CN108588468A - One kind having yellow appearance and has 925 silver alloy of high rigidity and its technique - Google Patents
One kind having yellow appearance and has 925 silver alloy of high rigidity and its technique Download PDFInfo
- Publication number
- CN108588468A CN108588468A CN201810880944.0A CN201810880944A CN108588468A CN 108588468 A CN108588468 A CN 108588468A CN 201810880944 A CN201810880944 A CN 201810880944A CN 108588468 A CN108588468 A CN 108588468A
- Authority
- CN
- China
- Prior art keywords
- alloy
- temperature
- silver
- degree
- jewellery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C5/00—Alloys based on noble metals
- C22C5/06—Alloys based on silver
- C22C5/08—Alloys based on silver with copper as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/14—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of noble metals or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/026—Anodisation with spark discharge
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/34—Anodisation of metals or alloys not provided for in groups C25D11/04 - C25D11/32
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Adornments (AREA)
Abstract
There is yellow appearance the invention discloses one kind and have 925 silver alloy of high rigidity and its technique.According to weight percent, the ingredient of the alloy is:P:0.2‑0.3wt.%,Li:0.5‑0.6wt.%,Zn:1.4‑1.8wt.%,Re:0.2‑0.4wt.%,Co:1.0‑1.5wt.%,W:0.3‑0.5wt.%,Ag:92.0.0 93.0wt.%, surplus are copper.The material provides a kind of virgin material having yellow appearance for China's jewellery with 925 silver alloy, and the material has excellent high rigidity and wear-resistant feature.The implementation and industrialization of the material can effectively push the demand of the update of China's jewellery industry product and industry upgrading, and can obtain plentiful and substantial economic gain and social benefit while solving industry problems.
Description
Technical field
The present invention relates to technical field of alloy, specifically, being related to a kind of silver alloy.
Background technology
Silver is silvery white noble metal, has charming color and luster, is begun to very early for making ornaments.In addition, silver is in industry
On also have very extensive purposes, electronic component and the instrument etc. of various precision instruments is made using its electric conductivity as usual.Silver by
In too soft, therefore often adulterate other components and form silver alloy.It is commonly used to make the silver alloy of jewellery to be Sterling silver alloy, it is in Britain
It is up to 800 years as long as standard silver, ingredient 92.5Ag-7.5Cu.The silver alloy is just frequently referred to as 925 silver medals, that is,
Generally refer to the silver product of silver content 92.5wt% or so.
Due to can preferably inlay various jewels, produce that various shapes, color and luster are bright and new, style is unique, technique is exquisite
Silverware, the 925 silver medals fashionable whole world rapidly.The raising of jewellery silver alloy hardness promotes the fast development of jewellery industry,
Also originally backward processing technology is changed, it can be with mass production.Along with the material inlayed is synthesized using high-tech, Ke Yida
To the degree with the natural high-grade true and false hardly possible point of product.For objectively, silver jewellery had not only maintained the appearance of noble metal, but also substantially reduced
For cost, the product is made to be popularized rapidly.
Silver is readily generated a kind of extremely poorly soluble silver salt when encountering hydrogen sulfide gas or sulphion in air, silver is in sky
As long as meeting the hydrogen sulfide gas or sulphion of several trillion to tens part per trillion in gas, just vulcanization is produced in silver surface
Silver.Because silver sulfide is grey black, with the aggravation of reaction, silver sulfide, which increases, to be thickened, silver surface color just gradually by
The last blackening of leucismus xanthochromia ash.The source of Air Hydrogen Sulfide is a variety of.It is the excrement of humans and animals first by bacterium point
A large amount of hydrogen sulfide are generated after solution, and hydrogen sulfide is also generated after the protein corruption in plant.In addition also contain sulphur in the sweat of people,
It can make in silver tarnish, especially urban air the hydrogen sulfide caused by sewage and garbage emission when it and silverware contact more
It is surprising.
