CN106423805A - Aluminum alloy surface coating and method for forming coating - Google Patents
Aluminum alloy surface coating and method for forming coating Download PDFInfo
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- CN106423805A CN106423805A CN201611065859.6A CN201611065859A CN106423805A CN 106423805 A CN106423805 A CN 106423805A CN 201611065859 A CN201611065859 A CN 201611065859A CN 106423805 A CN106423805 A CN 106423805A
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- powder
- aluminum alloy
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- thickness
- resin
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Classifications
-
- 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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- 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
- B05D3/02—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 baking
- B05D3/0254—After-treatment
-
- 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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/53—Base coat plus clear coat type
- B05D7/534—Base coat plus clear coat type the first layer being let to dry at least partially before applying the second layer
-
- 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
- B05D2202/00—Metallic substrate
- B05D2202/20—Metallic substrate based on light metals
- B05D2202/25—Metallic substrate based on light metals based on Al
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Coating By Spraying Or Casting (AREA)
- Paints Or Removers (AREA)
Abstract
The invention provides an aluminum alloy surface coating and a preparation method thereof. The aluminum alloy surface coating comprises an aluminum alloy matrix, a colorful bottom powder layer and a transparent powder layer in turn, wherein the resin bottom powder is arranged on the colorful bottom powder layer; the thickness of the colorful bottom powder layer is 50-300 microns; the resin bottom powder is arranged on the transparent powder layer; the thickness of the transparent powder layer is 50-350 microns; the colorful bottom powder layer is composed of resin, auxiliaries, pigment, padding and metal powder; and/or the transparent powder layer is composed of resin, auxiliaries and curing agent. Through the spray coating of the colorful bottom powder, the paint spraying process is avoided; the functions of covering the workpiece surface defects and acquiring elegant appearance color can be realized; the intrinsic problems of long process route and long production period of the traditional technique can be solved. The aluminum alloy surface coating is capable of greatly increasing the production efficiency, reducing the material and labor cost, reducing the pollutant emission, shortening the spray coating line, reducing the floor area of the spray coating workshop, protecting the environment and easily realizing industrial large-scale popularization.
Description
Technical field
The present invention relates to metal surface treating method technical field, more particularly to a kind of aluminum alloy surface coating and formation
The method of the coating.
Background technology
Application is to ensure that wheel hub has the important process process of excellent anticorrosive and good appearance.Traditional aluminum alloy wheel
Hub coating process includes pretreatment, dusts and three operations of painting.Wherein pretreatment process purpose is to remove aluminum alloy surface oil
Dirty and oxide skin simultaneously provides the film layer for having good combination power with powder, and operation of dusting purpose is to make up the slight of surface of the work to lack
Fall into and ensure the planarization of workpiece overall appearance, painting process purpose is exquisite so as to obtain by the spraying of different paints
Outward appearance.
Traditional application general process is：Material wheel hub → pretreatment → drying → bottom powder → powder solidification → priming paint → sudden strain of a muscle is dry →
Colored paint → the colored varnish (transparent powder) → paint (powder) drying → finished product is offline.This process route length, equipment are complicated, take up room
Greatly.If a kind of new technology can be developed so as to existing production process can be overturned, realize short processes, high efficiency, low cost production then have
It is of great importance.
Content of the invention
It is therefore an object of the present invention to provide a kind of method for forming coating in aluminum alloy surface and the painting for being formed
Layer.
The invention discloses a kind of coating of aluminium alloy hub new technology, basic technology route is as follows：Material wheel hub → pre- place
Reason → drying → colored bottom powder → solidification → transparent powder → drying → finished product is offline.
In one aspect of the invention, there is provided a kind of aluminum alloy surface coating, it is characterised in that described aluminium alloy table
Finishing coat includes in order：Aluminium alloy substrate, colored bottom bisque and transparent bisque；Described colored bottom bisque is resin type bottom
Powder, its thickness is 50～300 microns；Described transparent bisque is resin type bottom powder, and its thickness is 50～350 microns.
In currently preferred aspect, described colored bottom bisque is by resin, auxiliary agent, pigment, filler and metal powder institute group
Become.
In currently preferred aspect, described transparent bisque is made up of resin, auxiliary agent and firming agent.
In currently preferred aspect, in described colored bottom bisque, resin is selected from aldehyde ketone condensation resin, polyurethane tree
One or more of the powder common resins such as fat, polyester resin, epoxy resin.
