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Preparation method of aluminum-steel composite material with welding and mechanical bonding interface and material

A composite material, aluminum-steel technology, applied in the field of aluminum-steel composite material preparation, can solve problems such as cracking, increased quality risk, and long technical route, and achieve the effect of expanding the bonding area, improving the bonding strength, and improving production efficiency

Pending Publication Date: 2022-08-05
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

This method has the disadvantages of long technical route and increased quality risk
In the actual application of ships, the cracking phenomenon of aluminum-steel joints on ships occurs from time to time, such as figure 2 As shown, it brings a large loss, and the cracking location is generally from the defects at the interface of pure aluminum-carbon steel.

Method used

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  • Preparation method of aluminum-steel composite material with welding and mechanical bonding interface and material
  • Preparation method of aluminum-steel composite material with welding and mechanical bonding interface and material
  • Preparation method of aluminum-steel composite material with welding and mechanical bonding interface and material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The present embodiment provides a method for preparing an aluminum-steel composite material with a welded and mechanically engaged interface, comprising the following steps:

[0052] Step S1: cutting and blanking the raw material sheet to prepare carbon steel sheet 1, pure aluminum sheet 2, and aluminum alloy sheet 7 respectively;

[0053] Step S2: preprocessing the composite surface of the carbon steel plate 1, the pure aluminum plate 2, and the aluminum alloy plate 7;

[0054] Step S3: prefabricating several mechanical engaging grooves 11 on the composite surface of the carbon steel plate 1;

[0055] Step S4: Using the carbon steel plate 1 as the base layer, the pure aluminum plate 2 as the intermediate layer, and the aluminum alloy plate 7 as the cladding layer, explosive welding is performed, and a three-layered aluminum-steel composite material is formed by one explosive welding.

[0056] In this embodiment, due to the existence of the mechanical meshing groove 11...

Embodiment 2

[0072] This embodiment provides a method for preparing an aluminum-steel composite material with a welded and mechanically engaged interface, which is used to produce an aluminum-steel composite material formed of D-grade steel, 1060 pure aluminum material and 5083 aluminum alloy. The required specifications of the composite material are is (20+4+10)×500×1000mm,

[0073] The specific production process includes the following steps:

[0074] Step S1: Cut out the 20mm thick marine carbon steel plate D grade steel that meets the GB / T 713 standard; the 4mm thick 1060 industrial pure aluminum plate that meets the GB / T 3880 standard; and the 10mm thick 5083 aluminum alloy plate that meets the GB / T 3880 standard. , the blanking specifications are: D grade steel 20×500×1000mm; 1060 pure aluminum plate 4×540×1040mm; 5083 aluminum alloy 10×540×1040mm;

[0075] Step S2: The surfaces of the three plates produced in step S1 are respectively mechanically ground and polished to a roughness ...

Embodiment 3

[0083] This embodiment provides an aluminum-steel composite material with a welded and mechanically engaged interface, using the method for preparing an aluminum-steel composite material with a welded and mechanically engaged interface as described in Embodiment 1 or Embodiment 2.

[0084] The aluminum-steel composite material with welding and mechanical engagement interfaces provided in this embodiment has the same advantages as the preparation method described in Embodiment 1 or Embodiment 2 over the prior art, which will not be repeated here.

[0085] It should be noted that all terms used for directional and positional indication in the present invention, such as: "up", "down", "left", "right", "front", "rear", "vertical", "horizontal" "," "inside", "outside", "top", "low", "tail end", "head end", "center", etc., are only used to explain the relative positions of various components in a particular state Relationships, connections, etc. are only for the convenience of descr...

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Abstract

The invention provides a preparation method of an aluminum-steel composite material with a welding and mechanical bonding interface and the material, and the method comprises the following steps: S1, cutting and blanking a raw material plate to respectively prepare a carbon steel plate, a pure aluminum plate and an aluminum alloy plate; s2, composite surfaces of the carbon steel plate, the pure aluminum plate and the aluminum alloy plate are pretreated; s3, prefabricating a plurality of mechanical meshing grooves in the composite surface of the carbon steel plate; and S4, the carbon steel plate serves as a base layer, the pure aluminum plate serves as a middle layer, the aluminum alloy plate serves as a composite layer, explosive welding is conducted, and the three-layer-layer-shaped aluminum steel composite material is formed through one-time explosive welding. The mechanical meshing groove is prefabricated in the surface of the carbon steel plate, and then the three-layer layered metal composite plate is prepared through one-time explosive welding, so that the bonding interface of the pure aluminum plate and the carbon steel plate has the characteristics of a mechanical meshing and explosive welding metallurgical bonding interface, and a double-reinforced connection structure of mechanical meshing and metallurgical fusion is formed; and meanwhile, the production efficiency of the aluminum-steel composite material is also improved.

Description

technical field [0001] The invention relates to the technical field of explosive welding of metal composite materials, in particular, to a preparation method and material of an aluminum-steel composite material with a welding and mechanical engagement interface. Background technique [0002] With the development of ship construction technology, it is difficult for a single metal hull structure material to meet the design requirements of high-speed ships. In order to reduce the mass, reduce the center of gravity, improve the stability, and increase the speed, the use of aluminum alloy structure for the superstructure or some components of the ship is a modern ship. major trends in development, such as figure 1 shown. Because the solubility between aluminum and steel is very low, a variety of intermetallic brittle phases will be formed when they fuse with each other, and traditional fusion welding methods cannot be used for connection. method of mechanical connection. Since...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 翟伟国
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP