CN107164651A - A kind of jewellery pink colour silver alloy and preparation method thereof - Google Patents
A kind of jewellery pink colour silver alloy and preparation method thereof Download PDFInfo
- Publication number
- CN107164651A CN107164651A CN201710478216.2A CN201710478216A CN107164651A CN 107164651 A CN107164651 A CN 107164651A CN 201710478216 A CN201710478216 A CN 201710478216A CN 107164651 A CN107164651 A CN 107164651A
- Authority
- CN
- China
- Prior art keywords
- alloy
- silver alloy
- jewellery
- pink colour
- copper
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
-
- 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
- C22C1/03—Making non-ferrous alloys by melting using master alloys
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Adornments (AREA)
- Cosmetics (AREA)
- Display Devices Of Pinball Game Machines (AREA)
Abstract
The invention discloses a kind of jewellery pink colour silver alloy, the composition of following weight/mass percentage composition is included：Silver 33.10~42.50%, copper 55.00~61.50%.Silver alloy of the present invention, its color is in bright pink, hardness of cast form, fusing point are moderate, with good casting forming function and punch forming performance, meet jewellery shaping and inlay requirement, there is good corrosion resistance, anti-oxidant discoloration, with low cost, the actual application value height of alloy in 37 DEG C of synthetic perspirations.Meanwhile, invention additionally discloses a kind of preparation method of jewellery pink colour silver alloy.
Description
Technical field
The present invention relates to a kind of silver alloy and preparation method thereof, especially a kind of jewellery pink colour silver alloy and its preparation side
Method.
Background technology
Silver belongs to one kind of noble metal, but its price is far below other noble metals such as gold, platinum, palladium, thus in jewellery
Sector application is extremely extensive, is largely considered as fashion decorations material.Silver have good processing and fabricating performance and
The chemical property of relative good, 94% is reached to the reflectivity of visible ray, is reflectivity highest material in all metallic elements.
Silver jewellery material in the market is based on 925 silver medals and 990 silver medals, because silver content is very high, and alloy is all white without exception
, limit it and decorate performance.
To make silver alloy jewellery that there is more rich decorative appearance, typically pass through Integral alloy, surface coating, surface
Color is presented in the approach such as modified.Integral alloy is the alloying element of the addition energy coloring in silver alloy, and such as gold, copper lead to
The ratio of allotment color-causing element and other elements content is crossed to obtain required color.Surface coating is by plating, chemical plating
One layer of coloured film layer, such as black coating rhodium, rose gold etc. are deposited on jewellery surface etc. mode.Surface be modified be by chemistry,
The techniques such as electrochemistry form colored film layer on jewellery surface, such as produce black on surface by vulcanization, high-temperature oxydation.Due to rear
Two kinds of face technique is all to belong to process of surface treatment, and jewellery make base using that may lose color after a period of time because of abrasion
Bottom produces obvious contrast with the non-worn area of film layer, has a strong impact on decoration performance.
Japan Patent JP2005217314A discloses a kind of similar pink colour silver alloy, and it includes silver, copper, gold, palladium, germanium
Five kinds of components, these alloys can obtain pink to varying degrees, but be due to containing considerable amount of expensive gold,
The alloying elements such as palladium, germanium, their cost far beyond the receptible scope of silver alloy jewellery institute, is not acceptable to the market, not had
Actual application value.French Patent (FRP) FR0003707A discloses a kind of pink colour silver alloy, its component include silver, copper, palladium,
Indium, gold, wherein palladium content are up to 3-20%, and also difficulty is acceptable to the market, and bring larger difficulty to processing and manufacturing.
In existing research, palladium is added in yellow gold, certain blanching effect, copper, silver, palladium three can be produced to copper
Collocation, it is easy to prepare pink silver alloy.But, the fusing point of palladium is high, after addition palladium amount is more than 2%, can substantially increase
Difficulty is cast, and the sky high cost of palladium makes it unsuitable for the alloying element as pink colour silver alloy, in addition, in existing research also
The report of pink silver alloy is not prepared only with copper and silver collocation.
The content of the invention
Based on this, provided it is an object of the invention to overcome in place of above-mentioned the deficiencies in the prior art a kind of cost performance it is high,
Color is in bright pink jewellery silver alloy.Jewellery of the present invention are with pink colour silver alloy, and silver and copper cooperate, and make face
Color is not only in bright pink, also with preferable processing and fabricating performance, anti-oxidant discoloration, and the cost of alloy
Low, with good cost performance, actual application value is high, wherein：
Silver is one of basic composition of alloy, because silver has very strong reflex to visible ray, is favorably improved conjunction
The lightness of gold, but too high silver content promotes alloy color to bleach, and increases coloring difficulty, and too low silver content is then unfavorable for
Lightness, processing and fabricating performance and the anti-oxidant discoloration of alloy.