In currently preferred aspect, in described colored bottom bisque, the metal powder is aluminium powder, argentum powder or titanium valve
One or more.
In currently preferred aspect, described transparent bisque resin is selected from polyester resin, acrylic resin or asphalt mixtures modified by epoxy resin
One or more of fat.
In currently preferred aspect, the thickness of described colored bottom bisque is 100～200 microns.
In currently preferred aspect, the thickness of described transparent bisque is 80～160 microns.
In terms of present invention others, the method for preparing previously described aluminum alloy surface coating is also disclosed, its
It is characterised by, described method includes step：
(1) aluminum alloy surface is provided；
(2) described aluminum alloy surface is carried out pretreatment, and is dried；
(3) the surface color spray bottom powder that obtains step (2) is simultaneously solidified, the thickness that dusts be 50～300 microns, solidification
Temperature is 140～250 degrees Celsius, and hardening time is 5～30 minutes；
(4) transparent powder is sprayed on the surface that step (3) is obtained and is solidified, the thickness that dusts is 50～350 microns, solidification temperature
Spend for 140～250 degrees Celsius, hardening time is 5～30 minutes.
In currently preferred aspect, the pre-treatment step of step (2) includes washing, defat, washing, pickling, washing, blunt
Change, wash, close, wash, dry.
In currently preferred aspect, in step (3), surface color spray bottom powder that step (2) is obtained simultaneously is carried out solid
Change, the thickness that dusts is that 100～200 microns, solidification temperature is 160～220 degrees Celsius, and hardening time is 10～20 minutes.
In currently preferred aspect, in step (4), the surface that step (3) is obtained is sprayed transparent powder and is solidified,
The thickness that dusts is 80～160 microns, and it is 10～20 minutes 160～220 degrees Celsius, hardening time that solidification temperature is.
In currently preferred aspect, in step (3) or (4), spray gun expiratory volume 2.0-6.0m3/ h, powder/air hundred
Divide than 30%-80%, voltage 30-90kV, powder rifle height 120mm-300mm.
In currently preferred aspect, described method is completed according to following setting：(1) aluminum alloy surface is provided；
(2) described aluminum alloy surface is carried out pretreatment, and is dried；(3) the surface color spray bottom powder for obtaining step (2) is simultaneously
Solidified, the thickness that dusts is that 100～120 microns, solidification temperature is 160～180 degrees Celsius, and hardening time is 18～20 points
Clock；(4) transparent powder is sprayed on the surface that step (3) is obtained and is solidified, the thickness that dusts is that 80～100 microns, solidification temperature is
160～180 degrees Celsius, hardening time is 18～20 minutes.
In currently preferred aspect, described method is completed according to following setting：(1) aluminum alloy surface is provided；
(2) described aluminum alloy surface is carried out pretreatment, and is dried；(3) the surface color spray bottom powder for obtaining step (2) is simultaneously
Solidified, the thickness that dusts is that 160～200 microns, solidification temperature is 180～220 degrees Celsius, and hardening time is 10～14 points
Clock；(4) transparent powder is sprayed on the surface that step (3) is obtained and is solidified, the thickness that dusts is that 130～160 microns, solidification temperature is
180～220 degrees Celsius, hardening time is 10～14 minutes.
In currently preferred aspect, described method is completed according to following setting：(1) aluminum alloy surface is provided；
(2) described aluminum alloy surface is carried out pretreatment, and is dried；(3) the surface color spray bottom powder for obtaining step (2) is simultaneously
Solidified, the thickness that dusts is that 120～160 microns, solidification temperature is 180～200 degrees Celsius, and hardening time is 14～18 points
Clock；(4) transparent powder is sprayed on the surface that step (3) is obtained and is solidified, the thickness that dusts is that 100～130 microns, solidification temperature is
180～200 degrees Celsius, hardening time is 14～18 minutes.
In currently preferred aspect, described step (3) and (4), not using following mode of dusting carrying out：Adopt
With electrostatic gun, spray gun expiratory volume 2.0-6.0m3/ h, percentage ratio 30%-80%, voltage 30-90kV, powder rifle height 120mm-
300mm；Spray gun quantity：3-12 handle；Workpiece entity temperature reaches 150-200 DEG C, is kept for 10-20 minute.
