CN108115270A - The processing method of metal surface and the method for preparing alloy mold base - Google Patents
The processing method of metal surface and the method for preparing alloy mold base Download PDFInfo
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- CN108115270A CN108115270A CN201810031809.9A CN201810031809A CN108115270A CN 108115270 A CN108115270 A CN 108115270A CN 201810031809 A CN201810031809 A CN 201810031809A CN 108115270 A CN108115270 A CN 108115270A
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- alloy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/40—Removing material taking account of the properties of the material involved
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Abstract
The present invention relates to plating gold fields, disclose a kind of processing method of metal surface and the method for preparing alloy mold base.One aspect of the present invention discloses a kind of method being surface-treated to metal, and this method includes：Laser polishing is carried out to metal surface, the metal is alloy material and/or gold；On the other hand a kind of method for preparing alloy mold base is disclosed, this method includes：It is alloy mold base with alloy raw material machine-shaping, then the alloy mold base after shaping is surface-treated according to above-mentioned method.By above technical scheme can quickly, it is simple, efficiently mold base surface and gold finished product are surface-treated and reach relatively low roughness.
Description
Technical field
The present invention relates to plating gold fields, and in particular to a kind of processing method of metal surface and prepares alloy mold base
Method.
Background technology
With the increasingly raising of people's living standard, gold product is increasingly favored be subject to consumers in general, at present, uses
The gold product that the mode of plating produces is more and more, and the bright degree on the alloy mold base surface for electroplating largely is determined
The quality of plating gold finished product is determined, in addition, the bright degree on the surface of gold finished product obtained also determines gold product matter
The quality of amount.
The surface treatment of existing alloy mold base and gold finished product is extremely complex, it is necessary to which a ripe operator utilizes
Frustrate knife, scissors, cutting nippers, sharp cutting nippers, the operational sequence according to a series of instruments such as bow, hairbrush, sand paper, tooth pin and a series of complex
Alloy mold base or gold finished product are polished, so that alloy mold base and gold finished surface are bright, product size meets
It is required that no dent, scratching, the bad phenomenons such as level, salient point, sand holes, bubble.One ripe operator completes an ornaments
Surface polish required time and be at least 1h.
And the technology of this manual polishing mold base and gold finished product, it is not only very high to the skill set requirements of operator, and
And complex manufacturing technology, process are various, the process time is long, scrappage is high, therefore it is how quick, simple, efficiently to mold base table
Face and gold finished product be surface-treated and reach plating gold technological standards be current alloy mold base and gold process urgently
It solves the problems, such as.
The content of the invention
It is existing in the prior art multiple to operator's skill set requirements height, manufacture craft the purpose of the invention is to overcome
Miscellaneous, the problem of process is various, the process time is long, scrappage is high, provides a kind of processing method of metal surface and prepares alloy mould
The method of embryo.
To achieve these goals, one aspect of the present invention provides a kind of method being surface-treated to metal, the party
Method includes：Laser polishing is carried out to metal surface, the metal is alloy material and/or gold.
Second aspect of the present invention provides a kind of method for preparing alloy mold base, and this method includes：It is processed with alloy raw material
Be shaped to alloy mold base, then according to it is above-mentioned to the method that metal is surface-treated to the alloy mold base carry out table after shaping
Surface treatment.
Through the above technical solutions, quickly, simply, efficiently to alloy mold base surface and gold finished product it can carry out surface
It handles and reaches relatively low roughness.
Specific embodiment
First aspect present invention provides a kind of method being surface-treated to metal, which is characterized in that this method bag
It includes：Laser polishing is carried out to metal surface, the metal is alloy material and/or gold.
The present invention does not have the condition of laser polishing special requirement, can be conventional selection, but under normal circumstances,
It is also different for the setting of the laser used in different metal surfaces.According to preferred embodiment, when the metal is conjunction
During golden material, the wavelength of laser is 1064nm, and power is 200~500W, and frequency is 5~20Hz, focal beam spot a diameter of 0.1~
2mm.According to another preferred embodiment, when the metal is gold, the wavelength of laser is 808nm, power for 200~
1000W, frequency are 5~20Hz, a diameter of 0.1~2mm of focal beam spot.Different laser is used to the metal surface of unlike material
Parameter can obtain better polishing effect.
Above-mentioned alloy material can be sn-bi alloy and/or lead bismuth alloy, when alloy material is sn-bi alloy, with tin
On the basis of the total weight of bismuth alloy, the content of tin is preferably 40~60 weight % in the sn-bi alloy, and the content of bismuth is preferably
40~60 weight %.When alloy material is lead bismuth alloy, on the basis of the total weight of lead bismuth alloy, lead in the lead bismuth alloy
Content be preferably 40~50 weight %, the content of bismuth is preferably 50~60 weight %.
