Preparation of foamed metal sandwich board using clad rolling method

A foam metal and sandwich panel technology, which is applied to metal layered products, metal rolling, metal rolling and other directions, can solve the problems of long preparation process cycle, unsatisfactory combination of foam metal and metal plate, etc., and achieves simple equipment conditions. Effect

Inactive Publication Date: 2005-02-16
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These two kinds of methods all exist: (1) preparation process cycle is long; (2) two defects that the combination of foam metal and metal plate are not ideal

Method used

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  • Preparation of foamed metal sandwich board using clad rolling method
  • Preparation of foamed metal sandwich board using clad rolling method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] After annealing AlSi6 aluminum alloy powder, after passing through a 200-mesh sample sieve, it is mixed with titanium hydride of the same particle size (the dosage is 2% of the total mass of the powder mixture) in a ball mill (the ratio of ball to material is 1:1, and the rotation speed is 100 rpm). / min), after grinding the surface of the pure aluminum plate with a thickness of 0.8 mm, it is wrapped with a mixture of metal powder and titanium hydride (the height of the sleeve is 15 mm), cold rolled to a thickness of 5 mm, and then hot rolled at a temperature of 450 ° C. (30% reduction) to 3.5 mm, foaming at 620°C for 10 minutes to obtain aluminum with a thickness of 15-17 mm, a surface layer thickness of 0.6 mm, a pore size of 0.8-2 mm, and a porosity of 60%-70% -Porous foam aluminum sandwich panel.

Embodiment 2

[0033] After annealing 6061 aluminum alloy powder, after passing through a 300-mesh sample sieve, it is mixed with titanium hydride of the same particle size (the dosage is 2% of the total mass of the powder mixture) in a ball mill (the ratio of ball to material is 1:1, and the rotation speed is 120 rpm). / min), after grinding the surface of the pure copper plate with a thickness of 0.6 mm, wrap it with a mixture of metal powder and titanium hydride (the height of the sleeve is 15 mm), cold-rolled to a thickness of 5 mm, and then hot-rolled at a temperature of 500 ° C ( 30% reduction) to 3.5 mm, foaming at 680 degrees for 12 minutes, to obtain copper with a thickness of 15-17 mm, a surface layer thickness of 0.5 mm, a pore size of 1-3 mm, and a porosity of 60%-80% -Porous foam aluminum sandwich panel.

Embodiment 3

[0035] After the H68 copper alloy powder is annealed and passed through a 200-mesh sample sieve, it is mixed with calcium carbonate of the same particle size (the dosage is 3% of the total mass of the powder mixture) in a ball mill (the ratio of ball to material is 1:1, and the rotation speed is 100 rpm). / min), after grinding the surface of Q235 steel plate with a thickness of 0.6 mm, wrap it with a mixture of metal powder and calcium carbonate (the height of the sleeve is 15 mm), cold-rolled to a thickness of 5 mm, and then hot-rolled at a temperature of 700 ° C ( 30% reduction) to 3.5 mm, foaming at 1000°C for 8 minutes, can obtain steel with thickness of 15-17 mm, surface layer thickness of 0.5 mm, pore size of 0.3-0.6 mm, and porosity of 60%-80%- Porous copper foam sandwich panel.

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Abstract

A process for preparing sandwich plate of foam metal by wrapping-rolling method includes such steps as proportioning metal powder and foaming agent and controlling their granularity, mixing them, wrapping the mixture under stirring to uniformity, cold rolling, hot rolling for compactness, and foaming. Its advantages are simple apparatus and high binding strength between foamed core and metal plate and specific rigidity. It can be used to damp sound and vibration and insulate heat.

Description

1. Technical field [0001] The invention relates to a foam metal sandwich board (a board with a metal plate on the surface and a metal foam on the core) and a preparation method thereof, belonging to the field of porous metal foam materials. 2. Background technology [0002] Foam metal sandwich panels have the characteristics of light weight, high specific rigidity, noise reduction, shock absorption, heat preservation, and heat insulation, etc., and have huge market potential in the fields of construction, decoration, aviation, ships, noise reduction shock absorbers, sporting goods and other fields. At present, the known preparation process of foamed metal sandwich panels is firstly obtained by the following two methods (1) powder rolling to obtain a powder plate, and the powder plate is then compounded with a metal plate and then foamed; (2) obtained by other methods The foam metal is processed into a plate and then connected with a metal plate. Both of these two methods ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B47/00B22F7/04B32B5/20B32B15/01C22C1/08
Inventor 左孝青顾昆孙加林史庆南刘荣佩陆建生
Owner KUNMING UNIV OF SCI & TECH
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