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Method for preparing copper/molybdenum/copper layered compound metallic material

A composite metal material, copper layer technology, applied in metal processing equipment, metal layered products, chemical instruments and methods, etc. Alloy and other problems, to achieve the effect of low equipment requirements, low production cost and simple method

Inactive Publication Date: 2013-08-07
NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the copper-molybdenum binary phase diagram, it can be seen that copper and molybdenum are insoluble in each other, and the two cannot form a true alloy, and the physical properties of copper and molybdenum are quite different. Conventional welding methods cannot weld copper and molybdenum together.
The explosive welding composite method has the ability to weld metals with large performance differences such as copper / molybdenum, but this method is suitable for the production of large single-sheet, thick composite plates and slabs, and it cannot be directly produced for thinner composite plates.

Method used

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  • Method for preparing copper/molybdenum/copper layered compound metallic material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Preparation of copper / molybdenum / copper layered composite metal material with a thickness of 0.3mm: 0.5mm: 0.3mm:

[0037] Step 1. Grind the surface to be compounded of copper plate 1 and copper plate 2 with sandpaper until the surface roughness is not greater than 1.6 μm, and polish the surface to be compounded of molybdenum plate 2 with a grinding wheel until the surface roughness is not greater than 1.6 μm Wipe the surface to be compounded of the polished copper plate 1, copper plate 2 3 and molybdenum plate 2 with alcohol; the grades of the copper plate 1 and copper plate 2 3 are both T2, and the specifications are 2mm × 110mm × 180mm. The grade of the molybdenum plate 2 is Mo1, and the specification is 2mm×100mm×150mm;

[0038] Step two, such as figure 1 As shown, place the molybdenum plate 2 wiped clean in step 1 on a rigid foundation, and then evenly arrange two gap materials-4 with a height of 5mm above the molybdenum plate 2, and then place the copper plate-1 ...

Embodiment 2

[0045] Preparation of copper / molybdenum / copper layered composite metal material with a thickness of 0.2mm: 0.7mm: 0.2mm:

[0046] Step 1. Grind the surface to be compounded of copper plate 1 and copper plate 2 with sandpaper until the surface roughness is not greater than 1.6 μm, and polish the surface to be compounded of molybdenum plate 2 with a grinding wheel until the surface roughness is not greater than 1.6 μm Wipe the surface to be compounded of the polished copper plate 1, copper plate 2 3 and molybdenum plate 2 with alcohol; the grades of the copper plate 1 and copper plate 2 3 are both T2, and the specifications are 2mm × 160mm × 230mm, The grade of described molybdenum plate 2 is Mo1, and specification is 3mm * 150mm * 200mm;

[0047] Step 2. Place the molybdenum plate 2 wiped clean in step 1 on the rigid foundation, and then evenly set three gap material-4 with a height of 1mm above the molybdenum plate 2, and then place the copper plate-1 above the gap material-4 ...

Embodiment 3

[0054] Preparation of copper / molybdenum / copper layered composite metal material with a thickness of 0.3mm: 0.2mm: 0.3mm:

[0055] Step 1. Grind the surface to be compounded of copper plate 1 and copper plate 2 with sandpaper until the surface roughness is not greater than 1.6 μm, and polish the surface to be compounded of molybdenum plate 2 with a grinding wheel until the surface roughness is not greater than 1.6 μm Wipe the surface to be compounded of the polished copper plate 1, copper plate 2 3 and molybdenum plate 2 with alcohol; the grades of the copper plate 1 and copper plate 2 3 are both T2, and the specifications are 1mm × 110mm × 180mm, The grade of molybdenum plate 2 is Mo1, and the specification is 0.5mm×100mm×150mm;

[0056] Step 2. Place the molybdenum plate 2 wiped clean in step 1 on the rigid foundation, then evenly set 4 gap material 4 with a height of 3mm above the molybdenum plate 2, and then place the copper plate 1 above the gap material 4 , and keep the ...

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Abstract

The invention discloses a method for preparing a copper / molybdenum / copper layered compound metallic material, which comprises the following steps of: 1) polishing to-be-compounded surfaces of a first copper plate, a second copper plate and a molybdenum plate; 2) explosively compounding the molybdenum plate with the first copper plate, thereby acquiring a compound plate; 3) annealing the compound plate; 4) explosively compounding the compound plate with the second copper plate, thereby acquiring a copper / molybdenum / copper compound plate slab; 5) performing hot-rolling on the copper / molybdenum / copper compound plate slab; and 6) annealing and cooling the compound plate slab along with a furnace, thereby acquiring the copper / molybdenum / copper layered compound metallic material. The method provided by the invention is simple; the demand on equipment is low; the production cost is low; the volume production is easily realized; and the method is higher in production application value. According to the method, an explosive compounding technique is used for realizing the copper / molybdenum compounding, thereby overcoming the processing difficulty in compounding copper and molybdenum. Rolling technical parameters are controlled, thereby avoiding the situations of cracked compound interface and broken molybdenum and supplying a powerful technical support for the volume production of the copper / molybdenum / copper layered compound metallic material.

Description

technical field [0001] The invention belongs to the technical field of layered composite material preparation, and in particular relates to a method for preparing a copper / molybdenum / copper layered composite metal material. Background technique [0002] Copper / molybdenum / copper metal composite materials have excellent thermal and electrical properties, and are used as substrates, inlays, connectors and heat dissipation components in large-scale integrated circuits and high-power microwave devices. Its high thermal conductivity and heat resistance greatly improve the use function of microelectronic devices and make the devices miniaturized; its suitable thermal expansion coefficient can be well matched with semiconductor materials such as silicon and gallium arsenide and ceramic materials in microelectronic devices. , to avoid thermal fatigue damage caused by thermal stress. [0003] At present, the preparation methods of copper / molybdenum / copper layered metal composites are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B15/01B32B15/20B23K20/08
Inventor 张家毓李选明董运涛梁艳
Owner NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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