Copper is the color-causing element of pink silver alloy.Aubergine is presented in copper in itself, and during with white metal chemical combination, aubergine is obtained
To bleach, bleaching degree depends on the species and content of other white metal elements.Alloy color is partially purplish red when copper content is too high,
Lightness is reduced, and the chemical stability of alloy is bad, and is unfavorable for castability；Alloy color is light when copper content is too low, decoration
Performance, the hardness of alloy can be also greatly affected.
Testing inspection is carried out by the yellow gold to different proportion, found when the ratio of copper, silver-colored weight/mass percentage composition is big
When 2.0, the color of alloy is partially red, has deviateed pink regions；And when the ratio of copper, silver-colored weight/mass percentage composition is less than 1.2, close
The color of gold is partially white, only very light pink colour.And when copper, silver-colored weight/mass percentage composition ratio between 1.3~1.86 when, alloy table
Reveal preferable pink colour.Therefore, to achieve the above object, the technical solution used in the present invention is：A kind of jewellery pink colour silver
Alloy, includes the composition of following weight/mass percentage composition：Silver 33.10~42.50%, copper 55.00~61.50%.
Preferably, the silver alloy also includes zinc, and the weight/mass percentage composition of the zinc is 1.50~3.00%.Zinc is closed to silver
Gold has auxiliary bleaching effect, can improve the anti-oxidant discoloration of alloy, it is possible to decrease the fusing point of alloy, and having preferably improves casting
The effect of performance.But in silver alloy of the present invention, inventor attempts to find by a large amount of, when Zn content is less than 1.5%, alloy
Antioxygenic property and casting character it is undesirable, casting and be heat-treated when surface easily black, and when Zn content be higher than 3.0%
When, the hardness of alloy is relatively low, and easily generation zinc oxide is mingled with during melting and casting.In 1.50~3.00% this scope
When, zinc can reach Optimized Matching to the effect in terms of the color of alloy, antioxygenic property, casting character, mechanical performance, because
This application selects 1.50~3.00% this scope.
Preferably, the silver alloy also includes silicon, and the weight/mass percentage composition of the silicon is 0.10~0.60%.Silicon can be notable
Improve the casting character and anti-oxidant discoloration of alloy, and effective blanching effect is produced to the color of alloy, improve alloy
Brightness.But in silver alloy of the present invention, inventor attempts to find by a large amount of, when silicone content is less than 0.1%, the casting of alloy
Surface easily blacks when making poor-performing, casting and heat treatment, and the brightness of alloy is undesirable, and when silicone content is higher than 0.6%,
Have the tendency of to cause alloy hot tearing and crystal grain extremely thick, processing characteristics deteriorates, and hard spot, influence surface polishing matter easily occur
Amount.In 0.10~0.60% this scope, silicon can to the effect in terms of the color of alloy, antioxygenic property, casting character
To reach Optimized Matching, therefore the application selects 0.10~0.60% this scope.And the bleaching of the silicon of above-mentioned content range
Effect is stronger, and they can mix more beautiful pink colour with silver-colored Optimized Matching.
Preferably, the silver alloy also includes beryllium, and the weight/mass percentage composition of the beryllium is 0.20~0.30%.Beryllium can improve
The mechanical property of alloy, improves the intensity and hardness of alloy, and improving welding property improves corrosion resistance.But in silver alloy of the present invention
In, inventor attempts to find by a large amount of, when beryllium content is less than 0.2%, mechanical property, welding performance and the corrosion resistance of alloy
Can it is undesirable, and beryllium content be higher than 0.3% when, the ductility and comprehensive mechanical property of alloy can be influenceed.0.20~0.30%
During this scope, beryllium can reach Optimized Matching to the effect in terms of the mechanical property, welding performance and corrosion resisting property of alloy,
Therefore the application selects 0.20~0.30% this scope.
Preferably, the silver alloy also includes cobalt, and the weight/mass percentage composition of the cobalt is 0.26~0.50%.Cobalt is played carefully
Change the effect of crystal grain, and the timeliness effect of alloy can be strengthened, be conducive to the mechanical property of alloy, but in silver alloy of the present invention,
Inventor attempts discovery by a large amount of, and when cobalt content is less than 0.26%, the grain structure of alloy is undesirable, particularly in annealing
When crystal grain may grow up, and cobalt content is when being higher than 0.5%, and the casting character of alloy is deteriorated, and ductility and comprehensive mechanical property
Deteriorate.In 0.26~0.50% this scope, grain structure and mechanical property of the cobalt to alloy, welding performance and corrosion resisting property
In terms of effect can reach Optimized Matching, therefore the application selects 0.26~0.50% this scope.
