CN108823457A - The low gold content jewellery of resistance to brittle failure no nickel K14 platinum and its technique - Google Patents
The low gold content jewellery of resistance to brittle failure no nickel K14 platinum and its technique Download PDFInfo
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- CN108823457A CN108823457A CN201810773658.4A CN201810773658A CN108823457A CN 108823457 A CN108823457 A CN 108823457A CN 201810773658 A CN201810773658 A CN 201810773658A CN 108823457 A CN108823457 A CN 108823457A
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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 the low gold content jewellery of resistance to brittle failure no nickel K14 platinum and its technique.According to weight percent, the ingredient of the alloy is:Li:0.8-1.2wt.%,Cr:1.5-1.8wt.%,Mn:1.2-1.4wt.%,Ag:8.0-12.0wt.%,In:16.0-20.0wt.%,Au:57.0-59.0wt.%, surplus are tin.The patent solves in current K platinum generally containing the nickel element that can make us generating allergy.By the not nickeliferous human body friendly K platinum material 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 technique
One of the characteristics of gold is exactly softness, so being difficult to inlay the style for producing 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 various 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 of karat gold material, 18K and 14K be it is 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 handsel：Red, red, yellow, faint yellow, dark yellow partially.
There are 6 kinds in 14K handsel：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 the value preserving of the white gloss due to having platinum and gold, K
Platinum after the advent of just obtained great market and welcome, and worldwide achieve the very big market sales volume.
According to foreign media, most women for wearing alloy earrings are easy to appear 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
The 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 without nickel billon have it is 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 very big market value is had 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 fields of China's jewellery industry survival and development
Development trend.Briefly, it is broken through by technological innovation and optimization design and restricts the production of China 18K platinum and use development
Bottleneck.
Summary of the invention
The purpose of the present invention is to overcome the deficiency in the prior art, provides the low gold content jewellery of resistance to brittle failure with no nickel K14 platinum
And its technique.
To achieve the goals above, the present invention adopts the following technical scheme that：
The low gold content jewellery of resistance to brittle failure no nickel K14 platinum and its technique.By weight percentage, the group of alloy becomes Li:
0.8-1.2wt.%,Cr:1.5-1.8wt.%,Mn:1.2-1.4wt.%,Ag:8.0-12.0wt.%,In:16.0-20.0wt.%,
Au:57.0-59.0wt.%, surplus are tin.
The no nickel K14 platinum of the above-mentioned low gold content jewellery of resistance to brittle failure and its preparation method of technique, include the following steps：It will
As above the raw material matched is added in the electric induction furnace of argon gas protection, and uses graphite crucible;Low discharge is used after metal molten
Argon gas protection, avoid big air-flow from making the serious scaling loss of alloying element;10 minutes are kept the temperature at 1200 degree when melting, leans on high-frequency induction
Furnace electromagnetic agitation is uniform;1 minute, which is kept the temperature, at 1200 degree after mixing evenly and is cast comes out of the stove;Billon casting uses diameter 50-
The punching block of 100mm, and cooled down by the way of water cooling.Resulting ingot casting is rolled at room temperature, rolling lower amount per pass is
30-40%;It is 380 degree per intermediate anneal temperature after rolling twice, keeps the temperature 0.5 hour;Finally material is rolled into a thickness of 10-
The golden plate of 20mm;It in jewellery forming process, needs to carry out intermediate annealing process, eliminates the stress in process;Wherein,
Homogenizing temperature is 350 degree, and the time is 1-2 hours.
Compared with prior art, the present invention has the advantages that：
（1）Traditional 14K platinum material ingredient is also uncomplicated, but dendritic segregation is serious after being poured, 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 after use or fades.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 for a long time used in K platinum increase jewellery brightness metal, be in K platinum can not or
Scarce composition.Nickel is traditionally exactly the brightening agent of gold, is generally acknowledged that in field of jewelry people when the ingredient of nickel is in 9-
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
Golden 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）Since common nickeliferous 14K platinum is all in the composition range that can be formed with sequence structure, casting
In cooling procedure in cooling procedure afterwards, or after welding, in addition edge stone on sealing wax cooling procedure in, be likely to
It is formed with sequence structure and increases the brittleness of material, so that being carried out in casting last handling process to gadget, slightly by external force
Or impact may cause gadget to be broken, and bring very big puzzlement and difficulty to jewellery production.The material new design of this alloy can
To greatly reduce the process of ordering in cooling down or later use process, thus it can process and use
Cheng Zhong（In 10 years）It is avoided completely because of material brittle failure caused by the process of ordering of alloy.And the alloy is when having prolonged
Imitate stability.
