Lemon 18K gold and manufacturing method thereof

A manufacturing method and a lemon-colored technology, applied in the field of lemon-colored 18K gold and its manufacturing, can solve the problems of high cost, limited commercial application, difficult iridium alloying, etc.

Inactive Publication Date: 2012-03-28
新宝珠宝(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the materials disclosed in the prior art, it is generally believed that iridium is used as a grain refiner for gold alloys. The difficulty lies in that the alloying of iridium is extremely difficult, and whether an iridium-containing master alloy with good dispersibility can be prepared is the key
Because it is very difficu

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: a kind of lemon-colored 18K gold of this preferred embodiment and its manufacture method, contain the gold of 75% by mass fraction ratio and the filling joint of 25% by mass fraction ratio, described filling joint component comprises Silver, copper, zinc and iridium, it is characterized in that the ratio of the mass fractions of silver and zinc to the mass fractions of copper in the filling mouth is 1.2, and the mass fraction ratio of zinc is 2.5% , the mass fraction ratio that described iridium powder occupies is 0.005%, and the order number of iridium powder is 50 orders, can uniquely determine that silver is 11.134%, zinc is 2.5%, zinc is 2.5%, and by mass fraction ratio silver is 11.134% according to the above limiting conditions. Copper is 11.361%, iridium is 0.005%, and its manufacturing method includes the following steps:

[0019] A, get 75% gold by mass fraction ratio and 11.134% by mass fraction ratio silver, zinc is 2.5%, copper is 11.361%, irid...

Embodiment 2

[0023] Embodiment two: a kind of lemon-colored 18K gold of this preferred embodiment and its manufacture method, contain the gold of 75% by mass fraction ratio and the joint mouth of 25% by mass fraction ratio, described mouth joint component comprises Silver, copper, zinc and iridium, it is characterized in that the ratio of the mass fractions of silver and zinc to the mass fractions of copper in the filling mouth is 1.27, and the mass fraction ratio of zinc is 3% , the mass fraction ratio that described iridium powder occupies is 0.01%, and the order number of iridium powder is 25 orders, can uniquely determine that silver is 10.981%, zinc is 3.0%, zinc is 3.0%, and silver is 10.981% by mass fraction ratio according to the above limiting conditions. Copper is 11.009%, iridium is 0.01%, and its manufacturing method includes the following steps:

[0024] A, get 75% gold by mass fraction ratio and silver is 10.981% by mass fraction ratio, zinc is 3%, copper is 11.009%, iridium ...

Embodiment 3

[0028] Embodiment three: a kind of lemon-colored 18K gold of this preferred embodiment and its manufacture method, contain the gold of 75% by mass fraction ratio and the filling mouth of 25% by mass fraction ratio, described mouth filling component comprises Silver, copper, zinc and iridium, it is characterized in that the ratio of the mass fractions of silver and zinc to the mass fractions of copper in the filling mouth is 1.30, and the mass fraction ratio of zinc is 3.5% , the mass fraction ratio that described iridium occupies is 0.011%, and the order number of iridium powder is 50 orders, can uniquely determine that silver is 10.624%, zinc is 3.5%, copper is 10.624% by mass fraction ratio in the described mending mouth according to above limiting condition. It is 10.865% and iridium is 0.011%, and its manufacturing method includes the following steps:

[0029] A, get 75% gold by mass fraction ratio and 10.624% by mass fraction ratio silver, zinc is 3.5%, copper is 10.865%,...

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Abstract

The invention discloses lemon 18K gold and a manufacturing method thereof. The lemon 18K gold contains 75% of gold in mass percentage and 25% of repaired mouth in mass percentage; the repaired mouth comprises silver, copper, zinc and iridium powder; the ratio of the silver and the zinc to the copper in mass percentage is 1.2-1.3; the mass percentage of the zinc is 2.5-3.5%; and the mass percentage of the iridium powder is 0.004-0.012%. The manufacturing method comprises the steps of burdening, melting, refining and casting; in the refining process, mechanical disturbance is added; and a mouldis cast after being heated to 400-600DEG C. Through the invention, the problem that the traditional lemon 18K gold is bad in comprehensive mechanical property is solved.

Description

technical field [0001] The invention relates to a lemon-colored 18K gold and a manufacturing method thereof, belonging to the category of colored gold alloys and manufacturing methods thereof. Background technique [0002] Gold alloys for jewelry are usually represented by K, and 24K is called pure gold or ninety-nine gold, with a content of 99.99%. Common jewelry uses gold with a gold content of 75%, which is called 18K gold. 25% of a piece of 18K gold jewelry is Ni, Cu, Zn, Ag and other metals. These other metals used to produce gold alloys are called joints in the jewelry industry. Colored gold alloy is a common gold alloy for jewelry. Most of the so-called colored gold alloys are based on Au-Ag-Cu(-Zn) alloys. For gold alloys used in jewelry, color is one of the most important performance indicators. The color of the gold alloy depends on its reflectivity and the frequency of the incident light, essentially the energy band transition mechanism is at work. The color o...

Claims

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Application Information

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IPC IPC(8): C22C5/02C22C1/02
Inventor 刘国生
Owner 新宝珠宝(深圳)有限公司
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