In addition, the copper contained in 925 silver medals is also the material for being easy discoloration and corrosion under atmospheric environment.Copper is in silver alloy
Effect be to improve alloy rigidity and metallurgical performance, but copper also has stronger affinity with oxygen.Alloy casting, remelting and
In heat treatment process, if there are oxygen in atmosphere, copper, which will react, generates copper oxide and cuprous oxide.Its influence not only exists
Alloy surface, and there is certain penetration capacity, even if polishing is all difficult to remove sometimes, cause the discarded of product.That is,
Since copper aoxidizes the vulcanization and the corrosive chameleon that generate compound and exacerbate silver alloy.
In order to solve the problems, such as the easy to change of 925 silver alloy ornaments, expert both domestic and external by studying for many years, and herein side and
Achieve no small progress.The appearance and industrialization of 925 silver alloy of fastness also allow silver alloy jewellery in the market to obtain newly
Improvement, taken Gospel to silver alloy ornaments manufacturer and consumer.But presently, 925 silver alloy of fastness
It is the speed for having delayed sulfide to be formed in relatively low degree, that is to say, that will sulphide staining compared with after using 2 months
Common 925 silver alloy, current 925 silver alloy of general fastness can only postpone till Coloring Time 8 months or so.And such
Alloy also faces that casting flaw is apparent, crackle yield, and low-temperature brittle fracture is apparent and a series of of cold-forming property difference lack
Point.In addition, there is no form abundant series as colored karat gold for coloured silk silver alloy at present.Thus, silver jewellery in the market is big
Mostly it is white, or the plated film coloured silk silver alloy for using the method for ion plating to obtain.Such alloy does not have after use
Enough corrosion resistance and change colour, or leak out matrix alloy because of abrasion and sulphide staining accelerated.
Although China's jewellery materials industry is quickly grown, due to starting evening, starting point is low, on some sport technique segments with state
International standard is compared to also there is a big difference.Industry problems for a long time do not solve, not only affect Related product the market sales volume and
Usage experience, also it is serious limit such product international scope market occupancy volume.It develops and industrialization has ideal table
925 silver alloy of the jewellery of complexion pool and excellent processability, the problem to developing and developing new material solves and industrialization meeting
There is prodigious market value.In face of the domestic and international market competition being growing more intense, it is necessary to which paces of accelerating restructuring, this is not only
The needs of China's jewellery industry survival and development and the development trend of world today's related field.
Invention content
The purpose of the present invention is to overcome the deficiency in the prior art, and providing one kind having yellow appearance and have high rigidity 925
Silver alloy and its technique.
To achieve the goals above, the present invention adopts the following technical scheme that：
One kind having yellow appearance and has 925 silver alloy of high rigidity and its technique.By weight percentage, the group of alloy becomes
P:0.2-0.3wt.%,Li:0.5-0.6wt.%,Zn:1.4-1.8wt.%,Re:0.2-0.4wt.%,Co:1.0-1.5wt.%,W:
0.3-0.5wt.%,Ag:92.0.0-93.0wt.%, surplus is copper.
Above-mentioned one kind having yellow appearance and has 925 silver alloy of high rigidity and its technique, includes the following steps：It will be as above
The raw material of proportioning is added in the electric induction furnace under ar gas environment, and uses graphite crucible;10 points are kept the temperature when melting at 1200 degree
Clock, it is uniform by Efco-Northrup furnace electromagnetic agitation;1 minute being kept the temperature at 1200 degree after stirring evenly and being cast come out of the stove;Alloy casting is adopted
With the punching block of diameter 20-30mm, and cooled down by the way of water cooling.The ingot casting of gained is rolled at room temperature, every time
It is 20-30% to roll lower amount;It is 600 degree per intermediate anneal temperature after rolling twice, keeps the temperature 0.5 hour;Material is finally rolled into thickness
Degree is the alloy sheets of 10-20mm;In jewellery forming process, needs to carry out vacuum annealing process, eliminate answering in process
Power;Wherein, temperature is 400 degree, and the time is 1 hour；Finally during jewellery colour, need to carry out low-level oxidation operation, greatly
200 degree of temperature under compression ring border, time are 20 minutes.
