CN103740968B - A kind of manufacture craft of anti-tarnishing silver alloy - Google Patents
A kind of manufacture craft of anti-tarnishing silver alloy Download PDFInfo
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- CN103740968B CN103740968B CN201310703485.6A CN201310703485A CN103740968B CN 103740968 B CN103740968 B CN 103740968B CN 201310703485 A CN201310703485 A CN 201310703485A CN 103740968 B CN103740968 B CN 103740968B
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Abstract
The present invention relates to a kind of manufacture craft of anti-tarnishing silver alloy, step comprises: will be by weight proportion: silver: 8.1 ~ 9.5 parts, cobalt: 0.15 ~ 0.65 part, nickel: 0.05 ~ 0.15 part, copper: 0.05 ~ 0.15 part, carbon: 0.01 ~ 0.05 part, aluminium: put high melt in vacuum melting furnace into after 0.01 ~ 0.20 part of raw material mixing, smelting temperature is: 900 ~ 1200 DEG C, and smelting time is: 4 ~ 6h; Then add 0.04 part of magnesium after cooling and continue melting, then add 0.06 part of indium after cooling and continue melting, then add 0.20 part of letter after cooling and continue melting, then final silver alloys is become after cooling, the silver alloys cost that the manufacture craft applying anti-tarnishing silver alloy of the present invention is produced is low, safety non-toxic, mechanical workout and welding property well, expose life-time service nondiscoloration in atmospheric conditions.
Description
Technical field
The invention belongs to technical field of alloy material, particularly relate to a kind of manufacture craft of anti-tarnishing silver alloy.
Background technology
Silver alloy outward appearance is silvery white in color and has beautiful gloss, is mainly used in silver coin, silver-colored souvenir badge, silverware and silver jewellery.But silver alloys and muriate and sulfide react and dark and gloomy variable color, affect attractive in appearance with use.In recent years, all carried out the research work of anti-tarnishing silver alloy aspect in world wide, improved the performance of silver alloys variable color, but produce little effect under the condition of low cost, so far there are no, and fruitful anti-tarnishing silver alloy goods go on the market.
Summary of the invention
In order to solve the above problems, the invention provides a kind of manufacture craft of anti-tarnishing silver alloy,
1) will be by weight proportion: silver: 8.1 ~ 9.5 parts, cobalt: 0.15 ~ 0.65 part, nickel: 0.05 ~ 0.15 part, copper: 0.05 ~ 0.15 part, carbon: 0.01 ~ 0.05 part, aluminium: put high melt in vacuum melting furnace into after 0.01 ~ 0.20 part of raw material mixing, smelting temperature is: 900 ~ 1200 DEG C, and smelting time is: 4 ~ 6h;
2) taken out by the ingot bar after step 1 melting and put into cooler and cool, cooling temperature is :-50 ~-35 DEG C, and cooling time is: 1 ~ 4h;
3) will put in vacuum melting furnace through the cooled ingot bar of step 2, and add simultaneously and be by weight proportion: the magnesium of 0.01 ~ 0.05 part, smelting temperature is: 700 ~ 1000 DEG C, and smelting time is: 5 ~ 7h;
4) taken out by the ingot bar after step 3 melting and put into cooler and cool, cooling temperature is :-30 ~-25 DEG C, and cooling time is: 3 ~ 4h;
5) cooled for step 4 ingot bar is put into vacuum melting furnace, add simultaneously and be by weight proportion: 0.03 ~ 0.10 part of indium, smelting temperature is: 600 ~ 900 DEG C, and smelting time is: 6 ~ 8h;
6) taken out by the ingot bar after step 5 melting and put into cooler and cool, cooling temperature is :-25 ~-20 DEG C, and cooling time is: 4 ~ 6h;
7) cooled for step 6 ingot bar is put into vacuum melting furnace, add simultaneously and be by weight proportion: the zinc of 0.12 ~ 0.35 part, smelting temperature is: 600 ~ 900 DEG C, and smelting time is: 4 ~ 6h;
8) taken out by the ingot bar after step 7 melting and put into cooler and cool, cooling temperature is :-20 ~-15 DEG C, and cooling time is: 6 ~ 8h.
Preferred version is: adding part by weight is in step 2: 0.04 part of magnesium.
Preferred version is: adding part by weight is in steps of 5: 0.06 part of indium.
Preferred version is: adding part by weight is in step 7: 0.20 part of zinc.
The silver alloys cost that the manufacture craft applying anti-tarnishing silver alloy of the present invention is produced is low, safety non-toxic, and mechanical workout and welding property well, expose life-time service nondiscoloration in atmospheric conditions.
