CN1055561A - Ledeburite alloy (lai ke jin) - Google Patents
Ledeburite alloy (lai ke jin) Download PDFInfo
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- CN1055561A CN1055561A CN 90102834 CN90102834A CN1055561A CN 1055561 A CN1055561 A CN 1055561A CN 90102834 CN90102834 CN 90102834 CN 90102834 A CN90102834 A CN 90102834A CN 1055561 A CN1055561 A CN 1055561A
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Abstract
The present invention is a kind of copper base alloy of imitative gold, adopt zinc or plumbous as the alloy tinting material, and mix metals such as people's indium, lead, tin, manganese, silicon, nickel, iron, smelt and become not contain precious metal, the gold look true to nature is and stable, the imitative gold look fancy alloy that erosion resistance, mechanical property and processing characteristics are all more excellent.Ledeburite alloy (Lai Ke Jin) of the present invention can be widely used in ornaments such as making jewellery, spectacle frame, metal handicrafts, is that a kind of cost is low, the fancy alloy that practical value is high.
Description
The present invention relates to a kind of copper base alloy of imitative gold.
Except that color is bordering on gold, also require its erosion resistance, mechanical property and processing characteristics good as ornamental imitative gold copper base alloy.Contain 30% weight percent zinc, all the other are that the brass alloys of copper can use as decorating gold look material, but its erosion resistance and mechanical property etc. can not meet the demands.The special public clear 60-177147 of Japanese Patent " decorating with gold look copper alloy " discloses the decoration gold look alloy of a kind of erosion resistance and better mechanical property.It is mainly by aluminium: 2-10% weight percent, iron: 0.1-5% weight percent, manganese: 0.1-2% weight percent, nickel: 0.1-2% weight percent, precious metal: 0.01-1.8% weight percent, copper: the alloy that surplus is formed.In this imitative gold look copper base alloy,, can on alloy surface, form the oxide film of stable chemical performance, thereby improve its Corrosion Protection owing to added aluminium; Adding iron can improve the tensile strength and the unit elongation of alloy; Adding nickel and manganese also can suitably improve erosion resistance, intensity and the unit elongation of alloy; In addition, the adding of precious metal (gold and silver, platinum, iridium, ruthenium, rhodium, palladium, osmium) has improved the corrosion resisting property of decorating with gold look copper alloy greatly.Therefore, this is a kind of the decoration preferably with gold look copper alloy.Yet owing to contain precious metal in this alloy, cost is higher, and imitative gold look also owes true to nature.In order to save valuable precious metal resource, low cost of manufacture, corrosion resistance and good, the imitative gold look alloy that mechanical property and processing characteristics are all more excellent, the invention provides a kind of imitative gold look more true to nature, and stable Ledeburite alloy (Lai Ke Jin) (Like Gold).
The objective of the invention is, adopt brass to smelt and processing technology, with electrolytic copper and other metal: zinc, aluminium, indium, lead, tin, manganese, silicon, iron, nickel are raw material, it is colour-stable and true to nature that gold is processed in smelting, solidity to corrosion, mechanical property, processing characteristics are all more excellent, Ledeburite alloy (Lai Ke Jin) with low cost.
In brief, the present invention has at length analyzed various elements in copper base alloy after the role, adopt Ledeburite alloy (Lai Ke Jin) component of the present invention and the decoration made with gold look copper base alloy, can satisfy the service requirements of the imitative gold material in multiple field.The smelting of Ledeburite alloy (Lai Ke Jin) of the present invention, processing, heat treating method are analogous to brass, and the smelting of different component Ledeburite alloy (Lai Ke Jin)s is slightly different.Be described in detail the not same-action of each element in copper base alloy of the present invention below.
