CN108993838A - The processing technology of aluminum single plate for curtain wall - Google Patents
The processing technology of aluminum single plate for curtain wall Download PDFInfo
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- CN108993838A CN108993838A CN201810665317.5A CN201810665317A CN108993838A CN 108993838 A CN108993838 A CN 108993838A CN 201810665317 A CN201810665317 A CN 201810665317A CN 108993838 A CN108993838 A CN 108993838A
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- degreasing
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- pickling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
- B05D1/30—Processes for applying liquids or other fluent materials performed by gravity only, i.e. flow coating
-
- 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
- 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
- B05D7/58—No clear coat specified
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/88—Curtain walls
Abstract
The present invention relates to a kind of processing technologys of aluminum single plate for curtain wall, are related to curtain wall material field.It solves the problem of between existing aluminum veneer and coating that binding force is inadequate easily to fall off.Specifically include following technique: sawing sheet-punching-bending-weld grinding-surface polishing-surface preparation-spraying-drying.Surface preparation includes degreasing-pickling-passivation process.The process of spraying includes primer spray-topcoating-spray finish process.The degreasing agent that present specification is selected during degreasing has excellent degreasing effect, adsorbs grease during degreasing, reduces the oil quantity be stained with overlay on aluminum veneer during the rinsing process；The operation of the process cooperation pickling of degreasing, more as far as possible removes grease, and the degreasing effect of the aluminum veneer of realization is good, further increase when carrying out spray-applied primer can the viscous of priming paint stick fastness；It is completely embedded between priming paint, finishing coat and finish three, the aluminum veneer ultimately generated is less prone to the phenomenon that paint layer falls off.
Description
Technical field
The present invention relates to curtain wall material field more particularly to a kind of processing technologys of aluminum single plate for curtain wall.
Background technique
Aluminium veneer curtain wall is a kind of form of curtain wall, and it is the wall for being applied to masking that nowadays the aluminum veneer development in China is mostly
The wall of body and not daylighting.Since traditional glass curtain wall often will cause optical pollution, foreign countries generally start using single
Layer aluminum veneer.
As a kind of new material, aluminum veneer in terms of building using more and more extensive, had more and more people
Where the advantage for coming to realise aluminum veneer.
Existing Authorization Notice No. is that the Chinese patent of CN2658277Y discloses a kind of glaze aluminium board building decoration material
Material, aluminium sheet is substrate, and the architectural surface of aluminium sheet substrate is that corundum sand blasted surface process layer is obtained through sandblasting, then covers dioxy
SiClx coating, corundum sand blasted surface process layer camber are 5~10 μm, 25~40 μm of silica dioxide coating thickness.
Above-mentioned patent floating coat and aluminum veneer binding force are inadequate, are often easy to appear and fall off in use for some time, make
Antiseptic property is obtained to be affected.
Summary of the invention
The purpose of the present invention is to provide a kind of processing technology of aluminum single plate for curtain wall, the aluminium produced using the technique
There is veneer surface to spray not easily to fall off, the good advantage of antiseptic property.
Above-mentioned purpose of the invention has the technical scheme that
A kind of processing technology of aluminum single plate for curtain wall, aluminum veneer include ontology and the antirust decorative layer for being sprayed on body outer surface,
The antirust decorative layer includes from close to ontology side, successively the finishing coat to the priming paint of trypsin method, overcoating on priming paint and overcoating exist
The processing technology of the finish on finishing coat surface, the aluminum veneer includes the following steps,
Step 1: aluminum veneer is cut using plate shearing machine, obtains ontology by sawing sheet；
Step 2: punching, on the body corner cut and punching；
Step 3: bending, using bending machine to ontology flanging；
Step 4: freezing, welded using argon arc welding at corner cut；
Step 5: weld grinding polishes flat to commissure using angle grinder；
Step 6: surface polishing after being roughly ground using the sand paper of 5000 mesh, is refined using the sand paper of 1000 mesh, is recycled
Air pressure gun blows off the clast on surface；
Step 7: surface preparation,
Ontology obtained in step 6 is placed in degreasing pond by a. degreasing, and spray degreasing 5-8min takes out ontology nothing after degreasing
Water-ethanol elution, is washed with water；
Ontology after washing is put into pickling tube pickling 2-3min at room temperature, washing is taken out after pickling by b. pickling；
C. it is passivated, is put into passivation pool with ontology after washing and is passivated 2-3min under room temperature, washing is taken out after passivation；
D. it dries, is dried at 45-55 DEG C；
Step 8: spraying,
1) primer spray, levelling 10min at 30 DEG C
2) topcoating, levelling 15min at 30 DEG C；
3) finish, levelling 25min at 30 DEG C are sprayed；
Step 9: drying, temperature are to dry at 235 DEG C, obtain aluminum veneer；
The degreaser includes following components, paregal O, trihydroxy ethylamine oleate soap, Permethyl 99A, sodium tripolyphosphate, sodium acetate,
Activated alumina, water；
The priming paint includes following component, fluorocarbon resin, acrylic resin, PTB latex, titanium dioxide, sodium hydroxide, thickener,
Water.
