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How to imitate gold on galvanized sheet

A technology of galvanized sheet and imitation gold, applied in the field of imitation of galvanized sheet gold, can solve the problems of high cost, large pollution, instability, etc.

Active Publication Date: 2018-05-18
SHANDONG JIANZHU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Commonly used imitation gold plating is currently mostly based on brass plating solution, which is a binary alloy or a ternary alloy, and the cyanide process is mostly used. This process is not only unstable, but also costly and polluting. The toxic waste liquid obtained cannot be deal with

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] The specific preparation steps of this embodiment are as follows:

[0010] a. Use Q235 material as the substrate for bright galvanizing, so that the thickness of the galvanized layer is above 8um, and use 3% nitric acid at room temperature to emit light for 4s;

[0011] b. Using chromium chloride, sodium citrate, sodium nitrate, cobalt chloride, and silver nitrate as a color passivator for galvanized trivalent chromium that is uniformly dissolved and mixed in a certain proportion;

[0012] c. Passivate the galvanized decorative plate in the trivalent chrome color passivation solution for 30s to present a golden yellow effect;

[0013] d. Rapidly immerse the passivated galvanized decorative panel in the sealant, and soak for 5 seconds under the condition of pH 6.5;

[0014] e. Quickly immerse the galvanized decorative panel directly in the immersion solution with a ratio of 1 volume of water-soluble varnish and 10 volumes of clear water for 1 minute;

[0015] f. Dry i...

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PUM

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Abstract

The invention relates to a gold imitation method for galvanized sheets. The gold imitation method comprises the technological steps of galvanizing material Q235, bright dipping, passivating, closing, paint dipping and drying. According to the invention, the corrosion resistance of the galvanized decorative sheets can be remarkably improved, and the decorative sheets are good in decoration effect.

Description

technical field [0001] The invention relates to a method for applying trivalent chromium imitation gold to galvanized decorative boards, in particular to a composition of trivalent chromium imitation gold and a method for galvanized decorative boards. Background technique [0002] Galvanized sheet trivalent chromium imitation gold method imitation gold color is 18k, corrosion resistance and appearance are greatly improved. Commonly used imitation gold plating is currently mostly based on brass plating solution, which is a binary alloy or a ternary alloy, and the cyanide process is mostly used. This process is not only unstable, but also costly and polluting. The toxic waste liquid obtained cannot be deal with. The imitation gold system of galvanized sheet includes chromium chloride, sodium citrate, sodium nitrate, cobalt chloride, and silver nitrate that are uniformly dissolved and mixed in a certain proportion, galvanized trivalent chromium color passivator and water-solub...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C22/53C23C22/82
CPCC23C22/53C23C22/82C23C2222/10
Inventor 石磊李培政缪学志刘科高史璐玉禤畅
Owner SHANDONG JIANZHU UNIV