US20150064482A1 - Vehicle body and method for coating a vehicle body - Google Patents
Vehicle body and method for coating a vehicle body Download PDFInfo
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- US20150064482A1 US20150064482A1 US14/166,301 US201414166301A US2015064482A1 US 20150064482 A1 US20150064482 A1 US 20150064482A1 US 201414166301 A US201414166301 A US 201414166301A US 2015064482 A1 US2015064482 A1 US 2015064482A1
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- United States
- Prior art keywords
- basecoat
- coat
- metallic substrate
- clearcoat
- foundation
- Prior art date
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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
- 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
- B05D7/56—Three layers or more
- B05D7/57—Three layers or more the last layer being a clear coat
- B05D7/572—Three layers or more the last layer being a clear coat all layers being cured or baked together
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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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
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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
- 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
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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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/82—After-treatment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31678—Of metal
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
Abstract
A method can be used to coat a vehicle body. The method includes: (a) providing a metallic substrate; (b) applying a foundation coat over the metallic substrate; (c) applying a basecoat over the foundation coat; (d) applying a clearcoat over the basecoat; and (e) heating the metallic substrate, the foundation coat, the basecoat, and the clearcoat simultaneously in order to cure the foundation coat, the basecoat, and the clearcoat. The foundation coat is inherently UV stable and is configured to protect the vehicle body against corrosion, and bonds the metallic substrate to the basecoat and the clearcoat. A vehicle body includes a metallic substrate, a foundation coat bonded to the metallic substrate, a basecoat disposed over the foundation coat, and a clearcoat disposed over the basecoat.
Description
- This application claims the benefit of U.S. Provisional Application No. 61/870,278, filed Aug. 27, 2013, which is hereby incorporated by reference in its entirety.
- The present disclosure relates to a vehicle body and a method for coating a vehicle body.
- Vehicle bodies can be coated to provide, among other things, an aesthetically pleasing appearance. The coatings applied to a vehicle body can not only provide a desirable aesthetic appearance for the vehicle, but can also protect the vehicle body from the elements (e.g., rain).
- Automotive vehicle bodies may include a metallic substrate and are typically coated with five layers or coats, namely: (a) a phosphate coat; (b) an electro-deposition coat (i.e., e-coat); (c) a primer; (d) a basecoat; and (e) a clearcoat. The phosphate coat promotes adhesion between the paint layers (e.g., e-coat, primer, basecoat, and clearcoat) and the metallic substrate (e.g., steel or aluminum). As used herein, the terms “electro-deposition coat” and “e-coat” refer to a coating created using any suitable electro-deposition operation or process (i.e., an anti-corrosion electroplating bath). The e-coat provides corrosion protection. As used herein, the term “primer” means a coating capable of protecting the metallic substrate and the other coatings (e.g., phosphate coat, e-coat, basecoat, and clearcoat) against ultraviolet (UV) radiation from the sun. The primer therefore provides UV radiation resistance. In this disclosure, the term “basecoat” means a polymeric coating including a color pigment and can impart a color (e.g., red) to the vehicle body. The basecoat therefore provides color. As used herein, the term “clearcoat” refers to a polymeric coating that can provide gloss and protection to the vehicle body. The clearcoat therefore enhances the appearance of the vehicle body and can provide protection against scratches and the environment. It is useful, however, to minimize the number of coats in a vehicle body in order to minimize manufacturing costs. Specifically, it is useful to develop a method of coating a vehicle body that employs a single coat that provides adhesion promotion, corrosion protection, and UV radiation resistance, and thereby replaces the phosphate coat, e-coat, and possibly primer.
- The present disclosure relates to a method for coating a vehicle body. The method includes the following steps: (a) providing a metallic substrate; (b) applying a foundation coat over the metallic substrate; (c) applying an optional primer coat over the foundation coat; (d) applying a basecoat over the foundation or the optional primer coat; (e) applying a clearcoat over the basecoat; and (f) heating the metallic substrate, the foundation coat, the optional primer coat, the basecoat, and the clearcoat simultaneously in order to cure the foundation coat, the basecoat, and the clearcoat. It may also be necessary to cure the foundation coat and the primer coat first with a cure oven before applying the basecoat and the clearcoat. Once cured, the foundation coat is configured to protect the vehicle body against corrosion, and bonds the metallic substrate to the basecoat and the clearcoat.
