Al-Cu-Mg-Ti quaternary active solder for high-volume-fraction cast aluminum-based composite material, and preparation method for Al-Cu-Mg-Ti quaternary active solder

An al-cu-mg-ti technology with high volume fraction, applied in welding/cutting media/materials, manufacturing tools, welding equipment, etc., can solve the problems affecting defilming and wetting of demelting elements, and achieve prolonged wetting Wetting reaction time, improvement of wettability and joint performance, effect of improved wettability

Inactive Publication Date: 2015-05-27
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome above-mentioned existing active brazing material because " small-scale substrate area " (below mm level, about 5~50 micron) surface oxide film is restricted by the existence of a large amount of ceramic phases and is difficult to crack, thereby influences melting element For the problem of film removal and wetting in the "small-scale matrix area", a high volume fraction Al-Cu-Mg-Ti quaternary active solder of cast aluminum matrix composite material and its preparation method are provided. The brazing filler metal can effectively improve the wettability of the brazing filler metal to the ceramic reinforcement phase and the small-scale matrix region at the same time during welding, the brazed joint has high shear strength, and the preparation method is simple

Method used

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  • Al-Cu-Mg-Ti quaternary active solder for high-volume-fraction cast aluminum-based composite material, and preparation method for Al-Cu-Mg-Ti quaternary active solder
  • Al-Cu-Mg-Ti quaternary active solder for high-volume-fraction cast aluminum-based composite material, and preparation method for Al-Cu-Mg-Ti quaternary active solder
  • Al-Cu-Mg-Ti quaternary active solder for high-volume-fraction cast aluminum-based composite material, and preparation method for Al-Cu-Mg-Ti quaternary active solder

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The preparation method of the Al-Cu-Mg-Ti quaternary active solder of the high volume fraction cast aluminum matrix composite material of the present invention comprises the following steps:

[0034] 1) Take a certain amount of Cu block, Al block, Mg block and Al-5Ti alloy, then remove the oil stain and oxide film on the surface of Cu block, Al block, Mg block and Al-5Ti alloy, clean it ultrasonically and dry it, and then Melting, and then naturally cooling to room temperature to obtain ingots, wherein the smelting is carried out under the protection of argon. The specific process of smelting is as follows: first place Cu block, Al block and Al-STi alloy in a crucible to heat and melt, after heat preservation Add Mg block and keep warm;

[0035] 2) Put the ingot obtained in step 1) into the container, fix the container on a rotating water-cooled copper roller, and then heat and melt the ingot in the container under the protection of argon, and pass the melted The ingot...

Embodiment 2

[0040] The preparation method of the Al-Cu-Mg-Ti quaternary active solder of the high volume fraction cast aluminum matrix composite material of the present invention comprises the following steps:

[0041] 1) Take a certain amount of Cu block, Al block, Mg block and Al-5Ti alloy, then remove the oil stain and oxide film on the surface of Cu block, Al block, Mg block and Al-5Ti alloy, clean it ultrasonically and dry it, and then Melting, and then naturally cooling to room temperature to obtain ingots, wherein the smelting is carried out under the protection of argon. The specific process of smelting is: first place Cu block, Al block and Al-5Ti alloy in a crucible to heat and melt, after heat preservation Add Mg block and keep warm;

[0042] 2) Put the ingot obtained in step 1) into the container, fix the container on a rotating water-cooled copper roller, and then heat and melt the ingot in the container under the protection of argon, and pass the melted The ingot is blown o...

Embodiment 3

[0047] The preparation method of the Al-Cu-Mg-Ti quaternary active solder of the high volume fraction cast aluminum matrix composite material of the present invention comprises the following steps:

[0048] 1) Take a certain amount of Cu block, Al block, Mg block and Al-5Ti alloy, then remove the oil stain and oxide film on the surface of Cu block, Al block, Mg block and Al-5Ti alloy, clean it ultrasonically and dry it, and then Melting, and then naturally cooling to room temperature to obtain ingots, wherein the smelting is carried out under the protection of argon. The specific process of smelting is: first place Cu block, Al block and Al-5Ti alloy in a crucible to heat and melt, after heat preservation Add Mg block and keep warm;

[0049] 2) Put the ingot obtained in step 1) into the container, fix the container on a rotating water-cooled copper roller, and then heat and melt the ingot in the container under the protection of argon, and pass the melted The ingot is blown o...

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Abstract

The invention discloses Al-Cu-Mg-Ti quaternary active solder for a high-volume-fraction cast aluminum-based composite material, and a preparation method for the Al-Cu-Mg-Ti quaternary active solder. The Al-Cu-Mg-Ti quaternary active solder for the high-volume-fraction cast aluminum-based composite material consists of a Cu element, an Mg element, a Ti element and an Al element, wherein the Al-Cu-Mg-Ti quaternary active solder for the high-volume-fraction cast aluminum-based composite material comprises 18 to 40 mass percent of Cu element, 0.5 to 10 mass percent of Mg element and 0.1 to 10 mass percent of Ti element. According to the Al-Cu-Mg-Ti quaternary active solder, the wettability of the solder for a ceramic-reinforced phase can be effectively improved during welding, the shear strength of a soldered joint is strong, and the preparation method is simple.

Description

technical field [0001] The invention relates to an aluminum-based active solder and a preparation method thereof, in particular to an Al-Cu-Mg-Ti quaternary active solder of high volume fraction cast aluminum-based composite material and a preparation method thereof. Background technique [0002] SiC particle reinforced aluminum matrix composites have poor weldability when using traditional fusion welding methods (TIG, MIG, laser welding, electron beam welding, etc.). The main problems are: due to the high temperature of the molten pool, the interface reaction between the SiC reinforced particles and the highly superheated Al liquid generates harmful Al 4 C 3 ; At the same time, the viscosity of the molten pool is high, and it is easy to produce pores; when adding welding wire, it is difficult to mix the welding wire and the base metal. Therefore, the SiC particle-reinforced aluminum matrix composite should be preferably welded by brazing or transition liquid phase diffusi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/24B23K35/40
CPCB23K35/286B23K35/40
Inventor 张贵锋陈博晋敏政
Owner XI AN JIAOTONG UNIV
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