CN108796275A - Low gold content the jewellery corrosion-resistant 14K platinum of no nickel and its technique - Google Patents
Low gold content the jewellery corrosion-resistant 14K platinum of no nickel and its technique Download PDFInfo
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- CN108796275A CN108796275A CN201810773660.1A CN201810773660A CN108796275A CN 108796275 A CN108796275 A CN 108796275A CN 201810773660 A CN201810773660 A CN 201810773660A CN 108796275 A CN108796275 A CN 108796275A
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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
- C22C5/00—Alloys based on noble metals
- C22C5/02—Alloys based on gold
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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
- 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
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Abstract
The invention discloses low gold content the jewellery corrosion-resistant 14K platinum of no nickel and its technique.By weight percentage, the group of alloy becomes Li:0.5-0.8wt.%,Co:2.5-3.0wt.%,B:1.0-1.4wt.%,Al:8.0-12.0wt.%,In:15.0-18.0wt.%,Au:57.0-59.0wt.%, surplus are tin.The patent solves the nickel element for generally containing in current K platinum and capable of making us generating allergy.By the not nickeliferous human body friendly K platinum materials of the optimization of alloying component and innovative development, the development bottleneck in field of jewelry is effectively breached.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
One of the characteristics of gold is exactly soft, so being difficult to inlay the style for making various finenesses.People are added in gold
For the metals such as a small amount of silver, copper, zinc to increase the intensity and toughness of gold, gold jewellery manufactured in this way is also known as karat gold.Karat gold is gold and its
Alloy made of its metal alloying, feature are to be measured less with gold, is at low cost, and can be configured to a variety of colors, and be unlikely to deform and grind
Damage.By international standard, karat gold is divided into 24 kinds, i.e. 1K to 24K.But, it is less than these as the karat gold type of jewellery, the world is each
The jewellery material that state uses all is not less than 8K.In this way, the karat gold type that actually really can be regarded as jewellery is 17 kinds.This 17
In kind karat gold material, 18K and 14K are most commonly used, it is all main jewellery raw material in various countries' jewellery industry.In China market
Most common 18K gold, gold content 75%.But the increase with jewellery sales volume with the improvement of people ' s living standards, 14K
The demand of gold is also more and more.
In order to enrich the expressive force of various karat golds, foreign countries adjust other alloy proportions in the case where gold content standard is constant
Coefficient, the different karat gold of synthesis color.There are 5 kinds in most common 18K handsels：Red, red, yellow, faint yellow, dark yellow partially.
There are 6 kinds in 14K handsels：Red, reddish yellow, buff, faint yellow, dark yellow, green-yellow.In addition, white karat gold, is also classified into 18K
Platinum and 14K platinum.Strictly speaking, K platinum cannot be referred to as platinum.Since appearance is as platinum, so just occurring quotient in the market
K platinum is said into platinum by family, and consumer is allowed to be mistaken for platinum.Only platinum is just properly termed as platinum, on the market so-called K platinum
It is accurately expressed as the billon of white in fact.For K platinum, nickel is the most important billon that can allow in its composition of alloy
Decorporate itself golden yellow and show the element of similar platinum white.In purity, rare degree, durability and natural color
On gloss, white karat gold can not all be mentioned in the same breath with platinum.But due to having the value preserving of the white gloss of platinum and gold, K
Platinum after the advent of just obtained great market and welcome, and worldwide achieve the prodigious market sales volume.
According to foreign media, most women for wearing alloy earrings are susceptible to pain redness, blister symptom.Coin,
It can also cause allergic reaction after belt joint even telephone set contact skin.Reason is that these articles contain nickel, industry
Most common skin contact allergin in production.Studies have shown that nickel can be attached to a kind of special immune system protein matter
On, during which participates in the harmful invasion substance of body identification.Nickel can trigger a kind of specific proteins in immune system
Immune response, cause the allergic symptoms such as scorching hot, itch, redness.In the internal of impacted people, immune system can nickel as
A kind of infectious substance, when immune system response is too drastic, body just will appear a series of classical symptoms, such as it is scorching hot, itch, be red
Swollen, blister etc..A series of biochemical reaction can be caused, blood flow increase, tissue leakage, immunocyte is caused to pour in,
Ultimately form infection.
