminum 1.2%-2.0%, magnesium 0.45%-0.7%, manganese 1.05%-1.4%, silicon 0.18%-0.28%, nickel 1.95%-2.40%, Molybdenum 0.45%-0.55%, carbon 0.035%-0.058%, aluminum magnesium oxide 0.7%-1.3%, manganese iron silicon oxide 0.5%-1%, barium fluoride 2.8%-3.8%, lithium fluoride 0.65%- 1.05%, sodium and potassium less than 0.065%, rare metal yttrium, lant...

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Abstract

The invention discloses an alkaline all-position CO 2 Gas shielded flux cored wire. Each composition of the drug core contains aluminum, magnesium, manganese, silicon, nickel, molybdenum, carbon, aluminum magnesium oxide, manganese ferrosilicon oxide, barium fluoride, lithium fluoride, sodium and potassium, rare metal yttrium, lanthanum, cerium alloy , and the rest is iron and other unavoidable impurities. When the welding wire of the present invention is welded in all positions, it will not produce defects such as incomplete fusion, slag inclusions, pores, etc., the weld bead is well formed, and there is less spatter during welding, and the tensile strength of the entire weld in the flat welding position can reach 760MPa, Charpy The impact test can reach 69J at -60°C.

Description

technical field [0001] The invention belongs to the field of welding materials, in particular to an alkaline slag-based all-position CO 2 Gas shielded flux cored wire. Background technique [0002] Basic flux-cored wire has been unable to compare with rutile slag-based welding wire in terms of operability, especially in all-position applications. Rutile slag-based welding wire has stable arc, stable droplet transfer, small spatter, and better weld bead formation. However, most rutile flux-cored wires cannot meet the requirements of weld tensile strength greater than 760MPa and low-temperature impact greater than 69J at -60°C. The basic welding wire mainly based on lime and calcium fluoride slag is in the flat welding position, and the mixed gas (15%-25%CO 2 / other argon) shielded welding, the mechanical properties of the weld can meet the above requirements, but it cannot be welded in other positions. Although some basic welding wires mainly based on lime and calcium flu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/02B23K35/30B23K35/36
CPCB23K35/0266B23K35/3066B23K35/3601
Inventor 周峙宏庄石城林祐禾
Owner KUSN GINTUNE WELDING
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