CN108588469A - Have 958 silver alloy of yellow and its technique of high rigidity and abrasion resistance properties - Google Patents
Have 958 silver alloy of yellow and its technique of high rigidity and abrasion resistance properties Download PDFInfo
- Publication number
- CN108588469A CN108588469A CN201810883065.3A CN201810883065A CN108588469A CN 108588469 A CN108588469 A CN 108588469A CN 201810883065 A CN201810883065 A CN 201810883065A CN 108588469 A CN108588469 A CN 108588469A
- Authority
- CN
- China
- Prior art keywords
- alloy
- silver
- temperature
- degree
- yellow
- 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- Withdrawn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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Adornments (AREA)
Abstract
The invention discloses 958 silver alloy of yellow and its technique that have high rigidity and abrasion resistance properties.According to weight percent, the ingredient of the alloy is:Be:0.4‑0.5wt.%,Sr:0.6‑0.8wt.%,Ta:0.2‑0.4wt.%,W:0.3‑0.5wt.%,Zn:1.4‑1.6wt.%,Ge:0.5‑0.8wt.%,Ag:95.0.0 96.0wt.%, surplus are copper.The material provides a kind of virgin material having yellow appearance for China's jewellery with 958 silver alloy, and the material has excellent 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 has white gloss, is located in periodic table between gold and copper.It is remote although chemical inertness is relatively low in noble metal
Stablize than copper and aluminium, is not aoxidized heating in air.The earliest purposes of silver is ornament and currency, is used as eating later
Tool.With the development of industry, other purposes have gradually been opened up, such as:Electric contactor, brazing filler metal alloy, catalyst and photographic material etc..
China is a multi-ethnic country, and ethnic group's Silver Jewelry has always larger market.With the improvement of people's living standards, silver jeweleries
Product and silverware more can quickly enter general family.
Since silver is cheap compared to for gold, soft texture can be processed into various jewellery ornaments, tableware etc..If
If gold signifies rich and honour, then glittering silver-colored light is also same moving, so price factor is also silver ornaments more by common
One of the main reason for common people welcome.The silverware prepared using ag material does not comprise only plain, pure and beautiful silver-colored goods of furniture for display rather than for use, silver jewellery
With silver-colored gift series；There is beautiful and generous, economical and practical dinner service set；The also luxurious rich and honour magnificent fine silver tableware system of style
Row.Many product-formings are true to nature, exquisite workmanship, deep to be welcome by domestic and international customer.In China, the purposes of silver jewellery and vessel is
Become diversification, is dispersed throughout each stratum of society.
Law of nature is taught that, after any material absorption energy, just becomes unstable in upper state, in science
Referred to as thermodynamic phase.Therefore, metal meeting nature constantly releases energy, tries hard to return to original, extremely stable mine
Stone state.Silver is argentite（Ag2S）Metallic silver is obtained after high-temperature heating.Fine silver becomes performance due to self-energy raising
It is very unstable, there is prodigious affinity between silver and sulphur in addition.Silver holds very much when encountering hydrogen sulfide gas or sulphion in air
Easily generate extremely poorly soluble silver salt（Ag2S）, which is exactly the main component of argentite.This chemical change can be in pole
Occur in the case of micro.As long as silver meets the hydrogen sulfide or sulphion of several trillion to tens part per trillion in air,
The surface of silver can be made to produce silver sulfide.Because silver sulfide is grey black, with the aggravation of reaction, silver sulfide increases
It thickens, silver surface color is just gradually by the last blackening of leucismus xanthochromia ash.
The characteristic of silver itself is very soft, it is easy to scratch, but the silver alloy that alloying element is formed, which is added, has excellent power
Learn performance.Traditional decorations silver mainly has 3 kinds of trades mark:Fine silver, 958 silver medals and 925 silver medals, wherein 958 silver medals and 925 silver medals are using copper as conjunction
The bianry alloy that gold element is constituted.The silver content of 958 silver alloy is high, can further increase the material by the method for alloying
The intensity and processing performance of material, and the hydrogen sulfide corrosion-resistant ability of material is promoted as far as possible.With the development of material science,
The formula of silver alloy is also constantly updated, and number of types of 958 silver medal occurs, because of the metallic element type, content, processing of its addition
Method is variant, leads to the corrosion resistance of each 958 silver medal also some differences.
Occurs panoramic 958 anti-tarnishing silver alloy on the market, but the feedback result used from jewellery enterprise is come
It sees, many products all have this or that.Description and client's hope value with product also have quite poor away from.At present and
Speech, these alloy jewellerys of customer requirement at least keep 1 year it is non-discolouring, but relevant enterprise is very weak to being ensured of for this respect
Degree.It is largely that the discoloration-resisting of alloy itself does not protrude outside the influence for taking care of mode among these in addition to use environment.
