CN108754284A - A kind of not the argentiferous 10K of resistance to brittle failure rose golds and its processing technology - Google Patents
A kind of not the argentiferous 10K of resistance to brittle failure rose golds and its processing technology Download PDFInfo
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- CN108754284A CN108754284A CN201810662278.3A CN201810662278A CN108754284A CN 108754284 A CN108754284 A CN 108754284A CN 201810662278 A CN201810662278 A CN 201810662278A CN 108754284 A CN108754284 A CN 108754284A
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- 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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
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- 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
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Abstract
The invention discloses a kind of not the argentiferous 10K of resistance to brittle failure rose golds and its processing technologys.By weight percentage, the group of alloy becomes Ba:0.2-0.4wt.%,Zr:0.3-0.5wt.%,Pd:1.0-1.5wt.%,Mo:0.3-0.5wt.%,In:25.0-30.0wt.%,Au:40.0-42.0wt.%, surplus are copper.The patent provides a kind of the 10K rose golds and its processing technology of novel not argentiferous, and solve the characteristic of traditional rose gold low-temperature brittle fracture.Due to by alloying component innovation and optimization break through the jewellery development bottleneck of the red golden materials of 10K, 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 golden yellow and erosion-resisting noble metal most rare in metal.Proof gold is best electron conductor material,
With good ductility, it can be pressed into thin foil, have high conductivity of heat and electric conductivity.When adding other alloying elements in gold
When, just form billon.For billon, remove outside White gold, it is other to be all referred to as handsel.Why present
Go out colored reason, is because metal ratio is different.Many billons have these effects, for example, golden nickel alloy, gold indium alloy,
Gold copper, electrum etc..The color and luster of most of billon is golden series, such as golden yellow, shallow golden yellow, rose gold.It is another
A colour system is inclined red colour system, such as pink, pink, rose-red.Electrum can also obtain green, wherein golden nickel alloy and gold and silver
Alloy can obtain this color effects.
Rose gold is a kind of billon, since it has very fashion, beautiful pink rose color, thus is widely used in
Jewelry Design and processing.Rose gold is needed by ten multiple working procedures（Heat treatment, briquetting, wire drawing, plating etc.）Finished product, rose can just be gone out
The workmanship of rare gold is very careful, and any surface finish, appearance is salubrious, and interior light sensation is very strong, is that gold is incomparable.Pink rose gold
Victoria's late period is appeared in earliest, jewelry designer at that time is with this warm tones metal come embedding gem and embossment, or system
Make the ornaments such as brooch, nowadays it is on the Ecological theme and Jewelry Design and manufacture craft of fashion world prevalence, and weeds out the old and bring forth the new.
Traditionally, gold and other composition of alloy of the rose gold by 75%（It is commonly called as three coloured golds）.Hardness is compared with proof gold height, with biography
The gold of system is compared with platinum, and pink rose gold not only can make the color of colored gemstone denser, and metal is also presented
Exquisiteness, the exquisiteness of material.The warm tones such as its pink, rose bring it is warm with it is happy.It is on style and in different poses and with different expressions,
There are pointed heart, olive, oval, pyriform, Emerald.The ornaments of various different styles are bright dazzling, and women is either
Business wear or evening dress and suspender skirt, matches all show graceful makings therewith.Meanwhile the material hardness is big, it is not variable
Shape or scratch are used in the gold jewellery design of accurate exquisiteness, can bring into full play the design creativity of complicated fineness.
One of rose gold ornaments important manufacture and the use of problem is brittle failure, this is close with the immanent structure of K rose golds
It is relevant.The red golden materials of K of rose gold are easy to that brittle fracture occurs, and easy to break just as dried firewood when serious, there is no show
Go out the mechanical property of the excellent precious metal alloys of toughness plasticity.This brittle fracture and the generation of crackle were not only manufactured in jewellery
It will produce in journey, can also occur suddenly during the use of jewellery.It is frequent in jewellery manufacturing shop, when the red golden material castings of K
The crackle of many places can be found afterwards by making, and incision position does not have any plastic deformation, and typical brittle fracture is presented.Due to this spy
Different property, it is especially prominent in production and use, bring many puzzlements to jewellery manufacturing enterprise and user.