Preferably, the silver alloy also includes tin, and the weight/mass percentage composition of the tin is 0.30~0.80%.Tin can improve
The anti-oxidant discoloration of alloy, reduces alloy melting point, improves alloy flowability and casting character.But in silver alloy of the present invention
In, inventor attempts to find by a large amount of, when Theil indices are less than 0.3%, the casting character of alloy and anti-oxidant discoloration
It is undesirable, and Theil indices are when being higher than 0.8%, the casting character of alloy is deteriorated, and ductility and comprehensive mechanical property deteriorate.
During 0.30~0.80% this scope, in terms of cobalt is to the grain structure and mechanical property of alloy, welding performance and corrosion resisting property
Effect can reach Optimized Matching, therefore the application selects 0.30~0.80% this scope.
Preferably, the silver alloy also includes yttrium, and the weight/mass percentage composition of the yttrium is 0.05~0.10%.Yttrium can improve
The brightness of alloy and anti-oxidant discoloration, crystal grain thinning tissue improve the hardness of alloy, improve casting character.But in this hair
In bright silver alloy, inventor attempts to find by a large amount of, when yttrium content is less than 0.05%, the casting character of alloy and anti-oxidant
Discoloration is undesirable, and tissue, as-cast grain size is larger.And yttrium content be higher than 0.10% when, easily scene segregation, produce oxygen
Change is mingled with, and ductility is greatly reduced, and causes the fragility of alloy, and the polishing performance of alloy also deteriorates.0.05~0.10% this
During scope, yttrium can reach excellent to the effect in terms of the grain structure and mechanical property of alloy, welding performance and corrosion resisting property
Change matching, therefore the application selects 0.05~0.10% this scope.
Meanwhile, the present invention also provides a kind of preparation method of above-mentioned jewellery pink colour silver alloy, and methods described is：By raw material
It is placed in crucible, vacuumizes, applying argon gas, then carries out melting, treat that furnace charge is all melting down, molten metal is poured into ingot mould,
Pink colour silver alloy ingot casting is obtained, by ingot casting cleaning, drying, the jewellery pink colour silver alloy is produced.
It is related to the high or oxidizable alloying element of some fusing points in alloy of the present invention, to avoid directly using simple metal material
Smelting temperature height, the composition brought during alloyage fluctuates the problems such as big, metallurgical quality is poor, first prepares intermediate alloy.
Preferably, above-mentioned raw materials include the composition of following weight/mass percentage composition：Fine silver 33.2~42.6%, anaerobic fine copper
22.5~35.6%, brass 5.3~10.7%, cupro silicon 0.3~4.8%, beallon 10.2~15.1%, signal bronze
3.1~8.1%, copper yittrium alloy 1.1~2.1%, copper-cobalt alloy 2.5~4.3%.
Preferably, siliceous 10wt% in 10wt% containing cobalt in the copper-cobalt alloy, described cupro silicon, the copper yttrium is closed
Stanniferous 10wt% in 5wt% containing yttrium in gold, the signal bronze.
Relative to prior art, beneficial effects of the present invention are：
Silver alloy of the present invention, its color is in bright pink, and hardness of cast form, fusing point are moderate, are cast as with good
Type performance and punch forming performance, meet jewellery shaping and inlay requirement, in 37 DEG C of synthetic perspirations have good corrosion resistance,
Anti-oxidant discoloration, with low cost, the actual application value height of alloy.
Brief description of the drawings
Fig. 1 is the differential thermal analysis curve of jewellery pink colour silver alloy described in embodiment 1；
Fig. 2 is the differential thermal analysis curve of jewellery pink colour silver alloy described in embodiment 2.
Embodiment
To better illustrate the object, technical solutions and advantages of the present invention, below in conjunction with specific embodiment to the present invention
It is described further.
Embodiment 1
A kind of jewellery of the present invention embodiment of pink colour silver alloy, the pink colour silver alloy bag of jewellery described in the present embodiment
Composition containing following weight/mass percentage composition：
34.91wt% silver, 60.24wt% copper, 3.00wt% zinc, 0.56wt% silicon, 0.25wt% berylliums, 0.39wt% cobalts,
0.50wt% tin, 0.06wt% yttriums, and other inevitable impurity.
Jewellery described in the present embodiment are as follows with a kind of preparation method of pink colour silver alloy：
(1) alloyage
1) intermediate alloy is prepared：Select anaerobic fine copper, the gold that amount containing cobalt is 99.99wt% that copper content is 99.95wt%
Belong to the gold that cobalt, the metallic silicon that silicon content is 99.8wt%, the metallic yttrium that amount containing yttrium is 99.9wt%, stanniferous amount are 99.95wt%
Belong to tin, prepare the copper yttrium of the copper-cobalt alloy, siliceous 10wt% cupro silicon, the 5wt% containing yttrium of the 10wt% containing cobalt with them respectively
The signal bronze of alloy, stanniferous 10wt%, these intermediate alloys smelting and pouring ingot under vacuum protection atmosphere.
