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Stainless steel colouring solution and colouring method

A stainless steel and coloring solution technology, applied in the field of environmentally friendly stainless steel coloring solution, can solve the problems of long operation time, difficulty in plating, high energy consumption, etc., and achieve good acid and alkali resistance, excellent light resistance, and low energy consumption Effect

Inactive Publication Date: 2015-03-11
江门市福斯特金属表面处理技术发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Another method of stainless steel coloring technology is vacuum ion plating. This method generally requires a relatively large investment and relatively high energy consumption. At the same time, when one color is completed, the vacuum furnace must be thoroughly cleaned to replace another color. The operation takes a long time
In addition, this method is actually vacuum sputtering. If there is a "dead angle" between the product and the metal target, it is not easy to plate, so some products with more complicated shapes cannot be electroplated by this method. For example, plated products Lumen, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] To color stainless steel parts with a light champagne tone, the steps include:

[0035] a) Degreasing and cleaning: Use metal detergent to remove oil on the surface of stainless steel parts, and wash with hot water at 70°C;

[0036] b) Polishing: mechanical polishing or electrochemical polishing of stainless steel parts;

[0037] c) degreasing and cleaning: repeat step a);

[0038] d) Activation and cleaning: activate the anode stainless steel parts in 5% sulfuric acid, and then clean the stainless steel parts with distilled water;

[0039] e) Coloring: The stainless steel parts are immersed in the coloring solution at 75°C, stirred with air, and colored for 10 minutes. (90 g / L) and water;

[0040] f) Cleaning and drying: wash with distilled water and air-dry at room temperature to obtain a light champagne-colored finished product.

Embodiment 2

[0042] To color stainless steel parts with champagne color tone, the steps include:

[0043] a) Degreasing and cleaning: Use metal detergent to remove oil on the surface of stainless steel parts, and wash with hot water at 75°C;

[0044] b) Polishing: mechanical polishing or electrochemical polishing of stainless steel parts;

[0045] c) degreasing and cleaning: repeat step a);

[0046]d) Activation and cleaning: in 7% sulfuric acid, activate the anode stainless steel parts, and then clean the stainless steel parts with distilled water;

[0047] e) Coloring: The stainless steel parts are immersed in the coloring solution at 85°C, stirred with air, and colored for 10 minutes. (120 g / L) and water;

[0048] f) Cleaning and drying: wash with distilled water and air-dry at room temperature to obtain a champagne-colored finished product.

Embodiment 3

[0050] To color stainless steel parts with champagne color tone, the steps include:

[0051] a) Degreasing and cleaning: Use metal detergent to remove oil on the surface of stainless steel parts, and wash with 80°C hot water;

[0052] b) Polishing: mechanical polishing or electrochemical polishing of stainless steel parts;

[0053] c) degreasing and cleaning: repeat step a);

[0054] d) Activation and cleaning: in 8% sulfuric acid, activate the anode stainless steel parts, and then clean the stainless steel parts with distilled water;

[0055] e) Coloring: The stainless steel parts are immersed in the coloring solution at 80°C, stirred with air, and colored for 10 minutes. (150 g / L) and water;

[0056] f) Cleaning and drying: wash with distilled water and air-dry at room temperature to obtain a champagne-colored finished product.

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PUM

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Abstract

The invention discloses a stainless steel colouring solution. The stainless steel colouring solution is characterized by comprising phytic acid, sulphuric acid, sodium hyposulphite and water, wherein final concentration range of phytic acid is 100-250g / l, the final concentration range of sulphuric acid is 150-500g / l, and the final concentration range of the sodium hyposulphite is 80-200g / l. The stainless steel colouring solution disclosed by the invention contains no chromium element, no environmental pollution restriction exists in the aspect of large-scale production, and ecological environment protection can be facilitated; a coloured membrane is excellent in oxidation resistance and light resistance and good in acid and alkali resistance and is applicable to interior and outdoor circumstances and environments contacting acid, alkali and salt; and besides, the adopted raw materials are low in cost and easy to purchase, large-scale production is adopted, and energy consumption is low and repeatability is good during production.

Description

technical field [0001] The invention relates to a chrome-free and lead-free environment-friendly stainless steel coloring solution and a coloring method. Background technique [0002] Stainless steel has excellent characteristics such as unique strength, high wear resistance, superior anti-corrosion performance and not easy to rust. Therefore, it is widely used in chemical industry, food machinery, mechanical and electrical industry, environmental protection industry, household appliance industry, home decoration and fine decoration industry, giving people a gorgeous and noble feeling. Stainless steel coloring not only endows stainless steel products with various colors and increases the variety of products, but also improves the wear resistance and corrosion resistance of products. [0003] Due to the interference phenomenon between the emitted light on the surface of the stainless steel oxide film and the light refracted through the surface oxide film, it presents various...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C22/50
Inventor 梁伟平
Owner 江门市福斯特金属表面处理技术发展有限公司