In essence, when the alloy of Au and Ag is in complete solid solution condition at high temperature.When temperature is reduced to 410 DEG C or less
When, the composition different according to alloy will generate different interphases.These interphases show as the arrangement of atom in short distance even
Long-range order situation is known as ordering pransition in materialogy.Typical ordering structure has Au3Cu, AuCu and AuCu3Three kinds
Type almost covers the binary composition range of entire Au and Ag.Regardless of the ordering structure of form, to Au's and Ag
Alloy mechanical performance is of great impact, and the presence of lattice distortion and ordered domain interface increases the resistance of material plasticity deformation, significantly
The intensity and hardness of alloy are improved, but greatly reduces the plasticity of material, alloy will show apparent brittleness.Commonly
18K rose golds, 14K rose golds and 10K rose golds can be all formed in the composition range of sequence structure, therefore after casting
In cooling procedure in cooling procedure, or after welding, or even it is likely to be formed in the cooling procedure of sealing wax on edge stone
Ordering structure and the brittleness for increasing material so that in carrying out casting last handling process to gadget, slightly by external force or punching
Hitting may cause gadget to be broken, and very big puzzlement and difficulty are brought to jewellery production.
The low-temperature brittle fracture of K rose golds has been the inevitable problem of field of jewelry, also affects rose gold actual
It produces and sells.Enterprise and research institution both domestic and external have carried out many trials and have studied very much for a long time.But presently,
The brittle failure problem of K rose golds can only be solved using round-about way, such as accelerate the setting rate of casting, use is equal again
The technique etc. deformed after homogenizing.But these modes fundamentally can not provide thorough solution for the low-temperature brittle fracture of K rose golds
Certainly scheme, after prolonged use K rose golds brittle fracture still can occur.It can be passed through by advanced design of material technology
The thermodynamics and kinetics means of bottom innovate alloy material, and the solution of the low-temperature brittle fracture problem to K rose golds
Prodigious market value is certainly had with industrialization.In face of the domestic and international market competition being growing more intense, it is necessary to accelerate structure tune
Synchronizing is cut down, this is not only the needs of China's jewellery industry survival and development and the development trend of world today's related field.Letter
For list, the production of restriction China's K rose golds is broken through by technological innovation and optimization design and uses development bottleneck.
Invention content
The purpose of the present invention is to overcome the deficiency in the prior art, provides a kind of not argentiferous 10K of resistance to brittle failure rose golds and its adds
Work technique.
To achieve the goals above, the present invention adopts the following technical scheme that：
A kind of not the argentiferous 10K of resistance to brittle failure rose golds and its processing technology.By weight percentage, the group of alloy becomes Ba:0.2-
0.4wt.%,Zr:0.3-0.5wt.%,Pd:1.0-1.5wt.%,Mo:0.3-0.5wt.%,In:25.0-30.0wt.%,Au:
40.0-42.0wt.%, surplus are copper.
The preparation method of the above-mentioned not argentiferous 10K of resistance to brittle failure rose golds, includes the following steps：As above the raw material matched is added
In the electric induction furnace protected to argon gas, and use graphite crucible;It is protected, is avoided big using the argon gas of low discharge after metal molten
Air-flow makes the serious scaling loss of alloying element;10 minutes are kept the temperature at 1150 degree when melting, it is uniform by Efco-Northrup furnace electromagnetic agitation;Stirring
1 minute being kept the temperature at 1250 degree after uniformly and being cast come out of the stove;Billon casting uses the punching block of diameter 100-200mm, and uses water
Cold mode cools down.The ingot casting of gained is rolled at room temperature, it is 30-40% that every time, which rolls lower amount,;In after rolling twice
Between annealing temperature be 680 degree, heat preservation 0.5 hour;Material is finally rolled into the golden plate that thickness is 10-20mm;It is molded in jewellery
In the process, it needs to carry out intermediate annealing process, eliminates the stress in process;Wherein, homogenization temperature is 800 degree, the time
It is 1-2 hours.
