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Copper-tin-iron ternary alloy plating solution, electroplating method and electroplating product

A ternary alloy and plating solution technology, applied in the field of surface treatment, can solve the problems of poor wear resistance and corrosion resistance, and achieve the effect of improving wear resistance and corrosion resistance

Inactive Publication Date: 2011-06-01
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the existing electroplated copper-tin coating has the disadvantages of poor wear resistance and corrosion resistance, thereby providing a copper-tin-iron ternary alloy plating solution with good wear resistance and corrosion resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Base material: ZA8 zinc alloy die casting

[0045] (1) mechanical polishing

[0046] The base material is mechanically polished with a button cloth wheel combined with a small wool wheel polishing method to remove the burrs and scales produced by the raw material itself during the die-casting process.

[0047] (2) wax removal

[0048] Put the substrate treated in step (1) in Procleaner BR#1 universal wax removal water of Yongxing Chemical Company with an opening volume of 30ml / L, and remove wax in an ultrasonic environment for 5 minutes, and the working temperature is 80°C.

[0049] (3) Degreasing

[0050] Put the substrate treated in step (2) on the cathode for electrolytic degreasing, the degreasing agent is 30g / L sodium phosphate, 30g / L sodium carbonate, the working temperature is 60°C, the working time is 2min, and the current density is 5A / dm 2 .

[0051] (4) activation

[0052] Place the base material treated in step (3) in an activation solution with a mass ...

Embodiment 2

[0062] Base material: ZA8 zinc alloy die casting

[0063] Step is with embodiment 1, and difference is: the plating solution of electroplating copper-tin-iron ternary alloy is ethylsulfonic acid 300ml / L, copper methylsulfonate 16g / L (containing copper 4g / L), methanesulfonic acid Tin 10.4g / L (tin 4g / L), iron methanesulfonate 3.5g / L (iron 0.8g / L), sodium hypophosphite 0.3g, citric acid 20ml / L. The temperature of the plating solution is 20°C, the plating time is 20min, and the current density is 2A / dm 2 . Through testing, the content of copper in the coating is 40wt%, the content of tin is 56wt%, the content of iron is 4wt%, and the density of the coating is 8.20g / cm 3 , The Vickers hardness of the coating is 556.

Embodiment 3

[0068] Base material: 3A21 aluminum alloy stamping parts

[0069] (1) mechanical polishing

[0070] The base material is mechanically polished with a button cloth wheel combined with a small wool wheel polishing method to remove the burrs and scales produced by the raw material itself during the die-casting process.

[0071] (2) wax removal

[0072]Put the substrate treated in step (1) in Procleaner BR#1 universal wax removal water of Yongxing Chemical Company with an opening volume of 30ml / L, and remove wax in an ultrasonic environment for 5 minutes, and the working temperature is 80°C.

[0073] (3) Degreasing

[0074] Put the substrate treated in step (2) on the cathode for electrolytic degreasing, the degreasing agent is 30g / L sodium phosphate, 30g / L sodium carbonate, the working temperature is 60°C, the working time is 2min, and the current density is 5A / dm 2 .

[0075] (4) Alkali corrosion

[0076] Put the base material treated in step (3) in an alkaline etching solu...

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Abstract

The invention provides a copper-tin-iron ternary alloy plating solution which comprises copper sulfonate, stannous sulfonate, ferrous sulfonate, alkyl sulfonic acid, an auxiliary complexing agent and a reducer. In the plating solution, the content of copper is 4-9 g / L, the content of tin is 2.5-4 g / L, the content of iron is 0.8-1 g / L, the content of the alkyl sulfonic acid is 150-300 ml / L, the content of the reducer is 0.1-0.3 g / L, and the content of the auxiliary complexing agent is 5-20 ml / L. On the premise of increasing the content of tin, element iron is introduced into the plating solution, thereby overcoming the defect of low protective properties of the copper-tin alloy; and the tin-iron alloy can produce coprecipitate by adding the auxiliary complexing agent. The coprecipitate formed by tin and iron can effectively enhance the abrasive resistance and corrosion resistance of the plating on the premise of ensuring the oxidation resistance of the plating.

Description

technical field [0001] The invention relates to an electroplating solution, an electroplating method and an electroplating product, in particular to a copper-tin-iron ternary alloy electroplating solution, an electroplating method and an electroplating product, belonging to the technical field of surface treatment. Background technique [0002] Due to its excellent decorative and protective properties, nickel plating has been widely used in decorative and protective electroplating. Whether it is used as an intermediate coating or a decorative coating, the bright nickel coating has high use value. It is widely used in daily hardware and lighting Apparel, instrumentation, glasses and other industries are widely used. At the same time, the bright nickel coating is also an excellent anti-diffusion coating, which is widely used in the jewelry manufacturing industry. However, nickel often causes skin allergies, so it is not suitable to use nickel plating for products that are ofte...

Claims

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Application Information

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IPC IPC(8): C25D3/56C25D3/60C25D5/12
Inventor 赵桂网李爱华孙继鹏李慧杰
Owner BYD CO LTD
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