Implement above-mentioned technical proposal, the process of sawing sheet is to be cut out aluminum veneer according to the needs of client in step 1, is made
The operation cut can be completed with plate shearing machine.The punch operation of step 2 is the installation strength to guarantee aluminum facade, is needed pair
Puzzle card angle is punched out processing.The bending operation of step 3 is usually to fold vertical corner to come out, the corner cut being arranged on aluminium sheet
It will not interfere with the operation of bending.Freezing for step 4 is welded between the gap corner cut adjacent after bending, and leak is reduced
The generation of phenomenon.Polished in step 5 weld seam so that product flat appearance.Sanding operation in step 6 enables to
Aluminum veneer surface forms the effect of frosted, and the bonding for increasing antirust decorative layer is secured.The operation of degreasing is to wash away aluminium list in step 7
The grease of plate surface, including plant, animal and mineral oil；Pickling is the solution for further washing away aluminum veneer surface, and then
The operation of passivation is that stable passivating film is formed on the surface of aluminum veneer, increases the corrosion resistance of aluminum veneer.It is sprayed in final step 8
Priming paint, finishing coat and finish can increase the antiseptic property of aluminum veneer.
It is nonionic surfactant that the application, which selects paregal O when degreaser, does not play change in hard water, acid solution or lye
Change, it is very stable, and there is good permeability, grease can be permeated when in use, play excellent emulsifying effectiveness.Triethanolamine
Oleate soap is equally used as nonionic surfactant, can generate excellent emulsification effect.Permethyl 99A can be used as and help
Penetration enhancer uses, and increases the effect of degreasing；Sodium tripolyphosphate, sodium acetate are as the function and effect for playing buffering, while tripolyphosphate
The performance of hard metal ion is caused with chelating, cooperation activated alumina uses, and activated alumina subtracts the impurity absorption after washing
It is attached to the impurity of body surface less, increases the effect of washing.
And on the one hand the PTB latex being added in priming paint increases the viscous glutinous stability between priming paint and aluminium alloy, on the other hand
With good waterproof performance, the addition of fluorocarbon resin enhances heat resistance, cold resistance, low temperature flexibility, the weatherability of priming paint
And electrical property.Acrylic resin is also capable of fast light, weather-proof, heat-resisting, chemicals-resistant the performance of matching component use enhancing film.
Whole is realizing that stable process of painting is between effect and increase priming paint and aluminum veneer by increase degreasing
It is firmly bonded realization, priming paint still is able to stablize adhesion when extraneous climate change, is less prone to and falls off.
Further, the degreaser includes the component of following parts by weight, 5-10 parts of paregal O, trihydroxy ethylamine oleate soap
5-10 parts, 10-20 parts of Permethyl 99A, 1-3 parts of sodium tripolyphosphate, 1-3 parts of sodium acetate, 1-3 parts of activated alumina, water 460-470
Part.
Implement above-mentioned technical proposal, the constituent content selection of degreaser can be realized preferable degreasing in above-mentioned range
Effect.
Further, the temperature setting of degreaser is 50-80 DEG C.
Implement above-mentioned technical proposal, the temperature setting of degreaser is enable to grease to wash at 50-80 DEG C more dry
Only.
Further, the finishing coat includes following component, fluorocarbon resin, emulsion acrylic resin, graphene oxide, titanium dioxide
Titanium, silicon bullet lotion, water；
The finish includes following component, emulsion acrylic resin, PTB latex, N- stearyl erucamide, aluminium hydroxide,
Water.
Further, the priming paint includes the component of following parts by weight, 20-30 parts of fluorocarbon resin, emulsion acrylic resin
15-20 parts, 5-8 parts of PTB latex, 1-8 parts of titanium dioxide, 1-2 parts of sodium hydroxide, 0.5-1 parts of thickener, 12-17 parts of water；
The finishing coat includes the component of following parts by weight, 20-25 parts of fluorocarbon resin, emulsion acrylic resin 15-20, oxidation stone
Black alkene 1-5 parts, 5-10 parts of titanium dioxide, 10-15 parts of silicon bullet lotion, 15-20 parts of water；
The finish includes the component of following parts by weight, 35-40 parts of emulsion acrylic resin, 10-15 parts of PTB latex, N-
1-5 parts of stearyl erucamide, 1-2 parts of aluminium hydroxide, 14-20 parts of water.