Compared with prior art, the present invention has the advantages that：
（1）Existing 10K rose golds can be formed with sequence structure under common cooling velocity, thus result in rose gold
Structural fragility.In common billon composition range, cooling procedure in cooling procedure after casting or after welding
In, or even on edge stone in the cooling procedure of sealing wax, can all be formed with sequence structure and increase the brittleness of material so as to decorations
Part carries out in casting last handling process, slightly gadget may be caused to be broken by external force or impact, is brought very to jewellery production
Big puzzlement and difficulty.The rose gold of present patent application protection, using silver, is overcome in itself due to structurally ordered due to not having
Structural stress and brittleness caused by changing.By introducing suitable trace element and content, can avoid in cooling procedure
It the forming core of cenotype and grows up, thus final products exist in the form of single-phase.Due to the not generation of ordering or phase allergic effect
The generation of power, thus great plasticity, elongation percentage can reach 40-60% to the alloy at room temperature.During preparing jewellery,
Deflection can reach 50% and not have to intermediate annealing.Due to improving mechanical property, thus processing efficiency and rejection rate drop significantly
It is low.
（2）The rose gold of present patent application not will produce brittle failure after prolonged use, during the use of 10-20
It is not in ordering the phenomenon that either material is hardened or is broken caused by the generation of cenotype.Traditional 10K rose golds exist
After Homogenization Treatments, need to carry out medium temperature hot forging processing before rolling.But since inside ingot is of poor quality, remaining has oxide folder
Miscellaneous, when forging, will generate micro-crack at oxide inclusion.In forging process, micro-crack further expands, and causes lumber recovery low.
The billon of present patent application protection makes crystal grain be refined.In addition, the alloy has low liquid-solid phase solidification temperature range, it can
Hot cracking tendency is big when solving to cast, and casting cavity is low with loose apparent product yield rate to wait technical barriers.Smelting processing method
Simply, production cost is relatively low, reduces to equipment requirement.
（3）The color of the alloy is similar to 10K rose gold colors, and proportion is in 8.150g/cm3Left and right, fusing point 1100-
1180 degree.In addition, have splendid anti-discoloration, be immersed in simulation artificial sweat (acid sweat pH 4-5, alkaline sweat pH=
8-9,6% sodium chloride solution) in 240 h or more, color do not change.Aerial corrosion resistance belongs to compared with stabilizing material, weak
Belong to stable type material in acid, weak base sweat, corrosion resistance is by being added the higher alloying element of thermodynamic stability.In corrosion ring
In border, the protective film of passivation can be formed, this film is in different media, since unpolarizing is as a result, to show
Different corrosion resistances also relatively stablizes the corrosion resistance of strong acid, strong basicity sweat.Stand three months under atmospheric conditions with
On, if alloy polished surface is slightly dimmed, but wiped with flannelette, you can restore original gloss.It is more steady that the alloy belongs to corrosion resistance
Amorphous alloy can carry out medium temperature and cold working, and cutting material can remelting.Weldability can use spelter solder and gold, silver solder and autogamy imitative
Gold solder welds.The alloy is it is contemplated that the implementation and industrialization of the material obtain excellent economic benefit after all and society imitates
Benefit.
Specific implementation mode
Embodiment 1
A kind of not the argentiferous 10K of resistance to brittle failure rose golds and its processing technology.By weight percentage, the group of alloy becomes Ba:
0.2wt.%,Zr:0.3wt.%,Pd:1.0wt.%,Mo:0.3wt.%,In:25.0wt.%,Au:40.0wt.%, surplus are copper.On
The preparation method for stating the not argentiferous 10K of resistance to brittle failure rose golds, includes the following steps：As above the raw material matched is added to argon gas protection
Electric induction furnace in, and use graphite crucible;It is protected using the argon gas of low discharge after metal molten, big air-flow is avoided to make alloy
The serious scaling loss of element;10 minutes are kept the temperature at 1150 degree when melting, it is uniform by Efco-Northrup furnace electromagnetic agitation;After stirring evenly
1250 degree heat preservation 1 minute and cast come out of the stove;Billon casting uses the punching block of diameter 100-200mm, and by the way of water cooling
Cooling.The ingot casting of gained is rolled at room temperature, it is 30-40% that every time, which rolls lower amount,;Per intermediate annealing temperature after rolling twice
Degree is 680 degree, keeps the temperature 0.5 hour;Material is finally rolled into the golden plate that thickness is 10-20mm;In jewellery forming process, need
Intermediate annealing process is carried out, the stress in process is eliminated;Wherein, homogenization temperature is 800 degree, and the time is 1-2 hours.
