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Surface treatment method of spray gun

A surface treatment and spray gun technology, applied in the field of product surface treatment technology, can solve the problems of hardness, aesthetics and poor hand feeling

Inactive Publication Date: 2013-04-17
王定志
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention aims at the disadvantages of surface-treated spray guns in the prior art, such as poor hardness, aesthetics and poor hand feeling, and provides a simple process flow, high product hardness, more beautiful surface, corrosion resistance, oxidation resistance, and better hand feeling. Surface treatment method of spray gun

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The surface treatment method of the spray gun is as follows:

[0024] Step a: Die-cast and process the national standard ADC12 aluminum alloy, polish and clean the surface, and then clean the dirt with ultrasonic waves;

[0025] Step b: Zinc-precipitation and then cleaning, after the second zinc-precipitation and re-cleaning, pre-nickel plating is performed in the nickel plating tank, and cleaning is performed after pre-nickel plating for 20 minutes;

[0026] Step c: Activation and cleaning, and copper plating in the copper plating tank for 30 minutes; activation uses colloidal palladium activation solution, wherein the cuprous salt is 2g / l, the content of palladium in the divalent palladium compound is 1.3g / l, and the amount of tin is 15g / l. Hydrochloric acid 10ml / l (content about 35%) was treated at 30° for 5 minutes. Wherein the monovalent copper compound adopts cuprous chloride. The divalent palladium compound adopts palladium chloride. Tin adopts tin protochlori...

Embodiment 2

[0038] The surface treatment method of the spray gun is as follows:

[0039] Step a: Die-cast and process the national standard ADC12 aluminum alloy, polish and clean the surface, and then clean the dirt with ultrasonic waves;

[0040] Step b: Zinc-precipitation and then cleaning, after the second zinc-precipitation and re-cleaning, pre-nickel plating is performed in the nickel plating tank, and cleaning is performed after pre-nickel plating for 15 minutes;

[0041] Step c: Activation and cleaning, copper plating in the copper plating tank for 20 minutes; colloidal palladium activation solution can be used for activation, wherein the cuprous salt is 10g / l, the content of palladium in the divalent palladium compound is 2g / l, and the amount of tin is 50g / l. Hydrochloric acid 240ml / l (content about 35%) was treated at 50° for 8 minutes. Wherein the monovalent copper compound adopts cuprous bromide. The divalent palladium compound adopts palladium sulfate. Tin adopts tin protoc...

Embodiment 3

[0053] The surface treatment method of the spray gun is as follows:

[0054] Step a: Die-cast and process the national standard ADC12 aluminum alloy, polish and clean the surface, and then clean the dirt with ultrasonic waves;

[0055] Step b: Zinc-precipitation and then cleaning, after the second zinc-precipitation and re-cleaning, pre-nickel plating is performed in the nickel plating tank, and cleaning is performed after pre-nickel plating for 15-25 minutes;

[0056] Step c: Activation and cleaning, copper plating in the copper plating tank for 20-40 minutes; activation can use colloidal palladium activation solution, in which cuprous salt 4g / l, palladium content in divalent palladium compound 0.5g / l, tin dosage 10g / l, hydrochloric acid 350ml / l (content about 35%) treated at 40° for 4 minutes. Wherein the monovalent copper compound adopts cuprous iodide. The divalent palladium compound adopts palladium acetate. Tin adopts tin protochloride.

[0057] Step d: After copper...

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PUM

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Abstract

The invention relates to a product surface treatment process and discloses a spray gun surface treatment method. The method is as follows: Die-cast and process an aluminum alloy, polish and clean the surface, and then clean the dirt with ultrasonic waves; , pre-nickel plating in the nickel plating tank after the second galvanization and cleaning, cleaning after 1 minute of pre-nickel plating; activation cleaning, copper plating in the copper plating tank; after copper plating, cleaning, activation cleaning and then nickel plating Plating bright nickel in the tank; after cleaning, it enters the oven for drying and then draws; after the drawing is completed, it is electrostatically sprayed; the products after electrostatic spraying enter the constant temperature drying room for drying through the circulation track, and the dried products are then passed through Pick and install into a finished product. The present invention is mainly used for surface painting products such as automobiles, furniture, mechanical products, etc., replacing traditional surface treatments such as chrome plating, nickel plating, and electroplating, and has anti-corrosion, anti-oxidation, and better hand feeling.

Description

technical field [0001] The invention relates to a product surface treatment process, in particular to a spray gun surface treatment method. Background technique [0002] Metal workpieces will inevitably be oxidized and corroded during processing, transportation, storage, etc., and the surface is often covered with oxide scales, rust, molding sand, welding slag, dust, oil and other dirt. In order for the deep layer to be firmly attached to the surface of the workpiece, the surface of the workpiece must be cleaned before coating, otherwise, it will not only affect the bonding force and corrosion resistance of the coating and the metal, but also make the base metal even if it is coated. It can continue to corrode even under the layer protection, causing the coating to peel off, affecting the mechanical properties and service life of the workpiece. [0003] Existing surface treatment processes for spray guns are mainly traditional chrome plating, nickel plating, electric chant,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23F17/00C23C18/40C23C18/36B05D1/04B05D3/02
Inventor 王定志
Owner 王定志
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