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Electroless nickel plating compound brightener and use method thereof

A technology of electroless nickel plating and brightener, applied in the field of electroless nickel plating brightener, can solve the problems of slow light output speed, large porosity, lack of leveling, etc., and achieve the effect of improving brightness

Inactive Publication Date: 2011-09-14
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The brightener developed by the patent CN182757A is used in the low-temperature plating solution, but the low-temperature plating solution is not suitable for industrial production
Moreover, the ingredients of the prepared brightener contain irritating liquids, which do not meet the requirements of environmental protection.
Brightener such as CN1224075 is composed of main brightener, auxiliary brightener and wetting agent, but lacks leveling, slow light speed, large porosity and other problems

Method used

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  • Electroless nickel plating compound brightener and use method thereof
  • Electroless nickel plating compound brightener and use method thereof
  • Electroless nickel plating compound brightener and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] a. Preparation of compound brightener:

[0027] 1. Take a 1L beaker and put in a small amount of water, weigh 2.5 grams of cerium sulfate into the beaker and stir to dissolve completely;

[0028] 2. Pour 30 grams of propynyl alcohol ethoxylate into a beaker and stir evenly;

[0029] 3. Weigh 140 grams of pyridinium salt to dissolve it, pour it into a beaker and stir evenly;

[0030] 4. Weigh 20 grams of propynyl alcohol to dissolve it, pour it into a beaker and stir evenly;

[0031] 5. Add water to make it up to 1L.

[0032] b. Preparation of electroless nickel plating solution:

[0033] 6. Take a 1L beaker and put in a small amount of water, weigh 6 grams of succinic acid into the beaker and stir to dissolve it completely;

[0034] 7. Pour 20 grams of dissolved sodium acetate into the beaker and stir evenly;

[0035] 8. Pour 16mL of lactic acid solution into a beaker and stir, and adjust the pH to 4 during the process;

[0036] 9. Weigh 5 grams of citric acid to ...

Embodiment 2

[0046] a. Preparation of compound brightener:

[0047] 1. Take a 1L beaker and put in a small amount of water, weigh 4 grams of cerium sulfate into the beaker and stir to dissolve it completely;

[0048] 2. Pour 35 grams of propynyl alcohol ethoxylate into a beaker and stir evenly;

[0049] 3. Weigh 130 grams of pyridinium salt to dissolve it, pour it into a beaker and stir evenly;

[0050] 4. Weigh 25 grams of propynyl alcohol to dissolve it, pour it into a beaker and stir evenly;

[0051] 5. Add water to make it up to 1L.

[0052] b. Preparation of electroless nickel plating solution:

[0053] 6. Take a 1L beaker and put in a small amount of water, weigh 7 grams of succinic acid into the beaker and stir to dissolve it completely;

[0054] 7. Pour 22 grams of dissolved sodium acetate into the beaker and stir evenly;

[0055] 8. Pour 14mL of lactic acid solution into a beaker and stir, and adjust the pH to 4 during the process;

[0056] 9. Weigh 5.5 grams of citric acid ...

Embodiment 3

[0065] a. Preparation of compound brightener:

[0066] 1. Take a 1L beaker and put in a small amount of water, weigh 2 grams of cerium sulfate into the beaker and stir to dissolve completely;

[0067] 2. Pour 30 grams of propynyl alcohol ethoxylate into a beaker and stir evenly;

[0068] 3. Weigh 140 grams of pyridinium salt to dissolve it, pour it into a beaker and stir evenly;

[0069] 4. Weigh 20 grams of propynyl alcohol to dissolve it, pour it into a beaker and stir evenly;

[0070] 5. Add water to make it up to 1L.

[0071] b. Preparation of electroless nickel plating solution:

[0072] 6. Take a 1L beaker and put in a small amount of water, weigh 5 grams of succinic acid into the beaker and stir to dissolve it completely;

[0073] 7. Pour 25 grams of dissolved sodium acetate into the beaker and stir evenly;

[0074] 8. Pour 15mL of lactic acid solution into a beaker and stir, and adjust the pH to 4 during the process;

[0075] 9. Weigh 5.5 grams of citric acid to ...

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PUM

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Abstract

The invention discloses an electroless nickel plating compound brightener and a use method thereof. Each liter of aqueous solution of the brightener contains 2-4g of cerous sulfate, 10-35g of propynol ethoxylate, 100-150g of pyridinium and 14-20g of propynol. Compared with the prior art, the electroless nickel plating compound brightener can obviously improve the brightness of the electroless plating and can not affect the stability of the plating solution for electroless nickel plating.

Description

technical field [0001] The invention relates to the technical field of a metal material surface chemical treatment agent and a method for using the same, in particular to a brightener for electroless nickel plating and a method for using the same. Background technique [0002] Electroless nickel plating is based on the mechanism of self-catalytic reaction, and metal deposition reaction occurs under certain process conditions. It has uniform coating, high hardness, good wear resistance, good corrosion resistance, and convenient operation. All industrial sectors are increasingly used. However, since the general chemical nickel plating layer is a semi-bright coating, it cannot be used as a decorative coating. Therefore, improving the brightness of the coating is a big problem for electroless nickel plating. [0003] The stability of the plating solution is the core issue of electroless nickel plating. If the brightener is not properly prepared, the service life of the plating...

Claims

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Application Information

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IPC IPC(8): C23C18/36
Inventor 宋仁军程功豆忠颖刘昌权
Owner CHERY AUTOMOBILE CO LTD
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