The rose gold due to do not have using silver, overcome in itself due to structural stress caused by structure ordering with
And brittleness.By introducing suitable trace element and content, the forming core of cenotype can be avoided in cooling procedure and growing up, thus
Final products exist in the form of single-phase.Due to the not generation of ordering or the generation of transformation stress, thus the alloy exists
Great plasticity at room temperature, elongation percentage can reach 40-60%.During preparing jewellery, deflection can reach 50% without
Use intermediate annealing.Due to improving mechanical property, thus processing efficiency and rejection rate substantially reduce.The billon makes crystal grain obtain
Refinement.In addition, the alloy has low liquid-solid phase solidification temperature range, hot cracking tendency is big when can solve to cast, casting cavity
Equal technical barriers low with loose apparent product yield rate.Smelting processing method is simple, and production cost is relatively low, reduces to equipment
It is required that.
Embodiment 2
A kind of not the argentiferous 10K of resistance to brittle failure rose golds and its processing technology.By weight percentage, the group of alloy becomes Ba:
0.4wt.%,Zr:0.5wt.%,Pd:1.5wt.%,Mo:0.5wt.%,In:30.0wt.%,Au:42.0wt.%, surplus are copper.On
The preparation method for stating the not argentiferous 10K of resistance to brittle failure rose golds, includes the following steps：As above the raw material matched is added to argon gas protection
Electric induction furnace in, and use graphite crucible;It is protected using the argon gas of low discharge after metal molten, big air-flow is avoided to make alloy
The serious scaling loss of element;10 minutes are kept the temperature at 1150 degree when melting, it is uniform by Efco-Northrup furnace electromagnetic agitation;After stirring evenly
1250 degree heat preservation 1 minute and cast come out of the stove;Billon casting uses the punching block of diameter 100-200mm, and by the way of water cooling
Cooling.The ingot casting of gained is rolled at room temperature, it is 30-40% that every time, which rolls lower amount,;Per intermediate annealing temperature after rolling twice
Degree is 680 degree, keeps the temperature 0.5 hour;Material is finally rolled into the golden plate that thickness is 10-20mm;In jewellery forming process, need
Intermediate annealing process is carried out, the stress in process is eliminated;Wherein, homogenization temperature is 800 degree, and the time is 1-2 hours.
The rose gold due to do not have using silver, overcome in itself due to structural stress caused by structure ordering with
And brittleness.By introducing suitable trace element and content, the forming core of cenotype can be avoided in cooling procedure and growing up, thus
Final products exist in the form of single-phase.Due to the not generation of ordering or the generation of transformation stress, thus the alloy exists
Great plasticity at room temperature, elongation percentage can reach 40-60%.During preparing jewellery, deflection can reach 50% without
Use intermediate annealing.Due to improving mechanical property, thus processing efficiency and rejection rate substantially reduce.The billon makes crystal grain obtain
Refinement.In addition, the alloy has low liquid-solid phase solidification temperature range, hot cracking tendency is big when can solve to cast, casting cavity
Equal technical barriers low with loose apparent product yield rate.Smelting processing method is simple, and production cost is relatively low, reduces to equipment
It is required that.
