CN105728302A - Method for electrostatic spraying of powder coating on surface of aluminum profile - Google Patents
Method for electrostatic spraying of powder coating on surface of aluminum profile Download PDFInfo
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- CN105728302A CN105728302A CN201610213324.2A CN201610213324A CN105728302A CN 105728302 A CN105728302 A CN 105728302A CN 201610213324 A CN201610213324 A CN 201610213324A CN 105728302 A CN105728302 A CN 105728302A
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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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- 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
- B05D3/0272—After-treatment with ovens
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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
- 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
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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
- C23C22/05—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 using aqueous solutions
- C23C22/06—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 using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/24—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 using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds
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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
- C23C22/76—Applying the liquid by spraying
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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
- B05D2202/00—Metallic substrate
- B05D2202/20—Metallic substrate based on light metals
- B05D2202/25—Metallic substrate based on light metals based on Al
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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
- B05D2301/00—Inorganic additives or organic salts thereof
-
- 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
- B05D2320/00—Organic additives
-
- 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
- B05D2504/00—Epoxy polymers
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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
- B05D2508/00—Polyesters
Abstract
The invention discloses a method for electrostatic spraying of a powder coating on the surface of an aluminum profile. The method comprises the following steps that 1, the powder coating is prepared; 2, the surface of the aluminum profile is subjected to cleaning treatment; 3, passivating treatment is conducted; 4, drying is conducted; 5, electrostatic spraying is conducted; and 6, baking and curing are conducted. The method for electrostatic spraying of the powder coating on the surface of the aluminum profile is easy and convenient to operate and likely to be achieved, on the basis of the selected powder coating, through reasonable modes of surface passivating treatment, electrostatic spraying treatment and stepped baking and curing, not only is the powdering rate of electrostatic spraying effectively increased, but also the apparent quality of an obtained powder coating layer is good, and the hardness and the abrasion resistance are excellent; and meanwhile, the powder coating layer plays a good decorative effect and a protective effect on the aluminum profile, and the comprehensive performance is excellent.
Description
Technical field
The present invention relates to aluminium shape surface spraying technology field, a kind of method particularly relating to aluminium shape surface electrostatic spraying powder coating.
Background technology
Electrostatic spraying is to utilize high-pressure electrostatic electric field to make electronegative paint particles along electric field opposite direction directed movement, and paint particles is adsorbed on a kind of spraying method of surface of the work.
Powdery paints is a kind of novel without solvent 100% solid powdery environment-friendly type coating, there is the advantages such as coating efficiency height, protective and decoration performance are good, receive global extensive attention, especially in aluminum building materials, the pollution level of water-fast, the air of coating can be significantly improved, there is the performances such as the wearability of excellence, acid resistance.
Electrostatic powder spraying is exactly the principle utilizing high-pressure electrostatic corona field, makes powdery paints uniformly directionally fly under the effect of electrostatic field and treats that application surface of the work forms the uniform bisque of thickness, reheats solidification and be converted into durable film.But during existing aluminium shape surface electrostatic spraying powder coating, have that coating powder utilization is low, powder consumption big, and the shortcoming such as coating appearance poor performance.
Summary of the invention
The technical problem that present invention mainly solves is to provide a kind of method of aluminium shape surface electrostatic spraying powder coating, it is possible to solve the disadvantages mentioned above that existing electrostatic coating method exists.
For solving above-mentioned technical problem, the technical scheme that the present invention adopts is: a kind of method providing aluminium shape surface electrostatic spraying powder coating, comprises the steps:
(1) preparation of powdery paints: select the powdery paints with certain particle diameter；
(2) aluminium shape surface cleaning processes: adopt oil removing dewaxing liquid to clean the oils and fats removing aluminium shape surface, then rinses to surface in neutrality with clear water；
(3) Passivation Treatment: the aluminium shape surface after cleaning sprays passivating solution in step (2), makes aluminium shape surface form certain thickness passivating film；
(4) dry: the aluminium section bar after surface passivation in step (3) is placed in drying oven inner drying；
(5) electrostatic spraying: adopt electrostatic painting process to the powdery paints in spraying process (1) on the passivating film of dried aluminium section bar in step (4), obtain powder coating；
(6) baking-curing: be placed in drying oven by the aluminium section bar with powder coating obtained in step (5), adopts staged drying process drying and moulding, obtains the surface aluminium section bar with powder coating.
