CN110339983A - A kind of aluminium section material surface spraying manufacture craft - Google Patents
A kind of aluminium section material surface spraying manufacture craft Download PDFInfo
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- CN110339983A CN110339983A CN201910659631.7A CN201910659631A CN110339983A CN 110339983 A CN110339983 A CN 110339983A CN 201910659631 A CN201910659631 A CN 201910659631A CN 110339983 A CN110339983 A CN 110339983A
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- Prior art keywords
- aluminum profile
- raw material
- material surface
- acid
- profile raw
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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
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
- B05D1/04—Processes for applying liquids or other fluent materials performed by spraying involving the use of an electrostatic field
- B05D1/06—Applying particulate materials
-
- 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
- B05D3/002—Pretreatement
-
- 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
-
- 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
- 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
- B05D7/24—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 for applying particular liquids or other fluent materials
-
- 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
-
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/16—Acidic compositions
- C23F1/20—Acidic compositions for etching aluminium or alloys thereof
-
- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/12—Light metals
- C23G1/125—Light metals aluminium
-
- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/22—Light metals
-
- 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
-
- 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
- B05D2350/00—Pretreatment of the substrate
- B05D2350/30—Change of the surface
- B05D2350/50—Smoothing
Abstract
The invention discloses a kind of aluminium section material surfaces to spray manufacture craft, including S1 acid-etched degreasing；S2 is washed twice；S3 alkali cleaning；S4 is washed twice again；S5 Passivation Treatment；S6 pure water is washed；The drying of S7 draining；The spraying of the aluminum profile raw material surface S8；S9 baking-curing；S10 natural cooling；S11 is packaged storage；The present invention improves the smoothness of aluminium shape surface, removes aluminium shape surface in impurity by the way that aluminium shape surface is carried out acid-etched degreasing processing, alkali cleaning and Passivation Treatment, improve coating powder utilization, powder consumption is reduced, paint coatings surface is more smooth, and coating bonds stronger with aluminium shape surface.
Description
[technical field]
The present invention relates to the technical fields of aluminum profile, the especially technical field of aluminium shape surface spraying process.
[background technique]
The product that aluminum profile is manufactured by aluminium and other alloying elements.Usually first be processed into casting piece, forged article and
After foil, plate, band, tube, rod section material etc., then it is made through processes such as clod wash, sawing, drilling, assembly, colourings.Major metal member
Element is aluminium, is adding alloying elements, is improving the performance of aluminium.In order to improve the aesthetics and corrosion resistance of aluminum profile,
Mostly sprayed coating can be carried out in aluminium shape surface, but existing spraying means coating powder utilization is low, powder consumption is big, coating applies
Layer surface is rough, and coating and aluminium shape surface bonding are unstable, and coating is easy to fall off.
[summary of the invention]
The object of the invention is to solve the problems of the prior art, a kind of aluminium section material surface spraying production is proposed
Technique can be improved coating powder utilization, reduce powder consumption, and paint coatings surface is more smooth, and coating and aluminium shape surface are viscous
It closes stronger.
To achieve the above object, the invention proposes a kind of aluminium section material surfaces to spray manufacture craft, including following step
Suddenly；
S1 acid-etched degreasing: the aluminum profile raw material sprayed will be needed to be placed in progress acid-etched degreasing processing in acid-etched degreasing liquid, place
The reason time is 8min-12min impregnation, 2min-5min spray process；
S2 is washed twice: step S1 acid-etched degreasing treated aluminum profile raw material is subjected to successively washing process twice, it will
The removal of the impurity such as the acid-etched degreasing on aluminum profile raw material surface；
S3 alkali cleaning: the aluminum profile raw material after S2 is washed twice is placed in sodium hydroxide solution, and alkali cleaning 1-2 hours；
S4 is washed twice again: the successive washing process twice by the progress after S3 alkali cleaning, by aluminum profile raw material surface
The removal of the impurity such as sodium hydroxide solution；
S5 Passivation Treatment: the aluminum profile raw material after step S4 is washed twice again, which is placed in chromate conversion liquid, to carry out
Chromate conversion treatments, processing time are 4min-6min；
S6 pure water is washed: the aluminum profile raw material after step S5 Passivation Treatment being cleaned again by pure water, controls impurity
The amount of bringing into of ion；
The drying of S7 draining: the aluminum profile raw material after step S6 pure water is washed down is placed in draining equipment and drains aluminum profile
Then raw material surface portion of water carries out drying and processing to aluminum profile raw material surface by drying equipment, makes aluminum profile raw material
Surface keeps drying；
The spraying of the aluminum profile raw material surface S8: the aluminum profile raw material after the drying of step S7 draining is placed in automatically electrostatic spray
On line, aluminum profile raw material surface is sprayed, obtains the aluminum profile raw material with powder coating；
S9 baking-curing: the aluminum profile after the spraying of the aluminum profile raw material surface step S8 is placed in baking box, baking is passed through
Case is toasted, until aluminium shape surface powder coating to be dried to the abundant solidification for realizing coating；
S10 natural cooling: the aluminum profile after step S9 baking-curing is taken out, is placed in naturally cold on aluminum profile material frame
But；
S11 is packaged storage: storing for future use after aluminum profile after cooling is carried out packing and binding.
Preferably, in the step S1 acid-etched degreasing liquid formula are as follows: 40-53 parts of sulfuric acid, 5-7 parts of ammonium acid fluoride,
2-3 parts of citric acid, 2-2.5 parts of sodium nitrate, 1-1.5 parts of ferric sulfate, 1-2 parts of dipropylene glycol, 0.2-0.4 parts of degreasing agent.
Preferably, at least being sprayed three times to aluminum profile raw material in the aluminum profile raw material surface the step S8 spraying
It applies, each coating thickness is 1.5-3 μm, and the overall thickness of powdery paints coating is no less than 5 μm after the completion of spraying.
Preferably, the particle size range of powdery paints is 35~60 μ in the aluminum profile raw material surface the step S8 spraying
m。
Preferably, baking box preset temperature in the step S9 baking-curing is 230 DEG C -255 DEG C, when drying
Between be 15-25min.
A kind of aluminium section material surface of present invention spraying manufacture craft the utility model has the advantages that the present invention by by aluminum profile table
Face carries out acid-etched degreasing processing, alkali cleaning and Passivation Treatment, improves the smoothness of aluminium shape surface, removes aluminium shape surface miscellaneous
Matter improves coating powder utilization, reduces powder consumption, and paint coatings surface is more smooth, and coating bonds more firm with aluminium shape surface
Gu.
Feature and advantage of the invention will be described in detail by embodiment.
[specific embodiment]
In order to make the objectives, technical solutions and advantages of the present invention clearer, below by embodiment, to the present invention
It is further elaborated.However, it should be understood that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in and limits the scope of the invention.In addition, in the following description, descriptions of well-known structures and technologies are omitted, to avoid
Unnecessarily obscure idea of the invention.
Embodiment one:
S1 acid-etched degreasing: the aluminum profile raw material sprayed will be needed to be placed in progress acid-etched degreasing processing in acid-etched degreasing liquid, place
The reason time is 8min impregnation, 2min spray process；
S2 is washed twice: step S1 acid-etched degreasing treated aluminum profile raw material is subjected to successively washing process twice, it will
The removal of the impurity such as the acid-etched degreasing on aluminum profile raw material surface；
S3 alkali cleaning: the aluminum profile raw material after S2 is washed twice is placed in sodium hydroxide solution, and alkali cleaning 1 hour；
S4 is washed twice again: the successive washing process twice by the progress after S3 alkali cleaning, by aluminum profile raw material surface
The removal of the impurity such as sodium hydroxide solution；
S5 Passivation Treatment: the aluminum profile raw material after step S4 is washed twice again, which is placed in chromate conversion liquid, to carry out
Chromate conversion treatments, processing time are 4min；
S6 pure water is washed: the aluminum profile raw material after step S5 Passivation Treatment being cleaned again by pure water, controls impurity
The amount of bringing into of ion；
The drying of S7 draining: the aluminum profile raw material after step S6 pure water is washed down is placed in draining equipment and drains aluminum profile
Then raw material surface portion of water carries out drying and processing to aluminum profile raw material surface by drying equipment, makes aluminum profile raw material
Surface keeps drying；
The spraying of the aluminum profile raw material surface S8: the aluminum profile raw material after the drying of step S7 draining is placed in automatically electrostatic spray
On line, aluminum profile raw material surface is sprayed, obtains the aluminum profile raw material with powder coating；
S9 baking-curing: the aluminum profile after the spraying of the aluminum profile raw material surface step S8 is placed in baking box, baking is passed through
Case is toasted, until aluminium shape surface powder coating to be dried to the abundant solidification for realizing coating；
S10 natural cooling: the aluminum profile after step S9 baking-curing is taken out, is placed in naturally cold on aluminum profile material frame
But；
S11 is packaged storage: storing for future use after aluminum profile after cooling is carried out packing and binding.