2) it is for 99.95wt% anaerobic fine copper, zinc content using silver content as 99.95wt% fine silver, copper content
It is prepared by 29.8wt% H70 brass, the casting beryllium-bronze Cu-2Be-0.5Co-0.3Si of the 2wt% containing beryllium, and previous step
Intermediate alloy be raw material, prepare the present invention pink colour silver alloy, match it is as follows：
35.0wt% fine silver, 28.2wt% anaerobics fine copper, 10.7wt%H70 brass, 4.4wt% cupro silicons,
12.7wt% beryllium coppers, 5.1wt% signal bronzes, 1.3wt% copper yittrium alloy, 3.3wt% copper-cobalt alloys.
(2) melting and casting
The raw material prepared in proportion and intermediate alloy are placed in graphite crucible, -0.1MPa, Ran Houchong is evacuated down to
Enter industrial straight argon.Using vacuum induction melting, treat that furnace charge is all melting down, after temperature component is uniform, molten metal is poured into steel ingot
In mould, pink colour silver alloy ingot casting is obtained.By ingot casting cleaning, drying, you can as Jewelry casting or stamping raw material.
(3) the performance test research of alloy
The pink colour silver alloy color that the present embodiment is prepared is pink bright, and hardness is moderate, meets jewellery shaping and inlays requirement,
The fusing point of alloy is adapted to use precision casting process, and alloy has good corrosion resistance in 37 DEG C of synthetic perspirations, with low cost,
Far below containing gold, palladium, germanium alloy.
1) hardness of cast form of alloy：HV103
2) colour index of alloy：L*=84.29, a*=4.11, b*=14.7, with beautiful pink colour.
3) differential thermal analysis curve of alloy is as shown in Figure 1：Melting range is 755.4-788.7 DEG C, is especially suitable for using stone
Cream type hot investment casting.
4) corrosion resistance of alloy：In 37 DEG C of synthetic perspirations, corrosion potential is -0.71V, and pitting potential is -0.1V, tool
There is good anti-corrosion discoloration-resisting.
Embodiment 2
A kind of jewellery of the present invention embodiment of pink colour silver alloy, the pink colour silver alloy bag of jewellery described in the present embodiment
Composition containing following weight/mass percentage composition：
39.90wt% silver, 57.12wt% copper, 1.97wt% zinc, 0.12wt% silicon, 0.25wt% berylliums, 0.26wt% cobalts,
0.30wt% tin, 0.06wt% yttriums and other inevitable impurity.
Jewellery described in the present embodiment are as follows with a kind of preparation method of pink colour silver alloy：
(1) alloyage
1) intermediate alloy is prepared：Select anaerobic fine copper, the gold that amount containing cobalt is 99.99wt% that copper content is 99.95wt%
Belong to the gold that cobalt, the metallic silicon that silicon content is 99.8wt%, the metallic yttrium that amount containing yttrium is 99.9wt%, stanniferous amount are 99.95wt%
Belong to tin, prepare the copper yttrium of the copper-cobalt alloy, siliceous 10wt% cupro silicon, the 5wt% containing yttrium of the 10wt% containing cobalt with them respectively
The signal bronze of alloy, stanniferous 10wt%, these intermediate alloys smelting and pouring ingot under vacuum protection atmosphere.
2) it is for 99.95wt% anaerobic fine copper, zinc content using silver content as 99.95wt% fine silver, copper content
It is prepared by 29.8wt% H70 brass, the casting beryllium-bronze Cu-2Be-0.5Co-0.3Si of the 2wt% containing beryllium, and previous step
Intermediate alloy be raw material, prepare the present invention pink colour silver alloy, match it is as follows：
40wt% fine silver, 34.3wt% anaerobics fine copper, 7wt%H70 brass, 0.3wt% cupro silicons, 12.7wt% berylliums
Copper, 3.1wt% signal bronzes, 1.3wt% copper yittrium alloy, 2.0wt% copper-cobalt alloys.
(2) melting and casting
The raw material prepared in proportion and intermediate alloy are placed in graphite crucible, -0.1MPa, Ran Houchong is evacuated down to
Enter industrial straight argon.Using vacuum induction melting, treat that furnace charge is all melting down, after temperature component is uniform, molten metal is poured into steel ingot
In mould, pink colour silver alloy ingot casting is obtained.By ingot casting cleaning, drying, you can as Jewelry casting or stamping raw material.