In a preferred embodiment of the present invention, in described step (1), the particle size range of described powdery paints is 30～70 μm, and its formula includes the raw material of following weight portion: line style saturated carboxyl polyester 50～60 parts, epoxy resin 30～40 parts, Nano filling 15～20 parts, titanium dioxide 2～5 parts, blanc fixe 1～3 part, 3～8 parts of firming agent, levelling agent 3～5 parts, isopropanol 10～20 parts, fire retardant 5～10 parts, coupling agent 5～8 parts.
In a preferred embodiment of the present invention, described Nano filling is nano silicon and nanometer Al2O3Powder is with the mixture of 1:2～3 ratio；The mixture that described firming agent is hydroxyalkyl amide and boron trifluoride complex mixes with the ratio of 2～3:1；Described fire retardant is mixed, with the mass ratio of 2～3:1:2, the expansion type flame retardant constituted by APP, tripolycyanamide and tetramethylolmethane.
In a preferred embodiment of the present invention, in described step (3), described passivating solution is the chromic anhydride solution of 90～120g/L, and described spray process is: spray pressure is 0.1～0.2MPa, spray time 60～90min；Described oxide thickness is 3～10 μm.
In a preferred embodiment of the present invention, in described step (4), described dry condition is: temperature 80～120 DEG C, time 3～5min.
In a preferred embodiment of the present invention, in described step (5), the process conditions of described electrostatic spraying are: spray voltage 45～55kV, compressed air pressure 0.3～0.5MPa, spray angle 60～90 DEG C.
In a preferred embodiment of the present invention, in described step (6), the process conditions that described staged dries are: first with the ramp of 20～30 DEG C/min to 180～195 DEG C, isothermal curing 25～30min, it is then shut off power supply, is naturally cooling to 120～150 DEG C, comes out of the stove.
The invention has the beneficial effects as follows: the method for a kind of aluminium shape surface electrostatic spraying powder coating of the present invention, easy and simple to handle, easily realize, it is on the basis of selected powdery paints, by rational surface passivating treatment, electrostatic spraying process and staged baking-curing mode, is not only effectively increased the powder utilization of electrostatic spraying, and the powder coating apparent mass of gained is better, hardness and wear-corrosion resistance are excellent, and aluminium section bar serves good decorative effect and protection effect, excellent combination property.
Detailed description of the invention
Below presently preferred embodiments of the present invention is described in detail, so that advantages and features of the invention can be easier to be readily appreciated by one skilled in the art, thus protection scope of the present invention being made apparent clear and definite defining.
The embodiment of the present invention includes:
Embodiment 1
A kind of method of aluminium shape surface electrostatic spraying powder coating, with particle diameter for 30～70 μm, containing, for example the powdery paints of lower raw material as coating material: line style saturated carboxyl polyester 50 parts, epoxy resin 30 parts, Nano filling 15 parts, titanium dioxide 2 parts, blanc fixe 1 part, 3 parts of firming agent, levelling agent 3 parts, isopropanol 10 parts, fire retardant 5 parts, coupling agent 5 parts.Wherein, nano silicon and nanometer Al of described Nano filling to be particle diameter be 20～50nm2O3Powder is with the mixture of 1:2 ratio；The mixture that described firming agent is hydroxyalkyl amide and boron trifluoride complex mixes with the mass ratio of 2:1；Described fire retardant is mixed, with the mass ratio of 2:1:2, the expansion type flame retardant constituted by APP, tripolycyanamide and tetramethylolmethane.
