Silver alloy, silver alloy ornament and preparation method of silver alloy ornament

A silver alloy and jewelry technology, applied in clothing, applications, jewelry, etc., can solve the problems of unnatural transition at the joint and cumbersome production process.

Inactive Publication Date: 2020-07-07
ZHENGZHOU RES INST OF MECHANICAL ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional multi-color ornaments are prepared by inlaying, riveting, welding and other methods, the transition at the joints is unnatural, and the production process is cumbersome

Method used

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  • Silver alloy, silver alloy ornament and preparation method of silver alloy ornament
  • Silver alloy, silver alloy ornament and preparation method of silver alloy ornament
  • Silver alloy, silver alloy ornament and preparation method of silver alloy ornament

Examples

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preparation example Construction

[0062] The preparation method of the silver alloy of the present invention adopts pyrometallurgy.

[0063] According to another aspect of the present invention, the present invention also relates to a silver alloy ornament, which is mainly prepared from the above-mentioned silver alloy.

[0064] The silver alloy ornament of the present invention has the same color and luster as the 18K-22K yellow silver alloy ornament, has good anti-sulphurization and discoloration performance, and excellent anti-sweat corrosion performance.

[0065] Preferably, the silver alloy comprises the following components in parts by weight:

[0066] 25-40 parts of Ag, 40-70 parts of Cu, 15-40 parts of Zn, 0.5-3 parts of Sn, 1-3.6 parts of Al, 0.5-1 part of Si, 0.5-1 part of Ni and 0.05-0.1 part of rare earth elements.

[0067] Preferably, the silver alloy comprises the following components in parts by weight:

[0068] 10-40 parts of Ag, 45-65 parts of Cu, 9-30 parts of Zn, 0.5-1.5 parts of Sn, 0.2-0...

Embodiment 1

[0105] A silver alloy ornament made of an imitation 18K gold ring, the size of which is 15.9mm in diameter, 2mm in thickness, and 5mm in width. The raw material components of silver alloy jewelry include: 35 parts of Ag, 20 parts of Zn, 1.5 parts of Sn, 2.5 parts of Al, 0.5 parts of Si, 1 part of Ni, 0.08 parts of Ce and 39.42 parts of Cu.

[0106] The preparation method of described silver alloy ornament, comprises the following steps:

[0107] (1) Dosing according to the above ingredients, smelting in an atmosphere protection furnace and ensuring complete alloying, preparing yellow silver alloy powder by nitrogen atomization, and sieving the yellow silver alloy powder to -300 mesh.

[0108] (2) The mold volume is 339.12mm 3 , The theoretical powder density is 8.33g / cm 3 , the feeding weight is 2.82g, the coefficient is 1.02, and the actual feeding amount is 2.88g.

[0109] (3) Fill the powder into a steel mold, and compact the powder with a cold press to obtain a cold-pre...

Embodiment 2

[0112] A silver alloy ornament made of imitation 22K gold ring, its size is 15.9mm in diameter, 2mm in thickness, and 5mm in width. The raw material components of silver alloy jewelry include: Ag25, Zn24, Sn0.5, Al1.5, Si0.2, B0.08, Ni0.5, Ce0.02 and Cu48.2.

[0113] The preparation method of described silver alloy ornament, comprises the following steps:

[0114] (1) Dosing according to the above ingredients, smelting in an atmosphere protection furnace and ensuring complete alloying, preparing yellow silver alloy powder by nitrogen atomization, and sieving the yellow silver alloy powder to -300 mesh.

[0115] (2) The mold volume is 339.12mm 3 , powder theoretical density 8.03g / cm 3 , the feeding weight is 2.72g, the coefficient is 1.02, and the actual feeding amount is 2.77g.

[0116] (3) Fill the powder into a steel mold, and compact the powder with a cold press to obtain a cold-pressed green body;

[0117] (4) Put the cold-pressed green body into a tunnel furnace prote...

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Abstract

The invention relates to the field of sliver alloy ornaments, in particular to a silver alloy, a silver alloy ornament and a preparation method of the silver alloy ornament. The silver alloy comprises, by weight, 10-40 parts of Ag, 30-72 parts of Cu, 9-40 parts of Zn, 0.01-3 parts of Sn, 0.2-3.6 parts of Al, 0.02-1 part of Si, 0.1-1 part of Ni, and 0.01-0.1 part of rare earth elements. The sliveralloy ornament prepared from the silver alloy has the same color and luster as 18K-22K yellow silver ornaments and has good anti-sulfurized discoloration performance and excellent sweat corrosion resistance.

Description

technical field [0001] The invention relates to the field of silver alloy ornaments, in particular to a silver alloy, silver alloy ornaments and a preparation method thereof. Background technique [0002] Jewelry is a luxury item that combines precious metals with precious stones to satisfy people's pursuit of beautiful things. Sterling silver or silver alloy jewelry is loved by people of all ages because of its beautiful color, relatively low price, and strong design sense. It has developed rapidly in modern times. Sterling silver and silver alloy jewelry accounted for 37% of jewelry sales, becoming an important category of jewelry products. Pure silver alloy jewelry is stipulated in the international standard that the silver content exceeds 92.5%, while the silver content below 92.5% is called silver alloy jewelry. Silver alloy jewelry can be made into a series of silver alloys of different colors through the adjustment of the alloy composition ratio. The color is bright...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C5/08C22C9/00C22C30/02C22C30/06C22C30/04C22C1/04B22F3/02B22F3/10A44C25/00A44C27/00
CPCA44C25/00A44C27/003B22F3/02B22F3/1007B22F2999/00C22C1/0425C22C1/0466C22C5/08C22C9/00C22C30/02C22C30/04C22C30/06B22F2201/013B22F2201/016B22F2201/04B22F2201/01
Inventor 钟素娟于奇马佳于新泉潘建军纠永涛
Owner ZHENGZHOU RES INST OF MECHANICAL ENG CO LTD
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