Thus, in jewellery industry, exploitation and industrialization it is a kind of with K platinum color and lusters without nickel billon with extremely existing
Real market significance.It can be by the thermodynamics and kinetics means of bottom to alloy material by advanced design of material technology
Material is innovated, and has prodigious market value to industrialization.It, must in face of the domestic and international market competition being growing more intense
Must accelerate restructuring paces, this is not only the needs and world today's related field of China's jewellery industry survival and development
Development trend.Briefly, 18K platinum production in China's is restricted and using development to break through by technological innovation and optimization design
Bottleneck.
Invention content
The purpose of the present invention is to overcome the deficiency in the prior art, provides the low gold content jewellery corrosion-resistant 14K platinum of no nickel
And its technique.
To achieve the goals above, the present invention adopts the following technical scheme that：
Low gold content the jewellery corrosion-resistant 14K platinum of no nickel and its technique.By weight percentage, the group of alloy becomes Li:
0.5-0.8wt.%,Co:2.5-3.0wt.%,B:1.0-1.4wt.%,Al:8.0-12.0wt.%,In:15.0-18.0wt.%,Au:
57.0-59.0wt.%, surplus are tin.
Above-mentioned low gold content the jewellery corrosion-resistant 14K platinum of no nickel and its technique.Preparation method, include the following steps：
As above the raw material matched is added in the electric induction furnace of argon gas protection, and uses graphite crucible;Low stream is used after metal molten
The argon gas of amount 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, leans on high frequency sense
Answer stove electromagnetic agitation 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 50-
The punching block of 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 and is
30-40%;It is 380 degree per intermediate anneal temperature after rolling twice, keeps the temperature 0.5 hour;It is 10- that material, which is finally rolled into thickness,
The golden plate of 20mm;In jewellery forming process, needs to carry out intermediate annealing process, eliminate the stress in process;Wherein,
It is 350 degree to homogenize temperature, and the time is 1-2 hours.
Compared with prior art, the present invention has the advantages that：
（1）Traditional 14K platinum material ingredients are also uncomplicated, but dendritic segregation is serious after pouring into a mould, and is unfavorable for its processing performance
With corrosion resistance.Homogenization Treatments must be carried out before processing, corrosion resistance when causing the cumbersome of process and using
It is insufficient.Thus, the phenomenon that 14K platinum just has decoloration in 1-2 or fades after use.The alloy of this patent is carrying out
When alloying component and performance optimize, first from the point of view of Electrochemical Corrosion Mechanism, selection adds for the screening of alloying component
Passivating film can be formed on surface by entering the alloying element into billon, to play a protective role to ambient enviroment corrosion.
（2）Nickel be used in K platinum for a long time increase jewellery brightness metal, be in K platinum can not or
Scarce composition.Nickel is exactly traditionally the brightening agent of gold, is generally acknowledged that the ingredient when nickel in 9- in field of jewelry people
12wt.% is obtained with the alloy close to white.But the addition of nickel is but also jewellery have with K platinum to human allergy's
Anaphylactogen.Groups of people are after wearing has changed jewellery, it may appear that apparent allergic phenomena.Present patent application is protected white without nickel 14K
Gold alloy due to avoiding the addition of nickel from ingredient, and can also obtain the white as excellent platinum simultaneously, thus for
It is an innovative product for field of jewelry.
（3）The material has and nickeliferous K platinum similarly white color and luster and good physical property, cheap price, compared with
Low liquidus temperature, good machinery and casting character and good bleaching effect.It is a kind of more satisfactory nickeliferous white
The substitute of coloured gold alloy.The alloy is suitable for casting since liquidus curve is relatively low, and the ingredient of alloy can to close in addition
Gold obtains tiny crystal grain after casting and forging.In addition, the alloy 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.
（4）The aerial corrosion resistance of the alloy belongs to compared with stabilizing material, belongs to stable type in weak acid, weak base sweat
Material, corrosion resistance is by being added the higher alloying element of thermodynamic stability.In corrosive environment, the protection of passivation can be formed
Film, this film is in different media, since unpolarizing is as a result, to show different corrosion resistances, to strong
Acid, the corrosion resistance of strong basicity sweat are also relatively stable.Alloy corrosion rate under maritime environment is 1.210-4Mm/, because
And use the material preparation jewellery under relevant environment using 10 in remain to keep original product that can be matched in excellence or beauty with platinum white
Matter is shown to the extremely huge corrosion resistance of environment.It is contemplated that the implementation and industrialization of the material obtain after all it is excellent
Economic benefit and social benefit.
