CN106702202B - A kind of hard pure gold and preparation method thereof - Google Patents
A kind of hard pure gold and preparation method thereof Download PDFInfo
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- CN106702202B CN106702202B CN201510772694.5A CN201510772694A CN106702202B CN 106702202 B CN106702202 B CN 106702202B CN 201510772694 A CN201510772694 A CN 201510772694A CN 106702202 B CN106702202 B CN 106702202B
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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
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- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
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Abstract
The invention discloses a kind of rigid pure golds, are grouped as by following group, thousand 950-1050 parts of pure golds, and 6.65-7.35 parts of yttrium powder, 0.475-0.525 parts of boron powder, 0.76-0.84 parts of neodymium powder, 0.19-0.21 parts of carbon dust, 0.19-0.22 parts of zirconium powder.The rigid pure gold thousand pure golds hardness large increase more in the prior art, more easily processes, after the products such as jewellery are made, are unlikely to deform, wear, and has good plasticity.Also disclose a kind of preparation method of rigid pure gold, comprising the following steps: 1) mix yttrium powder, boron powder, neodymium powder, carbon dust and zirconium powder with thousand pure gold blocks；2) so that the mixture in step 1) is in vacuum state, then pass to argon gas；3) thousand pure gold fusing points or more are warming up to and are kept the temperature, thousand pure golds are melted；4) cool down and keep the temperature, then thousand pure golds for being added to yttrium powder, boron powder, neodymium powder, carbon dust and zirconium powder are cooled and shaped, obtain rigid pure gold.Preparation process, the equipment of the rigid pure gold are simple, and thousand pure golds hardness obtained significantly improves, and coloration, corrosion resisting property are almost unchanged.
Description
Technical field
The invention belongs to gold manufacturing technology field, a kind of hard pure gold and preparation method thereof is related in particular to.
Background technique
Gold is not only used for the special currency laid in and invested as a kind of noble metal, while being jewellery industry, electronics again
The important materials of the departments such as industry, modern communications, aerospace.Thousand pure golds are the gold that thousand score of gold content is not less than 999, due to
It is with high purity and is favored by people, but it also has quality soft (Vickers hardness HV62), it is difficult to the shortcomings that processing, simultaneously
Because hardness is low, it is easy to be delineated by foreign object, is not easy to keep fine and smooth decorative pattern and cause jewellery etc. to be damaged, it is also easily-deformable or drawn
It is disconnected.
Therefore in order to meet the needs of people are to thousand solid gold jewelries, various processing conditions can be met, be unlikely to deform, grind
Damaging while having good moulding is current urgent problem to be solved.
Summary of the invention
For this purpose, technical problem to be solved by the present invention lies in existing thousand pure golds hardness is low, easy to wear, deformation, damage, no
Easy processing, to propose a kind of hard pure gold and preparation method thereof.
In order to solve the above technical problems, the technical solution of the present invention is as follows:
The present invention provides a kind of hard pure gold, and in parts by weight, the rigid pure gold is grouped as by following group, thousand pure golds
950-1050 parts, 6.65-7.35 parts of yttrium powder, 0.475-0.525 parts of boron powder, 0.76-0.84 parts of neodymium powder, 0.19-0.21 parts of carbon dust,
0.19-0.22 parts of zirconium powder.
Preferably, in parts by weight, the rigid pure gold is composed of the following components, and thousand 1000 parts of pure golds, yttrium powder 7
Part, 0.5 part of boron powder, 0.8 part of neodymium powder, 0.21 part of carbon dust, 0.21 part of zirconium powder.
Preferably, the yttrium powder, boron powder, neodymium powder, carbon dust and zirconium powder partial size be 5-10 μm.
The present invention also provides a kind of preparation methods of hard pure gold comprising following steps:
1) yttrium powder, boron powder, neodymium powder, carbon dust and zirconium powder are mixed with thousand pure gold blocks；
2) so that the mixture in step 1) is in vacuum state, then pass to argon gas；
3) thousand pure gold fusing points or more are warming up to and are kept the temperature, thousand pure gold is melted；
4) cool down and keep the temperature, be then cooled to thousand pure golds for being added to above-mentioned yttrium powder, boron powder, neodymium powder, carbon dust and zirconium powder
Type obtains rigid pure gold.
Preferably, the vacuum degree under vacuum state is 0.05MPa in the step 2)；After being passed through argon gas, vacuum degree is
0.04MPa。
Preferably, temperature-rise period is to rise to 1200 DEG C by room temperature in the step 3), the time of temperature-rise period is 3-
Then 5min keeps the temperature 7-12min at 1200 DEG C.
Temperature-fall period is that temperature is adjusted to 800 DEG C by 1200 DEG C in the step 4)；Then 2-3min is kept the temperature.
Preferably, the rigid pure gold is prepared in molten golden furnace.
