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Lightweight yellow low-silver alloy with excellent die casting performance and process thereof

A lightweight, silver alloy technology, applied in the field of alloys, can solve the problems of lack of corrosion resistance, acceleration, vulcanization and blackening, etc., and achieve the effects of excellent low-density characteristics, reduced density, and reduced weight

Inactive Publication Date: 2018-12-07
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of alloy does not have sufficient corrosion resistance to discolor after use, or the vulcanization and blackening are accelerated due to wear and tear out of the base alloy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018]A lightweight yellow low-silver alloy with excellent die-casting performance and its process. In terms of weight percentage, the composition of the alloy is Sr: 0.5wt.%, Al: 15.0wt.%, Mg: 10.0wt.%, Be: 0.5wt.%, Mo: 4.0wt.%, Zn: 20.0wt.% , Ag: 29.0wt.%, the balance is copper. The above-mentioned light-weight yellow low-silver alloy with excellent die-casting performance and its process includes the following steps: adding the above-mentioned raw materials into an induction furnace under an argon environment, and using a graphite crucible; Minutes, stir evenly by high-frequency induction furnace electromagnetically; after stirring evenly, keep warm at 1200 degrees for 1 minute and cast out of the furnace; alloy casting uses a steel mold with a diameter of 20-30mm, and uses water cooling to cool down. The obtained ingot is rolled at room temperature, and the amount of reduction in each pass is 20-30%; after every two rollings, the intermediate annealing temperature is 420 ...

Embodiment 2

[0021] A lightweight yellow low-silver alloy with excellent die-casting performance and its process. In terms of weight percentage, the composition of the alloy is Sr: 0.8wt.%, Al: 18.0wt.%, Mg: 12.0wt.%, Be: 0.8wt.%, Mo: 5.0wt.%, Zn: 24.0wt.% , Ag: 31.0wt.%, the balance is copper. The above-mentioned light-weight yellow low-silver alloy with excellent die-casting performance and its process includes the following steps: adding the above-mentioned raw materials into an induction furnace under an argon environment, and using a graphite crucible; Minutes, stir evenly by high-frequency induction furnace electromagnetically; after stirring evenly, keep warm at 1200 degrees for 1 minute and cast out of the furnace; alloy casting uses a steel mold with a diameter of 20-30mm, and uses water cooling to cool down. The obtained ingot is rolled at room temperature, and the amount of reduction in each pass is 20-30%; after every two rollings, the intermediate annealing temperature is 420...

Embodiment 3

[0024] A lightweight yellow low-silver alloy with excellent die-casting performance and its process. In terms of weight percentage, the composition of the alloy is Sr: 0.6wt.%, Al: 17.0wt.%, Mg: 11.0wt.%, Be: 0.6wt.%, Mo: 4.2wt.%, Zn: 21.0wt.% , Ag: 29.0wt.%, the balance is copper. The above-mentioned light-weight yellow low-silver alloy with excellent die-casting performance and its process includes the following steps: adding the above-mentioned raw materials into an induction furnace under an argon environment, and using a graphite crucible; Minutes, stir evenly by high-frequency induction furnace electromagnetically; after stirring evenly, keep warm at 1200 degrees for 1 minute and cast out of the furnace; alloy casting uses a steel mold with a diameter of 20-30mm, and uses water cooling to cool down. The obtained ingot is rolled at room temperature, and the amount of reduction in each pass is 20-30%; after every two rollings, the intermediate annealing temperature is 420...

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Abstract

The invention discloses a lightweight yellow low-silver alloy with excellent die casting performance and a process thereof. The alloy comprises, by weight, 0.5-0.8% of Sr, 15.0-18.0% of Al, 10.0-12.0% of Mg, 0.5-0.8% of Be, 4.0-5.0% of Mo, 20.0-24.0% of Zn, 29.0-31.0% of Ag and the balance copper. A lightweight selection scheme is provided for our Tibetan silver alloy through the alloy, and the obtained product has excellent yellow look and is extremely resistant to hydrogen sulfide corrosion. Through implementation and industrialization of the alloy, the demands for product upgrading and industrial upgrading in China's jewelry industry can be effectively promoted.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a silver alloy. Background technique [0002] Silver is a precious metal with a silver-white metal. Because silver itself is very soft, alloying elements are added to form a silver alloy with excellent mechanical properties. There are three main grades of traditional decorative silver: sterling silver, 958 silver and 925 silver, of which 958 silver and 925 silver are binary alloys composed of copper as an alloying element. The 958 silver alloy has a high silver content, with a silver content of 95.8 wt%, while the 925 silver content is 92.5 wt%. With the development of material science, the formulations of silver alloys are also constantly updated, and many types of 958 and 925 silver have appeared. Because of the differences in the types, contents, and processing methods of metal elements added, the chemical properties and mechanical properties of various silver alloys are diffe...

Claims

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Application Information

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IPC IPC(8): C22C30/06C22C1/02C22F1/14C22F1/02C25D11/34
CPCC22C30/06C22C1/02C22C5/06C22C5/08C22C30/02C22F1/02C22F1/14C25D11/026C25D11/34
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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