Implement above-mentioned technical proposal, also contains fluorocarbon resin, acrylic resin in finishing coat, according to similar compatibility principle, energy
Enough show that adhesive effect is good between finishing coat and priming paint.Graphene oxide, which can do dispersing agent and use, increases titanium dioxide in finishing coat
Dispersing uniformity.Titanium dioxide can not only make filler use, but also can increase the smoothness on the surface of finishing coat, increase the cleaning of finishing coat
Degree.Finish selection emulsion acrylic resin and PTB latex are equally to reduce drying for the gumminess between increase and finishing coat
The lamination occurred afterwards, the N- stearyl erucamide of addition can increase the Marresistance energy of finish, and reduction is being carried
During the phenomenon that being scratched, the addition of aluminium hydroxide can increase the viscosity of finish.
Further, the ontology in step 7 is rinsed using clear water before polishing to remove the dust on aluminum veneer surface.
Implement above-mentioned technical proposal, using clear water rinse operation by polish rear surface there is also metal powder and dust
It rinses well, the pollution to degreaser is reduced during degreasing.
It further, include raw material below, 170-200 parts of hydrochloric acid, hydrofluoric acid 60-65 in every liter of pickling solution in pickling tube
Part, 120-125 parts of hydrogen peroxide, 2-3 parts of sodium molybdate, 615-638 parts of water.
Implement above-mentioned technical proposal, in pickling tube hydrochloric acid, hydrofluoric acid can neutralize be stained with the lye for overlaying on aluminum veneer surface and
Un-cleared grease is further removed, hydrogen peroxide has very strong oxidisability, and sodium molybdate is to aluminum veneer anodization rear surface
Cellular porous pellumina repeatedly filled, closed, the raising aluminum alloy surface compactness of amplitude peak, improve product
Corrosion resistance.
Further, raw material of the passivating solution comprising following parts by weight, 50-100 parts of potassium bichromate, hydrogen fluorine in the passivation pool
10-15 parts sour, 1-2 parts of hydrogen peroxide, 5-10 parts of hexafluoro zirconate, 70-75 parts of sodium hydroxide, 5-10 parts of citric acid, sodium molybdate 5-10
Part, 1-2 parts of sodium alkyl benzene sulfonate, 680-750 parts of water.
Implement above-mentioned technical proposal, body surface forms one layer of fine and close oxidation film through transpassivation, and the passivating film of formation is strong
Degree is big, and has good wearability.
Further, the body internal surface is by being successively arranged distant from PVB film layers and asbestos cloth close to inner surface side
Layer.
Implement above-mentioned technical proposal, PVB film have transparent, heat-resisting, cold-resistant, high mechanical strength, sound insulation, heat-insulated, security,
The performances such as shockproof, sunshade, and can reduce ultraviolet light, so the function admirable when being used for aluminum veneer.Asbestos layer of cloth tool
There is excellent refractory heat-insulating performance.PVB film and asbestos layer of cloth are used cooperatively, the thickness for being less prone to aluminium sheet blocked up is pacified
Dress is inconvenient, and can be realized the effect of preferable fire resisting, heat preservation.
Further, the processing technology of the aluminum veneer includes the following steps,
Step 1: aluminum veneer is cut using plate shearing machine, obtains ontology by sawing sheet；
Step 2: punching, on the body corner cut and punching；
Step 3: bending, using bending machine to ontology flanging；
Step 4: freezing, welded using argon arc welding at corner cut；
Step 5: weld grinding polishes flat to commissure using angle grinder；
Step 6: surface polishing after being roughly ground using the sand paper of 5000 mesh, is refined using the sand paper of 1000 mesh, is recycled
Air pressure gun blows off the clast on surface；
Step 7: surface preparation,
Ontology obtained in step 6 is placed in degreasing pond by a. degreasing, and spray degreasing 5-8min takes out ontology nothing after degreasing
Water-ethanol elution, is washed with water；
The preparation step of the degreaser is as follows: trihydroxy ethylamine oleate soap, sodium tripolyphosphate, acetic acid are successively added into reactor tank
Sodium and water control temperature at 50 DEG C, stir 0.5h under 1000 revs/min, obtain mixture A；Continue to be added into mixture A
Permethyl 99A controls mixing temperature at 50 DEG C, stirs 0.2h under 1000 revs/min, obtain mixture B, relays to mixture B
The continuous paregal O that is added forms a partnership type aluminium oxide, controls mixing temperature at 50 DEG C, stirs 0.5h under 1000 revs/min, obtain degreasing
Liquid；
Ontology after washing is put into pickling tube pickling 2min at room temperature, washing is taken out after pickling by b. pickling；
The pickling solution includes following preparation process, is added water in reaction kettle, continues hydrochloric acid, hydrofluoric acid reaction kettle is added
In, it is stirring while adding, continue the first mixed liquor for stirring 5min after addition, continues that dioxygen is added into the first mixed liquor
Water, it is stirring while adding, sodium molybdate is continuously added after addition, it is stirring while adding, continue stirring 15min after addition and obtains
Pickling solution, the mixing speed of agitating paddle is 1000 revs/min in whole preparation process；
C. it is passivated, is put into passivation pool with ontology after washing and is passivated 2-3min under room temperature, washing is taken out after passivation；It is described blunt
Changing liquid includes following preparation process, adds water into reaction kettle, continuously adds citric acid, hydrofluoric acid, hexafluoro zirconate, molybdic acid
Potassium bichromate, hydrogen peroxide is added after stirring 5min in sodium, and stirring 5min is uniform, adds sodium hydroxide, obtains after stirring 10min
Passivating solution, the speed stirred in whole process are 1000 revs/min；
D. it dries, is dried at 45 DEG C；
Step 8: spraying,
1) primer spray, levelling 10min at 30 DEG C；
2) topcoating, levelling 15min at 30 DEG C；
3) finish, levelling 25min at 30 DEG C are sprayed；
Step 9: drying, temperature are to dry at 235 DEG C, obtain aluminum veneer.