Compared with prior art, the present invention has the advantages that：
（1）The type of jewelry gold alloy is very more, also colourful a variety of other than the inherent color for having gold
Colored karat gold.And these colored karat golds are smelted and processing performance is excellent, have been achieved for the very big market sales volume.But it is right
For jewellery silver alloy, particularly with 925 silver medals, there are no form complete colored silver alloy series.Reason is such
The silver content of alloy is up to 92.5wt%.Alloy content to rely on 7.5wt% obtains excellent sulfidation-resistance energy, has simultaneously
Standby excellent color appearance and processing performance, there are no relevant jewellery materials to emerge on domestic and international market at present.This patent carries
A kind of novel 925 silver alloy with yellow perception are supplied, and the alloy has excellent discoloration-resistant performance.The alloy is not only
Color ag material provides a kind of novel materialogy solution, is expected to obtain the great market sales volume after industrialization.
（2）The characteristic color of matrix alloy phase is not leaned in the appearance of such alloy surface color and luster instead of, by jewellery system
Final stage before standby completion generates one layer of fine and close oxide skin(coating) by the technology of surface low-level oxidation in material surface, can be with
So that jewellery surface has the color of needs.And currently on the market, have the silver jewellery of beautiful non-white generally by surface
The method of ion plating carries out the plating process of a variety of colors.But gained coating is easy to fade and wear.After using 6 months,
It will to decorporate due to the color that coating is brought due to abrasion.Further, since expose matrix silver alloy, but make silver and
Hydrogen sulfide effect generates the silver sulfide of black, and jewellery blackening and erodable section is caused to fall off.The silver alloy of present patent application protection,
Due to the oxide layer that appearance color is formed after matrix alloy oxidation, thus can also be new after surface layer is partially damaged
New oxide layer is formed on fresh matrix, so that the color and luster perception on surface layer is repaired.Thus, from the point of view of materialogy angle
With self-repair function, and make the jewellery prepared using the silver alloy that there is the ability remained unchanged for a long time.The material is in head
Decorations molding will subsequently carry out low-level oxidation operation so that the oxide layer of one layer of yellow of Surface Creation.The silver prepared using the alloy is first
Decorations are still generated without significantly fading with surface polishing scratch after using 4 years, and common silver jewellery will after using 2 months
Blackening is generated because of contact hydrogen sulfide or sulphion.
（3）There are a large amount of very tiny stomatas in the casting of 925 traditional silver alloy after being cast, is just formed after polishing
Pit, makes the cross section of ring seem very coarse, this kind of defect can be such that the mechanical property of casting significantly reduces.Due to head
Decorations will carry out various forms of precision casting and forging moldings, and the casting character of alloy has very important shadow to product quality
It rings.The alloy of present patent application protection has loose solidification temperature range, can reach 860-920 degree.In freezing range height
Cast under conditions of up to 60 degree, not only can be avoided the formation of shrinkage cavity in casting, it is also possible that the tissue of casting with
The form of equiax crystal occurs, and avoids the generation of dendrite.In addition, cast(ing) surface is bright and clean, without apparent sand hole, cinder hole, stomata
Etc. casting flaws, connect between the rib of sieve intact, do not generate any contraction crack.
（4）The material has excellent high rigidity and crocking resistance.Common anti-tarnishing silver alloy currently on the market
Hardness of cast form is relatively low, often less than 60HV.Present patent application protection silver alloy, due to carried out the structure in materialogy and
Optimizing components, thus there is high hardness, 80-92HV can be reached.In addition, the material has excellent crocking resistance.
Under the conditions of sufficient lubrication, friction coefficient 0.03-0.04 is not 0.06-0.07 under lubricating condition.Wearability significantly carries
Height increases 60-70% than common silver alloy.The silver jewellery prepared using the alloy, will not leave even if nail surface is streaked
Any cut.Using the silver jewellery of the material preparation, after normal use 4 years, surface is not also because contacting making for hard object formation
Use cut.It thus ensure that the surface perception and user experience when alloy uses to the full extent.It is contemplated that the material
Implementation and industrialization will obtain great Social benefit and economic benefit.