(3) alloy performance test is analyzed
The pink colour silver alloy that the present embodiment is prepared has color pink bright, and hardness is moderate, meets jewellery shaping and inlays
It is required that, the fusing point of alloy is adapted to use precision casting process, and alloy has good corrosion resistance, cost in 37 DEG C of synthetic perspirations
It is cheap, far below containing gold, palladium, germanium alloy.
1) hardness of cast form of alloy：HV104
2) colour index of alloy：L*=84.68, a*=5.14, b*=14.62, with beautiful pink colour.
3) differential thermal analysis curve of alloy is as shown in Figure 2：Melting range is 755.0-790.1 DEG C, is especially suitable for using stone
Cream type hot investment casting.
4) polarization curve and corrosion resistance of alloy：In 37 DEG C of synthetic perspirations, corrosion potential is -0.53v, pitting potential
For -0.1V, with good anti-corrosion discoloration-resisting.
Embodiment 3
A kind of jewellery of the present invention embodiment of pink colour silver alloy, the pink colour silver alloy bag of jewellery described in the present embodiment
Composition containing following weight/mass percentage composition：
33.10wt% silver, 61.50wt% copper, 3.00wt% zinc, 0.60wt% silicon, 0.30wt% berylliums, 0.50wt% cobalts,
0.80wt% tin, 0.10wt% yttriums and other inevitable impurity.
Jewellery described in the present embodiment are as follows with a kind of preparation method of pink colour silver alloy：
(1) alloyage
1) intermediate alloy is prepared：Select anaerobic fine copper, the gold that amount containing cobalt is 99.99wt% that copper content is 99.95wt%
Belong to cobalt, the gold that metallic silicon that silicon content is 99.8wt%, the metallic yttrium that amount containing yttrium is 99.9wt%, stanniferous amount are 99.95wt%
Belong to tin, prepare the copper yttrium of the copper-cobalt alloy, siliceous 10wt% cupro silicon, the 5wt% containing yttrium of the 10wt% containing cobalt with them respectively
The signal bronze of alloy, stanniferous 10wt%, these intermediate alloys smelting and pouring ingot under vacuum protection atmosphere.
2) it is for 99.95wt% anaerobic fine copper, zinc content using silver content as 99.95wt% fine silver, copper content
It is prepared by 29.8wt% H70 brass, the casting beryllium-bronze Cu-2Be-0.5Co-0.3Si of the 2wt% containing beryllium, and previous step
Intermediate alloy be raw material, prepare the present invention pink colour silver alloy, match it is as follows：
33.2wt% fine silver, 22.5wt% anaerobics fine copper, 10.6wt%H70 brass, 4.8wt% cupro silicons,
15.1wt% beryllium coppers, 8.1wt% signal bronzes, 2.1wt% copper yittrium alloy, 4.3wt% copper-cobalt alloys.
(2) melting and casting
The raw material prepared in proportion and intermediate alloy are placed in graphite crucible, -0.1MPa, Ran Houchong is evacuated down to
Enter industrial straight argon.Using vacuum induction melting, treat that furnace charge is all melting down, after temperature component is uniform, molten metal is poured into steel ingot
In mould, pink colour silver alloy ingot casting is obtained.By ingot casting cleaning, drying, you can as Jewelry casting or stamping raw material.
The pink colour silver alloy that the present embodiment is prepared has color pink bright, and hardness is moderate, meets jewellery shaping and inlays
It is required that, the fusing point of alloy is adapted to use precision casting process, and alloy has good corrosion resistance, cost in 37 DEG C of synthetic perspirations
It is cheap, far below containing gold, palladium, germanium alloy.
1) hardness of cast form of alloy：HV108
2) colour index of alloy：L*=83.77, a*=4.23, b*=15.16, with beautiful pink colour.
3) melting range of alloy is 761.6-781.0 DEG C, is especially suitable for using plaster precision foundry.
4) corrosion resistance of alloy：In 37 DEG C of synthetic perspirations, corrosion potential is -0.74V, and pitting potential is -0.08V,
With good anti-corrosion discoloration-resisting.
Embodiment 4
A kind of jewellery of the present invention embodiment of pink colour silver alloy, the pink colour silver alloy bag of jewellery described in the present embodiment
Composition containing following weight/mass percentage composition：
42.50wt% silver, 55.00wt% copper, 1.50wt% zinc, 0.10wt% silicon, 0.20wt% berylliums, 0.30wt% cobalts,
0.30wt% tin, 0.05wt% yttriums and other inevitable impurity.