Although with palladium, the silver alloy of the noble metals such as platinum has preferable discoloration-resisting, but the additive amount of these elements must be very big
（40wt% or more）.But presently, 958 silver alloy of fastness has only delayed sulfide to be formed in relatively low degree
Speed, that is to say, that compared with after using 2 months will sulphide staining common 925 silver alloy, current general fastness 958
Silver alloy can only postpone till Coloring Time 8 months or so.And to also face casting flaw apparent for such alloy, and cold working
A series of disadvantages of poor performance.
In addition, there is no form abundant series as colored karat gold for coloured silk silver alloy at present.Thus, silver in the market
Jewellery are white mostly, or the plated film coloured silk silver alloy for using the method for ion plating to obtain.Such alloy is after use
Do not have enough corrosion resistances and change colour, or leaks out matrix alloy because of abrasion and sulphide staining is accelerated.It opens
Sending out simultaneously industrialization has 958 silver alloy of jewellery of ideal surfaced color and luster and excellent processability, to developing and developing new material
Problem solve and industrialization have prodigious market value.In face of the domestic and international market competition being growing more intense, it is necessary to accelerate
Structural adjustment paces, this is not only the needs of China's jewellery industry survival and development and the development of world today's related field
Trend.
Invention content
The purpose of the present invention is to overcome the deficiency in the prior art, provides the yellow 958 for having high rigidity and abrasion resistance properties
Silver alloy and its technique.
To achieve the goals above, the present invention adopts the following technical scheme that：
Have 958 silver alloy of yellow and its technique of high rigidity and abrasion resistance properties.By weight percentage, the group of alloy becomes
Be:0.4-0.5wt.%,Sr:0.6-0.8wt.%,Ta:0.2-0.4wt.%,W:0.3-0.5wt.%,Zn:1.4-1.6wt.%,Ge:
0.5-0.8wt.%,Ag:95.0-96.0wt.%, surplus are copper.
Above-mentioned 958 silver alloy of yellow and its technique for having high rigidity and abrasion resistance properties, 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 520 degree per intermediate anneal temperature after rolling twice, keeps the temperature 0.8 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 350 degree, and the time is 1 hour；Finally during jewellery colour, need to carry out low-level oxidation operation, greatly
240 degree of temperature under compression ring border, time are 30 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 958 silver medals, there are no form complete colored silver alloy series.Reason is such
The silver content of alloy is up to 95.8wt%.Alloy content to rely on 4.2wt% 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.Although China
Jewellery materials industry is quickly grown, but due to starting evening, starting point is low, also has very compared with world level on some sport technique segments
Big gap.Industry problems do not solve for a long time, not only affect the market sales volume and usage experience of Related product, also serious
Limit such product international scope market occupancy volume.This patent provides a kind of novel 958 silver medals with yellow perception
Alloy, and the alloy has excellent discoloration-resistant performance.The alloy is not only that 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.The silver alloy of present patent application protection, since appearance color derives from matrix alloy
The oxide layer formed after oxidation, thus new oxide layer can also be formed on fresh matrix after surface layer is partially damaged,
So that the color and luster perception on surface layer is repaired.Thus, with self-repair function from the point of view of materialogy angle, and to use
Jewellery prepared by the silver alloy have the ability remained unchanged for a long time.This film is in different media, due to unpolarizing
As a result, to show different corrosion resistances, the corrosion resistance of strong acid, strong basicity sweat is also relatively stablized.The material
The jewellery of preparation are in the case where normal human body wears environment that metachromatism does not occur in 4 years.
