Electroplating product and method for preparing same

A product, a technology of electroplating metal, applied in the field of electroplating products and its preparation, can solve problems such as nickel sensitivity symptoms, achieve good corrosion resistance, good impact resistance, and reduce the amount of nickel precipitation

Inactive Publication Date: 2008-01-30
精英塑胶(珠海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defect that the existing electroplating products are easy to cause nickel sensitivity symptoms after contacting with human skin, and provide an electroplating product that does not cause nickel sensitivity symptoms and has good surface properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] This embodiment illustrates the electroplating product and electroplating method provided by the present invention.

[0055] (1) Pretreatment of the base material

[0056] At 55°C, immerse a 5 cm x 5 cm x 0.5 cm ABS board (produced by Jilin Petrochemical, model 0215A) into a double volume of degreasing liquid (the degreasing liquid contains 25 g / L of sodium hydroxide). , 35 g / L sodium carbonate, 25 g / L sodium phosphate and 2 g / L OP-10 emulsifier), remove the oil for 10 minutes, then take out the ABS board and wash it with deionized water until there is no carbonate ion. Check out.

[0057] At 55°C, immerse the degreasing ABS plastic board in twice the volume of the roughening solution (the roughening solution contains 350 g / L chromic anhydride and 350 g / L sulfuric acid) for 8 minutes. Then take out the ABS board and wash it with deionized water until no sulfate ions are detected.

[0058] At room temperature, the roughened ABS board was immersed in twice the volume of hydro...

Embodiment 2

[0073] This embodiment illustrates the electroplating product and electroplating method provided by the present invention.

[0074] The ABS plate was electroplated according to the method of Example 1. The difference is that in step (5), the ABS plate is immersed in a plating solution at a temperature of 40° C. (the plating solution contains palladium dichloride and chlorine The palladium ion concentration in the plating solution is 0.054 mol / L, and the nickel ion concentration is 0.32 mol / L) as the cathode, and the graphite plate is used as the anode. The current density is 4 A / dm, and the plating is 5 minutes, so that the thickness of the palladium-cobalt alloy coating is 0.3 micrometers. The electroplated product D2 is obtained.

Embodiment 3

[0076] This embodiment illustrates the electroplating product and electroplating method provided by the present invention.

[0077] The ABS plate was electroplated according to the method of Example 1. The difference is that in step (5), the ABS plate is immersed in a plating solution at a temperature of 45°C (the plating solution contains rhodium sulfate and sulfuric acid, and the The concentration of rhodium ions in the plating solution is 0.025 mol / liter, and the concentration of sulfuric acid is 35 g / liter) as the cathode, and the graphite plate is used as the anode. What is the thickness of the rhodium coating obtained with a current density of 2A / dm2 and electroplating for 6 minutes? Micrometers. In addition, in step (6), the ABS board is immersed in a plating solution at a temperature of 25°C (the plating solution is an aqueous chromium chloride solution, the chromium ion concentration in the plating solution is 0.48 mol / liter, and the pH is 2.5) As the cathode, the graphit...

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Abstract

A plating product comprises a matrix material and plated metal layers on the surface thereof; from the inner layer to the outer layer, the plated metal layers comprise a Cu layer, a Ni layer and a Cr layer in sequence, wherein the plated metal layers comprise a middle plating layer which is positioned between the Ni layer and the Cr layer and made from Pd, Ru or Rh, or an alloy of any two, three or four kinds of metals Pd, Rh, Ru and Ni. The invention also provides a preparation method of the plating product; according to the plating product of the invention, the middle plating layer is positioned between the Ni layer and the Cr layer, and the middle plating layer can inhibit metal Ni from precipitating to the surface of the plating product, so that the precipitation quantity of Ni can be greatly reduced, and the precipitation quantity of metal Ni can meet the specification of no more than 0.5 Mug per cm2.week; furthermore, compared with the existing ordinary plating products, the plating product of the invention also have good surface performances such as abrasion resistance, corrosion resistance and impact resistance.

Description

Technical field [0001] The invention relates to an electroplating product and a preparation method thereof. Background technique [0002] The electroplated metal or non-metal processed parts not only have a beautiful appearance, but the plating layer can also play a role in decoration and protection of the base material. Take plastic products as an example. Plastic has the characteristics of light weight, good plasticity, fine and smooth surface, and can be made into different shapes according to needs. Electroplated plastic products have better decorative properties than ordinary plastics, are easy to process, have good surface gloss and smoothness, and are therefore widely used in automobiles, motorcycles, hardware, and daily household goods. [0003] Traditional plastic electroplating processes all use metallic nickel, so the resulting electroplated products include nickel plating. Nickel plating is widely used due to its good decoration, protection and wear resistance. Later ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D5/10C25D9/02C23C28/02
Inventor 陈梁宫清刘芳
Owner 精英塑胶(珠海)有限公司
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