Jewellery described in the present embodiment are as follows with a kind of preparation method of pink colour silver alloy：
(1) alloyage
1) intermediate alloy is prepared：Select anaerobic fine copper, the gold that amount containing cobalt is 99.99wt% that copper content is 99.95wt%
Belong to the gold that cobalt, the metallic silicon that silicon content is 99.8wt%, the metallic yttrium that amount containing yttrium is 99.9wt%, stanniferous amount are 99.95wt%
Belong to tin, prepare the copper yttrium of the copper-cobalt alloy, siliceous 10wt% cupro silicon, the 5wt% containing yttrium of the 10wt% containing cobalt with them respectively
The signal bronze of alloy, stanniferous 10wt%, these intermediate alloys smelting and pouring ingot under vacuum protection atmosphere.
2) it is for 99.95wt% anaerobic fine copper, zinc content using silver content as 99.95wt% fine silver, copper content
It is prepared by 29.8wt% H70 brass, the casting beryllium-bronze Cu-2Be-0.5Co-0.3Si of the 2wt% containing beryllium, and previous step
Intermediate alloy be raw material, prepare the present invention pink colour silver alloy, match it is as follows：
42.6wt% fine silver, 35.6wt% anaerobics fine copper, 5.3wt%H70 brass, 0.3wt% cupro silicons, 10.2wt%
Beryllium copper, 3.1wt% signal bronzes, 1.1wt% copper yittrium alloy, 2.5wt% copper-cobalt alloys.
(2) melting and casting
The raw material prepared in proportion and intermediate alloy are placed in graphite crucible, -0.1MPa, Ran Houchong is evacuated down to
Enter industrial straight argon.Using vacuum induction melting, treat that furnace charge is all melting down, after temperature component is uniform, molten metal is poured into steel ingot
In mould, pink colour silver alloy ingot casting is obtained.By ingot casting cleaning, drying, you can as Jewelry casting or stamping raw material.
The pink colour silver alloy that the present embodiment is prepared has color pink bright, and hardness is moderate, meets jewellery shaping and inlays
It is required that, the fusing point of alloy is adapted to use precision casting process, and alloy has good corrosion resistance, cost in 37 DEG C of synthetic perspirations
It is cheap, far below containing gold, palladium, germanium alloy.
1) hardness of cast form of alloy：HV104
2) colour index of alloy：L*=84.26, a*=3.87, b*=15.73, with beautiful pink colour.
3) melting range of alloy is 752.4-787.6 DEG C, is especially suitable for using plaster precision foundry.
4) corrosion resistance of alloy：In 37 DEG C of synthetic perspirations, corrosion potential is -0.76V, and pitting potential is -0.13V,
With good anti-corrosion discoloration-resisting.
Embodiment 5
A kind of jewellery of the present invention embodiment of pink colour silver alloy, the pink colour silver alloy bag of jewellery described in the present embodiment
Composition containing following weight/mass percentage composition：
37.91wt% silver, 58.85wt% copper, 1.75wt% zinc, 0.31wt% silicon, 0.22wt% berylliums, 0.43wt% cobalts,
0.45wt% tin, 0.08wt% yttriums and other inevitable impurity.
Jewellery described in the present embodiment are as follows with a kind of preparation method of pink colour silver alloy：
(1) alloyage
1) intermediate alloy is prepared：Select anaerobic fine copper, the gold that amount containing cobalt is 99.99wt% that copper content is 99.95wt%
Belong to the gold that cobalt, the metallic silicon that silicon content is 99.8wt%, the metallic yttrium that amount containing yttrium is 99.9wt%, stanniferous amount are 99.95wt%
Belong to tin, prepare the copper yttrium of the copper-cobalt alloy, siliceous 10wt% cupro silicon, the 5wt% containing yttrium of the 10wt% containing cobalt with them respectively
The signal bronze of alloy, stanniferous 10wt%, these intermediate alloys smelting and pouring ingot under vacuum protection atmosphere.
2) it is for 99.95wt% anaerobic fine copper, zinc content using silver content as 99.95wt% fine silver, copper content
It is prepared by 29.8wt% H70 brass, the casting beryllium-bronze Cu-2Be-0.5Co-0.3Si of the 2wt% containing beryllium, and previous step
Intermediate alloy be raw material, prepare the present invention pink colour silver alloy, match it is as follows：
38wt% fine silver, 33wt% anaerobics fine copper, 6.2wt%H70 brass, 2.3wt% cupro silicons, 11.3wt% berylliums
Copper, 4.5wt% signal bronzes, 1.6wt% copper yittrium alloy, 3.8wt% copper-cobalt alloys.
(2) melting and casting
The raw material prepared in proportion and intermediate alloy are placed in graphite crucible, -0.1MPa, Ran Houchong is evacuated down to
Enter industrial straight argon.Using vacuum induction melting, treat that furnace charge is all melting down, after temperature component is uniform, molten metal is poured into steel ingot
In mould, pink colour silver alloy ingot casting is obtained.By ingot casting cleaning, drying, you can as Jewelry casting or stamping raw material.
