Gold-bearing imitation-gold copper alloy and preparation method thereof

A technology of copper alloy and imitation gold, which is applied in the field of gold-containing gold-imitation copper alloy and its preparation, and imitation gold-copper alloy. Not easy to cut and other problems, to improve the use value, easy to process, and conducive to processing and forming

Inactive Publication Date: 2013-01-09
HANGZHOU ZHENDA HARDWARE MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is mainly to solve the difficult-to-cut performance of copper alloy, so as to obtain an easy-to-cut copper alloy. Although the copper alloy has certain anti-discoloration performance in artificial sweat or salt spray atmosphere, but because it is a white copper alloy , on the one hand, it cannot meet the requirements of gold-like copper alloy; on the other hand, it cannot reflect its anti-tarnish performance well.

Method used

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  • Gold-bearing imitation-gold copper alloy and preparation method thereof

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Effect test

Embodiment 1

[0032] A gold-containing imitation gold-copper alloy, the alloy is mainly composed of the following raw materials in weight percentage:

[0033] Au: 0.5%; Zn: 25%; Al: 2.0%; Si: 0.05; the balance is Cu, and the sum of weight percentages of all elements is 100%.

[0034] The described gold-containing imitation gold-copper alloy is prepared according to the following method:

[0035] A. Smelting: Weigh each raw material according to the above weight percentage, clean the above raw materials with acid, which can effectively remove the oxide layer on the metal surface, dry it after cleaning with acid, and then load it in batches In the crucible of the vacuum medium-frequency induction melting furnace, the temperature is controlled at 1225°C to melt to clear liquid, then melted and stirred for 30 minutes, and then poured into a Ф60 water-cooled red copper crystallizer to obtain gold-containing imitation gold alloy ingots;

[0036] B, annealing treatment: under the condition that t...

Embodiment 2

[0039] A gold-containing imitation gold-copper alloy, the alloy is mainly composed of the following raw materials in weight percentage:

[0040] Au: 0.5%; Zn: 25%; Al: 5%; In: 0.4%; Ni: 1%; the balance is Cu, and the sum of the weight percentages of all elements is 100%.

[0041] The described gold-containing imitation gold-copper alloy is prepared according to the following method:

[0042] A. Smelting: Weigh each raw material according to the above weight percentage, clean the above raw materials with acid, which can effectively remove the oxide layer on the metal surface, dry it after cleaning with acid, and then load it in batches In the crucible of the vacuum intermediate frequency induction melting furnace, the temperature is controlled at 1200 ° C to melt to clear liquid, then melt and stir for 60 minutes, and then pour it into a Ф70 water-cooled red copper crystallizer to obtain gold-containing imitation gold alloy ingots;

[0043] B, annealing treatment: under the co...

Embodiment 3

[0046] A gold-containing imitation gold-copper alloy, the alloy is mainly composed of the following raw materials in weight percentage:

[0047] Au: 10%; Zn: 0.4%; toner: 1%, the toner is selected from one of aluminum, indium, nickel, tin; RE: 1%; Si: 1%; the balance is Cu, the sum of weight percentages of all elements is 100%.

[0048] The described gold-containing imitation gold-copper alloy is prepared according to the following method:

[0049] A. Smelting: Weigh each raw material according to the above weight percentage, clean the above raw materials with acid, which can effectively remove the oxide layer on the metal surface, dry it after cleaning with acid, and then load it in batches In the crucible of the vacuum intermediate frequency induction melting furnace, the temperature is controlled at 1300 ° C to melt to clear liquid, then melt and stir for 10 minutes, and then pour it into a Ф70 water-cooled red copper crystallizer to obtain gold-containing imitation gold a...

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Abstract

The invention relates to gold-bearing imitation-gold copper alloy and a preparation method thereof, belongs to the technical field of alloy materials and solves the technical problem that copper alloy in the prior art is poor in discoloration resistance and poor in gold imitation effect. The gold-bearing imitation-gold copper alloy comprises, by weight percent, 0.5%-10% of Au, 0.5%-40% of Zn, not more than 1% of Si, not more than 1% of RE, 0.4%-5.0% of coloring, and the balance of Cu. The invention further provides the preparation method of the alloy. The preparation method includes: smelting the materials at 1200 DEG C to 1300 DEG C, annealing at 500 DEG C to 600 DEG C, and forging and hot-rolling to obtain the gold-bearing imitation-gold copper alloy. The gold-bearing imitation-gold copper alloy has the advantages that discoloration resistance is high, gold imitation is effective, the alloy has the same appearance color as 14K-18K gold, process is simple, processibility is high, and the gold-bearing imitation-gold copper alloy is easy to process.

Description

technical field [0001] The invention relates to an imitation gold-copper alloy, in particular to a gold-containing imitation gold-copper alloy and a preparation method thereof, belonging to the technical field of alloy materials. Background technique [0002] Gold has a beautiful golden yellow color, good chemical stability, and has the function of preserving value. Therefore, it has long been the material of choice for products such as jewelry, art sculptures, religious supplies, and prizes. However, in recent years, with the change of people's consumption concept, more attention is paid to the novelty of styles for jewelry, art sculptures, religious articles, prizes, etc., and the requirements for the value preservation function are weakened. Therefore, cheap and attractive imitation gold alloy products obtain people's general attention. [0003] At present, domestic imitation gold products are mainly imitation gold electroplating products and copper-based imitation gold ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/04C22C9/00C22C30/06C22C1/02C22F1/08
Inventor 张正良
Owner HANGZHOU ZHENDA HARDWARE MACHINERY
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