A kind of silver alloy with high hardness and anti-aging softening and preparation method thereof

Abstract

The invention provides a silver alloy with high hardness and aging softening resistance. The silver alloy has the beneficial effects as follows: the silver ingredient of which the weight component is 92.5-95.0, particularly preferably 92.5 is adopted, so that on the one hand, the silver is large in ratio, so as to take up value advantage, and on the other hand, the other ingredients are added on the basis of the silver with the ratio. Therefore, the problem of poor aging softening resistance of the silver alloy prepared by the silver alloy production technology in modern society is solved when the mechanical property of the alloy is obviously improved, and the oxidation resistance of the silver alloy is improved by other alloy ingredients. Therefore, the silver alloy has a great development prospect.

Description

technical field

[0001] The invention relates to the field of chemical materials, in particular to a silver alloy with high hardness and anti-aging softening and a preparation method thereof. Background technique

[0002] my country is a country that advocates the culture of gold and silver jewelry. With the opening of the gold and silver market in the mainland of my country, the reduction of import taxes on various jewelry, the continuous growth of the national economy, and the continuous improvement of the consumption power of the people, my country has become the third largest gold and silver market. It is a major jewelry consumer country, second only to India and the United States, among which K gold and anti-tarnish 925 silver alloy jewelry are the fastest growing market demand. According to the forecast of the world's authoritative experts, with the continuous deepening of exchanges and cooperation in terms of concepts, technologies, craftsmanship, and talents in the gol...

Examples

Embodiment 1

[0024] A silver alloy with high hardness and anti-aging softening, comprising the following components in parts by weight: 92.5 parts of silver, 3.4 parts of cupronickel, 1.0 part of titanium, 0.6 part of cerium, 0.9 part of europium, 0.5 part of tantalum, and 1.1 part of thorium, 1.4 parts zinc, 0.5 parts boron, 0.6 parts aluminum, and 0.4 parts gallium.

[0025] Its preparation method comprises the following steps:

[0026] 1) Put 92.5 parts by weight of silver, 3.4 parts of white copper, 0.6 parts of cerium, 0.9 parts of europium, 1.4 parts of zinc, 0.5 parts of boron, 0.6 parts of aluminum, and 0.4 parts of gallium into a vacuum intermediate frequency induction furnace ;

[0027] 2) After the vacuum intermediate frequency induction furnace is evacuated, it is filled with argon, and under the protection of the argon, it is electrified and smelted. The pressure of the argon is 0.04MPa, and the melting temperature is 750-1050°C;

[0028] 3) Before the silver alloy ingot is ...

Embodiment 2

[0035] A silver alloy with high hardness and anti-aging softening, comprising the following components by weight: 95.0 parts of silver, 2.6 parts of cupronickel, 0.6 parts of titanium, 0.3 parts of cerium, 0.8 parts of europium, 0.2 parts of tantalum, 0.7 parts of thorium, zinc 1.2 parts, boron 0.3 parts, aluminum 0.2 parts, and gallium 0.2 parts.

[0036] Its preparation method comprises the following steps:

[0037] 1) Put 95.0 parts by weight of silver, 2.6 parts of white copper, 0.3 parts of cerium, 0.8 parts of europium, 1.2 parts of zinc, 0.3 parts of boron, 0.2 parts of aluminum, and 0.2 parts of gallium into the vacuum intermediate frequency induction furnace;

[0038] 2) After the vacuum intermediate frequency induction furnace is evacuated, it is filled with argon, and under the protection of the argon, it is electrified and smelted. The pressure of the argon is 0.02-0.04MPa, and the melting temperature is 750-1050°C;

[0039] 3) Before the silver alloy ingot is ca...

Embodiment 3

[0046] A silver alloy with high hardness and anti-aging softening, comprising the following components by weight: 92.5 parts of silver, 3.2 parts of cupronickel, 0.9 part of titanium, 0.4 part of cerium, 0.8 part of europium, 0.4 part of tantalum, 0.9 part of thorium, zinc 1.3 parts, boron 0.3 parts, aluminum 0.4 parts, gallium 0.3 parts.