（4）The material has and nickeliferous K platinum similarly white color and good physical property, cheap price, compared with
Low liquidus temperature, good mechanical 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 furthermore the ingredient of alloy can to close
Gold obtains tiny crystal grain after casting and forging.In addition, hot cracking tendency is big when the alloy can solve casting, casting cavity and
The technical problems such as loose obvious product yield rate is low.Smelting processing method is simple, and production cost is relatively low, reduces and wants to equipment
It asks.
（5）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 more stable.Alloy corrosion rate under maritime environment is 1.810-4Mm/,
Thus using the jewellery of material preparation under relevant environment using 10 in be still able to maintain and original can match in excellence or beauty with platinum white
Quality 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
Different economic benefit and social benefit.
Specific embodiment
Embodiment 1
The low gold content jewellery of resistance to brittle failure no nickel K14 platinum and its technique.By weight percentage, the group of alloy becomes Li:0.8
wt.%,Cr:1.5wt.%,Mn:1.2wt.%,Ag:8.0wt.%,In:16.0wt.%,Au:57.0wt.%, surplus are tin.It is above-mentioned low
The gold content jewellery of resistance to brittle failure no nickel K14 platinum and its technique, include the following steps：As above the raw material matched is added to argon gas
In the electric induction furnace of protection, and use graphite crucible;It is protected after metal molten 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;After mixing evenly
1 minute, which is kept the temperature, at 1200 degree and is cast comes out of the stove;Billon casting uses the punching block of diameter 50-100mm, and by the way of water cooling
Cooling.Resulting ingot casting is rolled at room temperature, rolling lower amount per pass is 30-40%;Per intermediate annealing temperature after rolling twice
Degree is 380 degree, keeps the temperature 0.5 hour;Material is finally rolled into the golden plate with a thickness of 10-20mm;In jewellery forming process, need
Intermediate annealing process is carried out, the stress in process is eliminated;Wherein, homogenization temperature is 350 degree, and the time is 1-2 hours.
This due to avoiding the addition of nickel from ingredient, and can also obtain excellent platinum without nickel 14K platinum alloy simultaneously
White as gold, thus be an innovative product for field of jewelry.The material has same with nickeliferous K platinum
White color and good physical property, cheap price, lower liquidus temperature, good mechanical 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, furthermore the ingredient of alloy can make alloy obtain tiny crystal grain after casting and forging.This alloy
Material new design can greatly reduce the process of ordering in cooling down or later use process, thus can be with
In the process of processing and using（In 10 years）It is avoided completely because of material brittle failure caused by the process of ordering of alloy.And the alloy
Has prolonged aging stability.For the alloy when carrying out alloying component and performance optimizes, the screening of alloying component is first
First from the point of view of Electrochemical Corrosion Mechanism, select the alloying element being added in billon that can form passivating film on surface,
To play a protective role to ambient enviroment corrosion.Thus used in 10 still under relevant environment using the jewellery of material preparation
It is able to maintain original quality that can be matched in excellence or beauty with platinum white, is shown to the extremely huge corrosion resistance of environment.
Embodiment 2
The low gold content jewellery of resistance to brittle failure no nickel K14 platinum and its technique.By weight percentage, the group of alloy becomes Li:
1.2wt.%,Cr:1.8wt.%,Mn:1.4wt.%,Ag:12.0wt.%,In:20.0wt.%,Au:59.0wt.%, surplus are tin.On
The low gold content jewellery of resistance to brittle failure no nickel K14 platinum and its technique are stated, is included the following steps：As above the raw material matched is added to
In the electric induction furnace of argon gas protection, and use graphite crucible;It is protected after metal molten using the argon gas of low discharge, avoids big gas
Stream makes 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;Stirring is equal
1 minute, which is kept the temperature, at 1200 degree after even and is cast comes out of the stove;Billon casting uses the punching block of diameter 50-100mm, and using water cooling
Mode cools down.Resulting ingot casting is rolled at room temperature, rolling lower amount per pass is 30-40%;It is moved back per intermediate after rolling twice
Fiery temperature is 380 degree, keeps the temperature 0.5 hour;Material is finally rolled into the golden plate with a thickness of 10-20mm;In jewellery forming process
In, it needs to carry out intermediate annealing process, eliminates the stress in process;Wherein, homogenization temperature is 350 degree, time 1-2
Hour.
This due to avoiding the addition of nickel from ingredient, and can also obtain excellent platinum without nickel 14K platinum alloy simultaneously
White as gold, thus be an innovative product for field of jewelry.The material has same with nickeliferous K platinum
White color and good physical property, cheap price, lower liquidus temperature, good mechanical 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, furthermore the ingredient of alloy can make alloy obtain tiny crystal grain after casting and forging.This alloy
Material new design can greatly reduce the process of ordering in cooling down or later use process, thus can be with
In the process of processing and using（In 10 years）It is avoided completely because of material brittle failure caused by the process of ordering of alloy.And the alloy
Has prolonged aging stability.For the alloy when carrying out alloying component and performance optimizes, the screening of alloying component is first
First from the point of view of Electrochemical Corrosion Mechanism, select the alloying element being added in billon that can form passivating film on surface,
To play a protective role to ambient enviroment corrosion.Thus used in 10 still under relevant environment using the jewellery of material preparation
It is able to maintain original quality that can be matched in excellence or beauty with platinum white, is shown to the extremely huge corrosion resistance of environment.
