Wear-resisting and high-hardness flux core wire

A flux-cored wire, high-hardness technology, applied in the direction of welding medium, welding equipment, welding/cutting medium/material, etc., can solve the problem of small pores and cracks in deposited metal, unreasonable configuration of flux-cored wire components, wear resistance, Corrosion and hardness need to be improved to achieve the effect of preventing cracking, reducing porosity sensitivity, and improving overall mechanical properties

Inactive Publication Date: 2017-10-17
天长市通联焊业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The welding quality and welding efficiency are determined by the welding material and welding process, especially the welding material is the key to welding. At present, the composition of the flux-cored welding wire is unreasonable, resulting in small pores and cracks in the deposited metal. At the same time, it needs to be improved in terms of wear resistance, corrosion resistance and hardness.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The wear-resistant and high-hardness flux-cored welding wire proposed by the present invention is composed of a flux core and a low-carbon cold-rolled steel strip sheath coated on the outside of the flux core. , 3 parts of titanium powder, 1 part of nickel powder, 8 parts of silicon calcium alloy, 2 parts of magnesium aluminum alloy, 5 parts of electrolytic manganese, 1 part of ferromolybdenum, 4 parts of ferroniobium, 1 part of ferrovanadium, 5 parts of rare earth iron alloy, carbonic acid 3 parts of salt, 4 parts of graphite, 120 parts of iron powder, 1.5 parts of tungsten powder, and 2 parts of calcium fluoride.

Embodiment 2

[0017] The wear-resistant and high-hardness flux-cored welding wire proposed by the present invention is composed of a flux core and a low-carbon cold-rolled steel strip sheath coated on the outside of the flux core. , 1.5 parts titanium powder, 2 parts nickel powder, 5 parts silicon calcium alloy, 4 parts magnesium aluminum alloy, 3 parts electrolytic manganese, 2 parts iron molybdenum, 2.5 parts iron niobium, 2 parts iron vanadium, 3 parts rare earth iron alloy, carbonic acid 5 parts of salt, 3 parts of graphite, 150 parts of iron powder, 0.5 parts of tungsten powder, and 4 parts of calcium fluoride.

Embodiment 3

[0019] The wear-resistant and high-hardness flux-cored welding wire proposed by the present invention is composed of a flux core and a low-carbon cold-rolled steel strip sheath covered on the outside of the flux core. , 2.2 parts of titanium powder, 1.5 parts of nickel powder, 6.8 parts of silicon calcium alloy, 3.2 parts of magnesium aluminum alloy, 4.1 parts of electrolytic manganese, 1.6 parts of molybdenum iron, 3.2 parts of iron niobium, 1.4 parts of iron vanadium, 4.2 parts of rare earth iron alloy, carbonic acid 4.1 parts of salt, 3.4 parts of graphite, 135 parts of iron powder, 1.1 parts of tungsten powder, 3.1 parts of calcium fluoride.

[0020] Wherein, the carbonate is the mixture that calcium carbonate and barium carbonate are formed by weight ratio of 1:1;

[0021] The components of the rare earth iron alloy include: Gd: 10%, Pr: 16%, Ce: 26.5%, and the rest are Fe;

[0022] The molybdenum element content in the ferromolybdenum is 45wt%;

[0023] The content of ...

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PUM

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Abstract

The invention discloses a wear-resisting and high-hardness flux core wire. The wear-resisting and high-hardness flux core wire is composed of a flux core and a low-carbon cold-rolling steel tape sheath wrapped on the outer side of the flux core. The flux core comprises, by weight, 20-25 parts of low-carbon ferrochromium, 1.5-3 parts of titanium powder, 1-2 parts of nickel powder, 5-8 parts of calcium-silicon alloys, 2-4 parts of magnesium-aluminum alloys, 3-5 parts of electrolytic manganese, 1-2 parts of ferromolybdenum, 2.5-4 parts of ferroniobium, 1-2 parts of ferrovanadium, 3-5 parts of rare earth iron alloys, 3-5 parts of carbonate, 3-4 parts of graphite, 120-150 parts of iron powder, 0.5-1.5 parts of tungsten powder and 2-4 parts of calcium fluoride. The wear-resisting and high-hardness flux core wire has good welding performance, deposited metal tissue is compact, air holes and cracks are avoided, combination with base metal is good, performance is stable, and deposited metal has good wear resistance, corrosion resistance, high hardness and other performance.

Description

technical field [0001] The invention relates to the technical field of welding wires, in particular to a wear-resistant and high-hardness flux-cored welding wire. Background technique [0002] As a common metal welding material, flux-cored welding wire is widely used in aerospace, automobile manufacturing, construction, bridge, petrochemical and other fields. The quality of welding and the level of welding efficiency are determined by the welding material and welding process, especially the welding material is the key to welding. At present, the composition of the flux-cored welding wire is still unreasonable, resulting in small pores and cracks in the deposited metal. At the same time, there is still room for improvement in wear resistance, corrosion resistance and hardness. SUMMARY OF THE INVENTION [0003] Based on the technical problems existing in the background technology, the present invention proposes a wear-resistant and high-hardness flux-cored welding wire, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30
CPCB23K35/3086
Inventor 卢齐元
Owner 天长市通联焊业有限公司
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