Concrete spraying process is:
Aluminium shape surface cleaning processes: adopt oil removing dewaxing liquid to clean the oils and fats removing aluminium shape surface, then rinses to surface in neutrality with clear water；
Passivation Treatment: using mass concentration be 90g/L chromic anhydride solution as passivating solution, under the spray pressure of 0.1MPa, spray 90min, make the surface of aluminium section bar form the passivating film of 3～10 μm；
Dry: the above-mentioned aluminium section bar with passivating film is placed in drying oven, with the dry 5min of the temperature of 80 DEG C, make moisture evaporate, avoid passivating film transition dehydration shrinkage simultaneously；
Electrostatic spraying: adopt electrostatic painting process, under the spray voltage of 55kV and the compressed air pressure of 0.5MPa, with the spray angles of 90 DEG C to spray coating powder paint on the passivating film of above-mentioned dried aluminium section bar；
Baking-curing: the aluminium section bar after spraying is placed in drying oven, adopts staged drying process drying and moulding, namely first with the ramp of 20 DEG C/min to 180 DEG C, isothermal curing 30min, is then shut off power supply, is naturally cooling to 150 DEG C, come out of the stove, obtain the surface aluminium section bar with powder coating.
Embodiment 2
A kind of method of aluminium shape surface electrostatic spraying powder coating, with particle diameter for 30～70 μm, containing, for example the powdery paints of lower raw material as coating material: line style saturated carboxyl polyester 60 parts, epoxy resin 40 parts, Nano filling 20 parts, titanium dioxide 5 parts, blanc fixe 3 parts, 8 parts of firming agent, levelling agent 5 parts, isopropanol 20 parts, fire retardant 10 parts, coupling agent 8 parts.Wherein, nano silicon and nanometer Al of described Nano filling to be particle diameter be 20～50nm2O3Powder is with the mixture of 1:3 ratio；The mixture that described firming agent is hydroxyalkyl amide and boron trifluoride complex mixes with the mass ratio of 3:1；Described fire retardant is mixed, with the mass ratio of 3:1:2, the expansion type flame retardant constituted by APP, tripolycyanamide and tetramethylolmethane.
Concrete spraying process is:
Aluminium shape surface cleaning processes: adopt oil removing dewaxing liquid to clean the oils and fats removing aluminium shape surface, then rinses to surface in neutrality with clear water；
Passivation Treatment: using mass concentration be 120g/L chromic anhydride solution as passivating solution, under the spray pressure of 0.2MPa, spray 60min, make the surface of aluminium section bar form the passivating film of 3～10 μm；
Dry: the above-mentioned aluminium section bar with passivating film is placed in drying oven, with the dry 3min of the temperature of 120 DEG C, make moisture evaporate, avoid passivating film transition dehydration shrinkage simultaneously；
Electrostatic spraying: adopt electrostatic painting process, under the spray voltage of 45kV and the compressed air pressure of 0.3MPa, with the spray angles of 60～90 DEG C to spray coating powder paint on the passivating film of above-mentioned dried aluminium section bar；
Baking-curing: the aluminium section bar after spraying is placed in drying oven, adopts staged drying process drying and moulding, namely first with the ramp of 30 DEG C/min to 195 DEG C, isothermal curing 25min, is then shut off power supply, is naturally cooling to 120 DEG C, come out of the stove, obtain the surface aluminium section bar with powder coating.
The aluminium shape surface powder coating that said method obtains, apparent smooth, upper powder aluminum reaches more than 70%, and glossiness when 60 DEG C is more than 88%, and hardness is more than 40HV, the erosive wear rate of coating is 0.58%, the method of testing of anti-wear performance is: employing sandblasting machine and the corundum that particle diameter is 15 orders, and erosive wear pressure is 2MPa, and distance is 12mm, time is 60s, erosion angle 90.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all in like manner include in the scope of patent protection of the present invention.
