CN108517432A - A kind of low temperature resistant brittle failure of jewellery and discoloration 14K Zijins and its processing technology - Google Patents
A kind of low temperature resistant brittle failure of jewellery and discoloration 14K Zijins and its processing technology Download PDFInfo
- Publication number
- CN108517432A CN108517432A CN201810808264.8A CN201810808264A CN108517432A CN 108517432 A CN108517432 A CN 108517432A CN 201810808264 A CN201810808264 A CN 201810808264A CN 108517432 A CN108517432 A CN 108517432A
- Authority
- CN
- China
- Prior art keywords
- jewellery
- zijins
- discoloration
- temperature
- degree
- 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- Withdrawn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
- C22C5/02—Alloys based on gold
-
- 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 a kind of low temperature resistant brittle failure of jewellery and discoloration 14K Zijins and its processing technologys.According to weight percent, the ingredient of the alloy is:Li:0.6‑0.8wt.%,Mo:1.0‑1.2wt.%,W:0.6‑0.8wt.%,Sb:1.0‑1.5wt.%,In:10.0‑15.0wt.%,Al:10.0‑14.0wt.%,Au:58.0 59.0wt.%, surplus are silver.The patent solves the current insufficient present situation of K Zijins performance, and effectively breaches the development bottleneck in field of jewelry.It is contemplated that the implementation and industrialization of the material can obtain plentiful and substantial economic gain and social benefit.
Description
Technical field
The present invention relates to technical field of alloy, specifically, being related to a kind of billon.
Background technology
Gold is a kind of precious metal, is one of the metal that the mankind have found and develop and use earliest.It is make jewellery and
The important source material of coin, and be the important stockpile of country, it is not considered only as fine and rich symbol, but also with it
Distinctive value, the life brought benefit to the mankind.In order to overcome proof gold price is high, hardness is low, color is single, easy to wear, decorative pattern not
Exquisite disadvantage, is usually added some other metallic elements to increase the hardness of jewellery gold in proof gold, convert its tone with
Its fusing point is reduced, different, the visibly different billon of gold content of quality height is occurred as soon as in this way, referred to as karat gold and forms a system
Row karat gold ornaments.
The gold and jewelry consumption in China is developed so far from early 1980s, experienced several developing stage:Hair
Exhibition initial stage to buy based on proof gold ornaments, focuses on value preserving effect.Since the nineties, karat gold and karat gold inlay ruby, indigo plant
Jewel, diamond, the jewellery based on emerald start largely to appear on the market, and growth momentum is swift and violent, but consumption idea still focuses on jewellery
Value;In recent years, the consumption idea of people was changed, and is pursued personalization by focusing on being worth turning to, is particular about the money of jewellery
Formula, technique.Start numerous karat gold ornaments occurred in the market, has been obtained for effectively promoting and market is widely recognized as.
Proof gold jewellery only have a kind of color, i.e. golden true qualities.Karat gold various colors, and the appearance of karat gold is brought in people
The one multicoloured world.When proof gold is dexterously combined with other metals, different colors just will present.Karat gold jewellery use
New material it is advantageous compared with proof gold on color and material.Color is showed by the brightness of moulding, deep or light and color collocation
's.The material color that karat gold jewellery are selected is abundant, and different visual effects is generated using different collocation.The colour match of coordination
Can it is pleasant, peaceful with it is serene.Though the ductility of true yellow gold is good, too soft, to moulding or inlay etc. it is unsuitable, using K
Golden material then has preferable castability, is conducive to moulding processing.
Karat gold jewellery are wide in variety, and wearing site is different, especially face, and as the object that jewellery are directly set off, selection is suitable
Jewellery, decorations U.S. effect that outstanding advantages can be played, covered the shortage.Makings mastery, the physilogical characteristics of different people are variant, separately
The age of outer wearer, occupation, body, the colour of skin, makings are different, and selected jewellery style is different.The design of karat gold jewellery personalization
Meet consumer demand.Karat gold jewellery are people-oriented, meet the fat or thin equal not homomorphs of height, the different consumer's need accomplished
It asks, accomplishes that same money is multimodal or a changeable, same brand, a variety of styles.