- The present disclosure also relates to vehicle bodies. In an embodiment, the vehicle body includes a metallic substrate, a foundation coat bonded to the metallic substrate, a basecoat disposed over the foundation coat, and a clearcoat disposed over the basecoat. The foundation coat is disposed between the metallic substrate and the basecoat. The basecoat is disposed between the clearcoat and the foundation coat. The foundation coat is configured to protect the vehicle body against ultraviolet radiation and corrosion, and bonds the metallic substrate to the basecoat and the clearcoat.
- In another embodiment, the method for coating a metallic substrate includes the following steps: (a) dipping the metallic substrate in a tank containing a solution including a foundation coat in order to apply the foundation coat over the metallic substrate; (b) applying a basecoat over the foundation coat; (c) applying a clearcoat over the basecoat; and (d) heating the metallic substrate, the foundation coat, the basecoat, and the clearcoat simultaneously in order to cure the foundation coat, the basecoat, and the clearcoat. The foundation coat is configured to be UV stable and to protect the metallic substrate against corrosion, and bonds the metallic substrate to the subsequent layers of paint. A material or coat can be inherently UV stable if the material or coat does not crack or disintegrate when attacked by ultraviolet radiation. In this method, the metallic substrate does not undergo an electro-deposition process, and a primer coat may be applied over the foundation coat if it is required to achieve certain quality requirement such as a smooth paint finish.
- The above features and advantages, and other features and advantages, of the present invention are readily apparent from the following detailed description of some of the best modes and other embodiments for carrying out the invention, as defined in the appended claims, when taken in connection with the accompanying drawings.
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FIG. 1 is a schematic side view of a vehicle including a vehicle body; -
FIG. 2 is a schematic illustration of the vehicle body shownFIG. 1 , wherein the vehicle body includes a metallic substrate and coatings in accordance with an embodiment of the present disclosure; -
FIG. 3 is a flowchart of a method for coating a vehicle body in accordance with an embodiment of the present disclosure; -
FIG. 4 is a flowchart of a method for coating a vehicle body in accordance with another embodiment of the present disclosure; and -
FIG. 5 is a schematic illustration of a vehicle body including a metallic substrate and coatings in accordance with another embodiment of the present disclosure. - Referring now to the drawings, wherein the like numerals indicate corresponding parts throughout the several views,
FIG. 1 schematically illustrates avehicle 10 such as a car or a truck. In the depicted embodiment, thevehicle 10 includes avehicle body 12 andwheels 13 operatively coupled to thevehicle body 12. Atire 15 is operatively coupled to eachwheel 13. AlthoughFIG. 1 illustrates a car, it is envisioned that thevehicle 10 may alternatively be a motorcycle or another kind of vehicle. -
FIG. 2 schematically illustrates a portion of thevehicle body 12 in cross-sectional view. Thevehicle body 12 includes a substrate orbase material 14 wholly or partly made of a metallic material such as steel or aluminum. Thesubstrate 14 is therefore referred to as a metallic substrate. Alternatively, thesubstrate 14 may be referred to as a workpiece. In addition to themetallic substrate 14, thevehicle body 12 includes afoundation coat 16 directly applied by using a dipping process over themetallic substrate 14. As used herein, the term “foundation coat” means a polymeric coating that is inherently UV stable and is capable of protecting thevehicle body 12 against corrosion, and helps bond themetallic substrate 14 to other coatings. The term “inherently UV stable” means that the material forming thefoundation coat 16, by itself and without any UV stable additives, does not crack or disintegrate when attacked by ultraviolet radiation. As a non-limiting example, thefoundation coat 16 can be rated UV-8. A material or coat rated UV-8 withstood 8000 hours of exposure to UV light before the elongation at break was reduced to 50% of the original value during testing in a Weather-OMeter. UV ratings (e.g., UV-X) are expressed as a multiple of 1000 hours of exposure until a chosen mechanical property (e.g., elongation at break or tensile strength) reaches 50% of the original value (i.e., the value of the mechanical property before the material was subjected to UV light.) As a non-limiting example, the UV rate of thefoundation coat 16 may range between UV-5 and UV-10. As a non-limiting example, thefoundation coat 16 can protect thevehicle body 12 against corrosion such the corrosion rate (as expressed in mils penetration per year (mpy)) ranges between the 0.9 and 10 mpy. For example, the corrosion rate (as expressed in mpy) may be 3 mpy. - The