Specific implementation mode
Embodiment 1
One kind having yellow appearance and has 925 silver alloy of high rigidity and its technique.By weight percentage, the group of alloy becomes
P:0.2wt.%,Li:0.5wt.%,Zn:1.4wt.%,Re:0.2wt.%,Co:1.0wt.%,W:0.5wt.%,Ag:
92.0.0wt.%, surplus is copper.Above-mentioned one kind having yellow appearance and has 925 silver alloy of high rigidity and its technique, including such as
Lower step：As above the raw material matched is added in the electric induction furnace under ar gas environment, and uses graphite crucible;When melting
1200 degree keep the temperature 10 minutes, uniform by Efco-Northrup furnace electromagnetic agitation;1 minute being kept the temperature at 1200 degree after stirring evenly and being poured cast out
Stove;Alloy casting uses the punching block of diameter 20-30mm, and is cooled down by the way of water cooling.By the ingot casting of gained at room temperature into
Row rolling, it is 20-30% that every time, which rolls lower amount,;It is 600 degree per intermediate anneal temperature after rolling twice, keeps the temperature 0.5 hour;Finally
Material is rolled into the alloy sheets that thickness is 10-20mm;In jewellery forming process, needs to carry out vacuum annealing process, eliminate
Stress in process;Wherein, temperature is 400 degree, and the time is 1 hour；Finally during jewellery colour, need to carry out
Low-level oxidation operates, 200 degree of temperature under atmospheric environment, and the time is 20 minutes.
The alloy has loose solidification temperature range, can be avoided the formation of shrinkage cavity in casting,.In addition, casting table
Face is bright and clean, without casting flaws such as apparent sand hole, cinder hole, stomatas, connects intact between the rib of sieve, does not generate any receipts
Draw line.The material will subsequently carry out low-level oxidation operation in jewellery molding so that the oxide layer of one layer of yellow of Surface Creation.From material
With self-repair function from the point of view of material angle, and make the jewellery prepared using the silver alloy that there is the energy remained unchanged for a long time
Power.Due to having carried out the structure in materialogy and optimizing components, thus there is high hardness, 80-92HV can be reached.Using
Silver jewellery prepared by the alloy is still generated without significantly fading with surface polishing scratch after using 4 years, and common silver jewellery
Blackening will be generated after using 2 months because of contact hydrogen sulfide or sulphion.
Embodiment 2
One kind having yellow appearance and has 925 silver alloy of high rigidity and its technique.By weight percentage, the group of alloy becomes
P:0.3wt.%,Li:0.6wt.%,Zn:1.8wt.%,Re:0.4wt.%,Co:1.5wt.%,W:0.5wt.%,Ag:93.0wt.%,
Surplus is copper.Above-mentioned one kind having yellow appearance and has 925 silver alloy of high rigidity and its technique, includes the following steps：It will be as
The raw material of upper proportioning is added in the electric induction furnace under ar gas environment, and uses graphite crucible;10 are kept the temperature when melting at 1200 degree
Minute, it is uniform by Efco-Northrup furnace electromagnetic agitation;1 minute being kept the temperature at 1200 degree after stirring evenly and being cast come out of the stove;Alloy casting
Using the punching block of diameter 20-30mm, and cooled down by the way of water cooling.The ingot casting of gained is rolled at room temperature, per pass
It is secondary to roll lower amount for 20-30%;It is 600 degree per intermediate anneal temperature after rolling twice, keeps the temperature 0.5 hour;Finally material is rolled into
Thickness is the alloy sheets of 10-20mm;In jewellery forming process, needs to carry out vacuum annealing process, eliminate in process
Stress;Wherein, temperature is 400 degree, and the time is 1 hour；Finally during jewellery colour, need to carry out low-level oxidation operation,
200 degree of temperature under atmospheric environment, time are 20 minutes.
The alloy has loose solidification temperature range, can be avoided the formation of shrinkage cavity in casting,.In addition, casting table
Face is bright and clean, without casting flaws such as apparent sand hole, cinder hole, stomatas, connects intact between the rib of sieve, does not generate any receipts
Draw line.The material will subsequently carry out low-level oxidation operation in jewellery molding so that the oxide layer of one layer of yellow of Surface Creation.From material
With self-repair function from the point of view of material angle, and make the jewellery prepared using the silver alloy that there is the energy remained unchanged for a long time
Power.Due to having carried out the structure in materialogy and optimizing components, thus there is high hardness, 80-92HV can be reached.Using
Silver jewellery prepared by the alloy is still generated without significantly fading with surface polishing scratch after using 4 years, and common silver jewellery
Blackening will be generated after using 2 months because of contact hydrogen sulfide or sulphion.
