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Anti-corrosion aluminum alloy brazing filler metal and preparation method thereof

A corrosion-resistant aluminum alloy and brazing material technology, which is applied in metal processing equipment, manufacturing tools, welding equipment, etc., can solve the problems of complex equipment, large welding heat input, corrosion of welding interface, etc., and achieve simple operation and low cost , strong corrosion resistance effect

Active Publication Date: 2013-08-28
CIXI YIMEIJIA ALUMINUM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with heat-treatable and strengthened aluminum alloys, anti-rust aluminum has good weldability. During the welding process, a series of difficulties will be encountered, such as weld thermal cracks, oxidation and pores, and corrosion at the welding interface. For the welding of aluminum alloys, traditional methods Mainly fusion welding, the equipment is complicated, and the welding heat input is large, which may easily cause defects such as weld thermal cracks

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: the preparation method of this corrosion-resistant aluminum alloy solder comprises the following steps:

[0027] (1) Preparation of mother ingot:

[0028] silicon

0.9%

copper

20%

chrome

1.1%

zinc

1.0%

Cesium

1.3%

[0029] Antimony

1.5%

magnesium

0.3%

[0030] The balance is aluminum.

[0031] Mix the components according to the above components and proportions, put them into a vacuum induction melting furnace, pump the vacuum to 6.0×10-3Pa, fill in 0.1MPa nitrogen for induction melting, and pour into the furnace after repeated melting for 5 to 10 times In the inner iron mold, a mother ingot with uniform composition is obtained;

[0032] (2) Sonar cleaning:

[0033] The granules obtained by crushing the mother ingot obtained in step (1), after removing the scale, place them in acetone for ultrasonic cleaning;

[0034] (3) Solder molding:

[0035] Put the mo...

Embodiment 2

[0036] Embodiment 2: the preparation method of this corrosion-resistant aluminum alloy solder comprises the following steps:

[0037] (1) Preparation of mother ingot:

[0038] silicon

0.7%

copper

25%

chrome

0.9%

zinc

1.3%

[0039] Cesium

0.8%

Antimony

1.8%

magnesium

0.1%

[0040] The balance is aluminum.

[0041] Mix the components according to the above components and proportions, put them into a vacuum induction melting furnace, pump the vacuum to 6.0×10-3Pa, fill in 0.1MPa nitrogen for induction melting, and pour into the furnace after repeated melting for 5 to 10 times In the inner iron mold, a mother ingot with uniform composition is obtained;

[0042] (2) Sonar cleaning:

[0043] The granules obtained by crushing the mother ingot obtained in step (1), after removing the scale, place them in acetone for ultrasonic cleaning;

[0044] (3) Solder molding:

[0045] Put the mo...

Embodiment 3

[0046] Embodiment 3: the preparation method of this corrosion-resistant aluminum alloy solder comprises the following steps:

[0047] (1) Preparation of mother ingot:

[0048] silicon

0.8%

copper

23%

chrome

1.0%

[0049] zinc

1.2%

Cesium

1.1%

Antimony

1.6%

magnesium

0.2%

[0050] The balance is aluminum.

[0051] Mix the components according to the above components and proportions, put them into a vacuum induction melting furnace, pump the vacuum to 6.0×10-3Pa, fill in 0.1MPa nitrogen for induction melting, and pour into the furnace after repeated melting for 5 to 10 times In the inner iron mold, a mother ingot with uniform composition is obtained;

[0052] (2) Sonar cleaning:

[0053] The granules obtained by crushing the mother ingot obtained in step (1), after removing the scale, place them in acetone for ultrasonic cleaning;

[0054] (3) Solder molding:

[0055] Put the mo...

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PUM

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Abstract

The invention relates to anti-corrosion aluminum alloy brazing filler metal. Compared with heat-treatable reinforced aluminum alloy, anti-corrosion aluminum is good in welding performance while a serial of difficulties such as weld joint hot cracks, oxidation and pores and weld interface corrosion can happen in the process of welding. Components of main materials and auxiliary materials and ranges of weight percentages of the components in the anti-corrosion aluminum alloy brazing filler metal are as follows: 0.7-0.9% of silicon, 20-25% of copper, 0.9-1.1% of chromium, 1.0-1.3% of zinc, 0.8-1.3% of cesium, 1.5-1,8% of stibium, 0.1-0.3% of magnesium, and the allowance is aluminum. The invention further relates to a preparation method of the anti-corrosion aluminum alloy brazing filler metal. According to the anti-corrosion aluminum alloy brazing filler metal and the preparation method of the anti-corrosion aluminum alloy brazing filler metal, the preparation method is easy to operate, manufacturing cost is low, and manufactured aluminum ingots are high in anti-corrosion performance and can be widely used as basic materials in an aluminum extrusion industry and an aluminum pouring industry.

Description

technical field [0001] The invention relates to a corrosion-resistant aluminum alloy solder and a preparation method thereof. Background technique [0002] Aluminum alloy has the advantages of high specific strength and corrosion resistance, and has been widely used in industries such as automobiles, ships, petrochemicals, and aerospace. Aluminum alloy welding mainly refers to the welding of deformed aluminum alloys. Deformed aluminum alloys are divided into non-heat-treatable aluminum alloys and heat-treatable aluminum alloys. Among them, non-heat-treatable aluminum alloys are the main aluminum alloys used for welding structures. Compared with heat-treatable and strengthened aluminum alloys, anti-rust aluminum has good weldability. During the welding process, a series of difficulties will be encountered, such as weld thermal cracks, oxidation and pores, and corrosion at the welding interface. For the welding of aluminum alloys, traditional methods It is mainly based on fus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/28B23K35/40
Inventor 罗其达
Owner CIXI YIMEIJIA ALUMINUM CO LTD