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Aluminum alloy welding process

A welding process and aluminum alloy technology, which is applied in the direction of welding medium, welding equipment, welding equipment, etc., can solve the problems of affecting the quality of aluminum alloy welding products, shortening the service life, and welding defects, so as to reduce cleaning costs and pollution, reduce Creation of stomata, ease of handling

Inactive Publication Date: 2017-06-13
玉林博飞商贸有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the aluminum alloy is not cleaned of oil or other impurities on the surface before welding, welding defects may occur, the strength will decrease, and the service life will be shortened
There is no obvious color change when the aluminum alloy changes from solid to liquid, so it brings a lot of difficulties to the operator during the welding process and is prone to incomplete penetration defects
On the other hand, the liquid molten pool of aluminum alloy is easy to absorb gas, dissolves a large amount of hydrogen at high temperature, and has no time to escape during cooling and solidification after welding, and condenses in the weld to form pores, which affects the quality of aluminum alloy welding products

Method used

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  • Aluminum alloy welding process

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Effect test

Embodiment 1

[0026] A welding process for aluminum alloys, comprising the steps of:

[0027] (1) Put the welding area on the surface of the aluminum alloy plate to be welded into a cleaning solution, the cleaning solution is mainly made of the following raw materials in parts by weight: 10 parts of acetone, 5 parts of ethylene glycol butyl ester, 5 parts of boric acid, phosphoric acid 8 parts of trisodium and 50 parts of deionized water; Ultrasonic cleaning was carried out at a temperature of 25°C, the ultrasonic cleaning time was 2min, and the frequency was 20kHz, and then dried in a vacuum drying oven, the drying temperature was controlled at 90°C, and the time 20min;

[0028] (2) Heating the welding area of ​​the aluminum alloy plate to be welded to 150°C for preheating;

[0029] (3) Heating the welding area of ​​the aluminum alloy plate to be welded to 750°C, spraying a degasser on the welding area of ​​the aluminum alloy plate, the degasser is mainly made of the following raw materia...

Embodiment 2

[0034] A welding process for aluminum alloys, comprising the steps of:

[0035] (1) Put the welding area on the surface of the aluminum alloy plate to be welded into a cleaning solution, the cleaning solution is mainly made of the following raw materials in parts by weight: 15 parts of acetone, 12 parts of ethylene glycol butyl ester, 10 parts of boric acid, phosphoric acid 15 parts of trisodium and 80 parts of deionized water; ultrasonic cleaning was carried out at a temperature of 55 ° C, the ultrasonic cleaning time was 6 min, and the frequency was 26 kHz, and then dried in a vacuum drying oven, the drying temperature was controlled at 150 ° C, and the time 35min;

[0036] (2) Heating the welding area of ​​the aluminum alloy plate to be welded to 200°C for preheating;

[0037](3) Heating the welding area of ​​the aluminum alloy plate to be welded to 830°C, spraying a degasser on the welding area of ​​the aluminum alloy plate, the degasser is mainly made of the following ra...

Embodiment 3

[0042] A welding process for aluminum alloys, comprising the steps of:

[0043] (1) Put the welding area on the surface of the aluminum alloy plate to be welded into a cleaning solution, the cleaning solution is mainly made of the following raw materials in parts by weight: 10 parts of acetone, 5 parts of ethylene glycol butyl ester, 5 parts of boric acid, phosphoric acid 8 parts of trisodium and 50 parts of deionized water; ultrasonic cleaning was carried out at a temperature of 25°C, the ultrasonic cleaning time was 2min, and the frequency was 20kHz, and then dried in a vacuum drying oven, the drying temperature was controlled at 90°C, and the time 20min;

[0044] (2) Heating the welding area of ​​the aluminum alloy plate to be welded to 150°C for preheating;

[0045] (3) Heating the welding area of ​​the aluminum alloy plate to be welded to 750°C, spraying a degasser on the welding area of ​​the aluminum alloy plate, the degasser is mainly made of the following raw materia...

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Abstract

The invention discloses an aluminum alloy welding process and belongs to the technical field of metal welding. The aluminum alloy welding process comprises the following steps: (1) a welding area of the surface of an aluminum alloy plate is put into a cleaning fluid for ultrasonic cleaning and then dried; (2) the welding area of the to-be-welded aluminum alloy plate is heated to 150-200 DEG C; (3) the welding area of the to-be-welded aluminum alloy plate is heated to 750-830 DEG C, a degasifier is sprayed to the welding area of the aluminum alloy plate, and the aluminum alloy plate is welded with a special aluminum alloy welding wire; (4) the welded part of the aluminum alloy plate is subjected to solid solution at the temperature of 300-450 DEG C, and the aluminum alloy plate is subjected to degasification treatment through ultrasonic waves; (5) the welded part of the aluminum alloy plate after solid solution treatment is transferred to cold water and cooled to the room temperature; (6) clearing and removal of welding powder or slag are performed. With the adoption of the aluminum alloy welding process, the pore problem can be effectively solved, and incomplete fusion, incomplete penetration and cracking phenomena are unlikely to occur.

Description

technical field [0001] The invention belongs to the technical field of metal welding, and in particular relates to an aluminum alloy welding process. Background technique [0002] Aluminum alloy is the most widely used metal structural material in industry, and has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. With the rapid development of science and technology and industrial economy in recent years, the demand for welded structural parts is increasing, and the research on the weldability of aluminum alloys is also in-depth. The wide application of aluminum alloy has promoted the development of aluminum alloy welding technology, and the development of welding technology has expanded the application field of aluminum alloy, so the welding technology of aluminum alloy is becoming one of the hot spots of research. [0003] Due to its unique physical properties, aluminum alloy will bring a series of difficulti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/173B23K9/235B23K35/28B23K103/10
CPCB23K9/173B23K9/235B23K35/0261B23K35/286B23K2103/10
Inventor 陈剑飞
Owner 玉林博飞商贸有限公司
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