Wherein, in described step S1 acid-etched degreasing liquid formula are as follows: 40 parts of sulfuric acid, 5 parts of ammonium acid fluoride, citric acid 2
Part, 2 parts of sodium nitrate, 1 part of ferric sulfate, 1 part of dipropylene glycol, 0.2 part of degreasing agent, the aluminum profile raw material surface the step S8 spray
Tu Zhong at least sprays aluminum profile raw material three times, and each coating thickness is 1.5 μm, powdery paints coating after the completion of spraying
Overall thickness be no less than 5 μm, the aluminum profile raw material surface step S8 spraying in powdery paints particle size range be 35 μm, it is described
Step S9 baking-curing in baking box preset temperature be 230 DEG C, drying time 15.
Embodiment two:
S1 acid-etched degreasing: the aluminum profile raw material sprayed will be needed to be placed in progress acid-etched degreasing processing in acid-etched degreasing liquid, place
The reason time is 12min impregnation, 5min spray process；
S2 is washed twice: step S1 acid-etched degreasing treated aluminum profile raw material is subjected to successively washing process twice, it will
The removal of the impurity such as the acid-etched degreasing on aluminum profile raw material surface；
S3 alkali cleaning: the aluminum profile raw material after S2 is washed twice is placed in sodium hydroxide solution, and alkali cleaning 2 hours；
S4 is washed twice again: the successive washing process twice by the progress after S3 alkali cleaning, by aluminum profile raw material surface
The removal of the impurity such as sodium hydroxide solution；
S5 Passivation Treatment: the aluminum profile raw material after step S4 is washed twice again, which is placed in chromate conversion liquid, to carry out
Chromate conversion treatments, processing time are 6min；
S6 pure water is washed: the aluminum profile raw material after step S5 Passivation Treatment being cleaned again by pure water, controls impurity
The amount of bringing into of ion；
The drying of S7 draining: the aluminum profile raw material after step S6 pure water is washed down is placed in draining equipment and drains aluminum profile
Then raw material surface portion of water carries out drying and processing to aluminum profile raw material surface by drying equipment, makes aluminum profile raw material
Surface keeps drying；
The spraying of the aluminum profile raw material surface S8: the aluminum profile raw material after the drying of step S7 draining is placed in automatically electrostatic spray
On line, aluminum profile raw material surface is sprayed, obtains the aluminum profile raw material with powder coating；
S9 baking-curing: the aluminum profile after the spraying of the aluminum profile raw material surface step S8 is placed in baking box, baking is passed through
Case is toasted, until aluminium shape surface powder coating to be dried to the abundant solidification for realizing coating；
S10 natural cooling: the aluminum profile after step S9 baking-curing is taken out, is placed in naturally cold on aluminum profile material frame
But；
S11 is packaged storage: storing for future use after aluminum profile after cooling is carried out packing and binding.