Embodiment
Embodiment 1
1) will be by weight proportion: silver: 8.1 parts, cobalt: 0.15 part, nickel: 0.05 part, copper: 0.05 part, carbon: 0.01 part, aluminium: put high melt in vacuum melting furnace into after 0.01 part of raw material mixing, smelting temperature is: 900 DEG C, and smelting time is: 6h;
2) taken out by the ingot bar after step 1 melting and put into cooler and cool, cooling temperature is :-50 DEG C, and cooling time is: 1h;
3) will put in vacuum melting furnace through the cooled ingot bar of step 2, and add simultaneously and be by weight proportion: the magnesium of 0.01 part, smelting temperature is: 700 DEG C, and smelting time is: 5h;
4) taken out by the ingot bar after step 3 melting and put into cooler and cool, cooling temperature is :-30 DEG C, and cooling time is: 3h;
5) cooled for step 4 ingot bar is put into vacuum melting furnace, add simultaneously and be by weight proportion: 0.03 part of indium, smelting temperature is: 600 DEG C, and smelting time is: 6h;
6) taken out by the ingot bar after step 5 melting and put into cooler and cool, cooling temperature is :-25 DEG C, and cooling time is: 4h;
7) cooled for step 6 ingot bar is put into vacuum melting furnace, add simultaneously and be by weight proportion: the zinc of 0.12 part, smelting temperature is: 600 DEG C, and smelting time is: 4h;
8) taken out by the ingot bar after step 7 melting and put into cooler and cool, cooling temperature is :-20 DEG C, and cooling time is: 6h.
The silver alloy prepared is put into concentration be 8% sodium sulphite soak 48 hours, not there is variable color in silver alloys; Anti-oxidant test: 24 hours neutral salt spray tests, not there is variable color in silver alloy; 24 hours acetic acid salt spray tests, not there is metachromasia in silver alloy; 24 hours mantoquitas accelerate acetic acid salt spray test silver alloy oxidation area and account for 15% of the total area; 24 hours alternation salt-fog tests, silver alloy oxidation area accounts for 12% of the total area.
Embodiment 2
1) will be by weight proportion: silver: 9.5 parts, cobalt: 0.65 part, nickel: 0.15 part, copper: 0.15 part, carbon: 0.05 part, aluminium: put high melt in vacuum melting furnace into after 0.20 part of raw material mixing, smelting temperature is: 1200 DEG C, and smelting time is: 6h;
2) taken out by the ingot bar after step 1 melting and put into cooler and cool, cooling temperature is :-35 DEG C, and cooling time is: 4h;
3) will put in vacuum melting furnace through the cooled ingot bar of step 2, and add simultaneously and be by weight proportion: the magnesium of 0.05 part, smelting temperature is: 1000 DEG C, and smelting time is: 7h;
4) taken out by the ingot bar after step 3 melting and put into cooler and cool, cooling temperature is :-25 DEG C, and cooling time is: 4h;
5) cooled for step 4 ingot bar is put into vacuum melting furnace, add simultaneously and be by weight proportion: 0.10 part of indium, smelting temperature is: 900 DEG C, and smelting time is: 8h;
6) taken out by the ingot bar after step 5 melting and put into cooler and cool, cooling temperature is :-20 DEG C, and cooling time is: 6h;
7) cooled for step 6 ingot bar is put into vacuum melting furnace, add simultaneously and be by weight proportion: the zinc of 0.35 part, smelting temperature is: 900 DEG C, and smelting time is: 6h;
8) taken out by the ingot bar after step 7 melting and put into cooler and cool, cooling temperature is :-15 DEG C, and cooling time is: 8h.
The silver alloy prepared is put into concentration be 10% sodium sulphite soak 48 hours, not there is variable color in silver alloys; Anti-oxidant test: 24 hours neutral salt spray tests, not there is variable color in silver alloy; 24 hours acetic acid salt spray tests, not there is metachromasia in silver alloy; 24 hours mantoquitas accelerate acetic acid salt spray test silver alloy oxidation area and account for 11% of the total area; 24 hours alternation salt-fog tests, silver alloy oxidation area accounts for 8% of the total area.
Embodiment 3
1) will be by weight proportion: silver: 8.8 parts, cobalt: 0. part, nickel: 0.08 part, copper: 0.10 part, carbon: 0.03 part, aluminium: put high melt in vacuum melting furnace into after 0.12 part of raw material mixing, smelting temperature is: 1000 DEG C, and smelting time is: 5h;
2) taken out by the ingot bar after step 1 melting and put into cooler and cool, cooling temperature is :-40 DEG C, and cooling time is: 3h;
3) will put in vacuum melting furnace through the cooled ingot bar of step 2, and add simultaneously and be by weight proportion: the magnesium of 0.04 part, smelting temperature is: 800 DEG C, and smelting time is: 6h;
4) taken out by the ingot bar after step 3 melting and put into cooler and cool, cooling temperature is :-28 DEG C, and cooling time is: 3h;
5) cooled for step 4 ingot bar is put into vacuum melting furnace, add simultaneously and be by weight proportion: 0.06 part of indium, smelting temperature is: 700 DEG C, and smelting time is: 7h;
6) taken out by the ingot bar after step 5 melting and put into cooler and cool, cooling temperature is :-22 DEG C, and cooling time is: 5h;
7) cooled for step 6 ingot bar is put into vacuum melting furnace, add simultaneously and be by weight proportion: the zinc of 0.20 part, smelting temperature is: 800 DEG C, and smelting time is: 5h;
8) taken out by the ingot bar after step 7 melting and put into cooler and cool, cooling temperature is :-18 DEG C, and cooling time is: 7h.
