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Post-processing method of high-brightness copper ornament

A decoration and brightness technology, applied in the direction of metal material coating process, can solve problems such as high cost, damage to copper decorations, increase storage time, etc., to improve high and low temperature resistance, prolong corrosion resistance, and prevent damage. Effect

Inactive Publication Date: 2020-12-01
HUZHOU GUANJU METAL DECORATION MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the preservation of copper ornaments has always been a difficult problem to solve, and a large number of copper ornaments will be damaged due to improper preservation every year; generally, placing copper ornaments directly in the air will be easily corroded by impurities in the air , and the storage time is short; especially the copper decorations decorated on copper doors and other outdoor products are more likely to be corroded. Corrosion of impurities, thereby increasing the storage time, but this method requires the use of heavy metal silver, the cost is high, and the metal silver will turn black in the air, affecting the appearance, so it is necessary to study a post-processing method for high-brightness copper decorations

Method used

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  • Post-processing method of high-brightness copper ornament

Examples

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Comparison scheme
Effect test

Embodiment 1

[0015] A post-processing method for high-brightness copper decorations, comprising the following steps:

[0016] A Clean the copper ornaments with deionized water, then put them into the passivation solution and soak for 55s to passivate the surface of the copper ornaments; then take out the copper ornaments and dry them with a dry cloth, pour them into Soak in glycerin for 12s, then quickly dry at 160°C;

[0017] B Wrap the surface of the copper ornament with cotton cloth, and then place it in a low temperature of minus 25°C for 50 hours;

[0018] C Take out the copper decoration wrapped in cotton cloth, then wash off the glycerin on the surface with deionized water and dry it with a dry cloth.

[0019] In the step A, the passivation solution is composed of the following components by weight percentage: phytic acid 0.5%, disodium edetate 1.8%, hydrogen peroxide 3.5%, boric acid 0.8%, polyethylene glycol 1.8% % and the balance of deionized water.

Embodiment 2

[0021] A post-processing method for high-brightness copper decorations, comprising the following steps:

[0022] A Clean the copper decorations with deionized water, then put them into the passivation solution and soak for 65s to passivate the surface of the copper decorations; then take out the copper decorations and dry them with a dry cloth, pour them into Soak in glycerin for 8s, then quickly dry at 180°C;

[0023] B Wrap the surface of the copper ornament with cotton cloth, and then leave it to stand for 48 hours at a low temperature of minus 30°C;

[0024] C Take out the copper decoration wrapped in cotton cloth, then wash off the glycerin on the surface with deionized water and dry it with a dry cloth.

[0025] In the step A, the passivation solution is composed of the following components by weight percentage: 0.8% phytic acid, 1.5% disodium edetate, 5% hydrogen peroxide, 0.5% boric acid, polyethylene glycol 3 % and the balance of deionized water.

Embodiment 3

[0027] A post-processing method for high-brightness copper decorations, comprising the following steps:

[0028] A Clean the copper decorations with deionized water, then put them into the passivation solution and soak for 45s to passivate the surface of the copper decorations; then take out the copper decorations and dry them with a dry cloth, pour them into Soak in glycerin for 15s, then quickly dry at 150°C;

[0029] B Wrap the surface of the copper ornament with cotton cloth, and then place it in a low temperature of minus 22°C for 60 hours;

[0030] C Take out the copper decoration wrapped in cotton cloth, then wash off the glycerin on the surface with deionized water and dry it with a dry cloth.

[0031] In the step A, the passivation solution is composed of the following components by weight percentage: phytic acid 0.3%, disodium edetate 2.5%, hydrogen peroxide 2%, boric acid 1.2%, polyethylene glycol 1% % and the balance of deionized water.

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Abstract

The invention discloses a post-processing method of a high-brightness copper ornament. The method comprises the following steps of passivating the surface of the copper ornament through an acidic passivating solution, wiping the copper ornament with dry cloth, pouring the copper ornament into glycerol, soaking the copper ornament, quickly drying the copper ornament, conducting standing treatment for 48-60 hours at the low temperature, washing off the glycerol, and wiping the copper ornament to accomplish the process. The post-processing method of the high-brightness copper ornament is low in cost, and the passivating solution can be repeatedly used; the copper ornament is subjected to low-temperature treatment, the high-temperature and low-temperature resistance of the copper ornament canbe effectively improved, and the damage, caused by high-temperature and low-temperature changes, to a passive film can be effectively avoided, so that the corrosion resistance of the copper ornament is effectively improved, and the effect is better through the addition of glycerol. The post-processing method of the high-brightness copper ornament is low in cost, and the processed copper ornament can keep the high brightness for a long time and cannot darken and blacken.

Description

technical field [0001] The invention relates to the technical field of metal decorations, in particular to a post-processing method for high-brightness copper decorations. Background technique [0002] At present, the preservation of copper ornaments has always been a difficult problem to solve. Every year, a large number of copper ornaments will be damaged due to improper preservation; generally, placing copper ornaments directly in the air will be easily corroded by impurities in the air , and the storage time is short; especially the copper decorations decorated on copper doors and other outdoor products are more likely to be corroded. The corrosion of impurities will increase the storage time, but this method requires the use of heavy metal silver, which has high cost, and the metal silver will turn black in the air, affecting the appearance, so it is necessary to study a post-treatment method for high-brightness copper decorations. Contents of the invention [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/52C23C22/82
CPCC23C22/52C23C22/82
Inventor 姚晓祥
Owner HUZHOU GUANJU METAL DECORATION MATERIALS CO LTD
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