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Process for silver caating on surface of magnesium and magnesium alloy

A magnesium alloy and silver-plating technology, which is applied to the device for coating liquid on the surface, pre-treating the surface, liquid chemical plating, etc., can solve the problem that it is difficult to obtain silver plating, achieve excellent sterilization and disinfection, reduce pollution and Dangerousness, effect of expanding the scope of application

Inactive Publication Date: 2008-09-17
NORTHEASTERN UNIV LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the chemical properties of magnesium and its alloys, it is usually difficult to obtain an ideal silver coating on its surface by direct electroless silver plating.

Method used

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  • Process for silver caating on surface of magnesium and magnesium alloy
  • Process for silver caating on surface of magnesium and magnesium alloy
  • Process for silver caating on surface of magnesium and magnesium alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The method of combining coating technology and electroless plating technology is adopted, and the process is as follows.

[0031] 1. Degreasing: Put the metal magnesium or magnesium alloy into the degreasing solution, soak at room temperature for 30 minutes, then scrub the surface, and then thoroughly clean the magnesium or magnesium alloy with clean water. Described degreasing liquid formula is:

[0032]

[0033] 2. Pickling and alkaline cleaning: Put the degreased and cleaned magnesium or magnesium alloy into the pickling solution, use the temperature at room temperature, soak for 2 minutes, and after the surface of the magnesium or magnesium alloy shows metallic luster, take it out and wash it thoroughly with clean water. After wiping off the water droplets on the surface of magnesium or magnesium alloy, put it into alkaline washing solution to remove acid at room temperature, soak for 2 minutes, take it out, wash it thoroughly with clean water, and put it in a dr...

Embodiment 2

[0043] The method of combining coating technology and electroless plating technology is adopted, and the process is as follows.

[0044] 1. Degreasing: Put the metal magnesium or magnesium alloy into the degreasing solution, soak at room temperature for 30 minutes, then scrub the surface of the magnesium or magnesium alloy, and then thoroughly clean the magnesium or magnesium alloy with clean water. Described degreasing liquid formula is:

[0045]

[0046]

[0047] 2. Pickling and alkali cleaning: Put the degreased and cleaned magnesium or magnesium alloy into the pickling solution, use the temperature at room temperature, soak for 3 minutes, and after the surface of the magnesium or magnesium alloy shows metallic luster, take it out and wash it thoroughly with water. After wiping off the water droplets on the surface of magnesium or magnesium alloy, put it into alkaline washing solution to remove acid at room temperature, soak for 3 minutes, take it out, wash it thoroug...

Embodiment 3

[0062] The method of combining coating technology and electroless plating technology is adopted, and the process is as follows.

[0063] 1. Degreasing: Put the metal magnesium or magnesium alloy into the degreasing solution, soak at room temperature for 35 minutes, then scrub the surface of the magnesium or magnesium alloy, and then thoroughly clean the magnesium or magnesium alloy with clean water. Described degreasing liquid formula is:

[0064]

[0065] 2. Pickling and alkaline cleaning: Put the degreased and cleaned magnesium or magnesium alloy into the pickling solution, use the temperature at room temperature, soak for 4 minutes, and after the surface of the magnesium or magnesium alloy shows metallic luster, take it out and wash it thoroughly with water. After wiping off the water droplets on the surface of magnesium or magnesium alloy, put it into alkaline washing solution to remove acid at room temperature, soak for 4 minutes, take it out, wash it thoroughly with c...

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Abstract

The invention relates to magnesium and its alloy surface silver plating method. It combines film coating with chemical plating. The film coating is adopted dip coating after de-oiling, acid and alkaline cleaning. Then it processes coursing and sensitization, chemical silver plating, and dip plating at 45-60 centigrade degree for 8-15min. The bath is the mixture of silver salt and reducing agent. Finally it is coated organic coating and metal light protecting agent. The formed chemical silver plating layer is uniform and has metal silver appearance. The film coating has good ware, acid, and alkali resistance. The use level of silver nitrate is litter. Thus the material cost is low. And it is fit for industrialization product.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment, and in particular relates to a method for plating silver on the surface of magnesium and magnesium alloys. Background technique [0002] As we all know, metal magnesium and magnesium-based alloys have been widely used in aerospace, automobile industry, electronic communication and people's life due to their unique physical and mechanical properties. However, magnesium and its alloys are metal materials with very active chemical properties, so their applications are limited to a large extent. In order to solve this problem, relevant engineers and technicians have carried out a lot of experimental research on the surface treatment of metal magnesium and magnesium-based alloys, and have successively realized anodic oxidation, coating coverage, ceramic coverage, electroless nickel-phosphorus alloy layer, etc. However, the above surface treatment methods all have certain deficiencies,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C28/00B05C3/02B05D3/00C23C18/22C23C18/28C23C18/44
Inventor 崔建忠赵隆昌赵惠
Owner NORTHEASTERN UNIV LIAONING