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Electroforming solution for preparing 3D hard gold and preparation method of 3D hard gold

An electroforming liquid and 3D technology, which is applied in the field of electroforming liquid and 3D hard gold preparation, can solve the problems of poor stability of electroforming liquid and poor mirror brightness of electroforming layer, so as to improve wear resistance and improve the scope of application. , the effect of increasing the scope of application

Inactive Publication Date: 2019-08-09
浙江金卓首饰有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of electroforming solution for preparing 3D hard gold, to solve the problem of poor stability of electroforming solution in the prior art
[0006] The purpose of the present invention is to provide a preparation method of 3D hard gold to solve the problem of poor brightness of the mirror surface of the electroformed layer in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The invention provides an electroforming solution for preparing 3D hard gold, which includes a solute and a solvent, and the solute is composed of components having the following concentrations: 15-25g / L sodium gold sulfite, 80-100g / L Sodium sulfite water, 45-55ml / L hydroxyethylidene diphosphonic acid, 75-85ml / L aminotrimethylidene phosphonic acid, 35-40g / L potassium dihydrogen phosphate, 0.1-0.2g / L antimony potassium tartrate.

[0034] In this way, not only the temperature adjustment range of the electroforming solution can be increased, but also different mold cores can be electroformed, and the application range of the electroforming solution can be increased. At the same time, it can also improve the stability of the electroforming solution, so that the coating formed after electroforming has better mirror brightness and hardness, and prolongs the gloss retention time. Since the electroforming solution does not contain cyanide, it will not cause pollution to operato...

Embodiment 2

[0036] In order to improve the stability of the electroforming solution, this example optimizes the solute disclosed in Example 1, and enumerates the following specific and feasible solutions.

[0037] The invention provides an electroforming solution for preparing 3D hard gold, which includes a solute and a solvent, and the solute is composed of components having the following concentrations: 18-25g / L sodium gold sulfite, 85-95g / L Sodium sulfite water, 47-53ml / L hydroxyethylidene diphosphonic acid, 78-82ml / L aminotrimethylidene phosphonic acid, 36-40g / L potassium dihydrogen phosphate, 0.12-0.2g / L antimony potassium tartrate. Therefore, the stability of the electroforming solution can be improved, so that the plating layer formed after electroforming has better mirror brightness and hardness, and the retention time of the glossiness is prolonged.

Embodiment 3

[0039] In order to improve the stability of the electroforming solution, this example optimizes the solute disclosed in Example 2, and enumerates the following specific and feasible solutions.

[0040] The invention provides an electroforming solution for preparing 3D hard gold, which includes a solute and a solvent, and the solute is composed of components having the following concentrations: 18-22g / L sodium gold sulfite, 88-92g / L Sodium sulfite water, 49-52ml / L hydroxyethylidene diphosphonic acid, 78-80ml / L aminotrimethylidene phosphonic acid, 36-39g / L potassium dihydrogen phosphate, 0.12-0.18g / L antimony potassium tartrate. Therefore, the stability of the electroforming solution can be improved, so that the plating layer formed after electroforming has better mirror brightness and hardness, and the retention time of the glossiness can be prolonged.

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Abstract

The invention relates to an electroforming solution for preparing 3D hard gold and preparation method of a 3D hard gold. The electroforming solution for preparing the 3D hard gold comprises a solute and a solvent, wherein the solute consists of the following components of, in percentage by weight, 15-25 g / L of sodium gold sulfide, 80-100 g / L of anhydrous sodium sulfite, 45-55 ml / L of 1-diphosphonic acid, 75-85 ml / L of amino trimethylene phosphonic acid and 35-40 g / L of potassium phosphate monobasic and 0.1-0.2 g / L of antimony potassium tartrate. Thus, the stability of the electroforming solution can be improved, so that the plating layer formed after electroforming has better mirror surface brightness and hardness, and the maintaining time of the glossiness is prolonged. In addition, no cyanide is contained in the electroforming solution, so that the pollution to operators and the environment are avoided.

Description

technical field [0001] The invention relates to the technical field of jewelry processing, in particular to an electroforming solution for preparing 3D hard gold and a preparation method for 3D hard gold. Background technique [0002] With the improvement of living standards, the demand for gold jewelry is also increasing, not only to meet the appearance requirements in terms of shape, but also to put forward higher requirements for its hardness. However, the hardness of pure gold is very low, and it is difficult to meet the processing requirements of jewelry such as complex shape, fine pattern, hollow carving, etc., and with the extension of wearing time, the jewelry will lose its original luster due to wear and tear, thus reducing the beauty. [0003] At present, in order to meet the modeling requirements of gold jewelry, electroforming is often used to process gold. Since the electroforming liquid used contains potassium gold cyanide, which has certain toxicity, not only...

Claims

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Application Information

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IPC IPC(8): C25D3/48C25D1/10
CPCC25D1/003C25D1/10C25D3/48
Inventor 谭德顺徐斌金征天
Owner 浙江金卓首饰有限公司
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