The advantage of the coating of the present invention is：Coating color is full, metal sense obvious, can achieve imitative electroplating effect.
The advantage of the method for the present invention is also resided in：By the spraying of colored bottom powder, painting process is saved, while realizing covering
Surface Flaw and the effect of acquisition attractive appearance color, traditional handicraft process route length, long the production cycle before solving
Intrinsic problem.The present invention substantially increases production efficiency, reduces material, cost of labor and pollutant emission, shortens spraying
Line, reduces painting workshop floor space, environmental friendliness, it is easy to which industrialization is carried out on a large scale.
Specific embodiment
The present invention will be described to enumerate a part of example below, it is necessary to points out that specific examples below is served only for this
Invention is described further, and does not represent the restriction of the scope of the present invention.Some non-intrinsically safes that other people make according to the present invention
Modification and adjustment still fall within protection scope of the present invention.
Except additionally illustrated, material and facility used in the present invention is as follows：
Colored bottom powder：Colored bottom powder, which is purchased from Guangzhou Qing Tian powder coating Industrial Co., Ltd., article No. be 10360,
10363、10369.
Transparent powder：Transparent powder with acrylic resin as main component, which is purchased from Guangzhou, and to hold up day powder coating industry limited
Company, article No. is 10149.
The dusting device for using is the automatic powder spray gun equipment of PEA-C4HiCoat model, and which is purchased from German waag nail (unit of length)
Company.
The solidification equipment for using is the powdery paints drying plant of PC57807 model, and which is purchased from Beijing tiopropamine plug and thinks application
Equipment center.
Embodiment 1
A kind of coating of aluminium alloy hub new technology, basic technology route is as follows：
(1) wheel hub aluminum alloy surface is provided；(2) described aluminum alloy surface is carried out pretreatment, and is dried；(3)
Surface color spray bottom powder that step (2) is obtained simultaneously is solidified, and it is 160 that the thickness that dusts is 100～120 microns, solidification temperature
Degree Celsius, hardening time is 20 minutes；(4) transparent powder is sprayed on the surface that step (3) is obtained and is solidified, the thickness that dusts is 80
Micron, it is 20 minutes 180 degrees Celsius, hardening time that solidification temperature is.
The aluminium alloy wheel hub of the technique productions, there is slight orange peel phenomenon in wheel hub back of the body chamber, and other positions zero defect, according to general
Company wheel system aluminum-alloy wheel appearance standard GM9591083, judges its compound appearance standard.
Embodiment 2
A kind of coating of aluminium alloy hub new technology, basic technology route is as follows：
(1) aluminum alloy surface is provided；(2) described aluminum alloy surface is carried out pretreatment, and is dried；(3) will step
Suddenly (2) obtain surface color spray bottom powder is simultaneously solidified, and it is 220 Celsius that the thickness that dusts is 160～200 microns, solidification temperature
Degree, hardening time is 10 minutes；(4) surface for obtaining step (3) is sprayed transparent powder and is solidified, and the thickness that dusts is 130～
160 microns, it is 10 minutes 220 degrees Celsius, hardening time that solidification temperature is.The colored bottom powder article No. for using is 10363.
The aluminium alloy wheel hub of the technique productions, has slight sagging phenomenon at outer rim, other positions zero defect, according to general
Company wheel system aluminum-alloy wheel appearance standard GM9591083, judges its compound appearance standard.
Embodiment 3
A kind of coating of aluminium alloy hub new technology, basic technology route is as follows：
(1) aluminum alloy surface is provided；(2) described aluminum alloy surface is carried out pretreatment, and is dried；(3) will step
Suddenly (2) obtain surface color spray bottom powder is simultaneously solidified, and it is 200 Celsius that the thickness that dusts is 120～160 microns, solidification temperature
Degree, hardening time is 14 minutes；(4) surface for obtaining step (3) is sprayed transparent powder and is solidified, and the thickness that dusts is 100～
130 microns, it is 14 minutes 200 degrees Celsius, hardening time that solidification temperature is.The colored bottom powder article No. for using is 10363.
The aluminium alloy wheel hub of the technique productions, the equal zero defect in position such as front, window, back of the body chamber, according to General Corporation's wheel
System aluminum-alloy wheel appearance standard GM9591083, judges its compound appearance standard.
Claims (10)
1. a kind of aluminum alloy surface coating, it is characterised in that described aluminum alloy surface coating includes in order：Aluminium alloy base
Matter, colored bottom bisque and transparent bisque；Described colored bottom bisque is resin type bottom powder, and its thickness is 50～300 microns；Described
Transparent bisque be resin type bottom powder, its thickness be 50～350 microns；Described colored bottom bisque by resin, auxiliary agent, pigment,
Filler and metal powder are constituted, and/or, described transparent bisque is made up of resin, auxiliary agent and firming agent.
2. aluminum alloy surface coating according to claim 1, it is characterised in that in described colored bottom bisque, resin
One or more selected from the powder common resins such as aldehyde ketone condensation resin, polyurethane resin, polyester resin, epoxy resin.
3. aluminum alloy surface coating according to claim 1, it is characterised in that in described colored bottom bisque, described
Metal powder is one or more of aluminium powder, argentum powder or titanium valve.
4. aluminum alloy surface coating according to claim 1, it is characterised in that described transparent bisque resin is selected from polyester
Resin, one or more of acrylic resin or epoxy resin.
5. aluminum alloy surface coating according to claim 1, it is characterised in that the thickness of described colored bottom bisque is
100～200 microns, and/or, the thickness of described transparent bisque is 80～160 microns.
6. the method for being used for preparing the aluminum alloy surface coating any one of claim 1-5, it is characterised in that described
Method includes step：(1) aluminum alloy surface is provided；(2) described aluminum alloy surface is carried out pretreatment, and is dried；(3)
Surface color spray bottom powder that step (2) is obtained simultaneously is solidified, the thickness that dusts be 50～300 microns, solidification temperature be 140～
250 degrees Celsius, hardening time is 5～30 minutes；(4) transparent powder is sprayed on the surface that step (3) is obtained and is solidified, thickness of dusting
Spend for 50～350 microns, it is 5～30 minutes 140～250 degrees Celsius, hardening time that solidification temperature is；Also, step (2) is pre-
Process step includes washing, defat, washing, pickling, washing, passivation, washing, closing, washing, dries.
7. method according to claim 6, it is characterised in that in step (3), the surface aerograph that step (2) is obtained
Color bottom powder is simultaneously solidified, and the thickness that dusts is that 100～200 microns, solidification temperature is 160～220 degrees Celsius, and hardening time is 10
～20 minutes.
8. method according to claim 6, it is characterised in that in step (4), the surface spray that step (3) is obtained is saturating
Bright powder is simultaneously solidified, the thickness that dusts be 80～160 microns, solidification temperature be 160～220 degrees Celsius, hardening time be 10～
20 minutes.
9. method according to claim 6, it is characterised in that in step (3) or (4), spray gun expiratory volume 2.0-6.0m3/
H, powder/air percentage ratio 30%-80%, voltage 30-90kV, powder rifle height 120mm-300mm.
10. method according to claim 6, it is characterised in that described method is come according to the one kind in following setting
Complete：Set A：(1) aluminum alloy surface is provided；(2) described aluminum alloy surface is carried out pretreatment, and is dried；(3) will
Surface color spray bottom powder that step (2) is obtained simultaneously is solidified, the thickness that dusts be 100～120 microns, solidification temperature be 160～
180 degrees Celsius, hardening time is 18～20 minutes；(4) transparent powder is sprayed on the surface that step (3) is obtained and is solidified, dust
Thickness is 80～100 microns, and it is 18～20 minutes 160～180 degrees Celsius, hardening time that solidification temperature is；Set B：At this
Bright preferred aspect, described method is completed according to following setting：(1) aluminum alloy surface is provided；(2) described aluminum is closed
Gold surface carries out pretreatment, and is dried；(3) the surface color spray bottom powder that obtains step (2) is simultaneously solidified, thickness of dusting
Spend for 160～200 microns, it is 10～14 minutes 180～220 degrees Celsius, hardening time that solidification temperature is；(4) step (3) is obtained