Zinc is the agent of gold chromatic colorant in this alloy, is Ledeburite alloy (Lai Ke Jin) to copper-zinc-indium, and zinc content is less than 4% weight percent, and alloy does not become the gold look, and content is greater than 45% weight percent, and the alloy color bleaches, and has embrittlement to separate out mutually; To copper-aluminium-indium is Ledeburite alloy (Lai Ke Jin), and zinc is a kind of gold colour toners in copper-aluminium alloy, can make the gold look comparatively true to nature, but to the corrosion stability of alloy disadvantageous effect slightly, general zincification not, and high-content must not surpass 2% weight percent; Aluminium is gold chromatic colorant agent in another in alloy, and can be at the densification of alloy surface generating structure, gold look oxide film that chemical property is stable, anti-oxidant, the erosion resistance of alloy both can have been improved, can increase yellow golden verisimilitude again, aluminum content is less than 2% weight percent, do not become the gold look, content has embrittlement to separate out mutually greater than 10% weight percent; Indium can improve erosion resistance, resistance of oxidation greatly in Ledeburite alloy (Lai Ke Jin) of the present invention, and make the alloy structure exquisiteness, and presenting similar precious metal gloss, content is not obvious less than 0.5% weight percent effect, content has embrittlement to separate out mutually greater than 18% weight percent, and makes the alloy albefaction; The plumbous free cutting property that can improve alloy, the alloy that this performance is not had a particular requirement is leading not, and content can reduce alloy plasticity and corrosion resistance greater than 3.0% weight percent; Add tin in the alloy and can improve intensity and hardness, improve mechanical property, can not add tin when this performance is had particular requirement, when content greater than 5.0% weight percent, the alloy color is tending towards albefaction; Add that manganese can improve the intensity of alloy and hardness and the plasticity that do not reduce alloy, manganese addition not when this performance is not had particular requirement, but content can reduce the corrosion stability of alloy greater than 6.0% weight percent, and make alloy lose its gold look.Add iron and can improve the intensity and the hardness of alloy, can not add iron when this performance is had particular requirement, but content is greater than 2.0% weight percent, alloy becomes fragile, and etch resistant properties reduces; Adding silicon can make the grain refining of alloy, improve the mechanical property and the anti-fatigue performance of alloy, silicon can improve the flowability of liquid alloy in addition, improves its castability, the alloy that above performance is not had particular requirement can not add silicon, becomes fragile but content surpasses 4.0% weight percent alloy; Adding nickel can improve the intensity and the hardness of alloy, and improve the corrosion stability of alloy, but yellow golden verisimilitude is had disadvantageous effect, colour-darkening, so generally can not add nickel, nickel content is greater than 7.0% weight percent, alloy loses the gold look.According to as above experiment, the Ledeburite alloy (Lai Ke Jin) that the present invention makes is as follows:
Ledeburite alloy (Lai Ke Jin)-1, copper-zinc-indium system consists of:
| Component | Zinc | Indium | Plumbous | Tin | Manganese | Iron | Silicon | Nickel | Copper |
| Percentage composition (wt%) | 4－45 | 0.5－18 | 0－3 | 0－5 | 0－6 | 0－2 | 0－4 | 0－7 | Surplus |
Ledeburite alloy (Lai Ke Jin)-2, copper-aluminium-indium system consists of:
| Component | Aluminium | Indium | Zinc | Plumbous | Tin | Manganese | Iron | Silicon | Copper |
| Percentage composition (wt%) | 2－10 | 0.5－18 | 0－2 | 0－3 | 0－5 | 0－6 | 0－2 | 0－4 | Surplus |
The performance of Ledeburite alloy (Lai Ke Jin) is as follows:
Mechanical property:
Soft attitude 600-800 ℃, annealing softening;
Tensile strength: σ=30-40 kilogram/square millimeter;
Unit elongation: δ=35-50%; Brinell hardness: HB=80-100.
Hard attitude 50-80% cold hardening;
Tensile strength: σ=70-80 kilogram/square millimeter;
Unit elongation: δ=2.5-3.5%; Brinell hardness: HB=150-200.
Young's modulus: E=10500-11500 kilogram/square millimeter.
Physicals:
Alloy color: be equivalent to 18-22K gold look;
Alloy proportion: 7.8-8.8 gram/cubic centimetre;
Alloy melting point: 850-950 ℃.
Chemical property:
Alloy nondiscoloration after atmosphere and artificial perspiration test is not corroded, and the result is as follows:
One. atmospheric corrosion test:
Sample is through mechanical polishing, surface smoothness
, be placed in the compartment of Shanghai City, expose air, temperature and humidity changes naturally with atmosphere, and etching time is 1 year.The result: the sample nondiscoloration, do not corrode.
Two. artificial perspiration's corrosion test:
Adopt artificial perspiration's prescription: sodium-chlor (NaCl) 20 grams per liters, urea 3 grams per liters are dissolved in and make solution in the distilled water, and use therein reagent is chemical reagent.During artificial perspiration's corrosion test, with Ledeburite alloy (Lai Ke Jin) sample of the present invention through mechanical polishing, smooth finish
, be immersed in artificial perspiration's solution, keep 20 ℃ of constant temperature, take out after 260 hours.The result: the sample nondiscoloration, do not corrode.