The color of karat gold also has purpuric type in addition to above-mentioned yellow, white and red.Traditionally, when aluminium is added to
The golden aluminium alloy formed when in gold just has purpuric color and luster.But regrettably, the addition of aluminium must reach
50wt.% or more.But so high aluminium content, a large amount of generations of intermetallic compound certainly will be caused.That is, traditional work
The purple K gold that skill and formula are prepared is too crisp.In process engineering, it is extremely easy a large amount of lifes because of intermetallic compound
At and form brittle crack or fracture.It is not only not easy to be processed, and commercial is limited, and the market sales volume is also little.This
Outside, the jewellery of material preparation purple after using 1 year can fade.Further, since the influence of timeliness, the material it is strong
Degree, hardness can be also continuously increased in use, and material is caused to become fragile and brittle failure occurs.Not only affect the sight of such material
Sense, also seriously reduces the market sales volume and the marketing of such material.
Although the absolute number of China's jewelry and decoration industry in quantity and yield is larger, scope of the enterprise is small, core
Heart competitiveness is not strong.In evolution, jewelry enterprise is not innovated during productive accumulation usually as processor,
Form out the characteristic of oneself.For a long time, most domestic jewelry enterprise all rests on the OEM forms of order processing, makes
With the production line of oneself, the product of oneself is produced, finally but sticks other people brand.It is first even some larger enterprises
Decorations and the critical material of trim-alloy production but almost rely on import, are almost one in terms of Novel decoration material development
Piece blank.Therefore, research and development and industrialization high-performance have the karat gold material and its technology of preparing of independent intellectual property right, for enhancing
The competitiveness of China's jewelry and decoration industry will have the function of very positive.
Invention content
The purpose of the present invention is to overcome the deficiency in the prior art, provides a kind of low temperature resistant brittle failure of jewellery and discoloration 14K is purple
Gold and its processing technology.
To achieve the goals above, the present invention adopts the following technical scheme that：
A kind of low temperature resistant brittle failure of jewellery and discoloration 14K Zijins and its processing technology.By weight percentage, the group of alloy becomes
Li:0.6-0.8wt.%,Mo:1.0-1.2wt.%,W:0.6-0.8wt.%,Sb:1.0-1.5wt.%,In:10.0-15.0wt.%,
Al:10.0-14.0wt.%,Au:58.0-59.0wt.%, surplus are silver.
The preparation method of a kind of low temperature resistant brittle failure of above-mentioned jewellery and discoloration 14K Zijins and its processing technology, including it is as follows
Step：As above the raw material matched is added in the electric induction furnace of argon gas protection, and uses graphite crucible;It is used after metal molten
The argon gas of low discharge is protected, and big air-flow is avoided to make the serious scaling loss of alloying element;10 minutes are kept the temperature at 1200 degree when melting, by height
Frequency induction furnace electromagnetic agitation is uniform;1 minute being kept the temperature at 1200 degree after stirring evenly and being cast come out of the stove;Billon casting uses diameter
The punching block of 50-100mm, and cooled down by the way of water cooling.The ingot casting of gained is rolled at room temperature, every time rolls lower amount
For 30-40%;It is 380 degree per intermediate anneal temperature after rolling twice, keeps the temperature 0.5 hour;Material, which is finally rolled into thickness, is
The golden plate of 10-20mm;In jewellery forming process, needs to carry out intermediate annealing process, eliminate the stress in process;Its
In, homogenization temperature is 350 degree, and the time is 1-2 hours.
Compared with prior art, the present invention has the advantages that：
（1）Traditionally, the golden aluminium alloy formed when aluminium is added in gold just has purpuric color and luster.But it is unluckily
It is that the addition of aluminium must reach 50wt.% or more.But so high aluminium content, a large amount of of intermetallic compound certainly will be caused
It generates.That is, the purple K gold that traditional handicraft and formula are prepared is too crisp.In process engineering, extremely be easy because
Intermetallic compound it is a large amount of generation and form brittle crack or fracture.It is not only not easy to be processed, and commercial is limited,
The market sales volume is also little.In addition, the jewellery of material preparation purple after using 1 year can fade.Not only affect
The perception of such material also seriously reduces the market sales volume and the marketing of such material.This patent passes through advanced material
Material technology has carried out K Zijins multi-faceted innovation and raising, and the aluminium content of gained alloy can be reduced to 15wt.% or less.
