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Aluminium alloy welding wire and preparation method thereof

A technology of aluminum alloy welding wire and raw materials, applied in welding equipment, metal processing equipment, welding media, etc., can solve problems such as being vulnerable to fuel impact, welding damage, safety hazards, etc., to increase service life and refine grains , the effect of avoiding potential safety hazards

Inactive Publication Date: 2017-10-17
安徽飞弧焊业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The lighter the weight of the car, the less fuel it consumes. Since fuel is a non-renewable resource, in order to save resources and reduce fuel consumption, the requirements for lightness of the car are getting higher and higher. Using an aluminum alloy fuel tank instead of a steel fuel tank can reduce The weight of the car, but because the fuel tank is soaked in fuel for a long time, it is vulnerable to the impact of fuel, especially the welds, which are more likely to be impacted and cracked, resulting in damage to the welds, oil leakage, and potential safety hazards

Method used

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  • Aluminium alloy welding wire and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] An aluminum alloy welding wire, its raw materials include: Mg: 5.9%, Mn: 0.65%, Ti: 0.19%, Re: 0.15%, B: 0.013%, Fe: 0.15%, Cr: 0.35%, Si: 0.3%, Zr: 0.2%, Ce: 0.12%, Er: 0.2%, Cu≤0.1%, Zn≤0.2%, individual content of other impurity elements≤0.05%, total content of other impurity elements≤0.1%, the balance is Al .

[0016] The preparation method of the above-mentioned aluminum alloy welding wire includes the following steps: melting the aluminum ingot, adding the remaining raw materials for smelting, refining, and casting to obtain a round ingot satisfying the above-mentioned composition range; homogenizing, extruding, annealing, and drawing the round ingot Aluminum alloy welding wire was obtained through processing.

Embodiment 2

[0018] An aluminum alloy welding wire, its raw materials include: Mg: 5.8%, Mn: 0.7%, Ti: 0.18%, Re: 0.2%, B: 0.005%, Fe: 0.2%, Cr: 0.4%, Si: 0.25%, Zr: 0.25%, Ce: 0.1%, Er: 0.25%, Cu≤0.1%, Zn≤0.2%, individual content of other impurity elements≤0.05%, total content of other impurity elements≤0.1%, the balance is Al .

[0019] The preparation method of the above-mentioned aluminum alloy welding wire includes the following steps: melting the aluminum ingot, adding the remaining raw materials for smelting, refining, and casting to obtain a round ingot satisfying the above-mentioned composition range; homogenizing, extruding, annealing, and drawing the round ingot Aluminum alloy welding wire was obtained through processing, wherein the homogenization temperature was 490°C, the homogenization temperature was 24h, the extrusion temperature was 460°C, the extrusion ratio was 45, the annealing temperature was 440°C, and the annealing time was 2h.

Embodiment 3

[0021] An aluminum alloy welding wire, its raw materials include: Mg: 6%, Mn: 0.6%, Ti: 0.2%, Re: 0.1%, B: 0.02%, Fe: 0.1%, Cr: 0.3%, Si: 0.35%, Zr: 0.15%, Ce: 0.15%, Er: 0.15%, Cu≤0.1%, Zn≤0.2%, individual content of other impurity elements≤0.05%, total content of other impurity elements≤0.1%, the balance is Al .

[0022] The preparation method of the above-mentioned aluminum alloy welding wire includes the following steps: melting the aluminum ingot, adding the remaining raw materials for smelting, refining, and casting to obtain a round ingot satisfying the above-mentioned composition range; homogenizing, extruding, annealing, and drawing the round ingot Aluminum alloy welding wire was obtained by processing, wherein the homogenization temperature was 470°C, the homogenization temperature was 48h, the extrusion temperature was 440°C, the extrusion ratio was 55, the annealing temperature was 400°C, and the annealing time was 3h.

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Abstract

The invention discloses an aluminium alloy welding wire. The aluminium alloy welding wire comprises the following raw materials in percentage by weight: 5.8-6% of Mg, 0.6-0.7% of Mn, 0.18-0.2% of Ti, 0.1-0.2% of Re, 0.005-0.02% of B, 0.1-0.2% of Fe, 0.3-0.4% of Cr, 0.25-0.35% of Si, 0.15-0.25% of Zr, 0.1-0.15% of Ce, 0.15-0.25% of Er, not greater than 0.1% of Cu, not greater than 0.2% of Zn, other impurities elements and the balance Al, wherein the content of each of the other impurities elements is not greater than 0.05%, and the total content of the other impurities elements is not greater than 0.1%. The invention further discloses a preparation method of the aluminium alloy welding wire. A welding joint disclosed by the invention is high in tensile strength and toughness, and not liable to crack.

Description

technical field [0001] The invention relates to the technical field of welding wire, in particular to an aluminum alloy welding wire and a preparation method thereof. Background technique [0002] The lighter the weight of the car, the less fuel it consumes. Since fuel is a non-renewable resource, in order to save resources and reduce fuel consumption, the requirements for lightness of the car are getting higher and higher. Using an aluminum alloy fuel tank instead of a steel fuel tank can reduce The weight of the car, but because the fuel tank is soaked in fuel for a long time, it is vulnerable to the impact of fuel, especially the welds, which are more likely to be impacted and cracked, resulting in damage to the welds, oil leakage, and potential safety hazards. Contents of the invention [0003] Based on the technical problems in the background technology, the present invention proposes an aluminum alloy welding wire and a preparation method thereof. The welded joint of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/28B23K35/40
CPCB23K35/288B23K35/40
Inventor 卢齐元
Owner 安徽飞弧焊业股份有限公司
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