The advantage of Ledeburite alloy (Lai Ke Jin) of the present invention is: do not contain precious metal in the alloy, cost is low.In addition because alloy ingredient can be adjusted, modification, so alloy is except that the gold look more true to nature, stablize, its corrosion resistance nature, mechanical property and processing characteristics are all more excellent; Especially Ledeburite alloy (Lai Ke Jin) of the present invention is except that can be used for deformable material, can also adopt microcast process and plating Ledeburite alloy (Lai Ke Jin)-1 to make product, be a kind of imitative preferably gold look fancy alloy material, can be widely used in and make jewellery, spectacle frame, clock and watch products such as part, metal handicrafts in addition.
Be described in detail the embodiment that meets theme of the present invention below:
Embodiment 1:
Copper-zinc-indium system, Ledeburite alloy (Lai Ke Jin)-1 consists of:
| Component | Zinc | Indium | Tin | Manganese | Nickel | Copper |
| Weight percent (wt%) | 30 | 4 | 0.8 | 2.0 | 1.0 | Surplus |
When adopting as above component, be raw material with electrolytic copper and all the other metals, smelt with the medium-frequency induction furnace that plumbago crucible is housed.Wherein, because the boiling point lower (908 ℃) of zinc is volatile, and content is more, must be earlier with ℃ formation copper-zinc alloy, the intensification then down in furnace temperature≤900 of copper, zinc, add higher component element of fusing point and low melting point component element again, be cast into ingot 1000-1200 ℃ of smelting.The alloy cast ingot content of impurities of making≤0.03 weight percent.This alloy electrodepositable or precision are cast into product, and as deforming alloy, its hot processing temperature is 600-800 ℃, cold deformation≤90%, annealing softening 600-800 ℃, air cooling or water-cooled.
Embodiment 2:
Copper-aluminium-indium system, Ledeburite alloy (Lai Ke Jin)-2 consists of:
| Component | Aluminium | Indium | Zinc | Plumbous | Tin | Copper |
| Weight percent (wt%) | 9 | 3.0 | 1.5 | 1 | 0.5 | Surplus |
Because of zinc content in the alloy little, so needn't be as embodiment 1 form copper-zinc alloys down being less than or equal to 900 ℃ earlier, but before casting 2-5 minute, with interpolation spelter is pressed into and gets final product in the molten bath, other is smelted with embodiment 1.As deforming alloy, owing to add lead, the free cutting property of alloy is good.This alloy also can be used for precision casting, directly casts product.
Embodiment 3:
Copper-aluminium-indium system, Ledeburite alloy (Lai Ke Jin)-2 consists of:
| Component | Aluminium | Indium | Silicon | Iron | Copper |
| Weight percent (wt%) | 8 | 6 | 2 | 0.8 | Surplus |
This alloy smelting, processing, thermal treatment can be used as deforming alloy and use with embodiment 2.After being characterized in adding silicon, the good fluidity of liquid alloy makes cast(ing) surface smooth, is used for precision casting, can cast superior in quality gold look artwork.
Copper-the zinc of other different components-indium is that Ledeburite alloy (Lai Ke Jin)-1 or copper-aluminium-indium are that the smelting, processing, thermal treatment of Ledeburite alloy (Lai Ke Jin)-2 is respectively with embodiment 1 or embodiment 2.
Claims (6)
1, a kind of copper base alloy of imitative gold, zinc in the alloy or aluminium are tinting material, it is characterized in that:
A. be that the imitative gold (jasmine gram gold--1) of tinting material is formed (weight percent wt%) and is with zinc:
Zinc: 4-45; Indium: 0.5-18; Plumbous: 0-3; Tin: 0-5;
Manganese: 0-6; Iron: 0-2; Silicon: 0-4; Nickel: 0-7;
All the other are copper,
B. be that the imitative gold (jasmine gram gold--2) of tinting material is formed (weight percent wt%) and is with aluminium:
Aluminium: 2-10; Indium: 0.5-18; Zinc: 0-2; Plumbous: 0-3;
Tin: 0-5; Manganese: 0-6; Iron: 0-2 silicon: 0-4;
All the other are copper.
2, alloy according to claim 1 is characterized in that alloy mechanical performance is:
Soft attitude 600-800 ℃ annealing softening;
Tensile strength: α=30-40kg/mm;
Unit elongation: δ=35-50%; Brinell hardness: HB=80-100.
Hard attitude: 50-80% cold hardening.
Tensile strength: σ=70-80kg/mm;
Unit elongation: δ=2.5-3.5%; Brinell hardness: HB=150-200.
Elastic modulus E=10500-11500kg/mm.
