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Composite material of foamed metal, and preparation method

A metal composite material and foam metal technology, which is applied to the foam metal composite material and its manufacturing field, can solve the problems of high price of nickel foam and skyrocketing prices, and achieve the effects of low production cost, simple composition and wide application prospect.

Inactive Publication Date: 2007-12-26
贵州天烨科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in recent years, due to the shortage of metal nickel resources, the price has skyrocketed, resulting in the high price of foam nickel, and it is urgent to seek substitutes for foam nickel materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Take a piece of square sponge with a thickness of 2 mm and a thickness of 100 mm, soak it in a conductive glue with graphite as the main component, make the graphite adhere to the surface, take it out and dry it, and then electrodeposit iron for 25 minutes according to the following process:

[0048] Plating solution formula: FeCl 2 4H 2 O: 350 g / L

[0049] KCl: 15 g / L

[0050] MnCl 2 : 3 g / L

[0051] V 2 O5: 0.05 g / L

[0052] pH: 1.5

[0053] Temperature: 45°C

[0054] Current density: 20A / square decimeter

[0055] After cleaning, electroplate nickel for 15 minutes according to the following process:

[0056] Plating solution ratio: NiSO 4 ·7H 2 O: 240 g / L

[0057] NiCl 2 ·6H 2 O: 45 g / L

[0058] HBO 3 : 30 g / L

[0059] pH: 3.5

[0060] Temperature: 40°C

[0061] Current density: 2A / square decimeter

[0062] Then put it in an electric furnace, heat it to 900°C in an ammonia decomposition atmosphere, keep it warm for 15 minutes, and cool it naturally...

Embodiment 2

[0070] Take a piece of square sponge with a side length of 100 mm and a thickness of 2 mm, soak it in a conductive glue with graphite as the main component, make the graphite adhere to the surface, take it out and dry it, and then electrodeposit iron for 15 minutes according to the following process :

[0071] Plating solution formula: FeCl 2 4H 2 O: 360 g / L

[0072] KCl: 20 g / L

[0073] MnCl 2 : 5 g / L

[0074] V 2 o 5 : 0.1 g / L

[0075] pH: 1

[0076] Temperature: 30°C

[0077] Current density: 15A / square decimeter

[0078] After cleaning, electroplate nickel for 15 minutes according to the following process:

[0079] Plating solution ratio: NiSO 4 ·7H 2 O: 280 g / L

[0080] NiCl 2 ·6H 2 O: 50 g / L

[0081] HBO 3 : 40 g / L

[0082] pH: 3.5

[0083] Temperature: 45°C

[0084] Current density: 2.5A / square decimeter

[0085] Then put it in an electric furnace, heat it to 600°C in an ammonia decomposition atmosphere, keep it warm for 15 minutes, and cool it nat...

Embodiment 3

[0087] Take a piece of square sponge with a side length of 100 mm and a thickness of 2 mm, soak it in a conductive glue with graphite as the main component, make the graphite adhere to the surface, take it out and dry it, and then electrodeposit iron for 15 minutes according to the following process :

[0088] Plating solution formula: FeCl 2 4H 2 O: 400 g / L

[0089] KCl: 18 g / L

[0090] MnCl 2 : 2 g / L

[0091] V 2 O5: 0.08 g / L

[0092] pH: 1.2

[0093] Temperature: 38°C

[0094] Current density: 19A / square decimeter

[0095] After cleaning, electroplate nickel for 15 minutes according to the following process:

[0096] Plating solution ratio: NiSO 4 ·7H 2 O: 270 g / L

[0097] NiCl 2 ·6H 2 O: 48 g / L

[0098] HBO 3 : 36 g / L

[0099] pH: 4

[0100] Temperature: 50°C

[0101] Current density: 3A / square decimeter

[0102] Then put it in an electric furnace, heat it to 1000°C in an ammonia decomposition atmosphere, keep it warm for 15 minutes, and cool it natura...

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Abstract

This invention relates to a method for preparing a foam / metal composite material. The method comprises: adopting sponge as the matrix, performing conductive treatment on sponge so that sponge is conductive, electrodepositing iron onto sponge to obtain foam iron, electroplating nickel onto foam iron, and performing thermal treatment to obtain foam nickel-iron composite material. The porosity is above 95%, and the iron content is 50-90%. The composite material in this invention has such advantages as simple composition, low cost and high performance, and can be used to substitute for foam nickel in producing substrates of nickel-hydrogen battery and nickel-cadmium battery.

Description

technical field [0001] The invention relates to a metal composite material and a manufacturing method thereof, in particular to a foam metal composite material and a manufacturing method thereof. Background technique [0002] We know that foam nickel (Foam Nickel) is made of sponge as a substrate, electrodeposited nickel on the sponge and then heat-treated. The process flow is to electrodeposit nickel on the sponge after conductive treatment, then anneal, and roll to form the product foam nickel. The resulting nickel foam has a sponge three-dimensional network structure, its chemical composition nickel (Ni) > 99%, porosity > 95%, surface density is generally greater than 200 grams per square meter, and can be made into various thicknesses and shape. [0003] Due to these special properties of nickel foam, it has been widely used in many fields. Especially in the field of secondary batteries, due to its high porosity, it has successfully replaced the original sintered...

Claims

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Application Information

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IPC IPC(8): C25D1/08C25C5/02
Inventor 曹立新李萌初
Owner 贵州天烨科技有限公司
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