Embodiment 3
The low gold content jewellery of resistance to brittle failure no nickel K14 platinum and its technique.By weight percentage, the group of alloy becomes Li:
0.9wt.%,Cr:1.6wt.%,Mn:1.3wt.%,Ag:9.0wt.%,In:18.0wt.%,Au:58.0wt.%, surplus are tin.On
The low gold content jewellery of resistance to brittle failure no nickel K14 platinum and its technique are stated, is included the following steps：As above the raw material matched is added to
In the electric induction furnace of argon gas protection, and use graphite crucible;It is protected after metal molten using the argon gas of low discharge, avoids big gas
Stream makes 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;Stirring is equal
1 minute, which is kept the temperature, at 1200 degree after even and is cast comes out of the stove;Billon casting uses the punching block of diameter 50-100mm, and using water cooling
Mode cools down.Resulting ingot casting is rolled at room temperature, rolling lower amount per pass is 30-40%;It is moved back per intermediate after rolling twice
Fiery temperature is 380 degree, keeps the temperature 0.5 hour;Material is finally rolled into the golden plate with a thickness of 10-20mm;In jewellery forming process
In, it needs to carry out intermediate annealing process, eliminates the stress in process;Wherein, homogenization temperature is 350 degree, time 1-2
Hour.
This due to avoiding the addition of nickel from ingredient, and can also obtain excellent platinum without nickel 14K platinum alloy simultaneously
White as gold, thus be an innovative product for field of jewelry.The material has same with nickeliferous K platinum
White color and good physical property, cheap price, lower liquidus temperature, good mechanical 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, furthermore the ingredient of alloy can make alloy obtain tiny crystal grain after casting and forging.This alloy
Material new design can greatly reduce the process of ordering in cooling down or later use process, thus can be with
In the process of processing and using（In 10 years）It is avoided completely because of material brittle failure caused by the process of ordering of alloy.And the alloy
Has prolonged aging stability.For the alloy when carrying out alloying component and performance optimizes, the screening of alloying component is first
First from the point of view of Electrochemical Corrosion Mechanism, select the alloying element being added in billon that can form passivating film on surface,
To play a protective role to ambient enviroment corrosion.Thus used in 10 still under relevant environment using the jewellery of material preparation
It is able to maintain original quality that can be matched in excellence or beauty with platinum white, is shown to the extremely huge corrosion resistance of environment.
Claims (3)
1. the low gold content jewellery of resistance to brittle failure no nickel K14 platinum and its technique；According to weight percent, the ingredient of the alloy is:
Li:0.8-1.2wt.%,Cr:1.5-1.8wt.%,Mn:1.2-1.4wt.%,Ag:8.0-12.0wt.%,In:16.0-
20.0wt.%,Au:57.0-59.0wt.%, surplus are tin.
2. the low gold content jewellery of resistance to brittle failure described in claim 1 no nickel K14 platinum 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, which is kept the temperature, at 1200 degree after mixing evenly and is cast comes 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 the low gold content jewellery of resistance to brittle failure described in claim 1 no nickel K14 platinum and its technique, it is characterised in that comprising such as
It is lower to use step：Resulting ingot casting is rolled at room temperature, rolling lower amount per pass is 30-40%;Per intermediate after rolling twice
Annealing temperature is 380 degree, keeps the temperature 0.5 hour;Material is finally rolled into the golden plate with a thickness of 10-20mm;It was formed 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 |
|---|---|---|---|
| CN201810773658.4A CN108823457A (en) | 2018-07-15 | 2018-07-15 | The low gold content jewellery of resistance to brittle failure no nickel K14 platinum and its technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810773658.4A CN108823457A (en) | 2018-07-15 | 2018-07-15 | The low gold content jewellery of resistance to brittle failure no nickel K14 platinum and its technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108823457A true CN108823457A (en) | 2018-11-16 |
Family
ID=64137348
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810773658.4A Withdrawn CN108823457A (en) | 2018-07-15 | 2018-07-15 | The low gold content jewellery of resistance to brittle failure no nickel K14 platinum and its technique |
Country Status (1)
| Country | Link |
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| CN (1) | CN108823457A (en) |
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2018
- 2018-07-15 CN CN201810773658.4A patent/CN108823457A/en not_active Withdrawn
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Application publication date: 20181116 |