High-tenacity high-hardness flux-cored wire

A technology of flux-cored welding wire with high hardness, which is applied in the direction of welding medium, welding equipment, welding/cutting medium/material, etc., and can solve the problems of hardness of ductile welded joints, low corrosion resistance, failure of surfacing alloys to meet the use requirements, chemical Unreasonable composition ratio and other problems, achieve the effect of reasonable chemical composition ratio, good toughness and hardness, and reduce construction cost

Active Publication Date: 2016-11-23
天长市瑞颖焊材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the repair of wear-resistant parts is mainly welded by wear-resistant surfacing welding flux-cored welding wire. At present, the chemical composition ratio of wear-resistant surfacing welding flux-...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A flux-cored welding wire with good toughness and high hardness, which is composed of a low-carbon cold-rolled steel strip with a flux core wrapped in an outer skin. The raw materials of the flux core include, by weight, 30 parts of high-carbon ferrochrome, 15 parts of metal chromium, and 11.3 parts of rare earth fluoride. 2.8 parts of calcium carbonate, 1 part of ferromolybdenum, 4 parts of ferrovanadium, 6-1 parts of cobalt powder, 6 parts of electrolytic manganese, 1 part of graphite, 10 parts of nickel-chromium alloy, 0.5 parts of tungsten powder, 8 parts of alumina, diboride 9 parts of titanium powder, 8 parts of low-silicon iron, 1 part of feldspar, 2 parts of magnesia, and 100 parts of iron powder.

Embodiment 2

[0018] A flux-cored welding wire with good toughness and high hardness, which is composed of a low-carbon cold-rolled steel strip with a flux core wrapped in an outer skin. The raw materials of the flux core include, by weight, 40 parts of high-carbon ferrochrome, 5 parts of metal chromium, and 25 parts of rare earth fluoride. 1 part of calcium carbonate, 4 parts of ferromolybdenum, 1 part of ferrovanadium, 10 parts of cobalt powder, 2 parts of electrolytic manganese, 1.8 parts of graphite, 6 parts of nickel-chromium alloy, 1.5 parts of tungsten powder, 2 parts of alumina, titanium diboride powder 14 parts, 6 parts of low silicon iron, 5 parts of feldspar, 1 part of magnesia, 180 parts of iron powder.

Embodiment 3

[0020] A flux-cored welding wire with good toughness and high hardness, which is composed of a low-carbon cold-rolled steel strip covered with a flux core. Raw materials for the flux core include, by weight, 33-3 parts of high-carbon ferrochromium, 711 parts of metallic chromium, and 17 parts of rare earth fluoride. 2 parts of calcium carbonate, 2-3 parts of ferromolybdenum, 33.8 parts of ferrovanadium, 7-parts of cobalt powder, 4.8 parts of electrolytic manganese, 1.2 parts of graphite, 9 parts of nickel-chromium alloy, 1.1 parts of tungsten powder, 5 parts of alumina , 10 parts of titanium diboride powder, 7.5 parts of low-silicon iron, 2 parts of feldspar, 1.8 parts of magnesia, and 120 parts of iron powder.

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PUM

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Abstract

The invention discloses a high-tenacity high-hardness flux-cored wire. The high-tenacity high-hardness flux-cored wire is formed by wrapping a low-carbon cold-rolled steel strip sheath around the outer side of a flux core. The flux core comprises the raw materials including, by weight, 30-40 parts of high-carbon ferrochrome, 5-15 parts of chrome, 11-25 parts of rare earth fluoride, 1-2.8 parts of calcium carbonate, 1-4 parts of ferromolybdenum, 1-4 parts of ferrovanadium, 6-10 parts of cobalt powder, 2-6 parts of electrolytic manganese, 1-1.8 parts of graphite, 6-10 parts of nickel-chromium alloy, 0.5-1.5 parts of tungsten powder, 2-8 parts of aluminum oxide, 9-14 parts of titanium diboride powder, 6-8 parts of low-silicon iron, 1-5 parts of feldspar, 1-2 parts of magnesite and 100-180 parts of iron powder. The high-tenacity high-hardness flux-cored wire is reasonable in chemical component ratio and high in tenacity and corrosion resistance, and the hardness of a welded joint is high.

Description

technical field [0001] The invention relates to the technical field of flux-cored welding wire, in particular to a flux-cored welding wire with good toughness and high hardness. Background technique [0002] Surfacing welding is an economical and fast process for material surface modification, which can effectively change the wear resistance, corrosion resistance and other mechanical properties of the material surface, and is beneficial to improving the service life of parts, rational use of materials, and improvement of product performance. , Cost reduction has a significant effect, and it is more and more widely used in the manufacture and repair of mechanical parts. The welding quality and welding efficiency are determined by the welding material and welding process, especially the welding material is the key to welding, the surfacing material is an important factor affecting the wear resistance of the surfacing alloy, and the production efficiency of the flux-cored wire ...

Claims

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Application Information

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IPC IPC(8): B23K35/368
CPCB23K35/368
Inventor 卢齐元
Owner 天长市瑞颖焊材有限公司
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