Silver-based multicomponent alloy composite solution and method for preparing functional coating through silver-based multicomponent alloy composite solution

A multi-element alloy and composite solution technology, applied in electrical components, contacts, electric switches, etc., can solve problems such as fusible welding, low life, material transfer, etc., to reduce silver consumption, improve electrical corrosion resistance, and reduce loss Effect

Inactive Publication Date: 2017-06-30
佛山市宇光电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of application, there are still shortcomings such as serious material transfer, low service life, and easy fusion welding. At the same time, silver cadmium oxide materials also have a fatal weakness, that is, they contain cadmium that is harmful to the human body and the environment. Cadmium contamination exists throughout the production, assembly, use and recycling of materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) Configuration of electroplating solution:

[0036] The nickel plating solution consists of the following concentrations of ingredients: NiSO 4 ·7H 2 O 280g / L, NiCl 2 ·6H 2 O 30g / L, H 3 BO 3 40g / L, H 2 O as a solvent;

[0037] The pre-silvering solution included the following concentrations of ingredients: KAg(CN) 2 5g / L, KCN 60g / L, H 2 O is used as a solvent to adjust the pH value of the pre-silvering solution to 10;

[0038] The silver-plated multi-element alloy composite electroplating solution comprises the composition of following concentration: KAg(CN) 2 40g / L, KCN 45g / L, K 4 P 2 o 7 ·3H 2 O 5g / L, nickel salt (calculated as Ni) 0.2g / L, potassium sodium tartrate 15g / L, antimony salt (calculated as Sb) 0.1g / L, lanthanum oxide 0.2g / L, indium oxide 0.05g / L, Cationic dispersant active agent 5ml / L, H 2 O is used as a solvent; the pH value of the silver-based multi-element alloy composite solution is adjusted to 9;

[0039] The cationic dispersing acti...

Embodiment 2

[0052] (1) Configuration of electroplating solution:

[0053] The main components of the nickel plating solution are: NiSO 4 ·7H 2 O 300g / L, NiCl 2 ·6H 2 O 30g / L, H 3 BO 3 40g / L, H 2 O as a solvent;

[0054] The main components of the pre-plating silver solution are: KAg(CN) 2 7g / L, KCN 65g / L, H 2 O is used as a solvent to adjust the pH value of the pre-silvering solution to 10;

[0055] The main components of the silver-based multi-element alloy composite electroplating solution are: KAg(CN) 2 55g / L, KCN 70g / L, K 4 P 2 o 7 ·3H 2 O 10g / L, nickel salt (calculated as Ni) 0.6g / L, potassium sodium tartrate 18g / L, antimony salt (calculated as Sb) 0.3g / L, lanthanum oxide 1.2g / L, indium oxide 0.4g / L, Cationic dispersant active agent 25ml / L, H 2 O is used as a solvent; the pH value of the silver-based multi-element alloy composite solution is adjusted to 11;

[0056] (2) Electroplating:

[0057] Surface treatment of base material: Put the base material polished by sa...

Embodiment 3

[0069] (1) Configuration of electroplating solution:

[0070] The main components of the nickel plating solution are: NiSO 4 ·7H 2 O 280g / L, NiCl 2 ·6H 2 O 25g / L, H 3 BO 3 38g / L,H 2 O as a solvent;

[0071] The main components of the pre-plating silver solution are: KAg(CN) 2 7g / L, KCN 60g / L, H 2 O is used as a solvent to adjust the pH value of the pre-silvering solution to 10;

[0072] The main components of the silver-based multi-element alloy composite electroplating solution are: KAg(CN) 2 50g / L, KCN 75g / L, K 4 P 2 o 7 ·3H 2 O 6g / L, nickel salt (calculated as Ni) 0.5g / L, potassium sodium tartrate 15g / L, antimony salt (calculated as Sb) 0.2g / L, lanthanum oxide 1.0g / L, indium oxide 0.2g / L, Cationic dispersant active agent 20ml / L, H 2 O is used as a solvent; the pH value of the silver-based multi-element alloy composite solution is adjusted to 11;

[0073] (2) Electroplating:

[0074] Surface treatment of base material: Put the base material polished by sand...

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Abstract

The invention provides a silver-based multicomponent alloy composite solution and a method for preparing a functional coating through the silver-based multicomponent alloy composite solution. The silver-based multicomponent alloy composite solution comprises components with the following concentrations: 40-80 g/L of KAg(CN)2, 45-75 g/L of KCN, 5-50 g/L of K4P2O7.3H2O, 0.2-1.0 g/L of nickel salt (by Ni), 15-25 g/L of sodium potassium tartrate, 0.1-0.8 g/L of antimonic salt (by Sb), 0.2-2 g/L of rare earth oxide and 5-50 ml/L of cationic dispersion activator, wherein H2O serves as a solvent. The pH value of the silver-based multicomponent alloy composite solution is adjusted to range from 9 to 11. The silver consumption of the functional coating is reduced, and the cost performance of a product is improved.

Description

technical field [0001] The invention relates to a silver-based multi-element alloy composite solution and a method for preparing a functional coating by using it. Background technique [0002] As the "heart" of electrical switches, silver-based electrical contacts and rockers are responsible for the functions of connecting, carrying and breaking current, which have a significant impact on electrical performance. It is widely used in various low-voltage switching appliances because of its good electrical performance in making and breaking the contactor. Silver-based electrical contacts and seesaws have a wide range of applications, from power equipment, communication equipment, various sliding contactors, relays to switches for household appliances, automotive relays, time switches, etc., and have broad application prospects. [0003] The electrical contact materials used in my country's electrical products for a long time are mainly pure silver and silver alloys, and some e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/64C25D5/12C25D3/12C25D3/46C25D5/34H01H1/023
CPCC25D3/12C25D3/46C25D3/64C25D5/12C25D5/34H01H1/023
Inventor 薛铭刘建平
Owner 佛山市宇光电气有限公司
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