[0047] Its preparation method comprises the following steps:

[0048] 1) Put 92.5 parts by weight of silver, 3.2 parts of white copper, 0.4 parts of cerium, 0.8 parts of europium, 1.3 parts of zinc, 0.3 parts of boron, 0.4 parts of aluminum, and 0.3 parts of gallium into the vacuum intermediate frequency induction furnace;

[0049] 2) After the vacuum intermediate frequency induction furnace is evacuated, it is filled with argon, and under the protection of the argon, it is electrified and smelted. The pressure of the argon is 0.02-0.04MPa, and the melting temperature is 750-1050°C;

[0050] 3) Before the silver alloy ingot is cast, 0.9 p...

technical field

[0001] The invention relates to the field of chemical materials, in particular to a silver alloy with high hardness and anti-aging softening and a preparation method thereof. Background technique

[0002] my country is a country that advocates the culture of gold and silver jewelry. With the opening of the gold and silver market in the mainland of my country, the reduction of import taxes on various jewelry, the continuous growth of the national economy, and the continuous improvement of the consumption power of the people, my country has become the third largest gold and silver market. It is a major jewelry consumer country, second only to India and the United States, among which K gold and anti-tarnish 925 silver alloy jewelry are the fastest growing market demand. According to the forecast of the world's authoritative experts, with the continuous deepening of exchanges and cooperation in terms of concepts, technologies, craftsmanship, and talents in the gol...

Examples

Embodiment 1

[0024] A silver alloy with high hardness and anti-aging softening, comprising the following components in parts by weight: 92.5 parts of silver, 3.4 parts of cupronickel, 1.0 part of titanium, 0.6 part of cerium, 0.9 part of europium, 0.5 part of tantalum, and 1.1 part of thorium, 1.4 parts zinc, 0.5 parts boron, 0.6 parts aluminum, and 0.4 parts gallium.

[0025] Its preparation method comprises the following steps:

[0026] 1) Put 92.5 parts by weight of silver, 3.4 parts of white copper, 0.6 parts of cerium, 0.9 parts of europium, 1.4 parts of zinc, 0.5 parts of boron, 0.6 parts of aluminum, and 0.4 parts of gallium into a vacuum intermediate frequency induction furnace ;

[0027] 2) After the vacuum intermediate frequency induction furnace is evacuated, it is filled with argon, and under the protection of the argon, it is electrified and smelted. The pressure of the argon is 0.04MPa, and the melting temperature is 750-1050°C;

[0028] 3) Before the silver alloy ingot is ...

Embodiment 2

[0035] A silver alloy with high hardness and anti-aging softening, comprising the following components by weight: 95.0 parts of silver, 2.6 parts of cupronickel, 0.6 parts of titanium, 0.3 parts of cerium, 0.8 parts of europium, 0.2 parts of tantalum, 0.7 parts of thorium, zinc 1.2 parts, boron 0.3 parts, aluminum 0.2 parts, and gallium 0.2 parts.

[0036] Its preparation method comprises the following steps:

[0037] 1) Put 95.0 parts by weight of silver, 2.6 parts of white copper, 0.3 parts of cerium, 0.8 parts of europium, 1.2 parts of zinc, 0.3 parts of boron, 0.2 parts of aluminum, and 0.2 parts of gallium into the vacuum intermediate frequency induction furnace;

[0038] 2) After the vacuum intermediate frequency induction furnace is evacuated, it is filled with argon, and under the protection of the argon, it is electrified and smelted. The pressure of the argon is 0.02-0.04MPa, and the melting temperature is 750-1050°C;

[0039] 3) Before the silver alloy ingot is ca...

Embodiment 3

[0046] A silver alloy with high hardness and anti-aging softening, comprising the following components by weight: 92.5 parts of silver, 3.2 parts of cupronickel, 0.9 part of titanium, 0.4 part of cerium, 0.8 part of europium, 0.4 part of tantalum, 0.9 part of thorium, zinc 1.3 parts, boron 0.3 parts, aluminum 0.4 parts, gallium 0.3 parts.

[0047] Its preparation method comprises the following steps:

[0048] 1) Put 92.5 parts by weight of silver, 3.2 parts of white copper, 0.4 parts of cerium, 0.8 parts of europium, 1.3 parts of zinc, 0.3 parts of boron, 0.4 parts of aluminum, and 0.3 parts of gallium into the vacuum intermediate frequency induction furnace;

[0049] 2) After the vacuum intermediate frequency induction furnace is evacuated, it is filled with argon, and under the protection of the argon, it is electrified and smelted. The pressure of the argon is 0.02-0.04MPa, and the melting temperature is 750-1050°C;

[0050] 3) Before the silver alloy ingot is cast, 0.9 p...