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Manufacturing method of 18K gold and 18K gold jewelry

A production method and technology for gold jewelry, applied in clothing, jewelry, applications, etc., can solve the problems of easily revealing the original color of K gold, easy fading of jewelry, poor gloss, etc., and achieve easy decolorization, pure color, and good oxidation resistance. Effect

Inactive Publication Date: 2017-12-01
SHENZHEN FUQI JEWELRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a problem in the existing 18K gold jewelry. The jewelry is easy to fade, easy to wear, has poor gloss, and easily reveals the original color of K gold, causing consumers to think that they have bought fakes; Thickening the 18K gold jewelry, although the normal use time of the 18K gold jewelry has been extended to a certain extent, but the same problem will still occur after a long period of use

Method used

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  • Manufacturing method of 18K gold and 18K gold jewelry
  • Manufacturing method of 18K gold and 18K gold jewelry
  • Manufacturing method of 18K gold and 18K gold jewelry

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] An 18K gold made from the following raw materials by weight:

[0030]

[0031] Further, the more specific parts by weight of the above raw materials are as follows:

[0032]

[0033] Furthermore, the more specific parts by weight of the above raw materials are as follows:

[0034]

[0035]

[0036] To sum up: the above-mentioned metal raw materials are used to make 18K gold. The 18K gold produced is pure in color and has very good gloss. It is not easy to fade after long-term use. It does not change color when burned with an open flame. It has excellent oxidation resistance. it is good.

Embodiment 2

[0038] A method for making 18K gold jewelry includes the following steps:

[0039] a. Prepare the raw materials according to the metal components and their weight parts ratio as in Example 1;

[0040] b. The raw materials are smelted under the protection of inert gas;

[0041] c. Pour the molten metal liquid into a forming mold under the protection of inert gas, and cast it to form a blank;

[0042] d. Carry out fine clamping, laser welding, repairing and shaping, fine grinding and polishing of the blank to make semi-finished jewelry;

[0043] e. Electroplating of semi-finished jewelry products to restore the external color to the true color of gold;

[0044] f. Surface treatment of semi-finished jewelry after electroplating to form finished jewelry.

[0045] Preferably, in step b and step c, the inert gas is nitrogen, helium or argon, or a mixture of nitrogen and argon, or a mixture of helium and argon; the mixture of nitrogen and argon consists of 7-9 parts by weight of nitrogen and 1-...

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Abstract

The invention discloses a manufacturing method of 18K gold and 18K gold jewelry. The manufacturing method comprises the following steps of (a) preparing raw materials according to metal components of the raw materials and the weight part ratio of the metal components; (b) smelting the raw materials under the protection of inert gases; (c) pouring molten liquid metal to a forming die under the protection of inert gases, and casting so as to form a blank; (d) repairing the blank so as to prepare semi-finished jewelry; (e) electroplating the semi-finished jewelry, so that the external color of the semi-finished jewelry returns to be golden; and (f) performing surface treatment on the electroplated semi-finished jewelry so as to form finished jewelry. According to the manufacturing method of the 18K gold jewelry, smelting is performed by adopting the metal components and matching of the raw materials, and finally, electroplating treatment is performed, so that the color of the surface of the prepared 18K gold jewelry is the same as that of gold, the surface of the prepared 18K gold jewelry is difficult to decolor, and the prepared 18K gold jewelry has the advantages of elasticity, difficulty in deformation and high hardness.

Description

Technical field [0001] The invention relates to a gold alloy, in particular to a manufacturing method of 18K gold and 18K gold jewelry. Background technique [0002] 18K gold refers to a metal alloy with a gold content of not less than 75%. [0003] K gold jewelry is currently a commonly used jewelry in the international and domestic markets, with a very high market share. However, the existing 18K gold jewelry has a problem. The jewelry is easy to fade, easy to wear, poor gloss, and easy to reveal the original color of K gold, causing consumers to think that they are buying fakes. In order to solve the above problems, in the prior art, the electroplating process Thickening of 18K gold jewelry may extend the normal use time of 18K gold jewelry to a certain extent, but the same problem will still occur after a long period of use. Summary of the invention [0004] The purpose of the present invention is to overcome the defects of the prior art, and provide a 18K gold with stable sur...

Claims

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Application Information

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IPC IPC(8): C22C5/02C25D3/48A44C27/00
CPCC22C5/02A44C27/003A44C27/006C25D3/48
Inventor 庄清鑫
Owner SHENZHEN FUQI JEWELRY
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