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A kind of processing method of golden yellow oxide film on the surface of brass products

A technology of brass products and processing methods, applied in the direction of metal material coating technology, etc., can solve the problems of complex process flow, high cost, and large pollution, and achieve the effect of firm color film, low cost, and small pollution

Active Publication Date: 2022-02-18
杭州朱炳仁铜艺股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The preparation of chemically colored oxide film on the metal surface generally adopts two kinds of chemical method and electrochemical method. Gold) oxide film is usually prepared by cyanide imitation gold electroplating or dipping coloring or vacuum plating imitation gold, the process is relatively complicated, and the cost is high and the pollution is large

Method used

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  • A kind of processing method of golden yellow oxide film on the surface of brass products
  • A kind of processing method of golden yellow oxide film on the surface of brass products
  • A kind of processing method of golden yellow oxide film on the surface of brass products

Examples

Experimental program
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Effect test

Embodiment 1

[0029] A method of processing a golden oxide film for a brass article, including the following steps:

[0030] (1) Preprocessing: sand blasting surface on the surface of the brass article, removes the surface oxide layer and oil, and then purge cleaning in the water, then rinse and blow it with water.

[0031] (2) Formulated golden chemical colored liquid, the formulation of golden chemical colorants is: 5 g of aqueous yellow metal complex dye / liter, 1 g / liter, 1 g of citric acid, 1 g / liter, penetrant JFC 0.1 g / liter, ethanol 10 (95%) ml / L, water rate.

[0032] (3) Surface Coloration: Evenly heated by the brass article after the step (1), the flame gun is uniformly heated and maintaining its surface temperature at 120-150 ° C, and the golden chemical colorant in the brass product is evenly sprayed with the surface of the brass article with a watering can. -100, until the uniform golden colored layer of the brass article has a uniform golden colored layer, and finally rin...

Embodiment 2

[0034] A method of processing a golden oxide film for a brass article, including the following steps:

[0035] (1) Preprocessing: sand blasting surface on the surface of the brass article, removes the surface oxide layer and oil, and then purge cleaning in the water, then rinse and blow it with water.

[0036] (2) Formulate golden chemical coloring liquid, the formulation of golden chemical colorants is 20 g / liter, 6 g / liter of sodium dichromate, 3 grams / liter, penetrant JFC 0.3 g / liter, ethanol (95%) 20 ml / L, water rate.

[0037] (3) Surface Coloration: Evenly heated by the brass product after the step (1), the flame gun is uniformly heated and maintaining its surface temperature at 120-150 ° C, and the golden-yellow chemical colorant is uniformly brush with a brush. Coated 40-50 times until a uniform golden colored layer appeared on the surface of the brass article, and finally rinsed the surface of the brass product with water to remove the surface.

[0038] (4) Post-...

Embodiment 3

[0040] A method of processing a golden oxide film for a brass article, including the following steps:

[0041] (1) Preprocessing: Chemically laminating the surface of the brass article, remove the surface oxide layer and oil, and then further polish it in the water, then rinse and blow it with water. The chemical acid washing is soaked in normal temperature, and time is about 5 minutes. The formulation of the chemical acid washing liquid washing liquid was: concentrated sulfuric acid (98%) of 100 mL / L, concentrated hydrochloric acid (36%) 30 mL / L, urea 6 g / L, OP-10 emulsifier 0.8 ml / L, Water rate.

[0042] (2) Formulate golden chemical coloring liquid, the formulation of the golden chemical coloring liquid is: 8 g / liter of aqueous yellow metal complex dye, 2 g / liter, 1 gram of tartaric acid, 1 g of tartaric acid, 1 gram of tartaric acid 1 Gram / liter, penetrant JFC 0.1 g / liter, ethanol (95%) 10 mL / L, water rate.

[0043] (3) Surface Coloration: Evenly heated by th...

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Abstract

The invention discloses a method for processing a golden oxide film on the surface of a brass product, which comprises the following steps: (1) pretreatment: sandblasting or chemical pickling treatment is carried out on the surface of the brass product, and then the surface of the brass product is soaked in water with a scouring pad Further polish and clean, then rinse with clean water and dry; (2) prepare golden yellow chemical coloring solution; (3) surface coloring: evenly heat the brass products treated in step (1) with a flame spray gun and maintain their surface temperature When the temperature reaches 120-150°C, use a watering can or brush to evenly spray or brush the golden yellow chemical coloring solution on the surface of the brass product for several times until a uniform golden coloring layer appears on the surface of the brass product, and finally rinse the yellow coloring solution with clean water. The surface of copper products; (4) post-treatment: seal the surface of brass products with paraffin or varnish. The process of the invention is relatively simple, the process is short, the color of the film is uniform, the color film is firm, the pollution is small, and the cost is low.

Description

Technical field [0001] The present invention relates to the field of copper product processing techniques, and more particularly to a method of processing a golden yellow oxide film for a brass article. Background technique [0002] As we all know, copper is one of the earliest metals of human find, with a slight hard, extremely tough, wear and good ductility, thermal conductivity and conductivity better. The products of copper and brass alloy have been widely used in electric power, electrician, thermal, chemical, instrumentation, shipbuilding and mechanical manufacturing. Brass is alloyed by copper and zinc, brass has good mechanical properties and casting properties with strong wear resistance, in the fields of hardware, decorative decoration, lamps, watches, jewelry, crafts, etc. wide. [0003] The preparation of metal surface chemical coloring oxide film is generally two kinds of chemical methods and electrochemical methods. In recent years, there have been more reports on t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C22/27C23C22/73C23C22/78C23G1/10C22C9/00
CPCC23C22/27C23C22/73C23C22/78C23G1/103C22C9/00
Inventor 朱军岷张道权朱炳仁
Owner 杭州朱炳仁铜艺股份有限公司
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