Foamed copper-silver alloy material and its preparation method

A technology of alloy materials and silver alloys, applied in electrolysis process, electroforming, etc., can solve the problems of small electrolysis area, heavy weight, and inability to achieve water purification effect of copper-silver electrodes

Inactive Publication Date: 2012-05-09
周宏霞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, domestic and foreign car washing water, landscape, fountain water, industrial cooling water, indoor and outdoor swimming pools or similar water supply systems use devices for sterilization and disinfection that use electronic physics methods to purify water, and use physical methods to purify water. The electrodes are all flat electrodes. However, the copper-silver electrode used in the water purification device using the electrophysics method has a small electrolytic area and a heavy weight, which cannot achieve a comprehensive water purification effect. Chlorine-based disinfectants must also be added to achieve a qualified level. clean water requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0006] Steps for preparing foamed copper-silver alloy material:

[0007] 1. Take a piece of 200mm×100mm×6mm conductive foam, and electrodeposit the conductive foam in the electrolytic cell to make silver alloy. The AgNO in the electrolyte 3 Concentration is 20g / l, CuI concentration is 10g / 1, K 1 P 2 o 7 The concentration is 400g / l, the KI concentration is 80g / l, the temperature is 30 degrees, and the current density is 3A / dm 2 . Settling time 28 hours.

[0008] 2. Heat the semi-finished product obtained in the above process in a vacuum heat treatment furnace for 30 minutes at a temperature of 700°C.

[0009] In the finished product obtained in this embodiment, metal copper accounts for 99.5% of the total mass of the alloy material, the balance is silver, the porosity is 95%, and the specific surface area is 1.2m 2 / g.

Embodiment 2

[0011] Steps for preparing foamed copper-silver alloy material:

[0012] 1. Take a piece of 200mm×100mm×6mm conductive foam, electrodeposit copper-silver alloy on the conductive foam in the electrolytic cell, and AgNO in the electrolyte 3 Concentration is 28g / l, CuI concentration is 12g / l, K 4 P 2 o 7 Concentration is 400g / l, K concentration is 95g / l, [C(HN 2 ) 2 S] concentration is 0.5g / l, temperature is 30 degrees, current density is 5A / dm 2 . The deposition time was 20 hours.

[0013] 2. The semi-finished product obtained in the above process is heat treated in a vacuum heat treatment furnace for 30 minutes at a temperature of 750°C.

[0014] In the finished product obtained in this embodiment, metal copper accounts for 80% of the total mass of the alloy material, the balance is silver, the porosity is 95%, and the specific surface area is 1.2m 2 / g.

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Abstract

The invention discloses a foamed copper-silver alloy material and its preparation method. With a three-dimensional net structure, the copper-silver alloy material is composed of a copper-silver alloy, wherein, the metal copper accounts for 80%-99.5% of the total mass of the alloy material, and silver accounts for 0.5%-20%. The preparation method comprises: electrodepositing the copper-silver alloy on conductive foam cotton, and finally carrying out high-temperature vacuum heat treatment. The alloy material of the invention has substantially reduced consumption of precious metal silver, simple production process, and low production cost, so that it can substitute copper-silver electrodes used in sewage treatment.

Description

technical field [0001] The invention relates to a metal porous material and a preparation method thereof, in particular to a foamed copper-silver alloy material and a preparation method thereof. technical background [0002] At present, domestic and foreign car washing water, landscape, fountain water, industrial cooling water, indoor and outdoor swimming pools or similar water supply systems use devices for sterilization and disinfection that use electronic physics methods to purify water, and use physical methods to purify water. The electrodes are all flat electrodes. However, the copper-silver electrode used in the water purification device using the electrophysics method has a small electrolytic area and a heavy weight, which cannot achieve a comprehensive water purification effect. Chlorine-based disinfectants must also be added to achieve a qualified level. clean water requirements. Chlorine reacts with organic matter in swimming pools and other places to produce chl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D1/08C25D3/58
Inventor 周宏霞
Owner 周宏霞
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