Wherein, in the step S1 acid-etched degreasing liquid formula are as follows: 53 parts of sulfuric acid, 7 parts of ammonium acid fluoride, citric acid 3
Part, 2.5 parts of sodium nitrate, 1.5 parts of ferric sulfate, 2 parts of dipropylene glycol, 0.4 part of degreasing agent, the step S8 aluminum profile stock chart
In the spraying of face, at least aluminum profile raw material is sprayed three times, each coating thickness is 3 μm, and powdery paints applies after the completion of spraying
The overall thickness of layer is no less than 5 μm, and the particle size range of powdery paints is 60 μ in the aluminum profile raw material surface the step S8 spraying
M, the baking box preset temperature in the step S9 baking-curing are 255 DEG C, drying time 25min.
Embodiment three:
S1 acid-etched degreasing: the aluminum profile raw material sprayed will be needed to be placed in progress acid-etched degreasing processing in acid-etched degreasing liquid, place
The reason time is 10min impregnation, 3.5min spray process；
S2 is washed twice: step S1 acid-etched degreasing treated aluminum profile raw material is subjected to successively washing process twice, it will
The removal of the impurity such as the acid-etched degreasing on aluminum profile raw material surface；
S3 alkali cleaning: the aluminum profile raw material after S2 is washed twice is placed in sodium hydroxide solution, and alkali cleaning 1.5 hours；
S4 is washed twice again: the successive washing process twice by the progress after S3 alkali cleaning, by aluminum profile raw material surface
The removal of the impurity such as sodium hydroxide solution；
S5 Passivation Treatment: the aluminum profile raw material after step S4 is washed twice again, which is placed in chromate conversion liquid, to carry out
Chromate conversion treatments, processing time are 5min；
S6 pure water is washed: the aluminum profile raw material after step S5 Passivation Treatment being cleaned again by pure water, controls impurity
The amount of bringing into of ion；
The drying of S7 draining: the aluminum profile raw material after step S6 pure water is washed down is placed in draining equipment and drains aluminum profile
Then raw material surface portion of water carries out drying and processing to aluminum profile raw material surface by drying equipment, makes aluminum profile raw material
Surface keeps drying；
The spraying of the aluminum profile raw material surface S8: the aluminum profile raw material after the drying of step S7 draining is placed in automatically electrostatic spray
On line, aluminum profile raw material surface is sprayed, obtains the aluminum profile raw material with powder coating；
S9 baking-curing: the aluminum profile after the spraying of the aluminum profile raw material surface step S8 is placed in baking box, baking is passed through
Case is toasted, until aluminium shape surface powder coating to be dried to the abundant solidification for realizing coating；
S10 natural cooling: the aluminum profile after step S9 baking-curing is taken out, is placed in naturally cold on aluminum profile material frame
But；
S11 is packaged storage: storing for future use after aluminum profile after cooling is carried out packing and binding.
Wherein, in the step S1 acid-etched degreasing liquid formula are as follows: 46 parts of sulfuric acid, 6 parts of ammonium acid fluoride, citric acid 2.5
Part, 2.25 parts of sodium nitrate, 1.25 parts of ferric sulfate, 1.5 parts of dipropylene glycol, 0.3 part of degreasing agent, the step S8 aluminum profile are former
Expect at least to spray aluminum profile raw material three times in the spraying of surface, each coating thickness is 2.25 μm, powder after the completion of spraying
The overall thickness of last paint coatings is no less than 5 μm, the partial size model of powdery paints in the aluminum profile raw material surface the step S8 spraying
Enclosing is 45 μm, and the baking box preset temperature in the step S9 baking-curing is 240 DEG C, drying time 20min.
Above-described embodiment is the description of the invention, is not limitation of the invention, after any pair of simple transformation of the present invention
Scheme all belong to the scope of protection of the present invention.
