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Explosion welding method for composite material of aluminum-steel

A composite material, explosive welding technology, applied in welding equipment, explosives, non-electric welding equipment, etc., can solve the problems of product scrap, non-composite, poor quality of explosive composite, etc., to achieve the effect of convenient production, improved efficiency and high bonding strength

Active Publication Date: 2008-04-02
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the low melting point and low acoustic impedance of aluminum and aluminum alloy doubler plates, during explosive welding, especially when the thickness of the aluminum doubler plates is thick and the area is large, there will be poor explosive composite quality, low bonding strength at the far end, It is prone to phenomena such as excessive melting and delamination of the interface and non-recombination, resulting in product scrapping
Therefore, it is difficult to produce high-quality aluminum-steel composites by the usual explosive welding method

Method used

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  • Explosion welding method for composite material of aluminum-steel

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specific Embodiment approach 2

[0016] As shown in Figure 1: the base steel plate (6) and the clad aluminum plate (4) are polished with a grinding wheel or a polishing impeller to remove oxides on the metal surface to expose the metallic luster, and the base steel plate (6) is placed on the sand foundation (7 ), the clad aluminum plate (4) is placed on the base steel plate (6) through the support (5), the buffer protection layer (3) is pasted on the surface of the clad aluminum plate (4), and the explosive (2) is placed On the upper surface of the buffer protection layer (3), the explosive is an ammonium ladder explosive, which adopts a stepped gradient explosive distribution method, and the charge per unit area gradually decreases from the center of the plate surface to both ends, and is detonated by an industrial electric detonator (1). , aluminum-steel composites obtained by explosive welding.

[0017] Manufacture a piece of aluminum, aluminum alloy-steel composite material, the grade of the base steel pl...

specific Embodiment approach 3

[0018] As shown in Figure 1: the base steel plate (6) and the clad aluminum plate (4) are polished with a grinding wheel or a polishing impeller to remove oxides on the metal surface to expose the metallic luster, and the base steel plate (6) is placed on the sand foundation (7 ), the clad aluminum plate (4) is placed on the base steel plate (6) through the support (5), the buffer protection layer (3) is pasted on the surface of the clad aluminum plate (4), and the explosive (2) is placed On the upper surface of the buffer protection layer (3), the explosive is an ammonium ladder explosive, which adopts a stepped gradient explosive distribution method, and the charge per unit area gradually decreases from the center of the plate surface to both ends, and is detonated by an industrial electric detonator (1). , aluminum-steel composites obtained by explosive welding.

[0019] Manufacture a piece of aluminum, aluminum alloy-steel metal composite material, the grade of the base st...

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Abstract

The present invention discloses an explosion welding method with aluminum-steel composite materials; a double-layer aluminum plate (4) is arranged on a basic level steel plate (6) through a support (5); a buffer protecting layer is paved on the surface of the double-layer aluminum plate; an explosive (2) is placed on the surface of the buffer protecting layer in the way of stage gradient style, so that per unit area explosive capacity is stepped gradually decreased from the center of the double-layer aluminum plate to two ends; a large acreage of the aluminum - steel composite materials is gained through the explosion welding method; per unit area explosive capacity is stepped gradually decreased from the center of the double-layer aluminum plate to two ends; the material of the basic level steel plate is a carbon steel or a low alloy steel; the material of the double-layer aluminum plate is a pure aluminum or an aluminum alloy with less or equal to 0.1 percent of Mg. The explosion welding method of the present invention has the advantages of high intensity and equal strength in composite bonding, no excessive melting, delaminating, or non-compounding phenomenon at an interface, being capable of making thick double-layer aluminum plate composite materials through once explosion welding, convenient in production and higher in efficiency.

Description

technical field [0001] The invention belongs to the technical field of metal composite materials, and in particular relates to an explosive welding method of aluminum-steel composite materials. Background technique [0002] Explosive welding is a metal processing method that uses explosives as the energy source, and under the explosive load of explosives, the clad metal collides with the base metal at high speed, so that the clad metal and the base metal are firmly connected together. Aluminum, aluminum alloy-steel composite materials have broad application prospects in shipbuilding, metal smelting, rail transit, electric power and other industries. However, due to the low melting point and low acoustic impedance of aluminum and aluminum alloy doubler plates, during explosive welding, especially when the thickness of the aluminum doubler plates is thick and the area is large, there will be poor explosive composite quality, low bonding strength at the far end, It is prone to...

Claims

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Application Information

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IPC IPC(8): B23K20/08B23K20/22C06B31/38
Inventor 侯发臣辛宝岳宗洪
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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