foundation coat 16 is chemically bonded to themetallic substrate 14. The term “chemically bonded” means that a chemical covalent or ionic bond couples thefoundation coat 16 with themetallic substrate 14. Thefoundation coat 16 is therefore configured to establish a strong adhesion bond with themetallic substrate 14. As a non-limiting example, the bond energy of the chemical bond between thefoundation coat 16 and themetallic substrate 14 may range between 600 and 800 kilojoule per mol (kJ/mol). As a non-limiting example, the bond energy of the chemical bond between thefoundation coat 16 and themetallic substrate 14 may be 700 kJ/mol. It is contemplated that thefoundation coat 16 may be one of the coatings sold by COVAL MOLECULAR COATINGS such as the coating sold under the trade name COVAL METAL COAT™. It has to be applied by a dip coating process in order to provide 100% coverage for both the interior and exterior surfaces of the metallic substrates 14 (vehicle bodies). - The
vehicle body 12 further includes abasecoat 18 directly applied over thefoundation coat 16. In this disclosure, the term “basecoat” means a polymeric coating including at least one color pigment. Accordingly, thebasecoat 18 can impart a color (e.g., red) to thevehicle body 12. The color of thebasecoat 18 is mainly a function of the pigments used. Thefoundation coat 16 is disposed between themetallic substrate 14 and thebasecoat 18. Thebasecoat 18 may be wholly or partly made of acrylics, vinyls, polyurethanes, polycarbonates, polyesters, alkyds, polyepoxy, polysiloxanes, resins, and combinations thereof - Further, the
vehicle body 12 includes a clearcoat 20 directly applied over thebasecoat 18. As used herein, the term “clearcoat” refers to a polymeric coating that can provide gloss and protection to thevehicle body 12. Theclearcoat 20 is therefore used to provide gloss and protection to thevehicle body 12. Thebasecoat 18 is disposed between the clearcoat 20 and thefoundation coat 16. As a non-limiting example, theclearcoat 20 may include a polymer such as an acrylic based material. For example, theclearcoat 20 can be formulated based on the following: hydroxyl acrylic, polyester carbamate acrylic, polyester, epoxy, a blocked isocyanate system, or combinations thereof -
FIG. 3 includes a flowchart illustrating amethod 100 of coating thevehicle body 12. Specifically, in thismethod 100, themetallic substrate 14 of thevehicle body 12 is coated with different coatings. Themethod 100 begins atstep 102 and includes at least three coats and one bake. As used herein, the term “bake” means a process in which at least one polymer coat is heated in an oven to cure that polymeric coat. Step 102 entails providing themetallic substrate 14, which may be a vehicle body-in-white (BIW). As used herein, the term “vehicle BIW” refers to the sheet metal components of the vehicle body that welded together including swing metals (e.g. doors, hood, and decklid), but without moving parts (e.g., wheels and tires), the motor, chassis sub-assemblies, or trim (e.g., glass, seats, upholstery, electronics, etc.) and before painting. The metallic substrate 14 (e.g., vehicle BIW) may be supplied using a conveyer. At this point, all the sealers and adhesives in the vehicle BIW are fully cured or gelled. Themethod 100 then continues to step 104. - Step 104 entails cleaning the metallic substrate 14 (e.g., vehicle BIW). At
step 102, for example, the vehicle BIW may undergo a multi-stage cleaning process in order to remove contamination from the entire vehicle BIW. Water and cleaner may be sprayed on the vehicle BIW to clean it. After themetallic substrate 14 has been cleaned, themethod 100 continues to step 106. - Step 106 entails applying the
foundation coat 16 directly on the metallic substrate 14 (e.g., vehicle BIW). To do so, the metallic substrate 14 (e.g., vehicle BIW) may be dipped in a tank containing a solution including thefoundation coat 16. It is contemplated that the vehicle BIW may be dipped into a tank containing thefoundation coat 16 in order to apply thefoundation coat 16 to all the interior and exterior surfaces of the vehicle BIW. Thisfoundation coat 16 provides corrosion protection, UV resistance, and promotes adhesion between the coats (i.e.,basecoat 18 and clearcoat 20) and themetallic substrate 14. At this stage, thefoundation coat 16 is not cured. After applying thefoundation coat 16 on themetallic substrate 14, themethod 100 proceeds to step 108. - Step 108 entails applying the