Claims (5)
1. a kind of aluminium section material surface sprays manufacture craft, it is characterised in that: the following steps are included:
S1 acid-etched degreasing: will need the aluminum profile raw material that sprays to be placed in progress acid-etched degreasing processing in acid-etched degreasing liquid, when processing
Between be 8min-12min impregnation, 2min-5min spray process；
S2 is washed twice: step S1 acid-etched degreasing treated aluminum profile raw material being carried out successively washing process twice, by aluminium profiles
The removal of the impurity such as the acid-etched degreasing on material raw material surface；
S3 alkali cleaning: the aluminum profile raw material after S2 is washed twice is placed in sodium hydroxide solution, and alkali cleaning 1-2 hours；
S4 is washed twice again: the successive washing process twice by the progress after S3 alkali cleaning, by the hydrogen-oxygen on aluminum profile raw material surface
Change the removal of the impurity such as sodium solution；
S5 Passivation Treatment: the aluminum profile raw material after step S4 is washed twice again, which is placed in chromate conversion liquid, carries out chromate
Conversion processing, processing time are 4min-6min；
S6 pure water is washed: the aluminum profile raw material after step S5 Passivation Treatment being cleaned again by pure water, controls foreign ion
The amount of bringing into；
The drying of S7 draining: the aluminum profile raw material after step S6 pure water is washed down, which is placed in draining equipment, drains aluminum profile stock chart
Then face portion of water carries out drying and processing to aluminum profile raw material surface by drying equipment, protects aluminum profile raw material surface
Hold drying；
The spraying of the aluminum profile raw material surface S8: the aluminum profile raw material after the drying of step S7 draining is placed on automatically electrostatic spray line,
Aluminum profile raw material surface is sprayed, the aluminum profile raw material with powder coating is obtained；
S9 baking-curing: by the aluminum profile raw material surface step S8 spraying after aluminum profile be placed in baking box, by baking box into
Row baking, until aluminium shape surface powder coating to be dried to the abundant solidification for realizing coating；
S10 natural cooling: the aluminum profile after step S9 baking-curing is taken out, natural cooling on aluminum profile material frame is placed in；
S11 is packaged storage: storing for future use after aluminum profile after cooling is carried out packing and binding.
2. a kind of aluminium section material surface as described in claim 1 sprays manufacture craft, it is characterised in that: the step S1
The formula of middle acid-etched degreasing liquid are as follows: 40-53 parts of sulfuric acid, 5-7 parts of ammonium acid fluoride, 2-3 parts of citric acid, 2-2.5 parts of sodium nitrate, sulfuric acid
1-1.5 parts of iron, 1-2 parts of dipropylene glycol, 0.2-0.4 parts of degreasing agent.
3. a kind of aluminium section material surface as described in claim 1 sprays manufacture craft, it is characterised in that: the step S8
In the spraying of aluminum profile raw material surface, at least aluminum profile raw material is sprayed three times, each coating thickness is 1.5-3 μm, spraying
The overall thickness of powdery paints coating is no less than 5 μm after the completion.
4. a kind of aluminium section material surface as described in claim 1 sprays manufacture craft, it is characterised in that: the step S8
The particle size range of powdery paints is 35~60 μm in the spraying of aluminum profile raw material surface.
5. a kind of aluminium section material surface as described in claim 1 sprays manufacture craft, it is characterised in that: the step S9
Baking box preset temperature in baking-curing is 230 DEG C -255 DEG C, drying time 15-25min.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483875A (en) * | 2020-11-24 | 2021-03-12 | 肇庆新联昌金属实业有限公司 | Bright and anticorrosive aluminum profile and preparation method thereof |
| CN112988839A (en) * | 2021-03-16 | 2021-06-18 | 广东技术师范大学 | Aluminum profile electrostatic spraying unit powder consumption analysis method |
| CN114907746A (en) * | 2022-06-07 | 2022-08-16 | 美图（福建）铝业有限公司 | Weather-resistant powder coating for spraying aluminum material surface and electrostatic spraying process thereof |
| CN115287663A (en) * | 2022-07-06 | 2022-11-04 | 宁波博曼特工业有限公司 | Aluminum alloy surface passivation treatment process |
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| 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 |
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|---|---|---|---|---|
| CA1131080A (en) * | 1978-02-16 | 1982-09-07 | Frank A. Badia | Electrostatic spraying |
| 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 |
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