Claims (7)
1. the method for an aluminium shape surface electrostatic spraying powder coating, it is characterised in that comprise the steps:
(1) preparation of powdery paints: select the powdery paints with certain particle diameter；
(2) aluminium shape surface cleaning processes: adopt oil removing dewaxing liquid to clean the oils and fats removing aluminium shape surface, then rinses to surface in neutrality with clear water；
(3) Passivation Treatment: the aluminium shape surface after cleaning sprays passivating solution in step (2), makes aluminium shape surface form certain thickness passivating film；
(4) dry: the aluminium section bar after surface passivation in step (3) is placed in drying oven inner drying；
(5) electrostatic spraying: adopt electrostatic painting process to the powdery paints in spraying process (1) on the passivating film of dried aluminium section bar in step (4), obtain powder coating；
(6) baking-curing: be placed in drying oven by the aluminium section bar with powder coating obtained in step (5), adopts staged drying process drying and moulding, obtains the surface aluminium section bar with powder coating.
2. the method for aluminium shape surface electrostatic spraying powder coating according to claim 1, it is characterized in that, in described step (1), the particle size range of described powdery paints is 30～70 μm, and its formula includes the raw material of following weight portion: line style saturated carboxyl polyester 50～60 parts, epoxy resin 30～40 parts, Nano filling 15～20 parts, titanium dioxide 2～5 parts, blanc fixe 1～3 part, 3～8 parts of firming agent, levelling agent 3～5 parts, isopropanol 10～20 parts, fire retardant 5～10 parts, coupling agent 5～8 parts.
3. the method for aluminium shape surface electrostatic spraying powder coating according to claim 2, it is characterised in that described Nano filling is nano silicon and nanometer Al2O3Powder is with the mixture of 1:2～3 ratio；The mixture that described firming agent is hydroxyalkyl amide and boron trifluoride complex mixes with the ratio of 2～3:1；Described fire retardant is mixed, with the mass ratio of 2～3:1:2, the expansion type flame retardant constituted by APP, tripolycyanamide and tetramethylolmethane.
4. the method for aluminium shape surface electrostatic spraying powder coating according to claim 1, it is characterized in that, in described step (3), described passivating solution is the chromic anhydride solution of 90～120g/L, described spray process is: spray pressure is 0.1～0.2MPa, spray time 60～90min；Described oxide thickness is 3～10 μm.
5. the method for aluminium shape surface electrostatic spraying powder coating according to claim 1, it is characterised in that in described step (4), described dry condition is: temperature 80～120 DEG C, time 3～5min.
6. the method for aluminium shape surface electrostatic spraying powder coating according to claim 1, it is characterized in that, in described step (5), the process conditions of described electrostatic spraying are: spray voltage 45～55kV, compressed air pressure 0.3～0.5MPa, spray angle 60～90 DEG C.
7. the method for aluminium shape surface electrostatic spraying powder coating according to claim 1, it is characterized in that, in described step (6), the process conditions that described staged dries are: first with the ramp of 20～30 DEG C/min to 180～195 DEG C, isothermal curing 25～30min, it is then shut off power supply, is naturally cooling to 120～150 DEG C, comes out of the stove.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610213324.2A CN105728302A (en) | 2016-04-07 | 2016-04-07 | Method for electrostatic spraying of powder coating on surface of aluminum profile |
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| CN201610213324.2A CN105728302A (en) | 2016-04-07 | 2016-04-07 | Method for electrostatic spraying of powder coating on surface of aluminum profile |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105964524A (en) * | 2016-07-18 | 2016-09-28 | 重庆瑞明节能门窗有限公司 | Door and window aluminum profile surface electrostatic powder spraying method |
