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A kind of 3D hard gold electroforming liquid, its preparation method and its application

An electroforming fluid and hard gold technology, applied in the field of hard gold, can solve the problems of deep holes, insufficient hardness, poor walking ability, etc., and achieve the effect of thin thickness and good walking ability.

Active Publication Date: 2019-01-15
NANJING INST OF PROD QUALITY INSPECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the defects of 3D hard gold in the prior art, such as insufficient hardness during production, poor throwing power, easy holes in deep positions, affecting product quality and yield, the present invention provides a 3D hard gold electroforming solution , its preparation method and its application can produce hard gold products with high hardness, good positioning ability and temperability

Method used

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  • A kind of 3D hard gold electroforming liquid, its preparation method and its application
  • A kind of 3D hard gold electroforming liquid, its preparation method and its application
  • A kind of 3D hard gold electroforming liquid, its preparation method and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1 (taking 100 liters of electroforming cylinders as an example)

[0028] The formula of HS-24 hard gold electroforming solution is as follows:

[0029]

[0030] The control parameters are as follows:

[0031]

[0032] The preparation method and electroforming method of above-mentioned HS-24 hard gold electroforming liquid are as follows:

[0033] Step 1: 8300 grams of conductive salt, 2800 grams of buffer salt, 800 grams of chelating agent and 250 grams of hardening agent are dissolved in 80 liters of pure water;

[0034] Step 2: filter the solution gained in step 1 with gac;

[0035] Step 3: 2000 grams of potassium aurous cyanide are added in the filtrate of step 2 gained;

[0036] Step 4: add pure water to 100 liters;

[0037] Step 5: adjust the pH of the solution obtained in step 4 to 6.8-7.2;

[0038] Step 6: Take 590 pieces of wax coated with conductive silver oil, install a hanging cage, and carry out electroforming operation. The cylinder is...

Embodiment 2

[0046] Embodiment 2 (taking 100 liters of electroforming cylinders as an example)

[0047] Basically the same as Example 1, the difference is: the formula of HS-24 hard gold electroforming solution is as follows:

[0048]

[0049] The control parameters are as follows:

[0050]

[0051] The preparation method and electroforming method of above-mentioned HS-24 hard gold electroforming liquid are as follows:

[0052] Step 1: 9000 grams of conductive salt, 3000 grams of buffer salt, 1000 grams of chelating agent and 260 grams of hardening agent are dissolved in 80 liters of pure water;

[0053] Step 2: filter the solution gained in step 1 with gac;

[0054] Step 3: 2200 grams of potassium aurous cyanide are added in the filtrate of step 2 gained;

[0055] Step 4: add pure water to 100 liters;

[0056] Step 5: adjust the pH of the solution obtained in step 4 to 6.8-7.2;

[0057] Step 6: Take 590 pieces of wax coated with conductive silver oil, install a hanging cage, an...

Embodiment 3

[0065] Embodiment 3 (taking 100 liters of electroforming cylinders as an example)

[0066] Basically the same as Example 1, the difference is: the formula of HS-24 hard gold electroforming solution is as follows:

[0067]

[0068] The control parameters are as follows:

[0069]

[0070]

[0071] The preparation method of above-mentioned HS-24 hard gold electroforming solution is as follows:

[0072] Step 1: 7500 grams of conductive salt, 2500 grams of buffer salt, 500 grams of chelating agent and 240 grams of hardening agent are dissolved in 80 liters of pure water;

[0073] Step 2: filter the solution gained in step 1 with gac;

[0074] Step 3: 1800 grams of potassium aurous cyanide are added in the filtrate of step 2 gained;

[0075] Step 4: add pure water to 100 liters;

[0076] Step 5: adjust the pH of the solution obtained in step 4 to 6.8-7.2;

[0077] Step 6: Take 590 pieces of wax coated with conductive silver oil, install a hanging cage, and carry out elec...

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Abstract

The invention discloses a 3D hard gold electroforming solution and a preparation method and application thereof. The 3D hard gold electroforming solution comprises the raw materials of 18-22 g / l of potassium gold cyanide, 75-90 g / l of conducting salt, 25-30 g / l of buffer salt, 5-10 g / l of a chelating agent, and 2.4-2.6 g / l of a hardening agent. Through the 3D hard gold electroforming solution, a hard gold product which is high in hardness, small in thickness, good in throwing power and capable of being tempered can be produced, and the product yield reaches 100%; and according to the gold prepared through the 3D hard gold electroforming solution, the hardness is not less than 150 Hv, the thickness is not larger than 151 [mu]m, the relative purity of the gold is not less than 99.96%, and the gold using amount (smaller than 80% of gold used in an existing electroforming solution) is small. The preparation method is simple.

Description

technical field [0001] The invention relates to a 3D hard gold electroforming solution, a preparation method and application thereof, and belongs to the field of hard gold. Background technique [0002] 3D (Three Dimension) hard gold is a new type of product that breaks the traditional manufacturing process. In recent years, with the efforts of the industry, it has shown the momentum of a hundred flowers blooming and a hundred schools of thought contending. The 3D hard gold is three-dimensional and fashionable, and it is about three times the weight of ordinary gold. One-third, deeply loved by young friends. Now 3D hard gold often has insufficient hardness during production, poor throwing power, and deep holes are easy to break, which affects product quality and yield. Contents of the invention [0003] In order to solve the defects of 3D hard gold in the prior art, such as insufficient hardness during production, poor throwing power, easy holes in deep positions, affecti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D1/00
CPCC25D1/003
Inventor 王浩杰杨鹔黄良平张帆
Owner NANJING INST OF PROD QUALITY INSPECTION