The silver alloy prepared is put into concentration be 10% sodium sulphite soak 48 hours, not there is variable color in silver alloys; Anti-oxidant test: 24 hours neutral salt spray tests, not there is variable color in silver alloy; 24 hours acetic acid salt spray tests, not there is metachromasia in silver alloy; 24 hours mantoquitas accelerate acetic acid salt spray test silver alloy oxidation area and account for 9% of the total area; 24 hours alternation salt-fog tests, silver alloy oxidation area accounts for 6% of the total area.
Claims (4)
1. a manufacture craft for anti-tarnishing silver alloy, is characterized in that, step comprises:
1) will be by weight proportion: silver: 8.1 ~ 9.5 parts, cobalt: 0.15 ~ 0.65 part, nickel: 0.05 ~ 0.15 part, copper: 0.05 ~ 0.15 part, carbon: 0.01 ~ 0.05 part, aluminium: put high melt in vacuum melting furnace into after 0.01 ~ 0.20 part of raw material mixing, smelting temperature is: 900 ~ 1200 DEG C, and smelting time is: 4 ~ 6h;
2) taken out by the ingot bar after step 1 melting and put into cooler and cool, cooling temperature is :-50 ~-35 DEG C, and cooling time is: 1 ~ 4h;
3) will put in vacuum melting furnace through the cooled ingot bar of step 2, and add simultaneously and be by weight proportion: the magnesium of 0.01 ~ 0.05 part, smelting temperature is: 700 ~ 1000 DEG C, and smelting time is: 5 ~ 7h;
4) taken out by the ingot bar after step 3 melting and put into cooler and cool, cooling temperature is :-30 ~-25 DEG C, and cooling time is: 3 ~ 4h;
5) cooled for step 4 ingot bar is put into vacuum melting furnace, add simultaneously and be by weight proportion: 0.03 ~ 0.10 part of indium, smelting temperature is: 600 ~ 900 DEG C, and smelting time is: 6 ~ 8h;
6) taken out by the ingot bar after step 5 melting and put into cooler and cool, cooling temperature is :-25 ~-20 DEG C, and cooling time is: 4 ~ 6h;
7) cooled for step 6 ingot bar is put into vacuum melting furnace, add simultaneously and be by weight proportion: the zinc of 0.12 ~ 0.35 part, smelting temperature is: 600 ~ 900 DEG C, and smelting time is: 4 ~ 6h;
8) taken out by the ingot bar after step 7 melting and put into cooler and cool, cooling temperature is :-20 ~-15 DEG C, and cooling time is: 6 ~ 8h.
2. the manufacture craft of anti-tarnishing silver alloy according to claim 1, is characterized in that, adds part by weight to be in step 3: 0.04 part of magnesium.
3. the manufacture craft of anti-tarnishing silver alloy according to claim 1, is characterized in that, adds part by weight to be in steps of 5: 0.06 part of indium.
4. the manufacture craft of anti-tarnishing silver alloy according to claim 1, is characterized in that, adds part by weight to be in step 7: 0.20 part of zinc.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310703485.6A CN103740968B (en) | 2013-12-19 | 2013-12-19 | A kind of manufacture craft of anti-tarnishing silver alloy |
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| CN201310703485.6A CN103740968B (en) | 2013-12-19 | 2013-12-19 | A kind of manufacture craft of anti-tarnishing silver alloy |
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| CN103740968A CN103740968A (en) | 2014-04-23 |
| CN103740968B true CN103740968B (en) | 2015-08-26 |
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| CN105441709B (en) * | 2016-01-20 | 2017-07-18 | 广东弘基时尚生态健康集团股份有限公司 | A kind of technique for preparing anti-tarnishing silver alloy |
| CN110669957A (en) * | 2019-10-23 | 2020-01-10 | 依波精品（深圳）有限公司 | High-hardness anti-tarnishing silver alloy and preparation method thereof |
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| JPS60110867A (en) * | 1983-11-18 | 1985-06-17 | Mitsubishi Metal Corp | Surface hardened ag alloy member having excellent resistance to wear and corrosion |
| CN1162559C (en) * | 2002-03-11 | 2004-08-18 | 华中科技大学 | Anti-decolouring silver alloy and its preparing process |
| HK1060485A2 (en) * | 2004-01-20 | 2004-07-09 | Hong Kong Productivity Council | An anti-tarnishing and hardened silver alloy |
| EP1889930A4 (en) * | 2005-06-10 | 2011-09-07 | Tanaka Precious Metal Ind | Silver alloy having excellent reflectivity/transmissivity maintaining characteristics |
| CN102232121B (en) * | 2010-09-08 | 2013-03-20 | 深圳市大凡珠宝首饰有限公司 | Anti-tarnish silver alloy and method for manufacturing the same |
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