basecoat 18 directly over thefoundation coat 16. Thebasecoat 18 can be applied over thefoundation coat 16 before thefoundation coat 16 is cured. To do so, the metallic substrate 14 (e.g., vehicle BIW) is moved into a basecoat spraying booth. While in the basecoat spraying booth, thebasecoat 18 is sprayed over thefoundation coat 16 that is already on themetallic substrate 14. At this stage, thebasecoat 18 is not cured. Accordingly, thebasecoat 18 is applied over thefoundation coat 16 before thefoundation coat 16 is cured. However,step 108 may further include heating thebasecoat 18 after it has been applied over thefoundation coat 16 using, for example, a heated flash oven. Themethod 100 then continues to step 110. - Step 110 entails applying the
clearcoat 20 directly over thebasecoat 18. Theclearcoat 20 can be applied over thebasecoat 18 before thebasecoat 18 is cured. Atstep 110, the metallic substrate 14 (e.g., vehicle BIW) can be advanced to a clearcoat spraying booth. While in the clearcoat spraying booth, theclearcoat 20 is sprayed on thebasecoat 18 that is already disposed over thefoundation coat 16 andmetallic substrate 14. At this stage, theclearcoat 20 is not cured. After applying theclearcoat 20 over thebasecoat 18, themethod 100 proceeds to step 112. - Step 112 entails heating the metallic substrate 14 (e.g., vehicle BIW),
foundation coat 16,basecoat 18, and clearcoat 20 simultaneously in order to cure all the coats (i.e.,foundation coat 16,basecoat 18, and clearcoat 20). A typical heating temperature may be 280 degrees Fahrenheit for 30 minutes. Thefoundation coat 16,basecoat 18, andclearcoat 20 may be collectively referred to as paint layers or coatings. It is envisioned that the entire vehicle body 12 (i.e., themetallic substrate 14,foundation coat 16,basecoat 18, and clearcoat 20) may be baked in an oven in order to cure all the coats. For example, the vehicle BIW can be positioned in an oven in order to cure thefoundation coat 16,basecoat 18, and clearcoat 20 in one bake. As discussed above, the term “bake” means a process in which a polymer coat is heated in an oven to cure that polymeric coat. Thevehicle body 12 is then removed from the oven, and themethod 100 then continues to step 114. - Step 114 entails inspecting the
vehicle body 12 to identify defects. For example, atstep 114, thevehicle body 12 is subjected to a quality inspection. If thevehicle body 12 passes the quality inspection, thevehicle body 12 is sent to a general assembly area atstep 116. At the general assembly area (see step 116), thevehicle body 12 is coupled to the other components of thevehicle 10. Conversely, if thevehicle body 12 fails the quality inspection because, for example, some defects are identified, themethod 100 proceeds to step 118. Atstep 118, the identified defects are repaired. These repairs may be conducted in-line by re-routing thevehicle body 12 back to the basecoat spraying booth atstep 108 as shown inFIG. 4 . Alternatively, the repairs may be conducted offline after the quality inspection atstep 114, and thevehicle body 12 is sent to the general assembly area after the defects have been repaired. In themethod 100, themetallic substrate 14 does not undergo an electro-deposition (ELPO) operation or process (i.e., an anti-corrosion electroplating bath) in order to create an ELPO coat or layer, which may be made of an epoxy based material. In other words, the metallic substrate 14 (or any other part of the vehicle body 12) is not subjected to an ELPO operation. The ELPO coat may be referred to as an electro-deposition coat, an electrophoretic deposition (EPD) coat, or an e-coat. Accordingly, thevehicle body 12 does not include an electro-deposition coat. As used herein, an “electro-deposition coat” means a coating created using any suitable electro-deposition operation (i.e., an anti-corrosion electroplating bath). -
FIG. 4 is a flowchart illustrating amethod 200 of coating a vehicle body 212 (FIG. 5 ) in accordance with another embodiment of the present disclosure, andFIG. 5 shows a schematic illustration of avehicle body 212 made using themethod 200. Themethod 200 is identical to themethod 100 described above but includes two additional steps (i.e., steps 202 and 204). In the interest of brevity, only steps 202 and 204 are described in detail below. - Step 202 entails applying a primer coat 214 (
FIG. 5 ) directly over thefoundation coat 16 after applying thefoundation coat 16 to the metallic substrate 14 (e.g., vehicle BIW) atstep 106. As used herein, the term “primer coat” means a coating capable of protecting themetallic substrate 14 and the other coats (i.e.,foundation coat 16,basecoat 18, and clearcoat 20) against UV radiation exposure. Atstep 202, the metallic substrate 14 (e.g., vehicle BIW) is positioned in a primer spraying booth. While in the primer spraying booth, theprimer coat 214 is sprayed directly over thefoundation coat 16 that is already disposed on themetallic substrate 14. Themethod 200 then proceeds to step 204. - Step 204 entails heating the metallic substrate 14 (e.g., vehicle BIW) and the
