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Multimaterial joint material including flame-retardant magnesium alloy layer

A metal material and heterogeneous technology, applied in the direction of welding/cutting media/materials, metal layered products, welding equipment, etc., can solve the problems of plate thickness limitation, difference in joint structure, and inability to obtain sufficient strength, etc.

Active Publication Date: 2019-11-15
ASAHI KASEI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when magnesium and dissimilar metal materials are joined, there is a problem that due to the difference in the optimum joining conditions due to the difference in physical properties, there are defects in the joining part, and sufficient strength cannot be obtained. There are many problems such as differences in the structure of the produced joint due to the direction of tool movement, and restrictions on the thickness of the plate that can be joined.
However, there is no description of an example of a flame-retardant magnesium alloy that has a large difference in physical properties from pure magnesium in terms of elongation and strength, and there is no description of its use as a joint of a joined body.

Method used

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  • Multimaterial joint material including flame-retardant magnesium alloy layer
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  • Multimaterial joint material including flame-retardant magnesium alloy layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] A dissimilar joint material obtained by joining plate-shaped flame-retardant magnesium alloy AZX611 and aluminum alloy A6N01-T5 by explosive crimping. A ceramic material is used as the substrate. The plate thicknesses were AZX611: 10 mm and A6N01-T5: 4 mm. Observation with an optical microscope confirmed good bonding without cracking or peeling at the bonding interface, and the results of the ultrasonic flaw detection test showed that it was full-surface bonding. The thickness of the transition layer is 72μm, and the shear strength of the bonding interface is 141N / mm 2 (83%).

Embodiment 2

[0082] A dissimilar joint material obtained by joining plate-shaped flame-retardant magnesium alloy AZX611 and aluminum alloy A6N01-T5 by explosive crimping. A ceramic material is used as the substrate. The plate thicknesses were AZX611: 4 mm and A6N01-T5: 4 mm. Observation with an optical microscope confirmed good bonding without cracking or peeling at the bonding interface, and the results of the ultrasonic flaw detection test showed that it was full-surface bonding. The thickness of the transition layer is 79.3μm, and the shear strength of the bonding interface is 147N / mm 2 (88%).

Embodiment 3

[0084] A dissimilar joint material obtained by bonding plate-shaped flame-retardant magnesium alloy AZX611 and stainless steel SUS304 by explosive crimping. Use a resin board as a base. The respective plate thicknesses were AZX611: 4mm and SUS304: 1.5mm. Observation with an optical microscope confirmed good bonding without cracking or peeling at the bonding interface, and the results of the ultrasonic flaw detection test showed that it was full-surface bonding. The thickness of the transition layer is 24μm, and the shear strength of the bonding interface is 125N / mm 2 (75%).

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Abstract

Provided is a multimaterial joint material that contributes to multimaterialization and a reduction in weight of a transport apparatus, the multimaterial joint material being configured from: a flame-retardant magnesium alloy; and a metal or alloy selected from the group consisting of aluminum alloys, titanium alloys, stainless steel, and steel. This multimaterial joint material is such that two or more layers of different types of metal materials are joined, wherein the multimaterial joint material is characterized in that: of the two or more layers of metal materials, at least one layer comprises a flame-retardant magnesium alloy, and another layer comprises a metal or alloy selected from the group consisting of aluminum alloys, titanium alloys, stainless steel, and steel; and the two ormore layers of metal materials are joined together across the entire surface of joining surfaces that overlap each other.

Description

technical field [0001] The present invention relates to a dissimilar joint material in which two or more layers of dissimilar metal materials are joined, at least one layer of which is composed of a flame-retardant magnesium alloy. Background technique [0002] In transportation equipment, such as aircraft, rail vehicles, automobiles, etc., the demand for lightweight materials is increasing to improve fuel efficiency through light weight. In particular, light-weight materials are being pursued to be multi-materials that can be used appropriately according to their characteristics. [0003] Among lightweight materials, magnesium is expected to be used as a structure (structure. A part bearing the strength of a vehicle body) of transportation equipment due to its light weight. In particular, flame-retardant magnesium alloys, for example, alloys in which the heat resistance of magnesium alloys are improved by adding calcium are expected to be applied to structures of railway v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/00B23K20/08B32B15/01B32B15/18
CPCB23K20/00B23K20/08B32B15/01B32B15/18B23K20/24B23K20/227B23K20/233B23K20/2336B23K2103/18B23K2103/04B23K2103/05B23K2103/10B23K2103/14B23K2103/15B23K35/284B23K35/286
Inventor 花野嘉纪大塚诚彦
Owner ASAHI KASEI KK