（3）Jewelry Surface Quality, which has, to be clearly required, and most jewellery will pass through polishing, to reach table
Degree of the face light like mirror.Traditional 958 silver alloy polishing frequently encounters the problem of several typical cases, such as pebbles, recess, draws
Trace, comet tail etc..When the coarse grains of alloy, it is easy to form pebbles.When alloy is there are when shrinkage cavity gas hole defect, it is easy
Form polishing depression problem.When occurring high rigidity segregation phase or field trash in alloy grain tissue, easy formation polishing cut,
The problems such as comet tail.Thus, crystal grain refinement improves the main path that casting character is improvement jewellery surface polishing performance.This is specially
The silver alloy of profit application protection has loose solidification temperature range, can reach 830-900 degree.It is up to 70 degree in freezing range
Under conditions of cast, the formation of shrinkage cavity in casting is not only can be avoided, it is also possible that the tissue of casting is with equiax crystal
Form occur, avoid the generation of dendrite.In addition, cast(ing) surface is bright and clean, without castings such as apparent sand hole, cinder hole, stomatas
Defect, connects between the rib of sieve intact, does 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, 85-90HV 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
Have 958 silver alloy of yellow and its technique of high rigidity and abrasion resistance properties.By weight percentage, the group of alloy becomes
Be:0.4wt.%,Sr:0.6wt.%,Ta:0.2wt.%,W:0.3wt.%,Zn:1.4wt.%,Ge:0.5wt.%,Ag:95.0wt.%,
Surplus is copper.Above-mentioned 958 silver alloy of yellow and its technique for having high rigidity and abrasion resistance properties, 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 520 degree per intermediate anneal temperature after rolling twice, keeps the temperature 0.8 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 350 degree, and the time is 1 hour；Finally during jewellery colour, need to carry out low-level oxidation operation,
240 degree of temperature under atmospheric environment, time are 30 minutes.
The alloy not only can be avoided the formation of shrinkage cavity in casting, it is also possible that the tissue of casting is with the shape of equiax crystal
Formula occurs, and avoids the generation of dendrite.In addition, cast(ing) surface is bright and clean, without casting flaws such as apparent sand hole, cinder hole, stomatas,
It connects intact between the rib of sieve, does not generate any contraction crack.The material will subsequently carry out low-level oxidation behaviour in jewellery molding
Make so that the oxide layer of one layer of yellow of Surface Creation.The silver jewellery prepared using the alloy is after using 4 years still without apparent
Colour fading and surface polishing scratch generate, and common silver jewellery is using will be because of contact hydrogen sulfide or sulphion after 2 months
And generate blackening.
Embodiment 2
Have 958 silver alloy of yellow and its technique of high rigidity and abrasion resistance properties.By weight percentage, the group of alloy becomes
Be:0.5wt.%,Sr:0.8wt.%,Ta:0.4wt.%,W:0.5wt.%,Zn:1.6wt.%,Ge:0.8wt.%,Ag:96.0wt.%,
Surplus is copper.Above-mentioned 958 silver alloy of yellow and its technique for having high rigidity and abrasion resistance properties, 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 520 degree per intermediate anneal temperature after rolling twice, keeps the temperature 0.8 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 350 degree, and the time is 1 hour；Finally during jewellery colour, need to carry out low-level oxidation operation,
240 degree of temperature under atmospheric environment, time are 30 minutes.
The alloy not only can be avoided the formation of shrinkage cavity in casting, it is also possible that the tissue of casting is with the shape of equiax crystal
Formula occurs, and avoids the generation of dendrite.In addition, cast(ing) surface is bright and clean, without casting flaws such as apparent sand hole, cinder hole, stomatas,
It connects intact between the rib of sieve, does not generate any contraction crack.The material will subsequently carry out low-level oxidation behaviour in jewellery molding
Make so that the oxide layer of one layer of yellow of Surface Creation.The silver jewellery prepared using the alloy is after using 4 years still without apparent
Colour fading and surface polishing scratch generate, and common silver jewellery is using will be because of contact hydrogen sulfide or sulphion after 2 months
And generate blackening.
Embodiment 3
Have 958 silver alloy of yellow and its technique of high rigidity and abrasion resistance properties.By weight percentage, the group of alloy becomes
Be:0.4wt.%,Sr:0.7wt.%,Ta:0.3wt.%,W:0.4wt.%,Zn:1.5wt.%,Ge:0.6wt.%,Ag:95.0wt.%,
Surplus is copper.Above-mentioned 958 silver alloy of yellow and its technique for having high rigidity and abrasion resistance properties, 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 520 degree per intermediate anneal temperature after rolling twice, keeps the temperature 0.8 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 350 degree, and the time is 1 hour；Finally during jewellery colour, need to carry out low-level oxidation operation,
240 degree of temperature under atmospheric environment, time are 30 minutes.
The alloy not only can be avoided the formation of shrinkage cavity in casting, it is also possible that the tissue of casting is with the shape of equiax crystal
Formula occurs, and avoids the generation of dendrite.In addition, cast(ing) surface is bright and clean, without casting flaws such as apparent sand hole, cinder hole, stomatas,
It connects intact between the rib of sieve, does not generate any contraction crack.The material will subsequently carry out low-level oxidation behaviour in jewellery molding
Make so that the oxide layer of one layer of yellow of Surface Creation.The silver jewellery prepared using the alloy is after using 4 years still without apparent
Colour fading and surface polishing scratch generate, and common silver jewellery is using will be because of contact hydrogen sulfide or sulphion after 2 months
And generate blackening.