The above technical solution of the present invention has the following advantages over the prior art:
(1) hard pure gold of the present invention, is grouped as by following group, thousand 950-1050 parts of pure golds, yttrium powder 6.65-7.35
Part, 0.475-0.525 parts of boron powder, 0.76-0.84 parts of neodymium powder, 0.19-0.21 parts of carbon dust, 0.19-0.22 parts of zirconium powder.The hard thousand
Pure gold thousand pure golds hardness large increase more in the prior art, is more easily processed, not variable after the products such as jewellery are made
Shape, abrasion, and there is good plasticity.
(2) preparation method of hard pure gold of the present invention comprising following steps: 1) by the yttrium powder, boron powder, neodymium
Powder, carbon dust and zirconium powder are placed in molten golden furnace together with thousand pure gold blocks；2) by the molten golden stove evacuation, and it is passed through argon gas；3)
Heating melts thousand pure gold；4) cool down and keep the temperature 3-7min, come out of the stove, be transferred to molding die.The preparation work of the rigid pure gold
Skill, equipment are simple, and thousand pure golds hardness obtained significantly improves, and coloration, corrosion resisting property are almost unchanged.
Specific embodiment
In order to make the content of the present invention more clearly understood, below according to specific embodiments of the present invention, to this
Invention is described in further detail.
Embodiment 1
The present embodiment is for a kind of hard pure gold, and in parts by weight, the hard pure gold is grouped as by following group, gold content thousand
950 parts of thousand pure gold that score is 999.3,6.65 parts of yttrium powder, 0.475 part of boron powder, 0.76 part of neodymium powder, 0.19 part of carbon dust, zirconium powder
0.19 part.Wherein, the partial size of yttrium powder, boron powder, neodymium powder, carbon dust and zirconium powder is 5 μm.
The preparation method of the hard pure gold, includes the following steps:
1) yttrium powder of above-mentioned parts by weight, boron powder, neodymium powder, carbon dust and zirconium powder are placed in molten golden furnace together with thousand pure gold blocks
In；
2) be to be passed through argon gas, drop the vacuum degree in molten golden furnace for 0.05MPa by molten golden stove evacuation to the vacuum degree
Down to 0.04MPa；
3) by molten golden furnace by room temperature to 1200 DEG C, melt thousand pure gold, the time of temperature-rise period is 3min, then
7min is kept the temperature at 1200 DEG C, melts thousand pure golds sufficiently；
4) after the melting of thousand pure golds, furnace temperature is adjusted to 800 DEG C, and keep the temperature 2min, then will be added to above-mentioned yttrium powder, boron
Powder, neodymium powder, carbon dust and zirconium powder thousand pure golds be transferred to molding die to get hard pure gold.
Embodiment 2
The present embodiment is for a kind of hard pure gold, and in parts by weight, the hard pure gold is grouped as by following group, gold content thousand
1000 parts of thousand pure gold that score is 999.3,7 parts of yttrium powder, 0.5 part of boron powder, 0.8 part of neodymium powder, 0.21 part of carbon dust, 0.21 part of zirconium powder.
Wherein, the partial size of yttrium powder, boron powder, neodymium powder, carbon dust and zirconium powder is 7 μm.
The preparation method of the hard pure gold, includes the following steps:
1) yttrium powder of above-mentioned parts by weight, boron powder, neodymium powder, carbon dust and zirconium powder are placed in molten golden furnace together with thousand pure gold blocks
In；
2) be to be passed through argon gas, drop the vacuum degree in molten golden furnace for 0.05MPa by molten golden stove evacuation to the vacuum degree
Down to 0.04MPa；
3) by molten golden furnace by room temperature to 1200 DEG C, melt thousand pure gold, the time of temperature-rise period is 4min, then
10min is kept the temperature at 1200 DEG C；
4) after the melting of thousand pure golds, furnace temperature is adjusted to 800 DEG C, and keep the temperature 3min, then will be added to above-mentioned yttrium powder, boron
Powder, neodymium powder, carbon dust and zirconium powder thousand pure golds be transferred to molding die to get hard pure gold.
Embodiment 3
The present embodiment is for a kind of hard pure gold, and in parts by weight, the hard pure gold is grouped as by following group, gold content thousand
1050 parts of thousand pure gold that score is 999.3,7.35 parts of yttrium powder, 0.525 part of boron powder, 0.84 part of neodymium powder, 0.21 part of carbon dust, zirconium powder
0.22 part.Wherein, the partial size of yttrium powder, boron powder, neodymium powder, carbon dust and zirconium powder is 10 μm.
The preparation method of the rigid pure gold, includes the following steps:
1) yttrium powder of above-mentioned parts by weight, boron powder, neodymium powder, carbon dust and zirconium powder are placed in molten golden furnace together with thousand pure gold blocks
In；
2) be to be passed through argon gas, drop the vacuum degree in molten golden furnace for 0.05MPa by molten golden stove evacuation to the vacuum degree
Down to 0.04MPa；
3) by molten golden furnace by room temperature to 1200 DEG C, melt thousand pure gold, the time of temperature-rise period is 5min, then
12min is kept the temperature at 1200 DEG C, melts thousand pure golds sufficiently；
4) after the melting of thousand pure golds, furnace temperature is adjusted to 800 DEG C, and keep the temperature 3min, then will be added to above-mentioned yttrium powder, boron
Powder, neodymium powder, carbon dust and zirconium powder thousand pure golds be transferred to molding die to get hard pure gold.