Embodiment 3
One kind having yellow appearance and has 925 silver alloy of high rigidity and its technique.By weight percentage, the group of alloy becomes
P:0.2wt.%,Li:0.5wt.%,Zn:1.5wt.%,Re:0.3wt.%,Co:1.2wt.%,W:0.4wt.%,Ag:
92.0.0wt.%, surplus is copper.Above-mentioned one kind having yellow appearance and has 925 silver alloy of high rigidity and its technique, including such as
Lower step：As above the raw material matched is added in the electric induction furnace under ar gas environment, and uses graphite crucible;When melting
1200 degree keep the temperature 10 minutes, uniform by Efco-Northrup furnace electromagnetic agitation;1 minute being kept the temperature at 1200 degree after stirring evenly and being poured cast out
Stove;Alloy casting uses the punching block of diameter 20-30mm, and is cooled down by the way of water cooling.By the ingot casting of gained at room temperature into
Row rolling, it is 20-30% that every time, which rolls lower amount,;It is 600 degree per intermediate anneal temperature after rolling twice, keeps the temperature 0.5 hour;Finally
Material is rolled into the alloy sheets that thickness is 10-20mm;In jewellery forming process, needs to carry out vacuum annealing process, eliminate
Stress in process;Wherein, temperature is 400 degree, and the time is 1 hour；Finally during jewellery colour, need to carry out
Low-level oxidation operates, 200 degree of temperature under atmospheric environment, and the time is 20 minutes.
The alloy has loose solidification temperature range, can be avoided the formation of shrinkage cavity in casting,.In addition, casting table
Face is bright and clean, without casting flaws such as apparent sand hole, cinder hole, stomatas, connects intact between the rib of sieve, does not generate any receipts
Draw line.The material will subsequently carry out low-level oxidation operation in jewellery molding so that the oxide layer of one layer of yellow of Surface Creation.From material
With self-repair function from the point of view of material angle, and make the jewellery prepared using the silver alloy that there is the energy remained unchanged for a long time
Power.Due to having carried out the structure in materialogy and optimizing components, thus there is high hardness, 80-92HV can be reached.Using
Silver jewellery prepared by the alloy is still generated without significantly fading with surface polishing scratch after using 4 years, and common silver jewellery
Blackening will be generated after using 2 months because of contact hydrogen sulfide or sulphion.
Claims (3)
1. one kind having yellow appearance and has 925 silver alloy of high rigidity and its technique；According to weight percent, the alloy at
It is divided into:P:0.2-0.3wt.%,Li:0.5-0.6wt.%,Zn:1.4-1.8wt.%,Re:0.2-0.4wt.%,Co:1.0-
1.5wt.%,W:0.3-0.5wt.%,Ag:92.0.0-93.0wt.%, surplus is copper.
2. a kind of according to claim 1 have yellow appearance and have 925 silver alloy of high rigidity and its technique, feature exist
In including following smelting step：As above the raw material matched is added in the electric induction furnace under ar gas environment, and uses graphite earthenware
Crucible;10 minutes are kept the temperature at 1200 degree when melting, it is uniform by Efco-Northrup furnace electromagnetic agitation;1 is kept the temperature after stirring evenly at 1200 degree
Minute and cast come out of the stove;Alloy casting uses the punching block of diameter 20-30mm, and is cooled down by the way of water cooling.
