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A kind of electroless plating solution and environment-friendly alloy surface self-catalysis treatment method

A technology of chemical plating solution and complexing agent, which is applied in the field of chemical plating, can solve the problems of poor corrosion resistance of plated parts, low deposition rate, microscopic surface flatness of plated parts, that is, poor coating morphology, etc., to improve performance, deposit Improve the speed and improve the shape of the plated parts

Active Publication Date: 2020-03-10
MIANYANG HIGH NEW DISTRICT TIANLI MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of this invention is to provide a kind of electroless plating solution, can solve when using MBT2-mercaptobenzothiazole as stabilizer, the problem of poor corrosion resistance of plated parts, microscopic surface flatness of plated parts, i.e. poor coating appearance and low deposition rate

Method used

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  • A kind of electroless plating solution and environment-friendly alloy surface self-catalysis treatment method
  • A kind of electroless plating solution and environment-friendly alloy surface self-catalysis treatment method
  • A kind of electroless plating solution and environment-friendly alloy surface self-catalysis treatment method

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Effect test

Embodiment 1

[0036] An electroless plating solution comprising the following components:

[0037] Deionized water;

[0038] Nickel salt nickel sulfate 25g / L; sodium hypophosphite 30g / L; lactic acid 18g / L;

[0039] Complexing agent sodium citrate 7g / L; buffering agent sodium acetate 15g / L;

[0040] Stabilizer MBT2-Mercaptobenzothiazole 1.5mg / L;

[0041] Stabilizer additive methylaminopropiophenone 0.2g / L; aspartame 0.1g / L.

Embodiment 2

[0043] An electroless plating solution comprising the following components:

[0044] Nickel salt nickel nitrate 22g / L; sodium hypophosphite 28g / L; lactic acid 16g / L;

[0045] Complexing agent sodium tartrate 6g / L; buffering agent sodium pyrophosphate 12g / L;

[0046] Stabilizer MBT2-mercaptobenzothiazole 2mg / L;

[0047] Stabilizer auxiliary methylaminopropiophenone 0.3g / L; Aspartame 0.1g / L;

[0048] Surfactant sodium dodecylbenzene sulfonate 3mg / L; brightener 1,4 butynediol 2mg / L.

Embodiment 3

[0050] An environment-friendly alloy surface autocatalytic treatment method, comprising the following steps:

[0051] (1) Preparation of electroless plating solution: Dissolve nickel salt, sodium hypophosphite and complexing agent in deionized water respectively, then mix the aqueous solution of nickel salt and the aqueous solution of complexing agent, and then add aqueous solution of sodium hypophosphite; then Add lactic acid, stabilizer MBT and stabilizer additives methylaminopropiophenone and aspartame, finally add surfactant and brightener; obtain chemical plating solution;

[0052] (2) Add concentrated ammonia water or dilute sulfuric acid to the electroless plating solution to adjust the pH to 4~5; then heat to 80°C~90°C, place the pretreated and activated alloy plating in the plating solution for electroless plating to the alloy surface The coating thickness reaches 30 microns.

[0053] 1. The effect of different stabilizers on the coating performance of the plated par...

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Abstract

The invention discloses an electroless plating solution. The electroless plating solution comprises 20 g / L-30 g / L of nickel salt, 20 g / L-40 g / L of sodium hypophosphite, 15 g / L-20 g / L of lactic acid, 5g / L-10 g / L of a complexing agent, 10 g / L-20 g / L of a buffering agent and 1 mg / L-3 mg / L of MBT2-mercaptobenzothiazole as a stabilizer. In addition, the invention further discloses an environmentally friendly alloy surface autocatalysis treatment method. The plating solution is in an electroless plating mode, compared with an electroplating mode, the electroless plating mode reduces pollutants andis more environmentally friendly; and meanwhile, electroless plating is a solution autocatalysis process, loss of electric energy can be reduced, an alloy surface can be nickel-plated, and thus, the property of a plated piece is improved.

Description

technical field [0001] The invention relates to the technical field of electroless plating, in particular to an electroless plating solution and an environment-friendly alloy surface autocatalytic treatment method. Background technique [0002] At present, electroplating is often used for metal surface treatment in the market. During the electroplating process, metal ions in the plating solution are reduced to metal atoms by electrode reaction under the action of an external electric field, and the metal deposition process is carried out on the cathode. The electroplating process will be limited by the current distribution and the shape of the plated piece. When the shape of the plated piece is complex, the coating thickness on the surface of the plated piece will be uneven, the anti-salt spray performance is poor, the coating is sparse, and the hardness is low, which makes the chemical and physical properties It is poor, and the discharged wastewater often contains metal io...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/34
CPCC23C18/34
Inventor 华家本李斌
Owner MIANYANG HIGH NEW DISTRICT TIANLI MACHINERY