| CN106000841A (en) * | 2016-07-08 | 2016-10-12 | 广东兴裕铝业有限公司 | Aluminum material electrostatic powder spraying technology |
| CN107398413A (en) * | 2017-07-26 | 2017-11-28 | 苏州盈腾五金制品有限公司 | The Powder Electrostatic Coating Technology of metalwork |
| CN108405282A (en) * | 2018-04-13 | 2018-08-17 | 安徽协诚实业股份有限公司 | A kind of spraying process of ultrafine powder paint |
| CN108620292A (en) * | 2017-03-20 | 2018-10-09 | 天津金鹏铝材制造有限公司 | A kind of aluminium section bar powder coating methods |
| CN108666484A (en) * | 2017-03-29 | 2018-10-16 | 孚能科技（赣州）有限公司 | Battery case and preparation method thereof and battery modules |
| CN109294413A (en) * | 2018-10-11 | 2019-02-01 | 安徽省金鹏节能科技有限公司 | A kind of door and window aluminium section bar surface powder electrostatic coating method |
| CN109453968A (en) * | 2018-11-02 | 2019-03-12 | 王铁男 | A kind of metal lagging of weather-proof ultra-toughness surface coating plastics |
| CN109913112A (en) * | 2019-03-04 | 2019-06-21 | 浙江超浪新材料有限公司 | A kind of aluminium shape surface treatment process |
| CN110280466A (en) * | 2019-07-24 | 2019-09-27 | 河源市益豪塑胶五金电子制品有限公司 | A kind of electrostatic painting process of aluminium alloy extrusions |
| CN111001552A (en) * | 2019-12-25 | 2020-04-14 | 忠旺(辽阳)铝模板制造有限公司 | Aluminum profile spraying process |
| CN113304983A (en) * | 2021-05-14 | 2021-08-27 | 佛山市时力涂料科技有限公司 | Spraying process of aluminum profile adhesive tape powder coating |
| CN114433448A (en) * | 2022-03-07 | 2022-05-06 | 苏州市铂汉塑胶五金有限公司 | Electrostatic spraying method for stainless steel surface |
| CN116511009A (en) * | 2023-05-12 | 2023-08-01 | 河南省步步先动力科技有限公司 | Electrostatic coating process for product surface powder |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106000841A (en) * | 2016-07-08 | 2016-10-12 | 广东兴裕铝业有限公司 | Aluminum material electrostatic powder spraying technology |
| CN105964524A (en) * | 2016-07-18 | 2016-09-28 | 重庆瑞明节能门窗有限公司 | Door and window aluminum profile surface electrostatic powder spraying method |
| CN108620292A (en) * | 2017-03-20 | 2018-10-09 | 天津金鹏铝材制造有限公司 | A kind of aluminium section bar powder coating methods |
| CN108666484A (en) * | 2017-03-29 | 2018-10-16 | 孚能科技（赣州）有限公司 | Battery case and preparation method thereof and battery modules |
| CN107398413A (en) * | 2017-07-26 | 2017-11-28 | 苏州盈腾五金制品有限公司 | The Powder Electrostatic Coating Technology of metalwork |
| CN108405282A (en) * | 2018-04-13 | 2018-08-17 | 安徽协诚实业股份有限公司 | A kind of spraying process of ultrafine powder paint |
| CN109294413A (en) * | 2018-10-11 | 2019-02-01 | 安徽省金鹏节能科技有限公司 | A kind of door and window aluminium section bar surface powder electrostatic coating method |
| CN109453968A (en) * | 2018-11-02 | 2019-03-12 | 王铁男 | A kind of metal lagging of weather-proof ultra-toughness surface coating plastics |
| CN109913112A (en) * | 2019-03-04 | 2019-06-21 | 浙江超浪新材料有限公司 | A kind of aluminium shape surface treatment process |
| CN109913112B (en) * | 2019-03-04 | 2021-11-02 | 浙江超浪新材料有限公司 | Polyurethane wood grain powder coating for aluminum profile |
| CN110280466A (en) * | 2019-07-24 | 2019-09-27 | 河源市益豪塑胶五金电子制品有限公司 | A kind of electrostatic painting process of aluminium alloy extrusions |
| CN111001552A (en) * | 2019-12-25 | 2020-04-14 | 忠旺(辽阳)铝模板制造有限公司 | Aluminum profile spraying process |
| CN113304983A (en) * | 2021-05-14 | 2021-08-27 | 佛山市时力涂料科技有限公司 | Spraying process of aluminum profile adhesive tape powder coating |
| CN114433448A (en) * | 2022-03-07 | 2022-05-06 | 苏州市铂汉塑胶五金有限公司 | Electrostatic spraying method for stainless steel surface |
| CN116511009A (en) * | 2023-05-12 | 2023-08-01 | 河南省步步先动力科技有限公司 | Electrostatic coating process for product surface powder |
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