3, alloy according to claim 1 is characterized in that the alloy process industrial art performance is:
Smelt and pouring temperature: 1000-1200 ℃; Hot processing temperature: 600-800 ℃; Cold deformation≤90%; Annealing softening, air cooling or water-cooled.Contain golden total impurities content≤0.03wt%.
4, alloy according to claim 1 is characterized in that the alloy color is equivalent to, 18-22K gold look; Proportion: 7.8-8.8 gram per centimeter; Molten point: 850-950 ℃.
5, alloy according to claim 1, but it is characterized in that adopting accurate teeming practice direct pouring to become artwork.
6, alloy according to claim 1 is characterized in that with zinc being the imitative gold alloy (Ledeburite alloy (Lai Ke Jin)-1) of tinting material, and available alloy plating method forms alloy layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90102834 CN1055561A (en) | 1990-04-06 | 1990-04-06 | Ledeburite alloy (lai ke jin) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90102834 CN1055561A (en) | 1990-04-06 | 1990-04-06 | Ledeburite alloy (lai ke jin) |
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| CN1055561A true CN1055561A (en) | 1991-10-23 |
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| CN 90102834 Pending CN1055561A (en) | 1990-04-06 | 1990-04-06 | Ledeburite alloy (lai ke jin) |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191404A (en) * | 2010-03-17 | 2011-09-21 | 弗塞尔股份有限公司 | Copper nickel aluminum alloy |
| CN104046835A (en) * | 2014-07-01 | 2014-09-17 | 张家港市佳晟机械有限公司 | Precious metal alloy with high stability |
| US20150044089A1 (en) * | 1998-10-09 | 2015-02-12 | Mitsubishi Shindoh Co., Ltd. | Copper/zinc alloys having low levels of lead and good machinability |
| CN105803296A (en) * | 2016-04-29 | 2016-07-27 | 南京晨光艺术工程有限公司 | Anti-corrosive copper alloy for sculptures |
| CN106011531A (en) * | 2016-06-29 | 2016-10-12 | 南通恒金复合材料有限公司 | Improved copper strip for automobile water tank radiator |
| CN110029247A (en) * | 2019-03-11 | 2019-07-19 | 中南大学 | A kind of high fastness rich gold metal alloy and preparation method |
| CN110396617A (en) * | 2019-08-23 | 2019-11-01 | 深圳市华乐珠宝首饰有限公司 | A kind of white gold alloy and preparation method thereof |
| CN113564412A (en) * | 2021-07-29 | 2021-10-29 | 沈阳造币有限公司 | Novel easily-processed gold-like copper alloy and preparation method thereof |
-
1990
- 1990-04-06 CN CN 90102834 patent/CN1055561A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150044089A1 (en) * | 1998-10-09 | 2015-02-12 | Mitsubishi Shindoh Co., Ltd. | Copper/zinc alloys having low levels of lead and good machinability |
| CN102191404A (en) * | 2010-03-17 | 2011-09-21 | 弗塞尔股份有限公司 | Copper nickel aluminum alloy |
| CN104046835A (en) * | 2014-07-01 | 2014-09-17 | 张家港市佳晟机械有限公司 | Precious metal alloy with high stability |
| CN105803296A (en) * | 2016-04-29 | 2016-07-27 | 南京晨光艺术工程有限公司 | Anti-corrosive copper alloy for sculptures |
| CN106011531A (en) * | 2016-06-29 | 2016-10-12 | 南通恒金复合材料有限公司 | Improved copper strip for automobile water tank radiator |
| CN110029247A (en) * | 2019-03-11 | 2019-07-19 | 中南大学 | A kind of high fastness rich gold metal alloy and preparation method |
| CN110029247B (en) * | 2019-03-11 | 2021-02-23 | 中南大学 | High-discoloration-resistance golden brass alloy and preparation method thereof |
| CN110396617A (en) * | 2019-08-23 | 2019-11-01 | 深圳市华乐珠宝首饰有限公司 | A kind of white gold alloy and preparation method thereof |
| CN110396617B (en) * | 2019-08-23 | 2021-02-26 | 深圳市华乐珠宝首饰有限公司 | White gold alloy and preparation method thereof |
| CN113564412A (en) * | 2021-07-29 | 2021-10-29 | 沈阳造币有限公司 | Novel easily-processed gold-like copper alloy and preparation method thereof |
| CN113564412B (en) * | 2021-07-29 | 2022-05-27 | 沈阳造币有限公司 | Easily-processed gold-like copper alloy and preparation method thereof |
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