Embodiment 3
A kind of not the argentiferous 10K of resistance to brittle failure rose golds and its processing technology.By weight percentage, the group of alloy becomes Ba:
0.3wt.%,Zr:0.4wt.%,Pd:1.2wt.%,Mo:0.4wt.%,In:28.0wt.%,Au:40.0wt.%, surplus are copper.On
The preparation method for stating the not argentiferous 10K of resistance to brittle failure rose golds, includes the following steps：As above the raw material matched is added to argon gas protection
Electric induction furnace in, and use graphite crucible;It is protected using the argon gas of low discharge after metal molten, big air-flow is avoided to make alloy
The serious scaling loss of element;10 minutes are kept the temperature at 1150 degree when melting, it is uniform by Efco-Northrup furnace electromagnetic agitation;After stirring evenly
1250 degree heat preservation 1 minute and cast come out of the stove;Billon casting uses the punching block of diameter 100-200mm, and by the way of water cooling
Cooling.The ingot casting of gained is rolled at room temperature, it is 30-40% that every time, which rolls lower amount,;Per intermediate annealing temperature after rolling twice
Degree is 680 degree, keeps the temperature 0.5 hour;Material is finally rolled into the golden plate that thickness is 10-20mm;In jewellery forming process, need
Intermediate annealing process is carried out, the stress in process is eliminated;Wherein, homogenization temperature is 800 degree, and the time is 1-2 hours.
The rose gold due to do not have using silver, overcome in itself due to structural stress caused by structure ordering with
And brittleness.By introducing suitable trace element and content, the forming core of cenotype can be avoided in cooling procedure and growing up, thus
Final products exist in the form of single-phase.By the generation of not ordering or the generation of transformation stress, thus the alloy is in room
Great plasticity under temperature, elongation percentage can reach 40-60%.During preparing jewellery, deflection can reach 50% and not have to
Intermediate annealing.Due to improving mechanical property, thus processing efficiency and rejection rate substantially reduce.The billon makes crystal grain obtain carefully
Change.In addition, the alloy have low liquid-solid phase solidification temperature range, can solve casting when hot cracking tendency it is big, casting cavity and
The low equal technical barriers of loose apparent product yield rate.Smelting processing method is simple, and production cost is relatively low, reduces and is wanted to equipment
It asks.
Claims (3)
1. a kind of not argentiferous 10K of resistance to brittle failure rose golds；According to weight percent, the ingredient of the alloy is: Ba:0.2-
0.4wt.%,Zr:0.3-0.5wt.%,Pd:1.0-1.5wt.%,Mo:0.3-0.5wt.%,In:25.0-30.0wt.%,Au:
40.0-42.0wt.%, surplus are copper.
2. the not argentiferous 10K of resistance to brittle failure rose golds described in claim 1, it is characterised in that including following smelting step：To as above it match
The raw material of ratio is added in the electric induction furnace of argon gas protection, and uses graphite crucible;The argon gas of low discharge is used after metal molten
Protection, avoids big air-flow from making the serious scaling loss of alloying element;10 minutes are kept the temperature at 1150 degree when melting, leans on Efco-Northrup furnace electromagnetism
It stirs evenly;1 minute being kept the temperature at 1250 degree after stirring evenly and being cast come out of the stove;Billon casting is using diameter 100-200mm's
Punching block, and cooled down by the way of water cooling.
3. according to the not argentiferous 10K of resistance to brittle failure rose golds described in claim 1, it is characterised in that comprising using step as follows：By gained
Ingot casting rolled at room temperature, every time roll lower amount be 30-40%;It is 680 degree per intermediate anneal temperature after rolling twice,
Heat preservation 0.5 hour;Material is finally rolled into the golden plate that thickness is 10-20mm;In jewellery forming process, need to carry out intermediate
Annealing eliminates the stress in process;Wherein, homogenization temperature is 800 degree, and the time is 1-2 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810662278.3A CN108754284A (en) | 2018-06-25 | 2018-06-25 | A kind of not the argentiferous 10K of resistance to brittle failure rose golds and its processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810662278.3A CN108754284A (en) | 2018-06-25 | 2018-06-25 | A kind of not the argentiferous 10K of resistance to brittle failure rose golds and its processing technology |
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| Publication Number | Publication Date |
|---|---|
| CN108754284A true CN108754284A (en) | 2018-11-06 |
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ID=63976950
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810662278.3A Withdrawn CN108754284A (en) | 2018-06-25 | 2018-06-25 | A kind of not the argentiferous 10K of resistance to brittle failure rose golds and its processing technology |
Country Status (1)
| Country | Link |
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2018
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Application publication date: 20181106 |