Environment-friendly electroplating liquid and electroplating process

An electroplating process and electroplating solution technology, which is applied in the field of environmental protection electroplating solution and electroplating process, can solve pollution and other problems, achieve the effects of reducing production costs, preventing hydrogen embrittlement, and harmless to the human body

Inactive Publication Date: 2015-11-04
太仓市金鹿电镀有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at the same time, it also brings great pollution problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] A kind of environment-friendly electroplating solution, described electroplating solution consists of:

[0057] Chromium formate: 0.25mol / L;

[0058] Ammonium formate: 0.15 mol / L;

[0059] Urea: 0.15 mol / L;

[0060] Malic acid: 0.05 mol / L;

[0061] Boric acid: 65 g / L;

[0062] Ammonium sulfate: 155g / L;

[0063] Sodium chloride: 8.5 g / L;

[0064] Chromium displacement agent: 1.5g / L; The chromium displacement agent in this embodiment can adopt the chromium displacement agent of XG-501;

[0065] Rare earth additive: 1.0 g / L; The rare earth additive in this embodiment can adopt the rare earth chromium plating additive of CF-201 of Yixing Xinxin Institute of Rare Earth Applied Technology;

[0066] Sodium lauryl sulfate: 0.15 g / L;

[0067] Sodium thiosulfate: 0.15 g / L.

[0068] A kind of electroplating process, comprises the steps:

[0069] (1) Pre-treatment: Pre-treat the items that need to be electroplated to remove the surface impurities of the items. The specific...

Embodiment 2

[0091] A kind of environment-friendly electroplating solution, described electroplating solution consists of:

[0092] Chromium formate: 0.4mol / L;

[0093] Ammonium formate: 0.3 mol / L;

[0094] Urea: 0.3 mol / L;

[0095] Malic acid: 0.1 mol / L;

[0096] Boric acid: 60 g / L;

[0097] Ammonium sulfate: 160 g / L;

[0098] Sodium chloride: 9 g / L;

[0099] Chromium displacement agent: 2 g / L; The chromium displacement agent in this embodiment can adopt the chromium displacement agent of XG-501;

[0100] Rare earth additive: 1.25 g / L; The rare earth additive in this embodiment can adopt the rare earth chrome plating additive of CF-201 of Yixing Xinxin Institute of Rare Earth Applied Technology;

[0101] Sodium lauryl sulfate: 0.2 g / L;

[0102] Sodium thiosulfate: 0.2 g / L.

[0103] A kind of electroplating process, comprises the steps:

[0104] (1) Pre-treatment: Pre-treat the items that need to be electroplated to remove the surface impurities of the items. The specific pre-trea...

Embodiment 3

[0126] A kind of environment-friendly electroplating solution, described electroplating solution consists of:

[0127] Chromium formate: 0.55mol / L;

[0128] Ammonium formate: 0.45 mol / L;

[0129] Urea: 0.45 mol / L;

[0130] Malic acid: 0.15 mol / L;

[0131] Boric acid: 75 g / L;

[0132] Ammonium sulfate: 165 g / L;

[0133] Sodium chloride: 9.5 g / L;

[0134] Chromium displacement agent: 2.5 g / L; The chromium displacement agent in this embodiment can adopt the chromium displacement agent of XG-501;

[0135] Rare earth additive: 1.5 g / L; The rare earth additive in this embodiment can adopt the rare earth chrome plating additive of CF-201 of Yixing Xinxin Institute of Rare Earth Applied Technology;

[0136] Sodium lauryl sulfate: 0.25 g / L;

[0137] Sodium thiosulfate: 0.25 g / L.

[0138] A kind of electroplating process, comprises the steps:

[0139] (1) Pre-treatment: Pre-treat the items that need to be electroplated to remove the surface impurities of the items. The specific...

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Abstract

The invention provides environment-friendly electroplating liquid. The environment-friendly electroplating liquid comprises 0.25-0.55 mol / L of chromic formate, 0.15-0.45 mol / L of ammonium formate, 0.15-0.45 mol / L of urea, 0.05-0.15 mol / L of malic acid, 65-75 g / L of boric acid, 155-165 g / L of ammonium sulfate, 8.5-9.5 g / L of sodium chloride, 1.5-2.5 g / L of a chromium walking agent, 1.0-1.5 g / L of a rare earth addition, 0.15-0.25 g / L of lauryl sodium sulfate and 0.15-0.25 g / L of sodium thiosulfate. The invention further provides an electroplating process which includes pretreatment, electroplating, dehydrogenation, hydrophobic treatment, washing and drying. By the adoption of the electroplating liquid and the electroplating process, the electroplating effect is good, and the electroplating liquid does not contain hexavalent chromium and is small in toxin and environmentally friendly.

Description

technical field [0001] The invention relates to an environment-friendly electroplating solution and an electroplating process, belonging to the field of chemical electroplating. Background technique [0002] Electroplating is the process of obtaining a metal deposit on a solid surface by electrochemical means. As an important means of traditional surface engineering, electroplating technology has long been used to provide a corrosion-resistant protective layer and a decorative decorative layer for the surface of the workpiece; or to change the surface properties of the base material to obtain metal or Alloy overlay. Due to the development of aerospace and nuclear material engineering industries and electronic information industries, electroplating methods have been used to prepare different types of new composite materials, including particle-dispersed metal composite materials, short fibers, long fiber winding, whisker-reinforced materials, Layered composite materials and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/06
Inventor 支建明
Owner 太仓市金鹿电镀有限公司
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