It selects above-mentioned alloy material that can overcome as the mold base of plating gold and electroplates gold at present using low-temperature wax material
The shortcomings that material is as mold base.The resistivity of the sn-bi alloy and/or lead bismuth alloy is low, and each position electric conductivity is consistent, in electroforming
It powers in the process uniformly, the quality of obtained gold ornament is more preferable.In addition, on the one hand, the sn-bi alloy and/or lead bismuth alloy
The coefficient of expansion it is extremely low, be only 1% or so of wax mold base, therefore product will not strain cracking in preparation process；The opposing party
Face, method provided by the invention need not use the organic matters such as inflammable and toxic white spirit, Tianna solution, hence it is evident that improve work
Environment, great prospects for commercial application.
The method of the present invention being surface-treated to metal, for gold product can be 18K, 22K and 24K
One kind in gold.
Second aspect of the present invention additionally provides a kind of method for preparing alloy mold base, and this method includes：With alloy raw material plus
Work is shaped to alloy mold base, and then method is surface-treated the alloy mold base after shaping as described above.Preferably,
The alloy raw material for sn-bi alloy and/or lead bismuth alloy (specifically can be identical or different with foregoing alloy material, herein no longer
It repeats).
Method of the present invention according to alloy raw material machine-shaping can be conventional selection, i.e., draw alloy mould first
The 3D figures of embryo, with 3D figure processing and fabricatings copperplate, either silver-colored version suppresses rubber moulding using copperplate or silver-colored version, after rubber moulding completes,
Rubber moulding is put into centrifuge, starts centrifuge, pours into the good alloy material of high temperature melting, is rotated by the high speed of centrifuge,
The alloy material that has melted is flowed into rubber moulding mold, fills the die cavity of rubber moulding, and completion to be filled, cooling, taking-up rubber moulding mold are beaten
Come unglued mould, takes out alloy mold base part, pulls the alloy mold base part mouth of a river.
But preferably, the method for machine-shaping includes：(1) the 3D figures of punching block used in mold base are drawn；(2) according to the 3D of drafting
Figure produces punching block；(3) alloy raw material is filled in the punching block obtained to step (2), and in die casting machine to alloy raw material into
Row die casting obtains alloy mold base.It is further preferred that the cast temperature of die casting machine is 150~260 DEG C, clamp force for 100~
600kg/cm2。
The method that punching block makes can be conventional method, typically by mould steel radicle according to the requirement of 3D figures size, by number
The lathes retrofits such as control lathe, electric discharge machine, lathe, grinding machine, milling machine form.Die casting carries out usually in die casting machine.
Preferably, the method for machine-shaping includes：(1) the 3D figures of mold base are drawn；(2) according to the 3D figures of drafting in numerical control machine
Alloy mold base is cut on bed.
Draw mold base used in punching block 3D figure or draw mold base 3D figures can by conventional software (such as MasterCAM,
Powermill, Hypermill, UG) it carries out.
It below will the present invention is described in detail by embodiment.
Mean roughness is tested：Using the Manual roughness devices that instead of cutting edge of a knife or a sword Science and Technology Ltd. produces during Beijing to alloy
The surface of mold base carries out roughness test.
Target mold base is circular ring shape bracelet mold base (internal diameter 50mm, outer diameter 55mm) in following embodiment.
Embodiment 1
(1) machine-shaping：The sn-bi alloy of molten state is injected in silicon rubber mould to carrying Bracelet structure (with the tin
On the basis of the total weight of bismuth alloy, the content of tin is 42 weight %, and the content of bismuth is 58 weight %), it then cools down, forms bracelet
The thick finished product of alloy mold base of structure.
(2) it is surface-treated：The thick finished product of alloy mold base is placed in laser machine, and (near infrared light, Changchun NPD projects photoelectric technology have
On workbench limit company, the lamp pump YAG laser-beam welding machines of 500W, similarly hereinafter), settings optical maser wavelength is 1064nm, and power is
200W, frequency 5Hz, a diameter of 0.2mm of focal beam spot start laser machine and are polished, and polishing is completed, and obtains alloy mold base A,
Observe no dent, scratch, level, salient point phenomena such as, process of surface treatment completes required total time as 5min, measures table
The mean roughness in face is 0.38 μm.
Embodiment 2
(1) machine-shaping：The 3D figures of punching block used in bracelet mold base are drawn, punching block is then produced according to the 3D figures of drafting,
By alloy raw material, (lead bismuth alloy, on the basis of the total weight of lead bismuth alloy, the content of lead is 45 weight %, and the content of bismuth is 55
Weight %) filling into punching block obtained above, and die casting machine (Guangdong Yizumi Precision Machinery Co., Ltd.,
HM160H, cast temperature are 160 DEG C, clamp force 150kg/cm2) in alloy raw material carry out die casting, it is thick to obtain alloy mold base
Finished product.
(2) it is surface-treated：The thick finished product of alloy mold base is placed on the workbench of laser machine, setting optical maser wavelength is
1064nm, power 480W, pulse frequency 20Hz, a diameter of 1.9mm of focal beam spot start laser machine and are polished, polish
Complete, obtain alloy mold base B, observe no dent, scratch, level, salient point phenomena such as, process of surface treatment complete it is required
Total time is 3min, and the mean roughness for measuring surface is 0.31 μm.
Embodiment 3
(1) machine-shaping：The 3D figures of bracelet mold base are drawn, choose alloy raw material block (sn-bi alloy, with the total of sn-bi alloy
On the basis of weight, the content of tin is 58 weight %, and the content of bismuth is 42 weight %), schemed according to the 3D of drafting, in numerically-controlled machine tool
It is cut on (one machine lathe company of Shenyang, VMC800), obtains the thick finished product of alloy mold base.
(2) it is surface-treated：The thick finished product of alloy mold base is placed on the workbench of laser machine, setting optical maser wavelength is
1064nm, power 350W, pulse frequency 12Hz, a diameter of 1mm of focal beam spot start laser machine and are polished, polished
Into, obtain alloy mold base C, observe no dent, scratch, level, salient point phenomena such as, process of surface treatment is completed required total
Time is 4min, and the mean roughness for measuring surface is 0.33 μm.
Embodiment 4
The alloy mold base of bracelet shape is prepared Following the procedure of Example 1, unlike, laser power is in step (2)
100W obtains alloy mold base D, observe no dent, scratch, level, salient point phenomena such as, process of surface treatment complete it is required
Total time is 5min, and the mean roughness for measuring surface is 0.51 μm.
Embodiment 5
The alloy mold base of bracelet shape is prepared Following the procedure of Example 1, unlike, the focal beam spot in step (2)
A diameter of 3mm obtains alloy mold base E, observe no dent, scratch, level, salient point phenomena such as, process of surface treatment complete institute
The total time needed is 5min, and the mean roughness for measuring surface is 0.55 μm.
Embodiment 6
Bracelet mold base obtained is used for prepare gold-plated bracelet, laser polishing is carried out to gold bracelet product obtained, is swashed
Light wave a length of 808nm, power 500W, frequency 20Hz, a diameter of 1.9mm of focal beam spot obtain gold bracelet, and observation does not have
Dent, scratch, level, salient point phenomena such as, process of surface treatment completes required total time as 3min, measures being averaged for surface
Roughness is 0.3 μm.
Comparative example 1
The alloy mold base of bracelet shape is prepared Following the procedure of Example 1, unlike, step is manually polished in (2)
Method (work 5 years be capable of complete independently polishing experienced operator) replace laser polishing technique, obtain alloy mold base D-1,
The time of glossing is 1h, and the mean roughness for measuring surface is 0.70 μm.
It can be seen that from the implementation result of embodiment 1-5 and comparative example 1 in metal surface treating method using the present invention
Under, it can greatly shorten the time of process of surface treatment, using the polishing method of the parameter of laser of the present invention, can obtain more
Good polishing effect makes the roughness after the polishing of mold base surface be reduced to 0.3~0.4 μm, so as to be next plating gold
Technique provides better mold base material, obtains preferably electroplating gold product.
In addition, electroplated it can be seen from embodiment 6 gold finished product can also be obtained using laser polishing method it is relatively low thick
Rugosity obtains better polishing effect, so that the aesthetics higher of gold product, compared with conventional manual polishing method
The process time can be shortened, be not repeated herein.
The preferred embodiment of the present invention has been described above in detail, and still, the present invention is not limited thereto.In the skill of the present invention
In art conception range, a variety of simple variants can be carried out to technical scheme, including each technical characteristic with it is any its
Its suitable method is combined, and it should also be regarded as the disclosure of the present invention for these simple variants and combination, belongs to
Protection scope of the present invention.
Claims (10)
- A kind of 1. method being surface-treated to metal, which is characterized in that this method includes：Laser throwing is carried out to metal surface Light, the metal are alloy material and/or gold.
- 2. according to the method described in claim 1, wherein, when the metal is alloy material, optical maser wavelength 1064nm, work( Rate is 200~500W, and frequency is 5~20Hz, a diameter of 0.1~2mm of focal beam spot.
- 3. according to the method described in claim 1, wherein, when the metal is gold, optical maser wavelength 808nm, power is 200~1000W, frequency are 5~20Hz, a diameter of 0.1~2mm of focal beam spot.
- 4. method according to claim 1 or 2, wherein, the alloy material is sn-bi alloy and/or lead bismuth alloy.
- 5. according to the method described in claim 4, wherein, on the basis of the total weight of the sn-bi alloy, the sn-bi alloy The content of middle tin is 40~60 weight %, and the content of bismuth is 40~60 weight %.
- 6. according to the method described in claim 4, wherein, on the basis of the total weight of the lead bismuth alloy, the lead bismuth alloy The content of middle lead is 40~50 weight %, and the content of bismuth is 50~60 weight %.
- 7. according to the method described in claim 1, wherein, the gold is one kind in 18K, 22K and 24K gold.
- A kind of 8. method for preparing alloy mold base, which is characterized in that this method includes：It is alloy mould with alloy raw material machine-shaping Then embryo is surface-treated the alloy mold base after shaping according to the method described in any one in claim 1-7；Preferably, the alloy raw material is sn-bi alloy and/or lead bismuth alloy.
- 9. according to the method described in claim 8, wherein, the method for machine-shaping includes：(1) 3D of punching block used in mold base is drawn Figure；(2) punching block is produced according to the 3D figures of drafting；(3) alloy raw material is filled in the punching block obtained to step (2), and pressed Die casting is carried out to alloy raw material in casting machine, obtains alloy mold base；Preferably, the cast temperature of die casting machine is 150~260 DEG C, and clamp force is 100~600kg/cm2。
- 10. according to the method described in claim 8, wherein, the method for machine-shaping includes：(1) the 3D figures of mold base are drawn；(2) Alloy mold base is cut on numerically-controlled machine tool according to the 3D figures of drafting.
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| CN201810031809.9A CN108115270B (en) | 2018-01-12 | 2018-01-12 | The processing method of metal surface and the method for preparing alloy mold base |
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| CN201810031809.9A CN108115270B (en) | 2018-01-12 | 2018-01-12 | The processing method of metal surface and the method for preparing alloy mold base |
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| CN1820677A (en) * | 2006-03-30 | 2006-08-23 | 上海市激光技术研究所 | Method for producing holographic souvenir coin |
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| CN103263128A (en) * | 2013-04-25 | 2013-08-28 | 深圳金一文化发展有限公司 | Manufacturing method of gold jewelry composed of silver base inlaid with gold |
| JP2017092503A (en) * | 2017-02-21 | 2017-05-25 | 株式会社東京精密 | Wafer dividing system and wafer dividing method |
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2018
- 2018-01-12 CN CN201810031809.9A patent/CN108115270B/en active Active
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|---|---|---|---|---|
| CN1368420A (en) * | 2001-02-07 | 2002-09-11 | 三圆模型企业有限公司 | Technology for fastly manufacturing less-quantity different dies |
| CN1820677A (en) * | 2006-03-30 | 2006-08-23 | 上海市激光技术研究所 | Method for producing holographic souvenir coin |
| CN102410469A (en) * | 2010-09-26 | 2012-04-11 | 佛山市国星光电股份有限公司 | Street lamp holder and manufacturing method |
| CN103263128A (en) * | 2013-04-25 | 2013-08-28 | 深圳金一文化发展有限公司 | Manufacturing method of gold jewelry composed of silver base inlaid with gold |
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Inventor after: Tang Shuangxi Inventor after: Wang Shuhan Inventor after: He Laisheng Inventor before: Tang Shuangxi Inventor before: He Laisheng |
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Address after: 518019 Luohu District, Shenzhen, Guangdong Province East Street xiaonhu street, 5 north of Cui Zhu Road, No. 3, 7, 2 West 1. Patentee after: Shenzhen United blue ocean gold material technology Co.,Ltd. Address before: 518019 Guangdong city of Shenzhen province Luohu District Cuizhu north petrochemical industrial area 3 Building 7 floor west area A Patentee before: SHENZHEN UNITED BLUEOCEAN TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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Address after: 518020 floor 7, warehouse 7, Sungang, No. 1007, Bao'an North Road, Sunxi community, Sungang street, Luohu District, Shenzhen, Guangdong Patentee after: Shenzhen United Blue Ocean Applied Materials Technology Co.,Ltd. Address before: 518019 Luohu District, Shenzhen, Guangdong Province East Street xiaonhu street, 5 north of Cui Zhu Road, No. 3, 7, 2 West 1. Patentee before: Shenzhen United blue ocean gold material technology Co.,Ltd. |