The pink colour silver alloy that the present embodiment is prepared has color pink bright, and hardness is moderate, meets jewellery shaping and inlays
It is required that, the fusing point of alloy is adapted to use precision casting process, and alloy has good corrosion resistance, cost in 37 DEG C of synthetic perspirations
It is cheap, far below containing gold, palladium, germanium alloy.
1) hardness of cast form of alloy：HV105
2) colour index of alloy：L*=83.58, a*=4.92, b*=14.84, with beautiful pink colour.
3) melting range of alloy is 758.8-792.3 DEG C, is especially suitable for using plaster precision foundry.
4) corrosion resistance of alloy：In 37 DEG C of synthetic perspirations, corrosion potential is -0.56V, and pitting potential is -0.11V,
With good anti-corrosion discoloration-resisting.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than the present invention is protected
The limitation of scope is protected, although being explained in detail with reference to preferred embodiment to the present invention, one of ordinary skill in the art should
Understand, technical scheme can be modified or equivalent substitution, without departing from the essence of technical solution of the present invention
And scope.
Claims (9)
1. a kind of jewellery pink colour silver alloy, it is characterised in that include the composition of following weight/mass percentage composition：Silver 33.10~
42.50%th, copper 55.00~61.50%.
2. jewellery as claimed in claim 1 pink colour silver alloy, it is characterised in that the silver alloy also includes zinc, the zinc
Weight/mass percentage composition be 1.50~3.00%.
3. jewellery as claimed in claim 1 or 2 pink colour silver alloy, it is characterised in that the silver alloy also includes silicon, described
The weight/mass percentage composition of silicon is 0.10~0.60%.
4. jewellery as claimed in claim 1 or 2 pink colour silver alloy, it is characterised in that the silver alloy also includes beryllium, described
The weight/mass percentage composition of beryllium is 0.20~0.30%.
5. jewellery as claimed in claim 1 or 2 pink colour silver alloy, it is characterised in that the silver alloy also includes cobalt, described
The weight/mass percentage composition of cobalt is 0.26~0.50%.
6. jewellery as claimed in claim 1 or 2 pink colour silver alloy, it is characterised in that the silver alloy also includes tin, described
The weight/mass percentage composition of tin is 0.30~0.80%.
7. jewellery as claimed in claim 1 or 2 pink colour silver alloy, it is characterised in that the silver alloy also includes yttrium, described
The weight/mass percentage composition of yttrium is 0.05~0.10%.
8. a kind of jewellery as described in any one of claim 1~7 preparation method of pink colour silver alloy, it is characterised in that institute
The method of stating is：Raw material is placed in crucible, vacuumized, applying argon gas, melting is then carried out, treats that furnace charge is all melting down, by metal
Liquid is poured into ingot mould, obtains pink colour silver alloy ingot casting, by ingot casting cleaning, drying, produces the jewellery pink colour silver alloy.
9. the jewellery as claimed in claim 8 preparation method of pink colour silver alloy, it is characterised in that the raw material is comprising following
The composition of weight/mass percentage composition：Fine silver 33.2~42.6%, anaerobic fine copper 22.5~35.6%, brass 5.3~10.7%, copper silicon
Alloy 0.3~4.8%, beallon 10.2~15.1%, signal bronze 3.1~8.1%, copper yittrium alloy 1.1~2.1%, copper
Cobalt alloy 2.5~4.3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710478216.2A CN107164651B (en) | 2017-06-21 | 2017-06-21 | A kind of jewellery pink colour silver alloy and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710478216.2A CN107164651B (en) | 2017-06-21 | 2017-06-21 | A kind of jewellery pink colour silver alloy and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107164651A true CN107164651A (en) | 2017-09-15 |
| CN107164651B CN107164651B (en) | 2019-09-20 |
Family
ID=59819970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710478216.2A Active CN107164651B (en) | 2017-06-21 | 2017-06-21 | A kind of jewellery pink colour silver alloy and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107164651B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115074573A (en) * | 2022-07-21 | 2022-09-20 | 武汉范琦珠宝饰品有限公司 | High-oxidation-resistance color-changing silver-based alloy for jewelry and preparation method thereof |
| CN115679152A (en) * | 2022-11-04 | 2023-02-03 | 广州番禺职业技术学院 | Decorative brass alloy with excellent casting performance and preparation method thereof |