Due to reducing the content of intermetallic compound, which thus has extremely excellent toughness at room temperature.That is, this
Patent solves field of jewelry K Zijin materials and is difficult to the color taken into account, what corrosion resistance and processing performance cannot obtain simultaneously
Present situation.
（2）For the alloy of present patent application when carrying out alloying component and performance optimizes, the screening of alloying component is first
From the point of view of Electrochemical Corrosion Mechanism, selection, which is added to the alloying element in alloy, to form passivating film on surface, to
It plays a protective role to ambient enviroment corrosion.This film is in different media, since unpolarizing is as a result, to show
Go out different corrosion resistances, the corrosion resistance of strong acid, strong basicity sweat is also relatively stablized.The jewellery of the material preparation are normal
Human body wear in lower 10 years of environment that metachromatism does not occur.
（3）The color that the material has traditional purple K gold charming, but it is crisp to avoid traditional Zijin performance, it is frangible,
It should not process and the limited present situation of business application.Since the material has carried out the optimization of materialogy bottom, thus with relatively low
Liquidus temperature, good machinery and casting character and good bleaching effect.It is a kind of more satisfactory purple K gold
Upgrades.As alloy content is in the variation of optimization range, the mechanical performance of the alloy can be adjusted significantly.Together
When, the alloy is since liquidus curve is relatively low, 850 degree or so, thus is suitable for casting.Since crystal grain is refined, and solve
It is big to solve hot cracking tendency when casting, casting cavity and the low equal technical barriers of loose apparent product yield rate, thus have wide
Market prospects.
（4）The intermetallic compound that purple in traditional purple karat gold is formed from Al and Au, lavender are quite charming.
But due to the generation of the generation of ordering and stress, which is extremely easy brittle failure at room temperature.Just as dried firewood one when serious
Sample is easy to break, does not show the mechanical property of the excellent precious metal alloys of toughness plasticity.This brittle fracture and the production of crackle
Life not only will produce in jewellery manufacturing process, can also occur suddenly during the use of jewellery.Frequent manufactures in jewellery
The crackle of many places can be found after the casting of workshop, and incision position does not have any plastic deformation, and typical brittle fracture is presented, production
Producer is often perplexed by this problem.This patent overcome in itself due to structural stress caused by structure ordering and
Brittleness.Due to the not generation of ordering or the generation of transformation stress, thus the alloy great plasticity at room temperature, thus add
Work efficiency rate and rejection rate substantially reduce.The alloy of present patent application not will produce brittle failure after prolonged use, 10-20's
It is not in ordering the phenomenon that either material is hardened or is broken caused by the generation of cenotype during use.
Specific implementation mode
Embodiment 1
A kind of low temperature resistant brittle failure of jewellery and discoloration 14K Zijins and its processing technology.By weight percentage, the group of alloy becomes
Li:0.6wt.%,Mo:1.0wt.%,W:0.6wt.%,Sb:1.0wt.%,In:10.0wt.%,Al:10.0wt.%,Au:
58.0wt.%, surplus are silver.A kind of low temperature resistant brittle failure of above-mentioned jewellery and discoloration 14K Zijins and its processing technology, including it is as follows
Step：As above the raw material matched is added in the electric induction furnace of argon gas protection, and uses graphite crucible;It is used after metal molten
The argon gas of low discharge is protected, and big air-flow is avoided to make the serious scaling loss of alloying element;10 minutes are kept the temperature at 1200 degree when melting, by height
Frequency induction furnace electromagnetic agitation is uniform;1 minute being kept the temperature at 1200 degree after stirring evenly and being cast come out of the stove;Billon casting uses diameter
The punching block of 50-100mm, and cooled down by the way of water cooling.The ingot casting of gained is rolled at room temperature, every time rolls lower amount
For 30-40%;It is 380 degree per intermediate anneal temperature after rolling twice, keeps the temperature 0.5 hour;Material, which is finally rolled into thickness, is
The golden plate of 10-20mm;In jewellery forming process, needs to carry out intermediate annealing process, eliminate the stress in process;Its
In, homogenization temperature is 350 degree, and the time is 1-2 hours.
