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High-performance seamless flux-cored wire for copper and aluminum containing rare earth elements and manufacturing method of high-performance seamless flux-cored wire

A technology of seamless flux-cored welding wire and rare earth elements, which is used in manufacturing tools, welding equipment, welding media, etc., can solve the problems of capillary fusion of strength welding materials, general performance, and unsatisfactory plasticity, so as to improve plasticity and toughness, The effect of increasing strength

Pending Publication Date: 2022-07-26
JINHUA SHUANGHUAN BRAZING ALLOYS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the flux-cored welding wire made of seamless pipe material, especially the welding between copper and aluminum or the two same metals, has attracted much attention as a new material. The main application scenarios are cemented carbide tools, drilling bits, Bicycle frames, heat exchangers, conduits and various containers, etc., also include the welding between copper tubes and aluminum tubes in household appliances. Although the current copper-aluminum flux-cored wire is a new type of material, it is not strong enough to be well matched with The capillary fusion and plasticity between welding materials are not ideal, and the overall performance is average. When welding brazing materials, fluxes need to be used to protect and prevent oxidation reactions. There are already technologies on the market that add fluxes to welding wires. However, this material is usually a powder structure, which cannot be well and uniformly filled into the tube body

Method used

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  • High-performance seamless flux-cored wire for copper and aluminum containing rare earth elements and manufacturing method of high-performance seamless flux-cored wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A seamless flux-cored welding wire for high-performance copper-aluminum containing rare earth elements, comprising the following components by weight:

[0021] Aluminum 1.9%, copper 0.2%, silver 2.3%, samarium 0.05%, cerium 0.05%, lanthanum 0.01%, europium 0.02%, gallium 0.02%, aluminum silicon alloy 0.6%, titanium alloy 0.1%, flux 18%, the rest are Zinc and inevitable impurities.

[0022] The total mass of cesium fluoroaluminate and potassium fluoroaluminate is calculated as 10, and the ratio thereof is cesium fluoroaluminate:potassium fluoroaluminate=8:2. The titanium alloy is a nickel-titanium alloy.

Embodiment 2

[0024] A seamless flux-cored welding wire for high-performance copper-aluminum containing rare earth elements, comprising the following components by weight:

[0025] Aluminum 2.2%, copper 0.5%, silver 2%, samarium 0.08%, cerium 0.05%, lanthanum 0.02%, europium 0.02%, gallium 0.02%, aluminum silicon alloy 0.8%, titanium alloy 0.1%, flux 23%, the rest are Zinc and inevitable impurities.

[0026] The total mass of cesium fluoroaluminate and potassium fluoroaluminate is calculated as 10, and the ratio thereof is cesium fluoroaluminate:potassium fluoroaluminate=9:1. The titanium alloy is a nickel-titanium alloy.

Embodiment 3

[0028] A seamless flux-cored welding wire for high-performance copper-aluminum containing rare earth elements, comprising the following components by weight:

[0029] Aluminum 2%, copper 0.3%, silver 2.1%, samarium 0.08%, cerium 0.05%, lanthanum 0.03%, europium 0.03%, gallium 0.02%, aluminum silicon alloy 1.1%, titanium alloy 0.1%, flux 20%, the rest are Zinc and inevitable impurities.

[0030] The flux is all cesium fluoroaluminate, and the titanium alloy is nickel-titanium alloy.

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Abstract

The invention discloses a high-performance seamless flux-cored wire for copper and aluminum containing rare earth elements and a manufacturing method of the high-performance seamless flux-cored wire. The high-performance seamless flux-cored wire comprises, by weight, 1.2%-2.5% of aluminum, 0.2%-0.5% of copper, 1.5%-2.8% of silver, 0.05%-0.1% of samarium, 0.05%-0.1% of cerium, 0.01%-0.05% of lanthanum, 0.01%-0.05% of europium, 0.01%-0.05% of gallium, 0.5%-1.3% of aluminum-silicon alloy, 0.1%-0.2% of titanium alloy, 12%-25% of scaling powder and the balance zinc and inevitable impurities. Compared with a common product on the market, the flux has the characteristics of high strength, good plasticity, low melting point and convenience and uniformity in flux filling.

Description

technical field [0001] The invention relates to the field of brazing, in particular to a rare earth element-containing high-performance copper-aluminum seamless flux-cored welding wire and a manufacturing method thereof. Background technique [0002] Brazing refers to a welding method in which the filler metal and the weldment below the melting point of the weldment are heated to the melting temperature of the filler metal at the same time, and then the liquid filler metal is used to fill the gap of the solid workpiece to connect the metals. During brazing, the oxide film and oil stains on the contact surface of the base metal should be removed first, so that the capillary can play a role after the brazing filler metal is melted and increase the wettability and capillary fluidity of the brazing filler metal. The seamless flux-cored welding wire is a relatively common high-performance welding material in brazing materials. It is generally made of metal materials filled with p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/28B23K35/02
CPCB23K35/282B23K35/0266
Inventor 蒋俊懿陈向荣王晶章伟勇章建军
Owner JINHUA SHUANGHUAN BRAZING ALLOYS
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