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Nano mirror spray coating

A technology of nano-mirror surface and spray gun, which is applied in the direction of liquid chemical plating, metal material coating process, coating, etc., and can solve the problems of improvement, long reaction time, and difficulty in industrialization

Inactive Publication Date: 2007-04-11
方宏亮
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But the existing technology has the following defects: 1) the simplification of the design and the single style; 2) the corrosion resistance and hardness of the existing sprayed mirror surface have a certain degree of deficiency; 3) because most of the mirrors used in the spraying process are weak Non-reductive agent, the reaction time is longer (2~3 minutes), so have to lose a large amount of raw materials, cause the waste of raw materials and the raising of cost, production speed is slower, industrialization is difficult!

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The step of nano-mirror surface spraying of the present invention is as follows:

[0023] 1) Remove the dust on the surface of the item;

[0024] 2) spray primer layer: on the article surface after dedusting, spray a 10 micron thick primer layer with a spray gun, dry; this primer layer is epoxy resin;

[0025] 3) Sensitization and activation treatment: Spray surface sensitization and activation solution on the surface of the article on which the primer layer is sprayed until the surface of the article is completely wet, and then rinse the article with pure aqueous solution; the surface sensitization and activation solution Containing 15 grams / liter of tin chloride, 5 grams / liter of palladium chloride, and 65 grams / liter of hydrogen chloride; the resistivity of the pure aqueous solution is greater than 10Ω·cm;

[0026] 4) Spray gun spraying reduction reaction: spray A agent and B agent simultaneously to the surface of the sensitized and activated article with a double-h...

Embodiment 2

[0034] The step of nano-mirror surface spraying of the present invention is as follows:

[0035] 1) Remove the dust on the surface of the item;

[0036] 2) Spray primer layer: on the article surface after dedusting, spray a 30 micron thick primer layer with a spray gun, and dry; the primer layer fluorocarbon resin;

[0037] 3) Sensitization and activation treatment: Spray the surface sensitization activation solution on the surface of the article on which the primer layer is sprayed until the surface of the article is completely wet, and then rinse the article with pure aqueous solution; in the surface sensitization activation solution Contains 25 grams / liter of tin chloride, 15 grams / liter of palladium chloride, and 75 grams / liter of hydrogen chloride; the resistivity of the pure aqueous solution is greater than 10Ω·cm;

[0038] 4) Spray gun spray reduction reaction: spray A agent and B agent to the surface of the sensitized and activated article with a double-head spray gun...

Embodiment 3

[0046] The step of nano-mirror surface spraying of the present invention is as follows:

[0047] 1) Remove the dust on the surface of the item;

[0048] 2) Spray primer layer: on the article surface after dedusting, spray a 20 micron thick primer layer with a spray gun and dry; this primer layer is a mixture of epoxy resin and fluorocarbon resin;

[0049] 3) Sensitization and activation treatment: Spray the surface sensitization activation solution on the surface of the article on which the primer layer is sprayed until the surface of the article is completely wet, and then rinse the article with pure aqueous solution; in the surface sensitization activation solution Contains 20 grams / liter of tin chloride, 10 grams / liter of palladium chloride, and 70 grams / liter of hydrogen chloride; the resistivity of the pure aqueous solution is greater than 10Ω·cm;

[0050]4) Spray gun spraying reduction reaction: spray A agent and B agent simultaneously to the surface of the sensitized a...

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Abstract

The nanometer mirror spraying process includes the following steps: 1. eliminating surface dust; 2. spraying primer; 3. sensitizing and activating treatment; 4. spraying solution A comprising silver nitrate solution, ammonia water solution and sodium hydroxide solution and solution B comprising sodium borohydride, potassium borohydride or p-methylaminophenol sulfate solution in the volume ratio of 1 to 1-1.7 to produce reduction; 5. shaping and developing; 6. blowing to dry; and 7. drying. The present invention has the advantages of diversified products, high corrosion resistance, suitability to mass production, high hardness, low cost, etc.

Description

technical field [0001] The invention relates to a method for spraying articles by using silver mirror reaction, in particular to nanometer mirror surface spraying. Background technique [0002] With the improvement of living standards, people have higher and higher requirements for the glossiness of the outer surface of articles. Recently, a method of spraying articles using silver mirror reaction has been proposed, which can significantly improve the glossiness of the surface of the article; this method is to spray an alkaline solution containing metal onto the surface of an article made of resin, and simultaneously on the surface Spray an aqueous solution containing metal ions such as silver ions and an aqueous solution containing a reducing agent, use the silver mirror reaction to reduce the metal ions and precipitate the metal, then wash in pure water to remove the remaining components, spray a specific fixative such as anhydrous sodium sulfite, and then Carry out trans...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/44C23C18/18C23C18/28
Inventor 方宏亮
Owner 方宏亮
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