Martensite phase-change type silver alloy for jewelry and processing technology thereof

A martensitic transformation and processing technology, applied in the field of alloys, can solve the problems such as the lack of large-scale promotion and industrialization of silver jewelry, achieve excellent flow performance and filling mold performance, reduce hot cracking tendency, low The effect of inspiratory capacity

Inactive Publication Date: 2019-08-09
杭州辰卓科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, although the gold alloy with the Spaniel effect has been successfully developed for gold alloys, that is, the grating effect generated on the surface by using the martensitic phase transformation of gold, there are still very few reports on the Spaniel alloy of the silver-based alloy in the international scope. So little, so that there is no large-scale promotion and industrialization of Sban silver jewelry at home and abroad.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A silver alloy for martensitic phase transformation type jewelry and a processing technology thereof. In terms of weight percentage, the composition of the alloy is: Y: 0.1wt.%, Mo: 0.6wt.%, Co: 4.2wt.%, Ta: 1.0wt.%, In: 12.0wt.%, Pd: 1.0wt. %, Os: 0.1wt.%, Cu: 10.00wt.%, and the balance is silver.

[0018] The above-mentioned silver alloy for jewelry with martensitic phase transformation and its processing technology include the following steps: (a) ingredients: weighing the raw materials according to the above mass percentage; (b) smelting: using argon-protected non Vacuum induction melting furnace for melting, in which the crucible is graphite crucible; heat preservation at 1050 degrees for 10 minutes and use electromagnetic stirring to fully stir the alloy melt, then cast iron molds, and use water cooling for rapid cooling; (c) Subsequent pressure Processing and heat treatment: The obtained ingot is rolled at room temperature, and the amount of reduction in each pa...

Embodiment 2

[0021] A silver alloy for martensitic phase transformation type jewelry and a processing technology thereof. In terms of weight percentage, the composition of the alloy is: Y: 0.3wt.%, Mo: 0.8wt.%, Co: 6.0wt.%, Ta: 1.5wt.%, In: 14.0wt.%, Pd: 1.4wt. %, Os: 0.1wt.%, Cu: 18.0wt.%, and the balance is silver.

[0022]The above-mentioned silver alloy for jewelry with martensitic phase transformation and its processing technology include the following steps: (a) ingredients: weighing the raw materials according to the above mass percentage; (b) smelting: using argon-protected non Vacuum induction melting furnace for melting, in which the crucible is graphite crucible; heat preservation at 1080 degrees for 10 minutes and use electromagnetic stirring to fully stir the alloy melt, then cast iron molds, and use water cooling for rapid cooling; (c) Subsequent pressure Processing and heat treatment: The obtained ingot is rolled at room temperature, and the amount of rolling in each pass i...

Embodiment 3

[0025] A silver alloy for martensitic phase transformation type jewelry and a processing technology thereof. In terms of weight percentage, the composition of the alloy is: Y: 0.2wt.%, Mo: 0.6wt.%, Co: 5.0wt.%, Ta: 1.2wt.%, In: 13.0wt.%, Pd: 1.2wt. %, Os: 0.1wt.%, Cu: 14.0wt.%, and the balance is silver.

[0026] The above-mentioned silver alloy for jewelry with martensitic phase transformation and its processing technology include the following steps: (a) ingredients: weighing the raw materials according to the above mass percentage; (b) smelting: using argon-protected non Vacuum induction melting furnace for melting, in which the crucible is graphite crucible; heat preservation at 1090 degrees for 10 minutes and use electromagnetic stirring to fully stir the alloy melt, then cast iron molds, and use water cooling for rapid cooling; (c) Subsequent pressure Processing and heat treatment: The obtained ingot is rolled at room temperature, and the amount of reduction in each pas...

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Abstract

The invention discloses a martensite phase-change type silver alloy for jewelry and a processing technology thereof. The alloy comprises the following components of, in percentage by weight, 0.1-0.3 wt.% of Y, 0. 5-0.8 wt.% of Mo, 4.0-6.0 wt.% of Co, 1.0-1.5 wt.% of Ta, 10.0-15.0 wt.% of In, 1.0-1.5 wt.% of Pd, 0.1-0.2wt.% of Os, 10.0-20.0 wt.% of Cu, and the balance Ag. Aiming at the requirementsof the existing jewelry industry, the material provides a novel silver alloy with a pearly-like gorgeous appearance, namely the alloy with a speckle effect. The alloy can meet the requirements of theexisting silver alloy for high-end jewelry, and also can obtain great social value and economic value.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a silver alloy. Background technique [0002] Among the alloys used in jewelry, gold alloy is the most important one. The market demand for gold alloys for jewelry has rapidly expanded in the jewelry market in recent years, which also indirectly shows the important position of gold jewelry in the world jewelry industry. This is largely due to the beautiful color of gold, long-term storage will not change color, and good processing performance. Although there are many kinds of gold alloys used in jewelry, and the appearance and color are changeable, the most eye-catching one is the gold alloy for jewelry called Spinning Gold. [0003] Spanking uses the grating diffraction effect produced by the martensite in the gold alloy or the surface relief and fine layered structure similar to the martensitic phase transformation under the action of light, so that the surface of the gold all...

Claims

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Application Information

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IPC IPC(8): C22C5/06C22C5/08A44C27/00C22C1/02B22C9/22B22C9/06C22F1/02C22F1/14
CPCA44C27/003B22C9/06B22C9/22C22C1/02C22C5/06C22C5/08C22F1/002C22F1/02C22F1/14
Inventor 刘亚军
Owner 杭州辰卓科技有限公司
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