Patent solves field of jewelry K Zijin materials and is difficult to the color taken into account, and corrosion resistance and processing performance cannot be same
When obtained present situation.First from the point of view of Electrochemical Corrosion Mechanism, selection is added in alloy for the screening of alloying component
Alloying element can form passivating film on surface, to play a protective role to ambient enviroment corrosion.This film is in different media
In, since unpolarizing is as a result, to show different corrosion resistances, to strong acid, strong basicity sweat it is anticorrosive
Property also relatively stablize.The jewellery of the material preparation are in the case where normal human body wears environment that metachromatism does not occur in 10 years.The conjunction
Gold overcomes due to structural stress caused by structure ordering and brittleness.Due to the not generation of ordering or phase allergic effect
The generation of power, thus the alloy great plasticity at room temperature, thus processing efficiency and rejection rate substantially reduce.10-20's
It is not in ordering the phenomenon that either material is hardened or is broken caused by the generation of cenotype during use.The alloy by
It is relatively low in liquidus curve, 850 degree or so, thus be suitable for casting.Since crystal grain is refined, and solve solution casting when
Hot cracking tendency is big, and casting cavity is low with loose apparent product yield rate to wait technical barriers, thus has a vast market foreground.
Embodiment 2
A kind of low temperature resistant brittle failure of jewellery and discoloration 14K Zijins and its processing technology.By weight percentage, the group of alloy becomes
Li:0.8wt.%,Mo:1.2wt.%,W:0.8wt.%,Sb:1.5wt.%,In:15.0wt.%,Al:14.0wt.%,Au:
58.0wt.%, surplus are silver.A kind of low temperature resistant brittle failure of above-mentioned jewellery and discoloration 14K Zijins and its processing technology, including it is as follows
Step：As above the raw material matched is added in the electric induction furnace of argon gas protection, and uses graphite crucible;It is used after metal molten
The argon gas of low discharge is protected, and big air-flow is avoided to make the serious scaling loss of alloying element;10 minutes are kept the temperature at 1200 degree when melting, by height
Frequency induction furnace electromagnetic agitation is uniform;1 minute being kept the temperature at 1200 degree after stirring evenly and being cast come out of the stove;Billon casting uses diameter
The punching block of 50-100mm, and cooled down by the way of water cooling.The ingot casting of gained is rolled at room temperature, every time rolls lower amount
For 30-40%;It is 380 degree per intermediate anneal temperature after rolling twice, keeps the temperature 0.5 hour;Material, which is finally rolled into thickness, is
The golden plate of 10-20mm;In jewellery forming process, needs to carry out intermediate annealing process, eliminate the stress in process;Its
In, homogenization temperature is 350 degree, and the time is 1-2 hours.
Patent solves field of jewelry K Zijin materials and is difficult to the color taken into account, and corrosion resistance and processing performance cannot be same
When obtained present situation.First from the point of view of Electrochemical Corrosion Mechanism, selection is added in alloy for the screening of alloying component
Alloying element can form passivating film on surface, to play a protective role to ambient enviroment corrosion.This film is in different media
In, since unpolarizing is as a result, to show different corrosion resistances, to strong acid, strong basicity sweat it is anticorrosive
Property also relatively stablize.The jewellery of the material preparation are in the case where normal human body wears environment that metachromatism does not occur in 10 years.The conjunction
Gold overcomes due to structural stress caused by structure ordering and brittleness.Due to the not generation of ordering or phase allergic effect
The generation of power, thus the alloy great plasticity at room temperature, thus processing efficiency and rejection rate substantially reduce.10-20's
It is not in ordering the phenomenon that either material is hardened or is broken caused by the generation of cenotype during use.The alloy by
It is relatively low in liquidus curve, 850 degree or so, thus be suitable for casting.Since crystal grain is refined, and solve solution casting when
Hot cracking tendency is big, and casting cavity is low with loose apparent product yield rate to wait technical barriers, thus has a vast market foreground.
