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
View PDF25 Cites 8 Cited by
  • 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 ar

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0032] Example 1:

[0033] The present invention provides an electroforming solution for preparing 3D hard gold, which includes a solute and a solvent. The solute is composed of components with the following concentrations: 15-25g / L sodium gold sulfite, 80-100g / L without Sodium sulfite in water, 45~55ml / L hydroxyethylidene diphosphonic acid, 75~85ml / L aminotrimethylphosphonic acid, 35~40g / L potassium dihydrogen phosphate, 0.1~0.2g / L potassium antimony tartrate.

[0034] In this way, not only can the temperature adjustment range of the electroforming liquid be increased, so that different mold cores can be electroformed, and the application range of the electroforming liquid can be increased. At the same time, the stability of the electroforming liquid can be improved, so that the plating layer formed after electroforming has better mirror brightness and hardness, and the gloss retention time is prolonged. Since the electroforming liquid does not contain cyanide, it will not cause ...

Example Embodiment

[0035] Example 2:

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

[0037] The present invention provides an electroforming solution for preparing 3D hard gold, which includes a solute and a solvent. The solute is composed of components having the following concentrations: 18-25g / L sodium gold sulfite, 85-95g / L without Sodium sulfite, 47~53ml / L hydroxyethylidene diphosphonic acid, 78~82ml / L aminotrimethylphosphonic acid, 36~40g / L potassium dihydrogen phosphate, 0.12~0.2g / L potassium antimony tartrate. As a result, the stability of the electroforming liquid can be improved, so that the plating layer formed after electroforming has better mirror brightness and hardness, and the gloss retention time is prolonged.

Example Embodiment

[0038] Example 3:

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

[0040] The present invention provides an electroforming solution for preparing 3D hard gold, which includes a solute and a solvent. The solute is composed of components having the following concentrations: 18-22g / L sodium gold sulfite, 88-92g / L without Sodium sulfite, 49-52ml / L hydroxyethylidene diphosphonic acid, 78-80ml / L aminotrimethylphosphonic 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 gloss retention time is prolonged.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Current densityaaaaaaaaaa
Login to view more

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap