CN105132760A - Non-rusting silver alloy and preparation method thereof - Google Patents
Non-rusting silver alloy and preparation method thereof Download PDFInfo
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- CN105132760A CN105132760A CN201510654106.8A CN201510654106A CN105132760A CN 105132760 A CN105132760 A CN 105132760A CN 201510654106 A CN201510654106 A CN 201510654106A CN 105132760 A CN105132760 A CN 105132760A
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Abstract
The invention provides non-rusting silver alloy. The non-rusting silver alloy comprises, by weight, 90.0-92.5% of silver, 0.5-5% of copper, 0.5-2.0% of zinc, 0.2-1.1% of tin, 1.0-3.0% of indium and 0.1-6% of germanium. The invention further provides a preparation method for the non-rusting silver alloy and the application of the non-rusting silver alloy. According to the non-rusting silver alloy and the preparation method thereof, the compositions are simple and do not contain precious metal and rare metal; the non-rusting silver alloy is suitable for making contact with human body skin; good machinable property is achieved; the non-rusting property of the non-rusting silver alloy is over twice that of Sterling silver, so that the non-rusting silver alloy is suitable for being applied to the industries of jewelries, decorations and the like.
Description
Technical field
The invention belongs to technical field of metal, relate to a kind of anti-tarnishing silver alloy and preparation method thereof, be specifically related to a kind of sulfuration resistant, anti-tarnishing silver alloy and preparation method thereof that are applicable to jewelry, ornament etc.
Background technology
Silver, as a kind of precious metal, has white gloss and not oxidizable, its stable chemical nature, heat conduction, conducts electricity very well, and is not subject to pharmaceutical chemicals corrosion, the soft easy processing of matter, thus makes silver and silver alloys be widely used in jewellery, artwork, tableware etc.Meanwhile, silver with often do compared with the gold of decoration material, platinum, price differs greatly, so price factor is also that silverware and Silver Jewelry are more by the one of the main reasons that ordinary people is welcome.
Even if fine silver heats also not oxidizable in atmosphere, but Yin Yi and reaction of Salmon-Saxl form silver sulfide and blackening.And after the surface corrosion variable color of silver, have a strong impact on the decorative appearance performance of silver jewellery artwork, silverware, therefore preventing and slowing down the variable color of silver-colored top layer is the problem that domestic and international silverware industry is concerned about the most.People have carried out the discoloration-resisting that various trial improves silver and silver alloys.For a long time, people tend to plate layer protecting film at silver surface and protect, but protective membrane variable color once damage silver will soon be corroded.Therefore, the discoloration-resisting by carrying out alloying to improve silver to silver is only the method for the treatment of both principal and secondary aspect of disease.Generally speaking, the alloying of carrying out silver by adding precious metal, base metal and thulium can significantly improve the anti-tarnishing ability of silver alloys.
In recent years, people successively have developed multiple anti-tarnishing silver alloy.Some experiments show, the gold or the platinum that add more than 20% in silver can very effective prevention sulfide stainings.But this scheme can increase cost greatly, be unfavorable for actual popularization.In addition, also having some to improve the discoloration-resisting of silver alloys by adding base alloying mode, such as adding metal molybdenum, but due to the fusing point of molybdenum too high, temperature of fusion superelevation 2500 degree, traditional technique cannot adapt to.And these silver alloys mostly poor processability, does not mate with traditional processing mode of jewellery industry.In addition, these silver alloys welding propertys, the aspects such as resistance to sulfuration, chlorination, oxidation corrosion come with some shortcomings.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of anti-tarnishing silver alloy and preparation method thereof, for solving in prior art the problem lacking composition is simple, good processability, discoloration-resisting are good, with low cost anti-tarnishing silver alloy and preparation method thereof.
For achieving the above object and other relevant objects, the invention provides a kind of anti-tarnishing silver alloy, by weight percentage, comprise following elementary composition: silver (Ag) 90.0 ~ 92.5%, copper (Cu) 0.5 ~ 5%, zinc (Zn) 0.5 ~ 2.0%, tin (Sn) 0.2 ~ 1.1%, indium (In) 1.0 ~ 3.0%, germanium (Ge) 0.1 ~ 6%.
Preferably, described a kind of anti-tarnishing silver alloy, by weight percentage, comprises following elementary composition: silver 92.0 ~ 92.5%, copper 3.0 ~ 5.0%, zinc 0.5 ~ 1.9%, tin 0.2 ~ 0.5%, indium 1.0 ~ 2.5%, germanium 0.1 ~ 1.0%.
More preferably, described a kind of anti-tarnishing silver alloy, by weight percentage, comprises following elementary composition: silver 92.5%, copper 4.2%, zinc 0.8%, tin 0.2%, indium 2.0%, germanium 0.3%.
Anti-tarnishing silver alloy in the present invention elementary composition, wherein, adding of Cu can put forward heavy alloyed intensity and hardness significantly; Zn, for reducing alloy melting point, brightens, deoxidation, increases alloy flowability; Sn can increase hardness, plasticity-, ductility and weldability; In is used as grain-refining agent, carries heavy alloyed wet performance; Ge is for increasing alloy rigidity, and Ge is easily oxidized, forms transparent layer oxide film, has very strong anti-tarnishing ability.
Present invention also offers a kind of preparation method of anti-tarnishing silver alloy, specifically comprise the following steps:
1) each elementary composition in alloy material is added rear mixing by proportioning, adopt vacuum induction melting method to carry out melting;
Described vacuum induction melting method refers to a kind of smithcraft processing procedure utilizing electromagnetic inductive heating principle to carry out smelting metal under high-frequency vacuum condition.It can produce eddy current in electromagnetic induction process, makes melting of metal.
Preferably, described melting is carried out in vacuum heat treatment furnace.
Preferably, need to vacuumize before described melting.
More preferably, described in when vacuumizing, vacuum tightness is more than or equal to 10
-2pa.
Preferably, described smelting temperature is 950 ~ 1050 DEG C.
In order to ensure homogeneity when described melting is use arc melting, needs many meltings several times, be generally more than 3 times; If use induction melting, then there is no need repeatedly melting, once just can ensure homogeneity.Described smelting time and the relating to parameters such as melting equipment, power, all melt as long as can realize alloy, do not explicitly call for.
2) after alloy all melts, be filled with protective atmosphere, pour into alloy cast ingot;
Preferably, described protective atmosphere is high-purity argon gas.
Preferably, described cast adopts copper mould casting.
Described alloy cast ingot is the sample foundry goods or sheet material that design in advance.
3) by step 2) in the alloy cast ingot that obtains carry out homogenizing thermal treatment, then carry out cold rollingly making alloy slice material;
Described alloy cast ingot needs to carry out homogenizing thermal treatment, and object makes the silver alloys composition of acquisition more even, avoids stress concentration.
Preferably, the heat treated temperature of described homogenizing is 650 ~ 750 DEG C.More preferably, the heat treated temperature of described homogenizing is 720 DEG C.
Preferably, the described homogenizing heat treated time is 4 ~ 8 hours.More preferably, the described homogenizing heat treated time is 8 hours.
Preferably, described cold rolling temperature is room temperature.
Preferably, described cold rolling in every time cold rolling dependent variable control within 30%.
4) by step 3) in obtain alloy sheet material carry out annealing thermal treatment again, obtain anti-decolouring silver alloy.
Preferably, the heat treated temperature of described annealing is 550 ~ 750 DEG C.More preferably, the heat treated temperature of described annealing is 650 DEG C.
Preferably, the described annealing heat treated time is 0.5 ~ 1 hour.More preferably, the described annealing heat treated time is 0.5 hour.
The present invention still further provides the purposes of a kind of anti-tarnishing silver alloy on bullion, ornament.
Described ornament comprises the silverware such as artwork, tableware and Silver Jewelry.
As mentioned above, a kind of anti-tarnishing silver alloy provided by the invention and preparation method thereof, has following beneficial effect:
(1) component of anti-tarnishing silver alloy for preparing of the present invention is few, composition simple, and not containing precious metal and rare metal composition, low cost of manufacture.
(2) anti-tarnishing silver alloy that the present invention prepares does not contain harmful alloying element, is applicable to contact human skin.
(3) hardness of anti-tarnishing silver alloy for preparing of the present invention is close with Sterling silver alloy, has good processability, is adapted at the application of the industry such as bullion, ornament.
(4) anti-tarnishing silver alloy for preparing of the present invention is in identical corrosive environment, and as in atmospheric condition or simulation human sweat environment, its anti-tarnishing ability is more than the twice of Sterling silver alloy.
(5) jewellery adopting anti-tarnishing silver alloy of the present invention to produce, the waste material in the course of processing directly can carry out melting, reprocessing, avoids the purifying technique of alloy, reduces production cost.
Accompanying drawing explanation
Fig. 1 is shown as microphotograph 1a, the 1b of sample variable color experimental result in the embodiment of the present invention 1, and wherein, 1a is the microphotograph of anti-tarnishing silver alloy sample 1#; 1b is the microphotograph of Sterling silver alloy alloy sample 1*.
Fig. 2 is shown as microphotograph 2a, the 2b of sample variable color experimental result in the embodiment of the present invention 2, and wherein, 2a is the microphotograph of anti-tarnishing silver alloy sample 2#; 2b is the microphotograph of Sterling silver alloy alloy sample 2*.
Fig. 3 is shown as microphotograph 3a, the 3b of sample variable color experimental result in the embodiment of the present invention 3, and wherein, 3a is the microphotograph of anti-tarnishing silver alloy sample 3#; 3b is the microphotograph of Sterling silver alloy alloy sample 3*.
Embodiment
Set forth the present invention further below in conjunction with specific embodiment, should be understood that these embodiments are only not used in for illustration of the present invention and limit the scope of the invention.
Below by way of specific specific examples, embodiments of the present invention are described, those skilled in the art the content disclosed by this specification sheets can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by embodiments different in addition, and the every details in this specification sheets also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.
Reagent and the device of following examples use are as follows:
1, reagent
Silver, copper, zinc, tin, indium, germanium (purity>=99.9%, purchased from Beijing Chinese incense cedar woods non-ferrous metal company limited); Sterling silver alloy alloy (silver content 92.5%, copper content 7.5%, purchased from Laofengxiang Co., Ltd., Shanghai); Na
2s (analytical pure, net purchase is from Aladdin); Water (water purification machine self-control)
2, device
ZK1400 type vacuum heat treatment furnace (Hefei Ke Jing company)
Embodiment 1
The formula of anti-decolouring silver alloy is as follows: silver 92.5%, copper 0.5%, zinc 0.5%, tin 0.5%, indium 1.5%, germanium 4.5%.
Each elementary composition to be weighed mixing by said ratio, adopt vacuum induction melting method to carry out high-frequency vacuum melting, vacuum tightness is more than or equal to 10
-2pa, smelting temperature is 950 ~ 1050 DEG C.After alloy all melts, be filled with high-purity argon gas as protective atmosphere, pour into silver alloys ingot casting.Then by silver alloys ingot casting 720 DEG C of homogenizing thermal treatments 8 hours, then after cold rolling at room temperature, make silver alloys sheet material.Again silver alloys sheet material after 0.5 hour, is prepared anti-tarnishing silver alloy sample 1# 650 DEG C of annealing thermal treatments.
Anti-tarnishing silver alloy sample 1# prepared by the present embodiment is placed in 0.1mol/lNa
2in S aqueous medium, immersion corrosion carries out variable color experiment in 1 hour, and the Photomicrograph of test-results as shown in Figure 1a.Meanwhile, with Sterling silver alloy alloy sample 1* in contrast, 0.1mol/lNa is placed in equally
2in S aqueous medium, immersion corrosion carries out variable color experiment in 1 hour, and the Photomicrograph of test-results as shown in Figure 1 b.As can be seen from Fig. 1 a and 1b, in the present embodiment, the anti-tarnishing ability of silver alloys sample 1# is obviously better than Sterling silver alloy alloy sample 1*.Described Sterling silver alloy alloy refers to containing 92.5% silver medal, the yellow gold of 7.5% bronze medal.
Embodiment 2
The formula of anti-decolouring silver alloy is as follows: silver 92.5%, copper 3.4%, zinc 1.5%, tin 0.4%, indium 2.0%, germanium 0.2%.
Each elementary composition to be weighed mixing by said ratio, adopt vacuum induction melting method to carry out high-frequency vacuum melting, vacuum tightness is more than or equal to 10
-2pa, smelting temperature is 950 ~ 1050 DEG C.After alloy all melts, be filled with high-purity argon gas as protective atmosphere, pour into silver alloys ingot casting.Then by silver alloys ingot casting 720 DEG C of homogenizing thermal treatments 8 hours, then after cold rolling at room temperature, make silver alloys sheet material.Again silver alloys sheet material after 0.5 hour, is prepared anti-tarnishing silver alloy sample 2# 650 DEG C of annealing thermal treatments.
Anti-tarnishing silver alloy sample 2# prepared by the present embodiment is placed in 0.1mol/lNa
2in S aqueous medium, immersion corrosion carries out variable color experiment in 1.5 hours, and the Photomicrograph of test-results as shown in Figure 2 a.Meanwhile, with Sterling silver alloy alloy sample 2* in contrast, 0.1mol/lNa is placed in equally
2in S aqueous medium, immersion corrosion carries out variable color experiment in 1.5 hours, and the Photomicrograph of test-results as shown in Figure 2 b.As can be seen from Fig. 2 a and 2b, in the present embodiment, the anti-tarnishing ability of silver alloys sample 3# is obviously better than Sterling silver alloy alloy sample 2*.
Embodiment 3
The formula of anti-decolouring silver alloy is as follows: silver 92.5%, copper 4.2%, zinc 0.8%, tin 0.2%, indium 2.0%, germanium 0.3%.
Each elementary composition to be weighed mixing by said ratio, adopt vacuum induction melting method to carry out high-frequency vacuum melting, vacuum tightness is more than or equal to 10
-2pa, smelting temperature is 950 ~ 1050 DEG C.After alloy all melts, be filled with high-purity argon gas as protective atmosphere, pour into silver alloys ingot casting.Then by silver alloys ingot casting 720 DEG C of homogenizing thermal treatments 8 hours, then after cold rolling at room temperature, make silver alloys sheet material.Again silver alloys sheet material after 0.5 hour, is prepared anti-tarnishing silver alloy sample 3# 650 DEG C of annealing thermal treatments.
Anti-tarnishing silver alloy sample 3# prepared by the present embodiment is placed in 0.1mol/lNa
2in S aqueous medium, immersion corrosion carries out variable color experiment in 3 hours, and the Photomicrograph of test-results as shown in Figure 3 a.Meanwhile, with Sterling silver alloy alloy sample 3* in contrast, 0.1mol/lNa is placed in equally
2in S aqueous medium, immersion corrosion carries out variable color experiment in 3 hours, and the Photomicrograph of test-results as shown in Figure 3 b.As can be seen from Fig. 3 a and 3b, in the present embodiment, the anti-tarnishing ability of silver alloys sample 3# is obviously better than Sterling silver alloy alloy sample 3*.
Table 1 embodiment 1-3 elementary composition formula table (weight percent)
| Element term | Embodiment 1 (%) | Embodiment 2 (%) | Embodiment 3 (%) |
| Silver (Ag) | 92.5 | 92.5 | 92.5 |
| Copper (Cu) | 0.5 | 3.4 | 4.2 |
| Zinc (Zn) | 0.5 | 1.5 | 0.8 |
| Tin (Sn) | 0.5 | 0.4 | 0.2 |
| Indium (In) | 1.5 | 2.0 | 2.0 |
| Germanium (Ge) | 4.5 | 0.2 | 0.3 |
Embodiment 4
By the anti-tarnishing silver alloy sample 1-3# prepared in embodiment 1-3, carry out hardness performance test with Sterling silver alloy alloy sample 1-3*, its result is as following table 2.
From data in table 2, in the present invention, anti-tarnishing silver alloy sample is compared with Sterling silver alloy alloy control sample, and its hardness is better, and annealed state hardness is between HV65-71, and processing state can reach HV120-132, and be better than Sterling silver alloy, its processability is good.
Table 2 hardness performance table with test results
| Project | Annealed state hardness (HV) | Processing state hardness (HV) |
| Anti-tarnishing silver alloy sample 1# | 69 | 124 |
| Anti-tarnishing silver alloy sample 2# | 65 | 120 |
| Anti-tarnishing silver alloy sample 3# | 71 | 132 |
| Sterling silver alloy alloy sample 1-3* | 55 | 110 |
Meanwhile, sample is added 0.1mol/lNa
2s aqueous medium carries out corrosive chameleon experimental result, carry out corrosive chameleon experimental result with Sterling silver alloy alloy control sample to compare, the immersion corrosion time of concrete sample sees the following form 3, and the Photomicrograph after sample immersion corrosion is as shown in Fig. 1 a, 1b, 2a, 2b, 3a, 3b.
Table 3 discoloration-resisting test result
| Project | The immersion corrosion time (hour) | Picture |
| Anti-tarnishing silver alloy sample 1# | 1 hour | 1a |
| Anti-tarnishing silver alloy sample 2# | 1.5 hour | 2a |
| Anti-tarnishing silver alloy sample 3# | 3 hours | 3a |
| Sterling silver alloy alloy sample 1* | 1 hour | 1b |
| Sterling silver alloy alloy sample 2* | 1.5 hour | 2b |
| Sterling silver alloy alloy sample 3* | 3 hours | 3b |
As shown in Table 3,0.1mol/lNa is added for sample
2when S aqueous medium carries out corrosive chameleon experiment, compare with the etching time of Sterling silver alloy alloy control sample.Wherein, in the present invention, anti-tarnishing silver alloy sample 3# as shown in Figure 3 a, through the immersion corrosion time of 3 hours.And Sterling silver alloy alloy sample 1* as shown in Figure 1 b, through the immersion corrosion time of 1 hour; Sterling silver alloy alloy sample 2* as shown in Figure 2 b, through the immersion corrosion time of 1.5 hours.From chart, when anti-tarnishing silver alloy sample in the present invention is after the immersion corrosion time through exceeding more than Sterling silver alloy alloy sample twice, the brightness of its alloy is still better than Sterling silver alloy alloy, illustrate that the anti-tarnishing ability of anti-tarnishing silver alloy prepared by the present invention is at least more than the twice of the anti-tarnishing ability of Sterling silver alloy alloy, there is excellent discoloration-resisting.
Embodiment 5
The formula of anti-decolouring silver alloy is as follows: silver 92.5%, copper 3.0%, zinc 1.5%, tin 0.4%, indium 2.5%, germanium 0.1%.
Each elementary composition to be weighed mixing by said ratio, adopt vacuum induction melting method to carry out high-frequency vacuum melting, vacuum tightness is more than or equal to 10
-2pa, smelting temperature is 950 ~ 1050 DEG C.After alloy all melts, be filled with high-purity argon gas as protective atmosphere, pour into silver alloys ingot casting.Then by silver alloys ingot casting 650 DEG C of homogenizing thermal treatments 8 hours, then after cold rolling at room temperature, make silver alloys sheet material.Again silver alloys sheet material after 0.5 hour, is prepared anti-tarnishing silver alloy sample 4# 750 DEG C of annealing thermal treatments.
Anti-tarnishing silver alloy sample 4# prepared by the present embodiment is placed in 0.1mol/lNa
2variable color experiment is carried out in S aqueous medium.Meanwhile, with Sterling silver alloy alloy sample 4* in contrast, 0.1mol/lNa is placed in equally
2variable color experiment is carried out in S aqueous medium.Can be found out by the sample situation after comparing variable color experiment, in the present embodiment, the anti-tarnishing ability of silver alloys sample 4# is obviously better than Sterling silver alloy alloy sample 4*.
Embodiment 6
The formula of anti-decolouring silver alloy is as follows: silver 92.0%, copper 5.0%, zinc 0.5%, tin 0.5%, indium 1.0%, germanium 1.0%.
Each elementary composition to be weighed mixing by said ratio, adopt vacuum induction melting method to carry out high-frequency vacuum melting, vacuum tightness is more than or equal to 10
-2pa, smelting temperature is 950 ~ 1050 DEG C.After alloy all melts, be filled with high-purity argon gas as protective atmosphere, pour into silver alloys ingot casting.Then by silver alloys ingot casting 750 DEG C of homogenizing thermal treatments 4 hours, then after cold rolling at room temperature, make silver alloys sheet material.Again silver alloys sheet material after 1.0 hours, is prepared anti-tarnishing silver alloy sample 5# 550 DEG C of annealing thermal treatments.
Anti-tarnishing silver alloy sample 5# prepared by the present embodiment is placed in 0.1mol/lNa
2variable color experiment is carried out in S aqueous medium.Meanwhile, with Sterling silver alloy alloy sample 5* in contrast, 0.1mol/lNa is placed in equally
2variable color experiment is carried out in S aqueous medium.Can be found out by the sample situation after comparing variable color experiment, in the present embodiment, the anti-tarnishing ability of silver alloys sample 5# is obviously better than Sterling silver alloy alloy sample 5*.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (10)
1. an anti-tarnishing silver alloy, by weight percentage, comprises following elementary composition: silver 90.0 ~ 92.5%, copper 0.5 ~ 5%, zinc 0.5 ~ 2.0%, tin 0.2 ~ 1.1%, indium 1.0 ~ 3.0%, germanium 0.1 ~ 6%.
2. anti-tarnishing silver alloy according to claim 1, is characterized in that, by weight percentage, comprises following elementary composition: silver 92.0 ~ 92.5%, copper 3.0 ~ 5.0%, zinc 0.5 ~ 1.9%, tin 0.2 ~ 0.5%, indium 1.0 ~ 2.5%, germanium 0.1 ~ 1.0%.
3. a preparation method for anti-tarnishing silver alloy, specifically comprises the following steps:
1) each elementary composition in alloy material is added rear mixing by proportioning, adopt vacuum induction melting method to carry out melting;
2) after alloy all melts, be filled with protective atmosphere, pour into alloy cast ingot;
3) by step 2) in the alloy cast ingot that obtains carry out homogenizing thermal treatment, then carry out cold rollingly making alloy slice material;
4) by step 3) in obtain alloy sheet material carry out annealing thermal treatment again, obtain anti-decolouring silver alloy.
4. the preparation method of anti-tarnishing silver alloy according to claim 3, is characterized in that, step 1) in, described melting is carried out in vacuum heat treatment furnace; Described smelting temperature is 950 ~ 1050 DEG C.
5. the preparation method of anti-tarnishing silver alloy according to claim 3, is characterized in that, step 2) in, described protective atmosphere is high-purity argon gas.
6. the preparation method of anti-tarnishing silver alloy according to claim 3, is characterized in that, step 3) in, the heat treated temperature of described homogenizing is 650 ~ 750 DEG C.
7. the preparation method of anti-tarnishing silver alloy according to claim 3, is characterized in that, step 3) in, the described homogenizing heat treated time is 4 ~ 8 hours.
8. the preparation method of anti-tarnishing silver alloy according to claim 3, is characterized in that, step 4) in, the heat treated temperature of described annealing is 550 ~ 750 DEG C.
9. the preparation method of anti-tarnishing silver alloy according to claim 3, is characterized in that, step 4) in, the described annealing heat treated time is 0.5 ~ 1 hour.
10. according to the arbitrary described purposes of anti-tarnishing silver alloy on bullion, ornament of claim 1-2.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105441709A (en) * | 2016-01-20 | 2016-03-30 | 宋晓玲 | Process for preparing anti-discoloration silver alloy |
| CN106555072A (en) * | 2016-11-21 | 2017-04-05 | 西北工业大学 | A kind of sulfuration resistant discoloration Ag Cu Ge alloys and preparation method thereof |
| CN109022891A (en) * | 2018-09-17 | 2018-12-18 | 深圳市品越珠宝有限公司 | A kind of ornaments silver alloy and preparation method thereof |
| CN109940166A (en) * | 2017-12-20 | 2019-06-28 | 东莞市精研粉体科技有限公司 | A kind of fastness 3D printing silver alloy spherical powder |
| 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 |
| CN111690837A (en) * | 2020-07-10 | 2020-09-22 | 深圳市瑜悦珠宝有限公司 | Silver alloy and preparation method thereof |
| CN112323030A (en) * | 2020-11-17 | 2021-02-05 | 昆山全亚冠环保科技有限公司 | Silver alloy target material and preparation method thereof |
| WO2024012225A1 (en) * | 2022-07-12 | 2024-01-18 | 华为技术有限公司 | Silver alloy and preparation method therefor, conductive film, and display device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105441709A (en) * | 2016-01-20 | 2016-03-30 | 宋晓玲 | Process for preparing anti-discoloration silver alloy |
| 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 |
| CN106555072A (en) * | 2016-11-21 | 2017-04-05 | 西北工业大学 | A kind of sulfuration resistant discoloration Ag Cu Ge alloys and preparation method thereof |
| CN109940166A (en) * | 2017-12-20 | 2019-06-28 | 东莞市精研粉体科技有限公司 | A kind of fastness 3D printing silver alloy spherical powder |
| CN109022891A (en) * | 2018-09-17 | 2018-12-18 | 深圳市品越珠宝有限公司 | A kind of ornaments silver alloy and preparation method thereof |
| 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 |
| CN111690837A (en) * | 2020-07-10 | 2020-09-22 | 深圳市瑜悦珠宝有限公司 | Silver alloy and preparation method thereof |
| CN112323030A (en) * | 2020-11-17 | 2021-02-05 | 昆山全亚冠环保科技有限公司 | Silver alloy target material and preparation method thereof |
| WO2024012225A1 (en) * | 2022-07-12 | 2024-01-18 | 华为技术有限公司 | Silver alloy and preparation method therefor, conductive film, and display device |
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