CN105714162B - A kind of aluminum automobile gear box casing - Google Patents
A kind of aluminum automobile gear box casing Download PDFInfo
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- CN105714162B CN105714162B CN201610051928.1A CN201610051928A CN105714162B CN 105714162 B CN105714162 B CN 105714162B CN 201610051928 A CN201610051928 A CN 201610051928A CN 105714162 B CN105714162 B CN 105714162B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/52—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating using reducing agents for coating with metallic material not provided for in a single one of groups C23C18/32 - C23C18/50
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
- C23C28/023—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only
- C23C28/025—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only with at least one zinc-based layer
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/12—Electroplating: Baths therefor from solutions of nickel or cobalt
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/10—Electroplating with more than one layer of the same or of different metals
- C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/10—Electroplating with more than one layer of the same or of different metals
- C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
- C25D5/14—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium two or more layers being of nickel or chromium, e.g. duplex or triplex layers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/032—Gearboxes; Mounting gearing therein characterised by the materials used
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Electrochemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Electroplating Methods And Accessories (AREA)
- Chemically Coating (AREA)
Abstract
The invention discloses a kind of aluminum automobile gear box casing, which is to be made of the electroplated layer of aluminum alloy base material and outside；The aluminium alloy by having following component to constitute by weight percentage：Zn：7 9%, Si：12 14%, Cu：6 8%, Mn：2 4%, Ti：0.8 1.2%, Re：0.3 0.5%, Mg：3 5%, Zr：1 3%, Ni：0.6 0.8%, surplus is Al and inevitable impurity；The electroplated layer is followed successively by heavy zinc layers, electroless nickel layer and outermost nickel plating, chromium or layers of copper from inside to outside, wherein heavy zinc layers are 3-tier architecture, every layer of thickness is about 12 μm, the thickness of electroless nickel layer is about 46 μm, and the thickness of outermost nickel plating, chromium or layers of copper is about 20 30 μm.
Description
Technical field
The present invention relates to metallurgical technology field more particularly to a kind of aluminum automobile gear box casings.
Background technology
In various metal productions, the aluminium yield in China is only second to steel, and China is that the production of electrolytic aluminium in the world is big again
State.Aluminium and its alloy have that specific strength is high, heat conduction, good conductivity and plasticity and it is easily molded the advantages that, be widely used to
Every profession and trade, wherein using the gear box casing of aluminum increasingly by the concern in market and approval.With market copper, zinc metal
Appreciate, hardware industry original has been much less using zinc, copper as the product profit of base material, and the rise in price of aluminium is slower, more due to
The density of aluminium and its alloy is small, and (density of aluminium is 2.7g/cm3), compared with other common metals, the material of same weight can be more
The parts of manufacture about three times.Many producers all replace copper, zinc-base material in preparation with aluminum alloy base material, but aluminium is both sexes gold
Belong to, that is, is dissolved in alkali and is dissolved in acid again, chemical property is more active, stronger with the affinity of oxygen, in an atmosphere easily on its surface
Layer oxide film is generated, is the No.1 problem of plating on aluminium alloy.
The application for a patent for invention of Publication No. CN1844480 provides a kind of electro-plating method of alloy product, includes mainly
Two steps of application and plating, to the application re-plating of aluminium alloy elder generation.The invention is using the advanced technologies being electroplated after first application to aluminium
Alloy product is electroplated, and polishing process is eliminated before plating, and imitating minute surface vehicle mode using machining reaches appearance requirement；It is only right
The part surface of product is electroplated, and the cost of raw material than being integrally electroplated substantially reduces；Coating avoids multiple baking, substantially reduces
Scrappage；Due to having special paint, powder to protect when plating, being painted in bath solution will not fade, when application not
Continuous pressing device for stereo-pattern paper is needed, the cost of raw material is reduced；The plating qualification rate of product improves 10% or so；It is only needed when strip is reprocessed
Chromium is moved back, then returns machining turning, every product strip expense is substantially reduced than stepping back plating again entirely.
The application for a patent for invention of Publication No. CN10348930 provides a kind of aluminum alloy electroplating method, and this method includes following
Step：1) it by aluminum alloy base material electrochemical deoiling, washes, drying；2) by electrochemical deoiling, washing, the aluminum alloy base material oxygen after drying
Change, washes, drying；3) it will aoxidize, washing, the aluminum alloy base material activation after drying is washed, drying；4) it will activate, washing is blown
Aluminum alloy base material membrane removal after dry, washing；5) by membrane removal, the 1st neutralization of aluminum alloy base material after washing, washing；6) by the 1st time
It neutralizes, the 1st heavy zinc of aluminum alloy base material after washing, zinc is moved back in washing；7) by the 1st heavy zinc, the aluminium alloy after zinc is moved back in washing
Zinc is moved back in the 2nd heavy zinc, washing to base material again；8) by the 2nd heavy zinc, the 2nd neutralization of the aluminum alloy base material after zinc, water are moved back in washing
It washes；9) the 2nd time is neutralized, the aluminum alloy base material after washing plates watt nickel to get target product.It is found through practice, the technique batch
A performance of taking second place is unstable, and the phenomenon that bubble, surface irregularity occur in some batches, shows that the technique is integrally unstable, causes
High rejection rate, thus, actual demand cannot be met.
Invention content
It is an object of the invention to propose a kind of aluminum automobile gear box casing, the aluminium alloy which uses for
It is improved on the basis of existing technology by adjusting ingredient, improves Intensity Design, and plating is electroplated outside shell
Coating, the binding force of cladding material is good, and flat appearance is corrosion-resistant, rub resistance, and heat-resisting and thermal conductivity is good.
For this purpose, the present invention uses following technical scheme：
A kind of aluminum automobile gear box casing, the gear box casing are to be made of the electroplated layer of aluminum alloy base material and outside；
The aluminium alloy by having following component to constitute by weight percentage：Zn：7-9%, Si：12-14%, Cu：6-8%, Mn：2-
4%, Ti：0.8-1.2%, Re：0.3-0.5%, Mg：3-5%, Zr：1-3%, Ni：0.6-0.8%, surplus are Al and can not keep away
The impurity exempted from；The electroplated layer be followed successively by from inside to outside heavy zinc layers, electroless nickel layer and outermost nickel plating, chromium or layers of copper, its
In sink zinc layers be 3-tier architecture, every layer of thickness is about 1-2 μm, and the thickness of electroless nickel layer is about 4-6 μm, outermost nickel plating, chromium
Or the thickness of layers of copper is about 20-30 μm；Wherein, the plating solution composition of heavy zinc layers and treatment process are：Sodium hydroxide 60-80g/L, oxygen
Change zinc 40-60g/L, sodium potassium tartrate tetrahydrate 100-120g/L, iron chloride 3-5g/L, sodium nitrate 3-5g/L；The temperature of heavy zinc is 30-50
DEG C, the zinc time is sunk for 20-40s；Carry out 3 heavy zinc processing；Wherein the plating solution composition of electroless nickel layer and treatment process are：
NiSO4·6H2O：160-180g/L, F-：0.6-0.8mol/L, boric acid 20-30g/L, (NH4)3C6H5O7：22-24g/L, saccharin
Sodium：1-3g/L, pH value：4.8-5.4, cathode-current density：2-4A/dm2, temperature：45-55 DEG C, the time：20-30min.
Outermost nickel plating, chromium or the copper carries out nickel plating, chromium or copper according to product use demand, using common process
Processing.
The method of the present invention has the advantages that：
1) on the basis of existing technology, the ingredient of aluminium alloy is adjusted, adds Re (rare earth), Zr and Ni members
Element, and have adjusted the content of remaining alloying element so that the intensity of the aluminium alloy of preparation is higher than existing diecasting alloys by 20% or more,
And toughness is still good, can meet the requirement of the parts such as the higher automobile structure of intensity requirement.
2) solution composition and the treatment conditions of heavy zinc processing are had adjusted, and carry out 3 processing so that pack alloy
Part has good binder course performance, binding force strong.Practice have shown that by mentioned component, temperature, processing time, especially locate
Manage the adjustment of number so that prime coat performance increases substantially, if heavy zinc liquid constituent content not within the above range, will lead to shape
It is deteriorated at the extreme of index.Therefore, the exact extension for finding above-mentioned content is the crucial inventive point place of the present invention.
This is because the composition of the heavy zinc liquid after adjustment is according to the constituent of the aluminium alloy after adjustment and the adjusted design that carries out,
Make mutual scattering and permeating between base material and the ingredient of prime coat, and the reason of 3 processing, lies also in this, shape after first time heavy zinc
At the sufficient diffusion layer with base material, diffusion layer amount is significantly reduced compared with first layer after second of heavy zinc, but is formed with first layer good
Good to combine, third time sinks third layer after zinc a diffusion transition with base material substantially, but is tightly combined with the second layer, while third
Layer remains good performance as the basal layer of subsequent plating layer.
3) the characteristics of basis sinks zinc process layer, design is optimized to the plating solution of electroless nickel layer so that electroless nickel layer
It can preferably play the role of forming a connecting link, and then ensure the flat appearance of product, bubble-free phenomenon.
4) supplementary material of the invention is of low cost, simple for process, easy to operate.
Specific implementation mode
Embodiment one
A kind of aluminum automobile gear box casing, the gear box casing are to be made of the electroplated layer of aluminum alloy base material and outside；
The aluminium alloy by having following component to constitute by weight percentage：Zn：7%, Si：14%, Cu：6%, Mn：4%, Ti：
0.8%, Re：0.5%, Mg：3%, Zr：3%, Ni：0.6%, She's amount is Al and inevitable impurity；The electroplated layer is by interior
To be followed successively by heavy zinc layers, electroless nickel layer and outermost nickel plating, chromium or layers of copper outside, wherein heavy zinc layers are 3-tier architecture, every layer
Thickness is about 1-2 μm, and the thickness of electroless nickel layer is about 4-6 μm, and the thickness of outermost nickel plating, chromium or layers of copper is about 20-30 μm；
Wherein, the plating solution composition of heavy zinc layers and treatment process are：Sodium hydroxide 60g/L, zinc oxide 60g/L, sodium potassium tartrate tetrahydrate 100g/L,
Iron chloride 5g/L, sodium nitrate 3g/L；The temperature of heavy zinc is 50 DEG C, sinks the zinc time for 20s；Carry out 3 heavy zinc processing；Wherein it is electroplated
The plating solution of nickel layer forms and treatment process is：NiSO4·6H2O：180g/L, F-：0.8mol/L, boric acid 20g/L, (NH4)3C6H5O7：24g/L, saccharin sodium：1g/L, pH value：5.4, cathode-current density：2A/dm2, temperature：55 DEG C, the time：20min.
Embodiment two
A kind of aluminum automobile gear box casing, the gear box casing are to be made of the electroplated layer of aluminum alloy base material and outside；
The aluminium alloy by having following component to constitute by weight percentage：Zn：9%, Si：12%, Cu：8%, Mn：2%, Ti：
1.2%, Re：0.3%, Mg：5%, Zr：1%, Ni：0.8%, surplus is Al and inevitable impurity；The electroplated layer is by interior
To be followed successively by heavy zinc layers, electroless nickel layer and outermost nickel plating, chromium or layers of copper outside, wherein heavy zinc layers are 3-tier architecture, every layer
Thickness is about 1-2 μm, and the thickness of electroless nickel layer is about 4-6 μm, and the thickness of outermost nickel plating, chromium or layers of copper is about 20-30 μm；
Wherein, the plating solution composition of heavy zinc layers and treatment process are：Sodium hydroxide 80g/L, zinc oxide 40g/L, sodium potassium tartrate tetrahydrate 120g/L,
Iron chloride 3g/L, sodium nitrate 5g/L；The temperature of heavy zinc is 30 DEG C, sinks the zinc time for 40s；Carry out 3 heavy zinc processing；Wherein it is electroplated
The plating solution of nickel layer forms and treatment process is：NiSO4·6H2O：180g/L, F-：0.6mol/L, boric acid 30g/L, (NH4)3C6H5O7：22g/L, saccharin sodium：3g/L, pH value：4.8, cathode-current density：4A/dm2, temperature：45 DEG C, the time：30min.
Embodiment three
A kind of aluminum automobile gear box casing, the gear box casing are to be made of the electroplated layer of aluminum alloy base material and outside；
The aluminium alloy by having following component to constitute by weight percentage：Zn：8%, Si：13%, Cu：7%, Mn：3%, Ti：
1.0%, Re：0.4%, Mg：4%, Zr：2%, Ni：0.7%, surplus is Al and inevitable impurity；The electroplated layer is by interior
To be followed successively by heavy zinc layers, electroless nickel layer and outermost nickel plating, chromium or layers of copper outside, wherein heavy zinc layers are 3-tier architecture, every layer
Thickness is about 1-2 μm, and the thickness of electroless nickel layer is about 4-6 μm, and the thickness of outermost nickel plating, chromium or layers of copper is about 20-30 μm；
Wherein, the plating solution composition of heavy zinc layers and treatment process are：Sodium hydroxide 70g/L, zinc oxide 50g/L, sodium potassium tartrate tetrahydrate 110g/L,
Iron chloride 4g/L, sodium nitrate 4g/L；The temperature of heavy zinc is 40 DEG C, sinks the zinc time for 30s；Carry out 3 heavy zinc processing；Wherein it is electroplated
The plating solution of nickel layer forms and treatment process is：NiSO4·6H2O：170g/L, F-：0.7mol/L, boric acid 25g/L, (NH4)3C6H5O7：23g/L, saccharin sodium：2g/L, pH value：5.1, cathode-current density：3A/dm2, temperature：50 DEG C, the time：25min.
Applicant states that the present invention illustrates detailed process equipment and the technological process of the present invention by above-described embodiment,
But the invention is not limited in above-mentioned detailed process equipment and technological processes, that is, it is above-mentioned detailed not mean that the present invention has to rely on
Process equipment and technological process could be implemented.Person of ordinary skill in the field it will be clearly understood that any improvement in the present invention,
The addition of equivalence replacement and auxiliary element to each raw material of product of the present invention, the selection etc. of concrete mode all fall within the present invention's
Within protection domain and the open scope.
Claims (1)
1. a kind of aluminum automobile gear box casing, which is to be made of the electroplated layer of aluminum alloy base material and outside；Institute
Aluminium alloy is stated by having following component to constitute by weight percentage：Zn：8%, Si：13%, Cu：7%, Mn：3%, Ti：1.0%,
RE：0.4%, Mg：4%, Zr：2%, Ni：0.7%, surplus is Al and inevitable impurity；The electroplated layer is from inside to outside successively
It is 3-tier architecture for heavy zinc layers, electroless nickel layer and outermost nickel plating, chromium or layers of copper, wherein heavy zinc layers, every layer of thickness is 1-
2 μm, the thickness of electroless nickel layer is 4-6 μm, and the thickness of outermost nickel plating, chromium or layers of copper is 20-30 μm；Wherein, zinc layers are sunk
Plating solution forms and treatment process is：Sodium hydroxide 70g/L, zinc oxide 50g/L, sodium potassium tartrate tetrahydrate 110g/L, iron chloride 4g/L, nitre
Sour sodium 4g/L；The temperature of heavy zinc is 40 DEG C, sinks the zinc time for 30s；Carry out 3 heavy zinc processing；The wherein plating solution group of electroless nickel layer
At and treatment process be：NiSO4·6H2O：170g/L, F-：0.7mol/L, boric acid 25g/L, (NH4)3C6H5O7：23g/L, saccharin
Sodium：2g/L, pH value：5.1, cathode-current density：3A/dm2, temperature：50 DEG C, the time：25min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610051928.1A CN105714162B (en) | 2016-01-25 | 2016-01-25 | A kind of aluminum automobile gear box casing |
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| CN201610051928.1A CN105714162B (en) | 2016-01-25 | 2016-01-25 | A kind of aluminum automobile gear box casing |
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| CN105714162B true CN105714162B (en) | 2018-07-20 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106352057A (en) * | 2016-08-23 | 2017-01-25 | 宁波市鄞州唯达汽车配件厂（普通合伙） | Aluminum product reduction gearbox for vehicle |
| CN106756297A (en) * | 2016-12-20 | 2017-05-31 | 重庆顺博铝合金股份有限公司 | Aluminium alloy and preparation method thereof for preparing gear box casing |
| CN106884113B (en) * | 2017-03-28 | 2018-09-25 | 泉州宝顿机械技术开发有限公司 | A kind of high-strength aluminum alloy and its casting method |
| CN107034393A (en) * | 2017-04-19 | 2017-08-11 | 安徽固齐线路器材有限公司 | A kind of electric armour clamp high-strength abrasion-proof aluminum alloy |
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| US4834941A (en) * | 1984-11-28 | 1989-05-30 | Honda Giken Kogyo Kabushiki Kaisha | Heat-resisting high-strength Al-alloy and method for manufacturing a structural member made of the same alloy |
| CN103031473A (en) * | 2009-03-03 | 2013-04-10 | 中国科学院苏州纳米技术与纳米仿生研究所 | Processing method of high-toughness Al-Si system die-casting aluminum alloy |
| CN103540968A (en) * | 2013-09-24 | 2014-01-29 | 成都泛华航空仪表电器有限公司 | Process method for electroplating nickel on aluminum-copper composite material component |
| CN104112705A (en) * | 2014-06-06 | 2014-10-22 | 宁波康强电子股份有限公司 | Lead wire frame copper plating method, lead wire frame, lead wire frame row |
| CN104264020A (en) * | 2014-10-17 | 2015-01-07 | 苏州凯宥电子科技有限公司 | High-strength die casting aluminum alloy and preparation method thereof |
| CN105063619A (en) * | 2015-05-27 | 2015-11-18 | 广东欧珀移动通信有限公司 | Metal plating piece and preparation method thereof |
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2016
- 2016-01-25 CN CN201610051928.1A patent/CN105714162B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4834941A (en) * | 1984-11-28 | 1989-05-30 | Honda Giken Kogyo Kabushiki Kaisha | Heat-resisting high-strength Al-alloy and method for manufacturing a structural member made of the same alloy |
| CN103031473A (en) * | 2009-03-03 | 2013-04-10 | 中国科学院苏州纳米技术与纳米仿生研究所 | Processing method of high-toughness Al-Si system die-casting aluminum alloy |
| CN103540968A (en) * | 2013-09-24 | 2014-01-29 | 成都泛华航空仪表电器有限公司 | Process method for electroplating nickel on aluminum-copper composite material component |
| CN104112705A (en) * | 2014-06-06 | 2014-10-22 | 宁波康强电子股份有限公司 | Lead wire frame copper plating method, lead wire frame, lead wire frame row |
| CN104264020A (en) * | 2014-10-17 | 2015-01-07 | 苏州凯宥电子科技有限公司 | High-strength die casting aluminum alloy and preparation method thereof |
| CN105063619A (en) * | 2015-05-27 | 2015-11-18 | 广东欧珀移动通信有限公司 | Metal plating piece and preparation method thereof |
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| CN105714162A (en) | 2016-06-29 |
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