Embodiment 3
A kind of low temperature resistant brittle failure of jewellery and discoloration 14K Zijins and its processing technology.By weight percentage, the group of alloy becomes
Li:0.7wt.%,Mo:1.1wt.%,W:0.7wt.%,Sb:1.2wt.%,In:10.5wt.%,Al:12.0wt.%,Au:
58.0wt.%, surplus are silver.A kind of low temperature resistant brittle failure of above-mentioned jewellery and discoloration 14K Zijins and its processing technology, including it is as follows
Step：As above the raw material matched is added in the electric induction furnace of argon gas protection, and uses graphite crucible;It is used after metal molten
The argon gas of low discharge is protected, and big air-flow is avoided to make the serious scaling loss of alloying element;10 minutes are kept the temperature at 1200 degree when melting, by height
Frequency induction furnace electromagnetic agitation is uniform;1 minute being kept the temperature at 1200 degree after stirring evenly and being cast come out of the stove;Billon casting uses diameter
The punching block of 50-100mm, and cooled down by the way of water cooling.The ingot casting of gained is rolled at room temperature, every time rolls lower amount
For 30-40%;It is 380 degree per intermediate anneal temperature after rolling twice, keeps the temperature 0.5 hour;Material, which is finally rolled into thickness, is
The golden plate of 10-20mm;In jewellery forming process, needs to carry out intermediate annealing process, eliminate the stress in process;Its
In, homogenization temperature is 350 degree, and the time is 1-2 hours.
Patent solves field of jewelry K Zijin materials and is difficult to the color taken into account, and corrosion resistance and processing performance cannot be same
When obtained present situation.First from the point of view of Electrochemical Corrosion Mechanism, selection is added in alloy for the screening of alloying component
Alloying element can form passivating film on surface, to play a protective role to ambient enviroment corrosion.This film is in different media
In, since unpolarizing is as a result, to show different corrosion resistances, to strong acid, strong basicity sweat it is anticorrosive
Property also relatively stablize.The jewellery of the material preparation are in the case where normal human body wears environment that metachromatism does not occur in 10 years.The conjunction
Gold overcomes due to structural stress caused by structure ordering and brittleness.Due to the not generation of ordering or phase allergic effect
The generation of power, thus the alloy great plasticity at room temperature, thus processing efficiency and rejection rate substantially reduce.10-20's
It is not in ordering the phenomenon that either material is hardened or is broken caused by the generation of cenotype during use.The alloy by
It is relatively low in liquidus curve, 850 degree or so, thus be suitable for casting.Since crystal grain is refined, and solve solution casting when
Hot cracking tendency is big, and casting cavity is low with loose apparent product yield rate to wait technical barriers, thus has a vast market foreground.
Claims (3)
1. a kind of low temperature resistant brittle failure of jewellery and discoloration 14K Zijins and its processing technology；According to weight percent, the alloy at
It is divided into:Li:0.6-0.8wt.%,Mo:1.0-1.2wt.%,W:0.6-0.8wt.%,Sb:1.0-1.5wt.%,In:10.0-
15.0wt.%,Al:10.0-14.0wt.%,Au:58.0-59.0wt.%, surplus are silver.
2. the low temperature resistant brittle failure of a kind of jewellery described in claim 1 and discoloration 14K Zijins and its processing technology, it is characterised in that packet
Include following smelting step：As above the raw material matched is added in the electric induction furnace of argon gas protection, and uses graphite crucible;Metal
It is protected using the argon gas of low discharge after fusing, big air-flow is avoided to make the serious scaling loss of alloying element;It is kept the temperature at 1200 degree when melting
It is 10 minutes, 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;Billon
Casting uses the punching block of diameter 50-100mm, and is cooled down by the way of water cooling.