Claims (3)
1. having 958 silver alloy of yellow and its technique of high rigidity and abrasion resistance properties；By weight percentage, the composition of alloy
For Be:0.4-0.5wt.%,Sr:0.6-0.8wt.%,Ta:0.2-0.4wt.%,W:0.3-0.5wt.%,Zn:1.4-1.6wt.%,
Ge:0.5-0.8wt.%,Ag:95.0.0-96.0wt.%, surplus is copper.
2. 958 silver alloy of yellow and its technique, feature that have high rigidity and abrasion resistance properties according to claim 1 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. 958 silver alloy of yellow and its technique, feature that have high rigidity and abrasion resistance properties according to claim 1 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 520 degree after system, keeps the temperature 0.8 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 350 degree, when
Between be 1 hour；Finally during jewellery colour, need to carry out low-level oxidation operation, 240 degree of temperature under atmospheric environment, the time
It is 30 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810883065.3A CN108588469A (en) | 2018-08-06 | 2018-08-06 | Have 958 silver alloy of yellow and its technique of high rigidity and abrasion resistance properties |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810883065.3A CN108588469A (en) | 2018-08-06 | 2018-08-06 | Have 958 silver alloy of yellow and its technique of high rigidity and abrasion resistance properties |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108588469A true CN108588469A (en) | 2018-09-28 |
Family
ID=63623051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810883065.3A Withdrawn CN108588469A (en) | 2018-08-06 | 2018-08-06 | Have 958 silver alloy of yellow and its technique of high rigidity and abrasion resistance properties |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108588469A (en) |
-
2018
- 2018-08-06 CN CN201810883065.3A patent/CN108588469A/en not_active Withdrawn
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108531801A (en) | A kind of findings have the 10K dark funds and its technique of excellent abrasion resistance properties | |
| CN108517432A (en) | A kind of low temperature resistant brittle failure of jewellery and discoloration 14K Zijins and its processing technology | |
| CN108467964A (en) | With the yellow as gold and corrosion resistant jewellery platinum alloy | |
| CN108588469A (en) | Have 958 silver alloy of yellow and its technique of high rigidity and abrasion resistance properties | |
| CN108796289A (en) | Findings have blue gloss and 958 silver alloy and its technique of fade resistant | |
| CN108796288A (en) | A kind of red silver jewellery 958 alloys and its processing technology of die casting | |
| CN108588468A (en) | One kind having yellow appearance and has 925 silver alloy of high rigidity and its technique | |
| CN108866374A (en) | The golden alloy of the corrosion-resistant 18K ash of grey and its technique with stamping resistance performance | |
| CN108913936A (en) | Rub resistance corrosion-resistant jewellery material 10K ash billon and its technique | |
| CN108531763A (en) | With extremely low work hardening rate and the grey gold alloys of the 14K of resistance to brittle failure and its technique | |
| CN108796278A (en) | A kind of jewellery large deformation stamping resistance brownish red 18K billons and its technique | |
| CN108796293A (en) | The resistance to wear-resistant low cost of brittle failure has roseate rose copper alloy | |
| CN108531765A (en) | A kind of corrosion-resistant resistance to brittle failure high intensity 10K billons of brown and its technique | |
| 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 | |
| CN108866377A (en) | Hydrogen sulfide corrosion-resistant, which changes colour, has the silver alloy and its processing technology of red appearance | |
| CN108728681A (en) | A kind of corrosion-resistant rub resistance jewellery material rosiness palldium alloy | |
| CN108660333A (en) | The corrosion-resistant not argentiferous 14K rose golds of one kind and its processing technology | |
| CN108796300A (en) | One kind having high elastic modulus and corrosion resistant 18K rose golds imitate billon | |
| CN108913935A (en) | A kind of jewellery fade resistant high tenacity 18K Zijin and its processing technology | |
| CN108950287A (en) | With excellent punching performance and high elastic modulus purple seedling silver alloy and its technique | |
| CN108842088A (en) | The anticorrosive yellow low silver content alloy of seedling silver jewellery high rigidity and its technique | |
| CN108842087A (en) | One kind is with violet appearance and 925 silver alloy of resistance to brittle failure and its technique | |
| CN108913941A (en) | Statue imitative gold-tin alloy and its technique under a kind of tinbase stamping resistance coastal environments | |
| CN108842085A (en) | One kind is with red appearance and 925 silver alloy of hydrogen sulfide corrosion-resistant 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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180928 |