Specific implementation mode
Embodiment 1
Low gold content the jewellery corrosion-resistant 14K platinum of no nickel and its technique.By weight percentage, the group of alloy becomes Li:
0.5wt.%,Co:2.5wt.%,B:1.0wt.%,Al:8.0wt.%,In:15.0wt.%,Au:57.0wt.%, surplus are tin.It is above-mentioned
The low gold content jewellery corrosion-resistant 14K platinum of no nickel and its preparation method of technique, include the following steps：The original that will as above match
Material is added in the electric induction furnace of argon gas protection, and uses graphite crucible;It is protected, is kept away using the argon gas of low discharge after metal molten
Exempting from big air-flow makes the serious scaling loss of alloying element;10 minutes are kept the temperature at 1200 degree when melting, it is equal by Efco-Northrup furnace electromagnetic agitation
It is even;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
Cooled down by the way of water cooling.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 after system, keeps the temperature 0.5 hour;Material is finally rolled into the golden plate that thickness is 10-20mm;In head
It adorns in forming process, needs to carry out intermediate annealing process, eliminate the stress in process;Wherein, homogenization temperature 350
Degree, time are 1-2 hours.
This due to avoiding the addition of nickel from ingredient, and can also obtain excellent platinum simultaneously without nickel 14K platinum alloys
White as gold, thus be an innovative product for field of jewelry.The material has same with nickeliferous K platinum
White color and luster and good physical property, cheap price, lower liquidus temperature, it is good machinery and casting character and
Good bleaching effect.It is a kind of substitute of more satisfactory nickeliferous white gold alloy.The alloy is relatively low due to liquidus curve
And be suitable for casting, the ingredient of alloy can make alloy obtain tiny crystal grain after casting and forging in addition.The alloy exists
When carrying out alloying component and performance optimization, the screening of alloying component is first from the point of view of Electrochemical Corrosion Mechanism, choosing
Passivating film can be formed on surface by selecting the alloying element being added in billon, to play a protective role to ambient enviroment corrosion.
Thus using the jewellery of the material preparation under relevant environment using 10 in remain to keep original and can match in excellence or beauty with platinum white
Quality is shown to the extremely huge corrosion resistance of environment.
Embodiment 2
Low gold content the jewellery corrosion-resistant 14K platinum of no nickel and its technique.By weight percentage, the group of alloy becomes Li:
0.8wt.%,Co:3.0wt.%,B:1.4wt.%,Al:12.0wt.%,In:18.0wt.%,Au:59.0wt.%, surplus are tin.On
The low gold content jewellery corrosion-resistant 14K platinum of no nickel and its preparation method of technique are stated, is included the following steps：By what is as above matched
Raw material is added in the electric induction furnace of argon gas protection, and uses graphite crucible;It is protected using the argon gas of low discharge after metal molten,
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, leans on Efco-Northrup furnace electromagnetic agitation
Uniformly;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 cooled down by the way of water cooling.The ingot casting of gained is rolled at room temperature, it is 30-40% that every time, which rolls lower amount,;Per twice
Intermediate anneal temperature is 380 degree after rolling, keeps the temperature 0.5 hour;Material is finally rolled into the golden plate that thickness is 10-20mm;?
In jewellery forming process, needs to carry out intermediate annealing process, eliminate the stress in process;Wherein, homogenization temperature 350
Degree, time are 1-2 hours.
This due to avoiding the addition of nickel from ingredient, and can also obtain excellent platinum simultaneously without nickel 14K platinum alloys
White as gold, thus be an innovative product for field of jewelry.The material has same with nickeliferous K platinum
White color and luster and good physical property, cheap price, lower liquidus temperature, it is good machinery and casting character and
Good bleaching effect.It is a kind of substitute of more satisfactory nickeliferous white gold alloy.The alloy is relatively low due to liquidus curve
And be suitable for casting, the ingredient of alloy can make alloy obtain tiny crystal grain after casting and forging in addition.The alloy exists
When carrying out alloying component and performance optimization, the screening of alloying component is first from the point of view of Electrochemical Corrosion Mechanism, choosing
Passivating film can be formed on surface by selecting the alloying element being added in billon, to play a protective role to ambient enviroment corrosion.
Thus using the jewellery of the material preparation under relevant environment using 10 in remain to keep original and can match in excellence or beauty with platinum white
Quality is shown to the extremely huge corrosion resistance of environment.