| CN115747561A (en) * | 2022-11-04 | 2023-03-07 | 广州番禺职业技术学院 | Wear-resistant and corrosion-resistant jewelry brass alloy and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999792A (en) * | 2006-09-20 | 2007-07-18 | 番禺职业技术学院 | Anti discolour silver alloy |
| US20090185945A1 (en) * | 2008-01-14 | 2009-07-23 | Thielemann Richard J | Karatium pink |
| RU2384635C1 (en) * | 2009-06-19 | 2010-03-20 | Юлия Алексеевна Щепочкина | Copper based alloy |
| CN102876916A (en) * | 2012-09-27 | 2013-01-16 | 杭州震达五金机械有限公司 | Argentiferous gold-simulating copper alloy and preparation method thereof |
-
2017
- 2017-06-21 CN CN201710478216.2A patent/CN107164651B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999792A (en) * | 2006-09-20 | 2007-07-18 | 番禺职业技术学院 | Anti discolour silver alloy |
| US20090185945A1 (en) * | 2008-01-14 | 2009-07-23 | Thielemann Richard J | Karatium pink |
| RU2384635C1 (en) * | 2009-06-19 | 2010-03-20 | Юлия Алексеевна Щепочкина | Copper based alloy |
| CN102876916A (en) * | 2012-09-27 | 2013-01-16 | 杭州震达五金机械有限公司 | Argentiferous gold-simulating copper alloy and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115074573A (en) * | 2022-07-21 | 2022-09-20 | 武汉范琦珠宝饰品有限公司 | High-oxidation-resistance color-changing silver-based alloy for jewelry and preparation method thereof |
| CN115679152A (en) * | 2022-11-04 | 2023-02-03 | 广州番禺职业技术学院 | Decorative brass alloy with excellent casting performance and preparation method thereof |
| CN115747561A (en) * | 2022-11-04 | 2023-03-07 | 广州番禺职业技术学院 | Wear-resistant and corrosion-resistant jewelry brass alloy and preparation method thereof |
| CN115679152B (en) * | 2022-11-04 | 2023-08-25 | 广州番禺职业技术学院 | Decorative brass alloy with excellent casting performance and preparation method thereof |
| CN115747561B (en) * | 2022-11-04 | 2023-12-12 | 广州番禺职业技术学院 | Wear-resistant corrosion-resistant jewelry brass alloy and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107164651B (en) | 2019-09-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107385266B (en) | High-intensitive pure gold material and preparation method thereof | |
| CN107164651B (en) | A kind of jewellery pink colour silver alloy and preparation method thereof | |
| CN108425029A (en) | A kind of not the argentiferous 18K of resistance to brittle failure rose golds and its processing technology | |
| CN102876916A (en) | Argentiferous gold-simulating copper alloy and preparation method thereof | |
| CN108531801A (en) | A kind of findings have the 10K dark funds and its technique of excellent abrasion resistance properties | |
| CN101358331B (en) | Magnetron sputtering rose gold target material and preparation method thereof | |
| CN103695692B (en) | A kind of high-purity high rigidity alloy material and preparation method thereof | |
| CN104357703A (en) | Rose-bengal 18 K gold and preparation method thereof | |
| US4557895A (en) | Yellow gold alloy | |
| CN115747562B (en) | Ornament copper alloy and preparation method thereof | |
| CN108624777A (en) | One kind having saturation rosiness and corrosion resistant cheap rose copper alloy | |
| CN110699586B (en) | Hard pure silver joint coating material and preparation method thereof | |
| CN108796293A (en) | The resistance to wear-resistant low cost of brittle failure has roseate rose copper alloy | |
| CN105420531B (en) | Nickel-free white gold alloy for high-temperature enameled jewelry and preparation method for nickel-free white gold alloy | |
| RU2349660C1 (en) | Jewelry alloy on basis of palladium | |
| CN108531765A (en) | A kind of corrosion-resistant resistance to brittle failure high intensity 10K billons of brown and its technique | |
| CN108728681A (en) | A kind of corrosion-resistant rub resistance jewellery material rosiness palldium alloy | |
| CN103820671A (en) | High-hardness pure gold material and preparation method thereof | |
| CN108796276A (en) | The jewellery wear-resistant no nickel 14K platinum of resistance to discoloration and its technique | |
| CN108728685A (en) | Jewellery rub resistance high intensity has rose gold color and luster 14K rose silver alloy | |
| CN115786764B (en) | Copper mirror material and preparation method thereof | |
| CN108796280A (en) | A kind of jewellery of hydrogen sulfide corrosion-resistant blue 18K gold and its technique | |
| KR20000056139A (en) | pink silver | |
| CN111394607A (en) | Nickel-free low-silver-content silver-storing alloy with excellent die-casting performance and process thereof | |
| CN108796279A (en) | A kind of jewellery of hydrogen sulfide corrosion-resistant blue 14K gold 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |