CN106862037A - A kind of aluminium alloy wheel hub chromatography coating method - Google Patents
A kind of aluminium alloy wheel hub chromatography coating method Download PDFInfo
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- CN106862037A CN106862037A CN201710177510.XA CN201710177510A CN106862037A CN 106862037 A CN106862037 A CN 106862037A CN 201710177510 A CN201710177510 A CN 201710177510A CN 106862037 A CN106862037 A CN 106862037A
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- China
- Prior art keywords
- wheel hub
- aluminium alloy
- alloy wheel
- treatment
- pure water
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
- B05D3/102—Pretreatment of metallic substrates
-
- 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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/02—Pretreatment of the material to be coated
- C23C14/021—Cleaning or etching treatments
- C23C14/022—Cleaning or etching treatments by means of bombardment with energetic particles or radiation
-
- 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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
Abstract
The present invention relates to a kind of aluminium alloy wheel hub chromatography coating method, belong to hub surface furnishing fields, concretely comprise the following steps：Pre-treatment：Aluminium alloy wheel hub sequentially passes through pre- degreasing, degreasing, washing, washing, pickling, pure water is washed, pure water is washed, chromiumfree conversion, pure water are washed, SAM, pure water-washing process；After pre-treatment dust treatment, drying are carried out into bottom powder spray room；After treatment of dusting spray painting treatment, drying are carried out into colored paint spray room；Vacuum splashing and plating is carried out after covering tool；Vacuum splashing and plating is laggard as the saturating spray room treatment of powder, drying obtain finished product；Ray examination under end product, certified products packaging and storage.With existing coating process be combined vacuum splashing and plating technique by the present invention, a kind of colored paint of spray is changed from technique and sprays a kind of present situation of colored paint again through the mode such as covering or smart car polishing, realize that just double-colored spraying can be completed through a spraying coating line, improve the metal sense of wheel hub, more conducively aesthetic conceptions and personalization demand, saving is sprayed into this, reduces the pollution that spraying is caused.
Description
Technical field
The invention belongs to hub surface furnishing fields, specifically, it is related to a kind of aluminium alloy wheel hub chromatography coating method.
Background technology
At present aluminum-alloy wheel on the market be all cast or forging after, application spray painting completes incrustation.With careful
Change attractive in appearance and the demand of personalization, wheel moulding are more and more, and the requirement of incrustation also more and more higher, many wheel hubs go out
Two-color coating is showed.Main point two ways realizes, one is to spray to cover after a kind of color spray again another color, and two are
Spray and go up a kind of color again after smart car or polishing after a kind of color.But all it is to change color on coating, color is all base
Realized in coating, lack metal sense；And, existing double-colored technique is relatively costly mostly through paint line twice.
Therefore, it is necessary to be improved to existing paint line, there is provided the double-colored coating that a kind of metal sense is stronger, cost is lower
Technique.
The content of the invention
In order to overcome the problem in background technology, the present invention to propose a kind of aluminium alloy wheel hub chromatography coating method, will be true
Empty sputtering process is combined with existing coating process, and a kind of colored paint of spray is changed from technique through the mode such as covering or smart car polishing
A kind of present situation of colored paint is sprayed again, realizes that just double-colored spraying can be completed through a spraying coating line, improve the metal sense of wheel hub, it is more sharp
In aesthetic conceptions and the demand of personalization, saving is sprayed into this, reduces the pollution that spraying is caused.
In order to achieve the above object, the present invention is implemented according to following technical scheme：
A kind of aluminium alloy wheel hub chromatography coating method, concretely comprises the following steps：
1）Pre-treatment：Aluminium alloy wheel hub sequentially passes through pre- degreasing, degreasing, washing, washing, pickling, pure water is washed, pure water is washed, Chrome-free
Conversion, pure water are washed, SAM, pure water-washing process, complete continuous-flow type pre-treatment step；
2）Through the aluminium alloy wheel hub after pre-treatment dust treatment, drying are carried out into bottom powder spray room；
3）Through the aluminium alloy wheel hub after treatment of dusting spray painting treatment, drying are carried out into colored paint spray room；
4）Aluminium alloy wheel hub after spray painting is processed is covered with tool；
5）Covering the aluminium alloy wheel hub after tool carries out vacuum splashing and plating；
6）Aluminium alloy wheel hub after vacuum splashing and plating obtains finished product into the saturating spray room treatment of powder, drying；
7）Ray examination under finished product, certified products packaging and storage.
Further, step 1）In, alkali point is 8~12 during degreasing, and acid point is 4~6；Chromiumfree conversion electrical conductivity be 75~
150μS/㎝；SAM bath temperatures degree is 50~60 DEG C, and pH value is 2.8~3.8；In pre-treatment step, Stress control is 1.0bar.
Further, step 2）In, bottom powder is carried out using a word nozzle and is dusted, 1.3~1.6bar of flow, spraying swath 2.5~
3.0bar, voltage 50V, the μ A of electric current 60.
Further, step 3）In, colored paint spraying 1.3~1.6bar of flow, 2.5~3.0bar of spraying swath, voltage 50V, electricity
Flow 60 μ A.
Further, step 4）In, tool is molded using PC and ABS material, is matched with wheel hub shaping, itself and wheel hub
Covering gap is 1.0~2.0mm.
Further, step 5）In, during vacuum splashing and plating, first to workpiece in vacuum pressure<Under the conditions of 1E-3torr
Pre-processed, workpiece surface is cleared up using plasma, the workpiece after cleaning is carried out sputter again, 99.5% for being passed through
High-purity gas molecules strike coating mother metal, coating material is settled on the surface of the workpiece, forms glossiness>The fine and close plating of 1000Gu
Film.
Further, step 6）In, dusted using a word nozzle, 1.3~1.5bar of flow, spraying swath 2.5~
3.0bar, voltage 55V, the μ A of electric current 70.
Beneficial effects of the present invention：With existing coating process be combined vacuum splashing and plating technique by the present invention, changes from technique
A kind of colored paint of spray is become and has sprayed a kind of present situation of colored paint again through the mode such as covering or smart car polishing, realizing just can be complete through a spraying coating line
Into double-colored spraying, the metal sense of wheel hub, more conducively aesthetic conceptions and the demand of personalization are improved, saving is sprayed into this, reduces
The pollution that once spraying colored paint is caused.
Brief description of the drawings
Fig. 1 is present invention process flow chart.
Specific embodiment
Embodiment 1
A kind of aluminium alloy wheel hub chromatography coating method, concretely comprises the following steps：
1）Pre-treatment：Aluminium alloy wheel hub sequentially passes through pre- degreasing, degreasing, washing, washing, pickling, pure water is washed, pure water is washed, Chrome-free
Conversion, pure water are washed, SAM, pure water-washing process, and alkali point is 8 during degreasing, and acid point is 5, grease, the oxide on removal wheel rim surface；Nothing
Chromium conversion electrical conductivity is 75~150 μ S/ ㎝；SAM bath temperatures degree is 50~60 DEG C, and pH value is 2.8~3.8；Each link Stress control
1.0bar is, one layer of conversion film is formed on wheel rim surface after pre-treatment, make to be organically combined between paint film and wheel hub, increased and combine
Power, anticorrosive, the multiple water washing operations in operation are consistent, it is ensured that medicament is rinsed well, and the operation that multiple pure water is washed is also consistent, control
Hydraulic pressure processed is 1Bar, and the mode of operation that washing and pure water are washed is fountain.
2）Carried out with a word nozzle bottom powder into bottom powder spray room through the aluminium alloy wheel hub after pre-treatment to dust treatment, stream
Amount 1.5bar, spraying swath 3.0bar, voltage 50V, the μ A of electric current 60, subsequently into drying room drying, 70~100 μm of control bottom powder thickness,
The levelling on surface can be improved, bottom powder can strengthen adhesive force；
3）Through the aluminium alloy wheel hub after treatment of dusting spray painting treatment, colored paint spraying flow 1.5bar, spray are carried out into colored paint spray room
Width 3.0bar, voltage 50V, the μ A of electric current 60, subsequently into drying room drying；
4）Aluminium alloy wheel hub after spray painting is processed is covered with tool, and tool is molded using PC and ABS material, is made with wheel hub
Type is matched, and it is 1.5mm to cover gap with wheel hub；
5）Covering the aluminium alloy wheel hub after tool carries out vacuum splashing and plating；
6）Aluminium alloy wheel hub after vacuum splashing and plating enters the saturating spray room treatment of powder, is dusted using a word nozzle, flow 1.5bar,
Spraying swath 3.0bar, voltage 55V, the μ A of electric current 70 between 80~120 μm of control transparent powder thickness, have more preferable levelling and anticorrosive
Property, it is a good surface protection to wheel hub, obtain finished product subsequently into drying room drying；
7）Ray examination under finished product, certified products packaging and storage.
Embodiment 2
A kind of aluminium alloy wheel hub chromatography coating method, concretely comprises the following steps：
1）Pre-treatment：Aluminium alloy wheel hub sequentially passes through pre- degreasing, degreasing, washing, washing, pickling, pure water is washed, pure water is washed, Chrome-free
Conversion, pure water are washed, SAM, pure water-washing process, and alkali point is 12 during degreasing, and acid point is 4, grease, the oxide on removal wheel rim surface；
Chromiumfree conversion electrical conductivity is 75~150 μ S/ ㎝；SAM bath temperatures degree is 50~60 DEG C, and pH value is 2.8~3.8；Each link pressure control
System is 1.0bar, and one layer of conversion film is formed on wheel rim surface after pre-treatment, makes to be organically combined between paint film and wheel hub, increases and combines
Power, anticorrosive, the multiple water washing operations in operation are consistent, it is ensured that medicament is rinsed well, and the operation that multiple pure water is washed is also consistent, control
Hydraulic pressure processed is 1Bar；
2）Carried out with a word nozzle bottom powder into bottom powder spray room through the aluminium alloy wheel hub after pre-treatment to dust treatment, flow
1.6bar, spraying swath 2.5bar, voltage 50V, the μ A of electric current 60, subsequently into drying room drying, 70~100 μm of control bottom powder thickness can
The levelling on surface is improved, bottom powder can strengthen adhesive force；
3）Through the aluminium alloy wheel hub after treatment of dusting spray painting treatment, colored paint spraying flow 1.6bar, spray are carried out into colored paint spray room
Width 2.5bar, voltage 50V, the μ A of electric current 60, subsequently into drying room drying；
4）Aluminium alloy wheel hub after spray painting is processed is covered with tool, and tool is molded using PC and ABS material, is made with wheel hub
Type is matched, and it is 2.0mm to cover gap with wheel hub；
5）Covering the aluminium alloy wheel hub after tool carries out vacuum splashing and plating；
6）Aluminium alloy wheel hub after vacuum splashing and plating enters the saturating spray room treatment of powder, is dusted using a word nozzle, flow 1.3bar,
Spraying swath 2.5bar, voltage 55V, the μ A of electric current 70 between 80~120 μm of control transparent powder thickness, have more preferable levelling and anticorrosive
Property, it is a good surface protection to wheel hub, obtain finished product subsequently into drying room drying；
7）Ray examination under finished product, certified products packaging and storage.
Embodiment 3
A kind of aluminium alloy wheel hub chromatography coating method, concretely comprises the following steps：
1）Pre-treatment：Aluminium alloy wheel hub sequentially passes through pre- degreasing, degreasing, washing, washing, pickling, pure water is washed, pure water is washed, Chrome-free
Conversion, pure water are washed, SAM, pure water-washing process, and alkali point is 10 during degreasing, and acid point is 6, grease, the oxide on removal wheel rim surface；
Chromiumfree conversion electrical conductivity is 75~150 μ S/ ㎝；SAM bath temperatures degree is 50~60 DEG C, and pH value is 2.8~3.8；Each link pressure control
System is 1.0bar, and one layer of conversion film is formed on wheel rim surface after pre-treatment, makes to be organically combined between paint film and wheel hub, increases and combines
Power, anticorrosive, the multiple water washing operations in operation are consistent, it is ensured that medicament is rinsed well, and the operation that multiple pure water is washed is also consistent, control
Hydraulic pressure processed is 1Bar, and the mode of operation that washing and pure water are washed is fountain；
2）Carried out with a word nozzle bottom powder into bottom powder spray room through the aluminium alloy wheel hub after pre-treatment to dust treatment, flow
1.3bar, spraying swath 2.7bar, voltage 50V, the μ A of electric current 60, subsequently into drying room drying, 70~100 μm of control bottom powder thickness can
The levelling on surface is improved, bottom powder can strengthen adhesive force；
3）Through the aluminium alloy wheel hub after treatment of dusting spray painting treatment, colored paint spraying flow 1.6bar, spray are carried out into colored paint spray room
Width 2.8bar, voltage 50V, the μ A of electric current 60, subsequently into drying room drying；
4）Aluminium alloy wheel hub after spray painting is processed is covered with tool, and tool is molded using PC and ABS material, is made with wheel hub
Type is matched, and it is 1.0mm to cover gap with wheel hub；
5）Covering the aluminium alloy wheel hub after tool carries out vacuum splashing and plating；
6）Aluminium alloy wheel hub after vacuum splashing and plating enters the saturating spray room treatment of powder, is dusted using a word nozzle, flow 1.5bar,
Spraying swath 3.0bar, voltage 55V, the μ A of electric current 70 between 80~120 μm of control transparent powder thickness, have more preferable levelling and anticorrosive
Property, it is a good surface protection to wheel hub, obtain finished product subsequently into drying room drying；
7）Ray examination under finished product, certified products packaging and storage.
Effect analysis
The chromatography coating method and existing spraying method twice provided with the present invention respectively from identical aluminium alloy wheel hub are entered
Row coating, the aluminium alloy wheel hub using the inventive method coating is more glittering, more gorgeous, and wheel rim brightness can reach glossiness
More than 1000Gu, existing colored paint spraying is only capable of reaching 50-100Gu；Aluminium alloy wheel hub using the inventive method coating adheres to
Power test passes, block this requirement of the experiment more than 168 hours, and Erosion Width is more more anticorrosive than existing colored paint within 2 ㎜
Property.
With existing coating process be combined vacuum splashing and plating technique by the present invention, and a kind of colored paint of spray is changed from technique through hiding
The mode such as lid or smart car polishing sprays a kind of present situation of colored paint again, realizes that just double-colored spraying can be completed through a spraying coating line, improves
The metal sense of wheel hub, more conducively aesthetic conceptions and the demand of personalization, saving are sprayed into this, reduce what once spraying colored paint was caused
Pollution, by regulating and controlling each technological parameter, makes technological process reach preferable effect, wherein between control smelting tool and wheel hub
Away from, it is to avoid cause double-colored line of demarcation not straight because gap is excessive, not enough clearly, it is to avoid to cause to have after PVD because gap is too small to splash
The segment difference of coating, short-term.
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical
Cross above preferred embodiment to be described in detail the present invention, it is to be understood by those skilled in the art that can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (7)
1. a kind of aluminium alloy wheel hub chromatography coating method, it is characterised in that：Concretely comprise the following steps：
1）Pre-treatment：Aluminium alloy wheel hub sequentially passes through pre- degreasing, degreasing, washing, washing, pickling, pure water is washed, pure water is washed, Chrome-free
Conversion, pure water are washed, SAM, pure water-washing process, complete continuous-flow type pre-treatment step；
2）Through the aluminium alloy wheel hub after pre-treatment dust treatment, drying are carried out into bottom powder spray room；
3）Through the aluminium alloy wheel hub after treatment of dusting spray painting treatment, drying are carried out into colored paint spray room；
4）Aluminium alloy wheel hub after spray painting is processed is covered with tool；
5）Covering the aluminium alloy wheel hub after tool carries out vacuum splashing and plating；
6）Aluminium alloy wheel hub after vacuum splashing and plating obtains finished product into the saturating spray room treatment of powder, drying；
7）Ray examination under finished product, certified products packaging and storage.
2. a kind of aluminium alloy wheel hub chromatography coating method according to claim 1, it is characterised in that：Step 1）In, degreasing
When alkali point be 8~12, acid point is 4~6；Chromiumfree conversion electrical conductivity is 75~150 μ S/ ㎝；SAM bath temperatures degree is 50~60 DEG C, pH
Be worth is 2.8~3.8；In pre-treatment step, Stress control is 1.0bar.
3. a kind of aluminium alloy wheel hub chromatography coating method according to claim 1, it is characterised in that：Step 2）In, use
One word nozzle carries out bottom powder and dusts, 1.3~1.6bar of flow, 2.5~3.0bar of spraying swath, voltage 50V, the μ A of electric current 60.
4. a kind of aluminium alloy wheel hub chromatography coating method according to claim 1, it is characterised in that：Step 3）In, colored paint
Spray 1.3~1.6bar of flow, 2.5~3.0bar of spraying swath, voltage 50V, the μ A of electric current 60.
5. a kind of aluminium alloy wheel hub chromatography coating method according to claim 1, it is characterised in that：Step 4）In, tool
It is molded using PC and ABS material, is matched with wheel hub shaping, it is 1.0~2.0mm that it covers gap with wheel hub.
6. a kind of aluminium alloy wheel hub chromatography coating method according to claim 1, it is characterised in that：Step 5）In, vacuum
In sputtering process, first to workpiece in vacuum pressure<Pre-processed under the conditions of 1E-3torr, using plasma to workpiece table
Face is cleared up, and the workpiece after cleaning carries out sputter again, 99.5% high-purity gas molecules strike coating mother metal being passed through, coating material
Material sedimentation on the surface of the workpiece, forms glossiness>The fine and close plated film of 1000Gu.
7. a kind of aluminium alloy wheel hub chromatography coating method according to claim 1, it is characterised in that：Step 6）In, use
One word nozzle is dusted, 1.3~1.5bar of flow, 2.5~3.0bar of spraying swath, voltage 55V, the μ A of electric current 70.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710177510.XA CN106862037A (en) | 2017-03-23 | 2017-03-23 | A kind of aluminium alloy wheel hub chromatography coating method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710177510.XA CN106862037A (en) | 2017-03-23 | 2017-03-23 | A kind of aluminium alloy wheel hub chromatography coating method |
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| CN106862037A true CN106862037A (en) | 2017-06-20 |
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ID=59171912
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| CN201710177510.XA Pending CN106862037A (en) | 2017-03-23 | 2017-03-23 | A kind of aluminium alloy wheel hub chromatography coating method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109701852A (en) * | 2018-12-27 | 2019-05-03 | 安徽银龙泵阀股份有限公司 | A kind of surface defect treatment process for water pump vane |
| CN111230413A (en) * | 2020-01-14 | 2020-06-05 | 盛旺汽车零部件（昆山）有限公司 | Hub precision pattern laser spraying process |
| CN111804549A (en) * | 2020-07-07 | 2020-10-23 | 盛旺汽车零部件（昆山）有限公司 | Hub coating process |
| CN112317280A (en) * | 2020-10-28 | 2021-02-05 | 正兴车轮集团有限公司 | Environment-friendly wheel paint spraying process |
| CN113600534A (en) * | 2021-07-26 | 2021-11-05 | 张家港市晨艺电子有限公司 | Coating pretreatment device and pretreatment method for aviation aluminum parts |
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| CN101050531A (en) * | 2007-05-18 | 2007-10-10 | 上越铝业股份有限公司 | Procedure for sputtering mixed color on wheel rim |
| CN101067204A (en) * | 2006-12-27 | 2007-11-07 | 御林汽配(昆山)有限公司 | Technological process for lauminizing or coppering on aluminium or aluminium-magnesium alloy substrate |
| CN102601030A (en) * | 2012-03-28 | 2012-07-25 | 中信戴卡轮毂制造股份有限公司 | Topping coating process for aluminum alloy wheel |
| CN106319450A (en) * | 2015-07-01 | 2017-01-11 | 泰州市玮华涂饰科技有限公司 | Dry environment-friendly vacuum sputtering coating color golden oil technology of aluminum alloy hub |
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| CN101067204A (en) * | 2006-12-27 | 2007-11-07 | 御林汽配(昆山)有限公司 | Technological process for lauminizing or coppering on aluminium or aluminium-magnesium alloy substrate |
| CN101050531A (en) * | 2007-05-18 | 2007-10-10 | 上越铝业股份有限公司 | Procedure for sputtering mixed color on wheel rim |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109701852A (en) * | 2018-12-27 | 2019-05-03 | 安徽银龙泵阀股份有限公司 | A kind of surface defect treatment process for water pump vane |
| CN111230413A (en) * | 2020-01-14 | 2020-06-05 | 盛旺汽车零部件（昆山）有限公司 | Hub precision pattern laser spraying process |
| CN111230413B (en) * | 2020-01-14 | 2021-01-05 | 盛旺汽车零部件（昆山）有限公司 | Hub precision pattern laser spraying process |
| CN111804549A (en) * | 2020-07-07 | 2020-10-23 | 盛旺汽车零部件（昆山）有限公司 | Hub coating process |
| CN112317280A (en) * | 2020-10-28 | 2021-02-05 | 正兴车轮集团有限公司 | Environment-friendly wheel paint spraying process |
| CN113600534A (en) * | 2021-07-26 | 2021-11-05 | 张家港市晨艺电子有限公司 | Coating pretreatment device and pretreatment method for aviation aluminum parts |
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Application publication date: 20170620 |
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