Embodiment 3
Low gold content the jewellery corrosion-resistant 14K platinum of no nickel and its technique.By weight percentage, the group of alloy becomes Li:
0.6wt.%,Co:2.8wt.%,B:1.2wt.%,Al:9.0wt.%,In:16.0wt.%,Au:58.0wt.%, surplus are tin.It is above-mentioned
The low gold content jewellery corrosion-resistant 14K platinum of no nickel and its preparation method of technique, include the following steps：The original that will as above match
Material is added in the electric induction furnace of argon gas protection, and uses graphite crucible;It is protected, is kept away using the argon gas of low discharge after metal molten
Exempting from big air-flow makes the serious scaling loss of alloying element;10 minutes are kept the temperature at 1200 degree when melting, it is equal by Efco-Northrup furnace electromagnetic agitation
It is even;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
Cooled down by the way of water cooling.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 after system, keeps the temperature 0.5 hour;Material is finally rolled into the golden plate that thickness is 10-20mm;In head
It adorns in forming process, needs to carry out intermediate annealing process, eliminate the stress in process;Wherein, homogenization temperature 350
Degree, time are 1-2 hours.
This due to avoiding the addition of nickel from ingredient, and can also obtain excellent platinum simultaneously without nickel 14K platinum alloys
White as gold, thus be an innovative product for field of jewelry.The material has same with nickeliferous K platinum
White color and luster and good physical property, cheap price, lower liquidus temperature, it is good machinery and casting character and
Good bleaching effect.It is a kind of substitute of more satisfactory nickeliferous white gold alloy.The alloy is relatively low due to liquidus curve
And be suitable for casting, the ingredient of alloy can make alloy obtain tiny crystal grain after casting and forging in addition.The alloy exists
When carrying out alloying component and performance optimization, the screening of alloying component is first from the point of view of Electrochemical Corrosion Mechanism, choosing
Passivating film can be formed on surface by selecting the alloying element being added in billon, to play a protective role to ambient enviroment corrosion.
Thus using the jewellery of the material preparation under relevant environment using 10 in remain to keep original and can match in excellence or beauty with platinum white
Quality is shown to the extremely huge corrosion resistance of environment.
Claims (3)
1. low gold content the jewellery corrosion-resistant 14K platinum of no nickel and its technique；According to weight percent, the ingredient of the alloy is:
Li:0.5-0.8wt.%,Co:2.5-3.0wt.%,B:1.0-1.4wt.%,Al:8.0-12.0wt.%,In:15.0-18.0wt.%,
Au:57.0-59.0wt.%, surplus are tin.
2. low gold content jewellery described in the claim 1 corrosion-resistant 14K platinum of no nickel and its technique, it is characterised in that including as follows
Smelting step：As above the raw material matched is added in the electric induction furnace of argon gas protection, and uses graphite crucible;After metal molten
It is protected using the argon gas of low discharge, 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,
It is uniform by Efco-Northrup furnace electromagnetic agitation;1 minute being kept the temperature at 1200 degree after stirring evenly and being cast come out of the stove;Billon casting uses
The punching block of diameter 50-100mm, and cooled down by the way of water cooling.
3. according to low gold content jewellery described in the claim 1 corrosion-resistant 14K platinum of no nickel and its technique, it is characterised in that comprising such as
It is lower to use step：The ingot casting of gained is rolled at room temperature, it is 30-40% that every time, which rolls lower amount,;Per intermediate after rolling twice
Annealing temperature is 380 degree, keeps the temperature 0.5 hour;Material is finally rolled into the golden plate that thickness is 10-20mm;It was molded in jewellery
Cheng Zhong needs to carry out intermediate annealing process, eliminates the stress in process;Wherein, homogenization temperature is 350 degree, and the time is
1-2 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810773660.1A CN108796275A (en) | 2018-07-15 | 2018-07-15 | Low gold content the jewellery corrosion-resistant 14K platinum of no nickel and its technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810773660.1A CN108796275A (en) | 2018-07-15 | 2018-07-15 | Low gold content the jewellery corrosion-resistant 14K platinum of no nickel and its technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108796275A true CN108796275A (en) | 2018-11-13 |
Family
ID=64076612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810773660.1A Withdrawn CN108796275A (en) | 2018-07-15 | 2018-07-15 | Low gold content the jewellery corrosion-resistant 14K platinum of no nickel and its technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108796275A (en) |
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2018
- 2018-07-15 CN CN201810773660.1A patent/CN108796275A/en not_active Withdrawn
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Application publication date: 20181113 |
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