Method for electroplating steel strip with nickel

A technology of electroplating nickel and steel strip, applied in the field of electroplating nickel steel strip, which can solve the problems of high production energy consumption, high content, poor dispersion ability, etc., and achieve the effect of low cost, high concentration and fast plating speed

Inactive Publication Date: 2010-06-30
SICHUAN CHANGHONG ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the content is too high, the dispersion ability is poor and the production energy consumption is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1: a perforated steel strip with a thickness of 0.1 mm and a width of 23 mm

[0036] (1) Degreasing: All kinds of acidic or alkaline degreasing solutions can be used, the purpose is to remove the oil on the surface of the steel strip.

[0037] (2) Wash with water;

[0038] (3) Cathodic and anode combined electrolysis to remove oil (alkaline solution, the composition is a mixed solution containing sodium hydroxide, sodium carbonate, and trisodium phosphate), and continue to remove uncleaned oil stains.

[0039] (4) Wash with water;

[0040] (5) Acid etching: etching with sulfuric acid 200g / L solution.

[0041] (6) Wash with water;

[0042] (7) Nickel plating:

[0043] The plating solution formula is: NiSO 4 ·7H 2 O 380g / L; H 3 BO 3 40g / L; NaCl 20 / L, sodium lauryl sulfate 0.3g / L. pH 3.5.

[0044] Temperature 55℃, current density 10A / dm 2 . Speed ​​3m / min.

[0045] (8) Wash with water

[0046] (9) Neutralization: Pass the steel strip through a 1% ...

Embodiment 2

[0050] Embodiment 2: electroplating thickness is 0.2mm, the perforated steel strip that width is 25mm

[0051] (1) Degreasing: All kinds of acidic or alkaline degreasing solutions can be used, the purpose is to remove the oil stain on the surface of the steel strip;

[0052] (2) Wash with water;

[0053] (3) Cathodic and anode combined electrolysis to remove oil (alkaline solution, the composition is a mixed solution containing sodium hydroxide, sodium carbonate, and trisodium phosphate), and continue to remove uncleaned oil stains;

[0054] (4) Wash with water;

[0055](5) Acid etching: etching with sulfuric acid 250g / L solution.

[0056] (6) Wash with water;

[0057] (7) Electroplating nickel: the formula of electroplating solution is: NiSO 4 ·7H 2 O 450g / L; H 3 BO 3 41g / L; NaCl 18g / L, sodium lauryl sulfate 0.5g / L. pH 3.8.

[0058] Temperature 60℃, current density 10A / dm 2 . Speed ​​3.5M / min.

[0059] The conveying speed of the steel belt can be adjusted accordi...

Embodiment 3

[0065] Embodiment 3: electroplating thickness is 0.1mm, the punching steel strip that width is 180mm

[0066] (1) Degreasing: All kinds of acidic or alkaline degreasing solutions can be used, the purpose is to remove the oil on the surface of the steel strip.

[0067] (2) Wash with water;

[0068] (3) Cathodic and anode combined electrolysis to remove oil (alkaline solution, the composition is a mixed solution containing sodium hydroxide, sodium carbonate, and trisodium phosphate)

[0069] (4) Wash with water;

[0070] (5) Acid etching: etching with sulfuric acid 250g / L solution.

[0071] (6) Wash with water;

[0072] (7) Electroplating nickel: the formula of electroplating solution is: NiSO 4 ·7H 2 O 460g / L; H 3 BO 3 45g / L; NaCl 22g / L, sodium lauryl sulfate 0.7g / L. pH 4.2.

[0073] Temperature 65℃, current density 12A / dm 2 . Speed ​​4M / min.

[0074] (8) Wash with water

[0075] (9) Neutralization: Pass the steel strip through a 3% sodium hydroxide solution.

[...

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Abstract

The invention relates to a method for electroplating steel strip with nickel, particularly for continuously electroplating perforated steel strip or punched steep strip used for manufacturing the electrode with nickel, aiming at solving the technical problem that the fast electroplated coating is not fine and smooth. Electroplating solution comprises NiSO4.7H2O of being more than 350 g / L and less than or equal to 550 g / L, 20-50 g / L of H3BO3, 5-30 g / L of anodal active agent and 0.2-0.8 g / L of lauryl sodium sulfate. The method for continuously electroplating steel strip with nickel has low cost and good cathodic reduction effect and ensures the fast electroplating speed and the fine and smooth electroplated coating.

Description

technical field [0001] The invention relates to a method for electroplating nickel on a steel strip, and is particularly suitable for the continuous electroplating of nickel on a perforated steel strip for electrode manufacture and a punched steel strip. Background technique [0002] The power supply manufacturing industry widely uses perforated steel strips and punched steel strips with a thickness of less than 0.2mm as electrode connectors or skeletons, and the thickness of nickel plating is 0.5-5μm. The existing production method is nickel sulfamate electroplating. Formula for nickel sulfamate electroplating: nickel sulfamate 300-450g / L, nickel chloride 0-15g / L, boric acid 30-45g / L. Nickel sulfamate plating is characterized by low stress on the coating. Commonly used in functional nickel plating, but its cost is relatively high. Nickel sulfate plating is a relatively low cost method. According to the current price, the price of nickel sulfate is 31-32 yuan / Kg, and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/12C25D5/36
Inventor 张建旭
Owner SICHUAN CHANGHONG ELECTRIC CO LTD
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