To surface spray transparent powder solidified, the thickness that dusts is that 130～160 microns, solidification temperature is 180～220 degrees Celsius, Gu
The change time is 10～14 minutes；And set C：Described method is completed according to following setting：(1) aluminium alloy table is provided
Face；(2) described aluminum alloy surface is carried out pretreatment, and is dried；(3) the surface color spray bottom that step (2) is obtained
Powder is simultaneously solidified, and the thickness that dusts is that 120～160 microns, solidification temperature is 180～200 degrees Celsius, and hardening time is 14～18
Minute；(4) transparent powder is sprayed on the surface that step (3) is obtained and is solidified, the thickness that dusts is 100～130 microns, solidification temperature
For 180～200 degrees Celsius, hardening time is 14～18 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611065859.6A CN106423805A (en) | 2016-11-28 | 2016-11-28 | Aluminum alloy surface coating and method for forming coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611065859.6A CN106423805A (en) | 2016-11-28 | 2016-11-28 | Aluminum alloy surface coating and method for forming coating |
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| CN106423805A true CN106423805A (en) | 2017-02-22 |
Family
ID=58218930
Family Applications (1)
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| CN201611065859.6A Pending CN106423805A (en) | 2016-11-28 | 2016-11-28 | Aluminum alloy surface coating and method for forming coating |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106945446A (en) * | 2017-02-28 | 2017-07-14 | 中信戴卡股份有限公司 | It is a kind of to be used for the method in aluminum alloy surface bat printing pattern |
| CN108546910A (en) * | 2018-03-15 | 2018-09-18 | 中信戴卡股份有限公司 | A kind of method wheel hub ageing-resistant plated film and form the protective film |
| CN109848009A (en) * | 2019-01-23 | 2019-06-07 | 浙江飞剑科技有限公司 | A kind of stainless-steel vacuum vessel surface processing method of band solid cloth sense |
| CN110252622A (en) * | 2019-06-25 | 2019-09-20 | 中信戴卡股份有限公司 | A kind of spraying method of aluminium alloy covered, aluminium alloy wheel hub and aluminium alloy wheel hub |
| CN110670013A (en) * | 2019-10-14 | 2020-01-10 | 中信戴卡股份有限公司 | Surface treatment method of aluminum alloy hub and aluminum alloy hub |
| CN110724933A (en) * | 2019-11-07 | 2020-01-24 | 中国电子科技集团公司第三十八研究所 | Preparation method of aluminum alloy surface thermal control coating |
| CN111849287A (en) * | 2020-08-03 | 2020-10-30 | 中信戴卡股份有限公司 | Organic coating with invisible effect |
| CN114345653A (en) * | 2022-01-17 | 2022-04-15 | 三门峡戴卡轮毂制造有限公司 | Hub coating method |
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| CN102909168A (en) * | 2012-11-15 | 2013-02-06 | 中信戴卡股份有限公司 | Improved finish turning wheel coating process |
| CN105505142A (en) * | 2015-12-17 | 2016-04-20 | 滁州市友邦涂装有限公司 | Super-weatherability powder coating for electrostatic spraying |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106945446A (en) * | 2017-02-28 | 2017-07-14 | 中信戴卡股份有限公司 | It is a kind of to be used for the method in aluminum alloy surface bat printing pattern |
| CN108546910A (en) * | 2018-03-15 | 2018-09-18 | 中信戴卡股份有限公司 | A kind of method wheel hub ageing-resistant plated film and form the protective film |
| CN109848009A (en) * | 2019-01-23 | 2019-06-07 | 浙江飞剑科技有限公司 | A kind of stainless-steel vacuum vessel surface processing method of band solid cloth sense |
| CN109848009B (en) * | 2019-01-23 | 2022-02-15 | 浙江飞剑科技有限公司 | Surface treatment method for stainless steel vacuum container with three-dimensional cloth feeling |
| CN110252622A (en) * | 2019-06-25 | 2019-09-20 | 中信戴卡股份有限公司 | A kind of spraying method of aluminium alloy covered, aluminium alloy wheel hub and aluminium alloy wheel hub |
| CN110670013A (en) * | 2019-10-14 | 2020-01-10 | 中信戴卡股份有限公司 | Surface treatment method of aluminum alloy hub and aluminum alloy hub |
| CN110724933A (en) * | 2019-11-07 | 2020-01-24 | 中国电子科技集团公司第三十八研究所 | Preparation method of aluminum alloy surface thermal control coating |
| CN111849287A (en) * | 2020-08-03 | 2020-10-30 | 中信戴卡股份有限公司 | Organic coating with invisible effect |
| CN114345653A (en) * | 2022-01-17 | 2022-04-15 | 三门峡戴卡轮毂制造有限公司 | Hub coating method |
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Application publication date: 20170222 |