3. a kind of according to claim 1 have yellow appearance and have 925 silver alloy of high rigidity and its technique, feature exist
In comprising as follows use step：The ingot casting of gained is rolled at room temperature, it is 20-30% that every time, which rolls lower amount,;It is every to roll twice
Intermediate anneal temperature is 600 degree after system, keeps the temperature 0.5 hour;Material is finally rolled into the alloy sheets that thickness is 10-20mm;
In jewellery forming process, needs to carry out vacuum annealing process, eliminate the stress in process;Wherein, temperature is 400 degree, when
Between be 1 hour；Finally during jewellery colour, need to carry out low-level oxidation operation, 200 degree of temperature under atmospheric environment, the time
It is 20 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810880944.0A CN108588468A (en) | 2018-08-04 | 2018-08-04 | One kind having yellow appearance and has 925 silver alloy of high rigidity and its technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810880944.0A CN108588468A (en) | 2018-08-04 | 2018-08-04 | One kind having yellow appearance and has 925 silver alloy of high rigidity and its technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108588468A true CN108588468A (en) | 2018-09-28 |
Family
ID=63623021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810880944.0A Withdrawn CN108588468A (en) | 2018-08-04 | 2018-08-04 | One kind having yellow appearance and has 925 silver alloy of high rigidity and its technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108588468A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2018
- 2018-08-04 CN CN201810880944.0A patent/CN108588468A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108425029A (en) | A kind of not the argentiferous 18K of resistance to brittle failure rose golds and its processing technology | |
| CN108531801A (en) | A kind of findings have the 10K dark funds and its technique of excellent abrasion resistance properties | |
| CN108588468A (en) | One kind having yellow appearance and has 925 silver alloy of high rigidity and its technique | |
| CN108467964A (en) | With the yellow as gold and corrosion resistant jewellery platinum alloy | |
| CN110106385A (en) | One kind having the corrosion-resistant billon of resistance to brittle failure of this spot effect 18K and its technique | |
| CN108842085A (en) | One kind is with red appearance and 925 silver alloy of hydrogen sulfide corrosion-resistant and its technique | |
| CN108842087A (en) | One kind is with violet appearance and 925 silver alloy of resistance to brittle failure and its technique | |
| CN108842089A (en) | One kind having the light-weighted corrosion-resistant yellow seedling silver alloy of low-density and its technique | |
| CN108588469A (en) | Have 958 silver alloy of yellow and its technique of high rigidity and abrasion resistance properties | |
| CN108467963A (en) | With big variable ability yellow jewellery palldium alloy and its processing technology | |
| CN108796283A (en) | A kind of corrosion-resistant yellow jewellery palldium alloy and its processing technology | |
| CN108866374A (en) | The golden alloy of the corrosion-resistant 18K ash of grey and its technique with stamping resistance performance | |
| CN108866377A (en) | Hydrogen sulfide corrosion-resistant, which changes colour, has the silver alloy and its processing technology of red appearance | |
| CN108531763A (en) | With extremely low work hardening rate and the grey gold alloys of the 14K of resistance to brittle failure and its technique | |
| CN108796280A (en) | A kind of jewellery of hydrogen sulfide corrosion-resistant blue 18K gold and its technique | |
| CN108866382A (en) | A kind of green Riamb's alloy of the lead-free and mercury-free Tibet figure of buddha having spinodal decomposition feature | |
| CN108842088A (en) | The anticorrosive yellow low silver content alloy of seedling silver jewellery high rigidity and its technique | |
| CN108796288A (en) | A kind of red silver jewellery 958 alloys and its processing technology of die casting | |
| CN108728681A (en) | A kind of corrosion-resistant rub resistance jewellery material rosiness palldium alloy | |
| CN108913936A (en) | Rub resistance corrosion-resistant jewellery material 10K ash billon and its technique | |
| CN108796278A (en) | A kind of jewellery large deformation stamping resistance brownish red 18K billons and its technique | |
| CN108796289A (en) | Findings have blue gloss and 958 silver alloy and its technique of fade resistant | |
| CN108950287A (en) | With excellent punching performance and high elastic modulus purple seedling silver alloy and its technique | |
| CN108796294A (en) | A kind of Tibetan silver the jewellery low silver alloy of stamping resistance high elastic modulus blue and its technique | |
| CN108796295A (en) | A kind of lightweight Tibetan silver the jewellery low silver alloy of resistance to vulcanization brown and its technique |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180928 |
|
| WW01 | Invention patent application withdrawn after publication |