Experimental example
Commercially available thousand pure gold and thousand foot of hard described in embodiment 1-3 are tested according to standard GB/T/T 4340.1-2009
The Vickers hardness of gold, the results are shown in Table 1.
Table 1
| Existing thousand pure gold | Embodiment 1 | Embodiment 2 | Embodiment 3 | |
| Vickers hardness (HV) | 62 | 91 | 92 | 91 |
The above results can be seen that hard pure gold described in the embodiment of the present invention 1-3 compared with commercially available thousand pure gold, dimension
Family name's hardness is greatly improved, so that the hard pure gold is easy to process, and the products such as manufactured jewellery do not allow mutability
Shape, abrasion.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (2)
1. a kind of preparation method of hard pure gold, which is characterized in that the described method comprises the following steps:
1) yttrium powder, boron powder, neodymium powder, carbon dust and zirconium powder are mixed with thousand pure gold blocks；
2) so that the mixture in step 1) is in vacuum state, then pass to argon gas；
3) thousand pure gold fusing points or more are warming up to and are kept the temperature, thousand pure gold is melted；
4) cool down and keep the temperature, then thousand pure golds for being added to above-mentioned yttrium powder, boron powder, neodymium powder, carbon dust and zirconium powder are cooled and shaped, are obtained
To hard pure gold；
In parts by weight, the hard pure gold is composed of the following components, thousand 1000 parts of pure golds, and 7 parts of yttrium powder, 0.5 part of boron powder, neodymium powder
0.8 part, 0.21 part of carbon dust, 0.21 part of zirconium powder；
The yttrium powder, boron powder, neodymium powder, carbon dust and zirconium powder partial size be 5-10 μm；
Vacuum degree under vacuum state is 0.05MPa；After being passed through argon gas, vacuum degree 0.04MPa；
Temperature-rise period is that 1200 DEG C are risen to by room temperature in the step 3), and the time of temperature-rise period is 3-5min, then 1200
7-12min is kept the temperature at DEG C；
Temperature-fall period is that temperature is adjusted to 800 DEG C by 1200 DEG C in the step 4)；Then 2-3min is kept the temperature.
2. the preparation method of hard pure gold according to claim 1, which is characterized in that the hard pure gold is in molten golden furnace
Preparation.
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Families Citing this family (1)
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| CN109136625A (en) * | 2018-09-14 | 2019-01-04 | 深圳市品越珠宝有限公司 | A kind of high hardness alloy and preparation method thereof |
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| JP3221217B2 (en) * | 1994-03-03 | 2001-10-22 | 三菱マテリアル株式会社 | Pure gold ornament clasp |
| CN1061384C (en) * | 1998-04-25 | 2001-01-31 | 湖北金兰首饰集团有限公司 | Ultrastrong high-purity gold alloy material for jewelry |
| US20020098108A1 (en) * | 2000-09-01 | 2002-07-25 | Taylor Arthur D. | 22k gold alloy compositions |
| CN101437967A (en) * | 2005-04-19 | 2009-05-20 | 斯特恩利奇公司 | Method for adding boron to metal alloys |
| CN103695692B (en) * | 2013-12-11 | 2015-11-25 | 广州番禺职业技术学院 | A kind of high-purity high rigidity alloy material and preparation method thereof |
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Address after: Water Bay Industrial Zone No. 2135 Shenzhen Road, 518000 Street bamboo in Guangdong province Luohu District bamboo 3 Building 7 floor C District Patentee after: Shenzhen Chuanjin daiyin Technology Co.,Ltd. Address before: Water Bay Industrial Zone No. 2135 Shenzhen Road, 518000 Street bamboo in Guangdong province Luohu District bamboo 3 Building 7 floor C District Patentee before: JUNSON (SHENZHEN) CHUANJINDAIYIN TECHNOLOGY Co.,Ltd. |
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Address after: 518000 Shuibei International Jewelry Center 2901 (3701a), No. 99 Beili North Road, cuijin community, Cuizhu street, Luohu District, Shenzhen, Guangdong Province Patentee after: Shenzhen Chuanjin daiyin Technology Co.,Ltd. Address before: 518000 Zone C, 7 / F, building 3, Shuibei Industrial Zone, No. 2135, Cuizhu Road, Cuizhu street, Luohu District, Shenzhen, Guangdong 518000 Patentee before: Shenzhen Chuanjin daiyin Technology Co.,Ltd. |
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Address after: 518000 Shuibei International Jewelry Center 2901 (3701a), No. 99 Beili North Road, cuijin community, Cuizhu street, Luohu District, Shenzhen, Guangdong Province Patentee after: Shenzhen Xipuni Precision Technology Co.,Ltd. Address before: 518000 Shuibei International Jewelry Center 2901 (3701a), No. 99 Beili North Road, cuijin community, Cuizhu street, Luohu District, Shenzhen, Guangdong Province Patentee before: Shenzhen Chuanjin daiyin Technology Co.,Ltd. |
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