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A kind of medium phosphorous electroless nickel plating liquid and application

A technology of electroless nickel plating solution and sodium hypophosphite, applied in the field of electroless plating, can solve the problems of short service life of the plating solution and slow electroless plating speed of the electroless nickel plating solution, and achieve good coating adhesion, long service life and good synergy effect of action

Active Publication Date: 2022-04-01
光山白鲨针布有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent document CN200810122257.9 discloses an acidic electroless nickel plating solution, using nickel sulfate hexahydrate, sodium hypophosphite, complexing agent and other raw materials, the electroless plating speed of the obtained electroless nickel plating solution is relatively slow, and the service life of the plating solution is relatively short

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0161] The preparation method of the A agent is to mix the components in the A agent according to the amount, add water and configure it to 200L, and set it aside.

[0162] The preparation method of the B agent is to mix the components in the B agent according to the amount, add water and configure it to 200L, and set it aside.

[0163] The preparation method of the C agent is to mix the components in the C agent according to the amount, add water and configure it to 200L, and set it aside.

[0164] In some preferred embodiments, the concentration of ammonia water in the agents B and C is 25-30wt%.

[0165] In some more preferred embodiments, the concentration of ammonia water in the agents B and C is 28wt%.

[0166] In some preferred embodiments, in the A agent and C agent, the composition of the light agent is: in one liter of aqueous solution, containing 6g of lead acetate, 9g of cadmium sulfate, 0.01g of butynyl alcohol, and 0.2g of polyethylene glycol .

[0167] In som...

Embodiment 1

[0184] Embodiment 1 of the present invention provides a medium phosphorus electroless nickel plating solution, including A agent, B agent, and C agent.

[0185] In each 200L dose A, it contains:

[0186] Lactic acid: 6.2kg;

[0187] Borax: 9.2kg;

[0188] Nickel sulfate: 87kg;

[0189] Thiourea: 30g;

[0190] Brightener: 13.4mL.

[0191] In every 200L dose B, it contains:

[0192] Lactic acid: 15kg;

[0193] Malic acid: 25kg;

[0194] Glycine: 1.3kg;

[0195] Borax: 8.0kg;

[0196] Sodium hypophosphite: 37.2kg;

[0197] Sodium acetate: 10kg;

[0198] Ammonia water: 15L;

[0199] Sodium thiocyanide: 20g;

[0200] Stabilizer: 2.8g;

[0201] Wetting agent: 26mL.

[0202] In each 200L dose C, it contains:

[0203] Malic acid: 18kg;

[0204] Adipic acid: 20kg;

[0205] Sodium acetate: 8.4kg;

[0206] Borax: 2kg;

[0207] Sodium hydroxide: 3kg;

[0208] Sodium hypophosphite: 100kg;

[0209] Ammonia water: 5L;

[0210] Sodium thiocyanate: 10g;

[0211] Stabilizer...

Embodiment 2

[0221] Embodiment 2 of the present invention provides a medium phosphorus electroless nickel plating solution, including A agent, B agent, and C agent.

[0222] In each 200L dose A, it contains:

[0223] Lactic acid: 10kg;

[0224] Borax: 12kg;

[0225] Nickel sulfate: 80kg;

[0226] Thiourea: 25g;

[0227] Lighting agent: 10mL.

[0228] In every 200L dose B, it contains:

[0229] Lactic acid: 20kg;

[0230] Malic acid: 20kg;

[0231] Glycine: 2kg;

[0232] Borax: 10kg;

[0233] Sodium hypophosphite: 35kg;

[0234] Sodium acetate: 5kg;

[0235] Ammonia water: 10L;

[0236] Sodium thiocyanide: 5g;

[0237] Stabilizer: 1g;

[0238] Wetting agent: 35mL.

[0239] In each 200L dose C, it contains:

[0240] Malic acid: 15kg;

[0241] Adipic acid: 15kg;

[0242] Sodium acetate: 15kg;

[0243] Borax: 5kg;

[0244] Sodium hydroxide: 1kg;

[0245] Sodium hypophosphite: 120kg;

[0246] Ammonia water: 1L;

[0247] Sodium thiocyanide: 20g;

[0248] Stabilizer: 5g;

...

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Abstract

The invention relates to the technical field of electroless plating, more specifically, the invention relates to a medium phosphorus electroless nickel plating solution and its application. The medium phosphorus electroless nickel plating liquid of the present invention comprises A agent, B agent, C agent, through rational allocation, has better synergism between each component, the electroless plating speed of prepared gained electroless nickel plating liquid is faster, The plating layer of the plated product has good adhesion, and the service life of the nickel plating solution is long.

Description

technical field [0001] The invention relates to the technical field of electroless plating, more specifically, the invention relates to a medium phosphorus electroless nickel plating solution and its application. Background technique [0002] The method of plating a layer of nickel on metal or some non-metal by electrolysis or chemical method is called nickel plating. Nickel plating is divided into electroplating nickel plating and chemical nickel plating. Nickel electroplating is in an electrolyte composed of nickel salt (called main salt), conductive salt, pH buffer, and wetting agent. The anode uses metallic nickel, the cathode is the plated part, and direct current is applied to the cathode (plated part). Deposit a uniform and dense nickel coating. Bright nickel is obtained from the bath with brightener, and dark nickel is obtained from the electrolyte without brightener. Electroless plating is also called electroless plating, and can also be called autocatalytic plat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/36
CPCC23C18/36
Inventor 张境泉张永钢
Owner 光山白鲨针布有限公司