primer coat 214 in order to cure the primer coat 214 (FIG. 5 ). To do so, the metallic substrate 14 (e.g., vehicle BIW) and theprimer coat 214 may be placed in an oven in order to bake theprimer coat 214. After theprimer coat 214 is cured, themethod 200 proceeds to step 108, which entails applying thebasecoat 18 directly over theprimer coat 214. In themethod 200, if an inline repair is conducted atstep 118, themethod 200 returns to step 202. -
FIG. 5 schematically illustrates a portion of thevehicle body 212 in accordance with another embodiment of the present disclosure. Thevehicle body 212 can be made using themethod 200 described above and is substantially identical to thevehicle body 12 shown inFIG. 2 . However, thevehicle body 212 includes theprimer coat 214 in addition to themetallic substrate 14 and the coats described above with respect toFIG. 2 (i.e.,foundation coat 16,basecoat 18, and clearcoat 20). Theprimer coat 214 is directly disposed over thefoundation coat 16. In particular, theprimer coat 214 is disposed between thefoundation coat 16 andbasecoat 18. Theprimer coat 214 may be needed in order to mask out surface imperfections on the metallic substrates of vehicle bodies and therefore improve the smoothness of the final paint finish. This coat may be needed in order to achieve a higher level of paint appearance quality for certain premium vehicles. - The detailed description and the drawings or figures are supportive and descriptive of the invention, but the scope of the invention is defined solely by the claims. While some of the best modes and other embodiments for carrying out the claimed invention have been described in detail, various alternative designs and embodiments exist for practicing the invention defined in the appended claims.
Claims (20)
1. A method for coating a vehicle body, the method comprising:
providing a metallic substrate;
applying a foundation coat on the metallic substrate;
applying a basecoat over the foundation coat;
applying a clearcoat over the basecoat; and
heating the metallic substrate, the foundation coat, the basecoat, and the clearcoat simultaneously in order to cure the foundation coat, the basecoat, and the clearcoat;
wherein the foundation coat is inherently ultraviolet (UV) stable and is configured to protect the metallic substrate against corrosion, and bonds the metallic substrate to the basecoat and the clearcoat.
2. The method of claim 1 , wherein the metallic substrate is not subjected to an electro-deposition (ELPO) operation.
3. The method of claim 1 , wherein the basecoat is applied over the foundation coat before the foundation coat is cured.
4. The method of claim 1 , wherein the foundation coat is chemically bonded to the metallic substrate after heating the metallic substrate, the foundation coat, the basecoat, and the clearcoat.
5. The method of claim 1 , wherein applying the foundation coat includes dipping the metallic substrate in a tank containing a solution including the foundation coat.
6. The method of claim 1 , wherein the clearcoat is applied over the basecoat before the basecoat is cured.
7. The method of claim 1 , wherein applying the basecoat includes spraying the basecoat over the foundation coat after the foundation coat has been applied on the metallic substrate.
8. The method of claim 1 , wherein applying the clearcoat includes spraying the clearcoat over the basecoat after the basecoat has been applied over the foundation coat.
9. The method of claim 1 , wherein heating the metallic substrate includes positioning the vehicle body in an oven after applying the foundation coat, the basecoat, and the clearcoat, and heating the vehicle body using the oven.
10. The method of claim 1 , further comprising inspecting the vehicle body after heating the metallic substrate, the foundation coat, the basecoat, and the clearcoat.
11. The method of claim 1 , further comprising applying a primer coat over the foundation coat before applying the basecoat.
12. The method of claim 1 , further comprising heating the metallic substrate and the primer coat before applying the basecoat in order to cure the primer coat.
13. A vehicle body, comprising:
a metallic substrate;
a foundation coat bonded to the metallic substrate;
a basecoat disposed over the foundation coat, wherein the foundation coat is disposed between the metallic substrate and the basecoat;
a clearcoat disposed over the basecoat, wherein the basecoat is disposed between the clearcoat and the foundation coat; and
wherein the foundation coat is inherently ultraviolet (UV) stable and is configured to protect the metallic substrate against corrosion, and bonds the metallic substrate to the basecoat and the clearcoat.