3. according to a kind of low temperature resistant brittle failure of jewellery described in claim 1 and discoloration 14K Zijins and its processing technology, it is characterised in that
Including using step as follows：The ingot casting of gained is rolled at room temperature, it is 30-40% that every time, which rolls lower amount,;It is every to roll twice
Intermediate anneal temperature is 380 degree afterwards, keeps the temperature 0.5 hour;Material is finally rolled into the golden plate that thickness is 10-20mm;In jewellery
In forming process, needs to carry out intermediate annealing process, eliminate the stress in process;Wherein, homogenization temperature is 350 degree,
Time is 1-2 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810808264.8A CN108517432A (en) | 2018-07-22 | 2018-07-22 | A kind of low temperature resistant brittle failure of jewellery and discoloration 14K Zijins and its processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810808264.8A CN108517432A (en) | 2018-07-22 | 2018-07-22 | A kind of low temperature resistant brittle failure of jewellery and discoloration 14K Zijins and its processing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108517432A true CN108517432A (en) | 2018-09-11 |
Family
ID=63428675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810808264.8A Withdrawn CN108517432A (en) | 2018-07-22 | 2018-07-22 | A kind of low temperature resistant brittle failure of jewellery and discoloration 14K Zijins and its processing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108517432A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055437A (en) * | 2019-05-16 | 2019-07-26 | 杭州辰卓科技有限公司 | One kind having the corrosion-resistant billon of resistance to brittle failure of this spot effect 14K and its technique |
| CN110629062A (en) * | 2019-05-16 | 2019-12-31 | 杭州辰卓科技有限公司 | 20K corrosion-resistant brittle fracture-resistant gold alloy with spotty effect and process thereof |
-
2018
- 2018-07-22 CN CN201810808264.8A patent/CN108517432A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055437A (en) * | 2019-05-16 | 2019-07-26 | 杭州辰卓科技有限公司 | One kind having the corrosion-resistant billon of resistance to brittle failure of this spot effect 14K and its technique |
| CN110629062A (en) * | 2019-05-16 | 2019-12-31 | 杭州辰卓科技有限公司 | 20K corrosion-resistant brittle fracture-resistant gold alloy with spotty effect and process thereof |
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 | |
| CN108425029A (en) | A kind of not the argentiferous 18K of resistance to brittle failure rose golds and its processing technology | |
| CN108517432A (en) | A kind of low temperature resistant brittle failure of jewellery and discoloration 14K Zijins and its processing technology | |
| CN108504919A (en) | The jewellery corrosion-resistant 8K of the resistance to brittle failure platinum alloy of low gold content | |
| CN108913935A (en) | A kind of jewellery fade resistant high tenacity 18K Zijin and its processing technology | |
| CN108624777A (en) | One kind having saturation rosiness and corrosion resistant cheap rose copper alloy | |
| CN108796270A (en) | A kind of 18K gold billons with excellent resilience performance | |
| CN108796343A (en) | A kind of jewellery wear-resistant and high tenacity 10K Zijins and its processing technology | |
| CN108796300A (en) | One kind having high elastic modulus and corrosion resistant 18K rose golds imitate billon | |
| CN108531763A (en) | With extremely low work hardening rate and the grey gold alloys of the 14K of resistance to brittle failure 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 | |
| CN108796293A (en) | The resistance to wear-resistant low cost of brittle failure has roseate rose copper alloy | |
| CN108728685A (en) | Jewellery rub resistance high intensity has rose gold color and luster 14K rose silver alloy | |
| CN108728681A (en) | A kind of corrosion-resistant rub resistance jewellery material rosiness palldium alloy | |
| CN108866377A (en) | Hydrogen sulfide corrosion-resistant, which changes colour, has the silver alloy and its processing technology of red appearance | |
| CN108660333A (en) | The corrosion-resistant not argentiferous 14K rose golds of one kind and its processing technology | |
| CN108796299A (en) | Billon and its processing technology are imitated with resistance to brittle failure and 18K rose gold colors | |
| CN108913940A (en) | A kind of colour-fast toughness of jewellery has 18K rose gold color and imitates billon | |
| CN108823461A (en) | A kind of findings have the 14K dark fund and its technique of excellent resistance to brittle failure performance | |
| CN108796341A (en) | A kind of low temperature resistant brittle failure and the resistance to jewellery to fade 8K platinum alloys | |
| CN108913934A (en) | A kind of findings have the 18K dark fund and its technique of excellent fade resistance energy | |
| CN108950355A (en) | Rub resistance the is wear-resistant low gold content 8K platinum alloy of jewellery | |
| CN108796290A (en) | Have the jewellery silver alloy and its technique of green perception and resistance to vulcanization and oxidation | |
| CN108677055A (en) | A kind of jewellery rose palldium alloy with excellent toughness and aging stability |
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: 20180911 |