14. The vehicle body of claim 13 , wherein the vehicle body does not include an electro-deposition coat.
15. The vehicle body of claim 13 , further comprising a primer coat disposed over the foundation coat.
16. The vehicle body of claim 15 , wherein the primer coat is disposed between the foundation coat and the basecoat.
17. The vehicle body of claim 13 , wherein the basecoat includes a color pigment.
18. The vehicle body of claim 13 , wherein the clearcoat comprises an acrylic based material.
19. A method for coating a metallic substrate, the method comprising:
dipping the metallic substrate in a tank containing a solution including a foundation coat in order to apply the foundation coat over the metallic substrate;
applying a basecoat over the foundation coat;
applying a clearcoat over the basecoat;
heating the metallic substrate, the foundation coat, the basecoat, and the clearcoat simultaneously in order to cure the foundation coat, the basecoat, and the clearcoat;
wherein the foundation coat is inherently ultraviolet (UV) stable and is configured to protect the metallic substrate against corrosion, and bonds the metallic substrate to the basecoat and the clearcoat; and
wherein the metallic substrate does not undergo an electro-deposition process.
20. The method of claim 19 , further comprising applying a primer coat after applying the foundation coat but before applying the basecoat.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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US14/166,301 US20150064482A1 (en) | 2013-08-27 | 2014-01-28 | Vehicle body and method for coating a vehicle body |
DE112014003935.7T DE112014003935T5 (en) | 2013-08-27 | 2014-07-03 | Vehicle body and method for coating a vehicle body |
CN201480047818.7A CN105492208B (en) | 2013-08-27 | 2014-07-03 | Vehicle body and the method for application vehicle body |
PCT/US2014/045361 WO2015030934A1 (en) | 2013-08-27 | 2014-07-03 | Vehicle body and method for coating a vehicle body |
Applications Claiming Priority (2)
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US201361870278P | 2013-08-27 | 2013-08-27 | |
US14/166,301 US20150064482A1 (en) | 2013-08-27 | 2014-01-28 | Vehicle body and method for coating a vehicle body |
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US20150064482A1 true US20150064482A1 (en) | 2015-03-05 |
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US14/166,301 Abandoned US20150064482A1 (en) | 2013-08-27 | 2014-01-28 | Vehicle body and method for coating a vehicle body |
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US (1) | US20150064482A1 (en) |
CN (1) | CN105492208B (en) |
DE (1) | DE112014003935T5 (en) |
WO (1) | WO2015030934A1 (en) |
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US10160005B2 (en) | 2015-05-28 | 2018-12-25 | GM Global Technology Operations LLC | Coated articles and methods of making the same |
US10259005B2 (en) | 2016-09-16 | 2019-04-16 | GM Global Technology Operations LLC | Rotational paint curing device |
US10577710B2 (en) | 2017-11-06 | 2020-03-03 | GM Global Technology Operations LLC | Method of coating body-in-white structure having at least one surface comprising an aluminum alloy |
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WO2018028785A1 (en) * | 2016-08-10 | 2018-02-15 | Toyota Motor Europe | Vehicle body part and method of forming a vehicle body part |
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- 2014-01-28 US US14/166,301 patent/US20150064482A1/en not_active Abandoned
- 2014-07-03 CN CN201480047818.7A patent/CN105492208B/en not_active Expired - Fee Related
- 2014-07-03 WO PCT/US2014/045361 patent/WO2015030934A1/en active Application Filing
- 2014-07-03 DE DE112014003935.7T patent/DE112014003935T5/en not_active Ceased
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10160005B2 (en) | 2015-05-28 | 2018-12-25 | GM Global Technology Operations LLC | Coated articles and methods of making the same |
US10967398B2 (en) | 2015-05-28 | 2021-04-06 | GM Global Technology Operations LLC | Coated articles and methods of making the same |
US10259005B2 (en) | 2016-09-16 | 2019-04-16 | GM Global Technology Operations LLC | Rotational paint curing device |
US10577710B2 (en) | 2017-11-06 | 2020-03-03 | GM Global Technology Operations LLC | Method of coating body-in-white structure having at least one surface comprising an aluminum alloy |
Also Published As
Publication number | Publication date |
---|---|
DE112014003935T5 (en) | 2016-06-09 |
CN105492208B (en) | 2017-11-17 |
CN105492208A (en) | 2016-04-13 |
WO2015030934A1 (en) | 2015-03-05 |
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