Implement above-mentioned technical proposal, above-mentioned process completely realizes the preparation process of aluminum veneer, manufactured aluminum veneer
Properties are excellent.
In conclusion the invention has the following advantages:
One, the degreasing agent that present specification is selected during degreasing has excellent degreasing effect, during degreasing
Grease is adsorbed, the oil quantity be stained with overlay on aluminum veneer during the rinsing process is reduced；
Two, the operation of the process cooperation pickling of degreasing, more as far as possible removes grease, and the degreasing effect of the aluminum veneer of realization is good,
Further increase when carrying out spray-applied primer can priming paint viscous glutinous fastness；
Three, it is completely embedded between priming paint, finishing coat and finish three, what the aluminum veneer ultimately generated was less prone to that paint layer falls off shows
As using stabilization.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the ontology of the embodiment of the present invention one；
Fig. 2 is the structural schematic diagram of the body outer surface Rustproofing apparatus layer of the embodiment of the present invention one；
Fig. 3 is the structure chart of the aluminum veneer of the embodiment of the present invention one.
Appended drawing reference: 1, ontology；2, antirust decorative layer；21, priming paint；22, finishing coat；23, finish.
Specific embodiment
Below in conjunction with attached drawing, the technical solution of the embodiment of the present invention is described.
Embodiment one
Such as the aluminum single plate for curtain wall of Fig. 1 and Fig. 2, including ontology 1 and the antirust decorative layer 2 for being sprayed on 1 outer surface of ontology, antirust is filled
Decorations layer 2 include from close to 1 side of ontology successively the finishing coat 22 to the priming paint of trypsin method 21, overcoating on priming paint 21 and overcoating in face
Paint the finish 23 on 22 surfaces.
The processing technology of aluminum veneer includes the following steps,
Step 1: aluminum veneer is cut using plate shearing machine, obtains ontology 1 by sawing sheet；The specification of ontology 1 is in present specification
600mm*1200mm*2mm；
Step 2: punching, corner cut and punching on ontology 1；
Step 3: bending, using bending machine to 1 flanging of ontology, the height of flanging is 10cm；Structure after bending is referring to Fig. 3 institute
Show；
Step 4: freezing, welded using argon arc welding at corner cut；
Step 5: weld grinding polishes flat to commissure using angle grinder；
Step 6: surface polishing after being roughly ground using the sand paper of 5000 mesh, is refined using the sand paper of 1000 mesh, is recycled
Air pressure gun blows off the clast on surface；
Step 7: surface preparation,
Ontology 1 obtained in step 6 is placed in degreasing pond by a. degreasing, spray degreasing 5min, and ontology 1 is taken out after degreasing and uses nothing
Water-ethanol elution, is washed with water；
The preparation step of degreaser is as follows: successively into reactor tank add 10kg trihydroxy ethylamine oleate soap, 10kg sodium tripolyphosphate,
2kg sodium acetate and 934kg water control temperature at 50 DEG C, stir 0.5h under 1000 revs/min, obtain mixture A；Continue to
40kg Permethyl 99A is added in mixture A, controls mixing temperature at 50 DEG C, stirs 0.2h under 1000 revs/min, mixed
Object B continuously adds 10kg paregal O and 2kg activated alumina into mixture B, controls mixing temperature at 50 DEG C, in 1000
0.5h is stirred under rev/min, obtains degreaser；
Ontology 1 after washing is put into pickling tube pickling 2min at room temperature, washing is taken out after pickling by b. pickling；Pickling solution packet
Following preparation process is included, is added water in reaction kettle, continues for hydrochloric acid, hydrofluoric acid to be added in reaction kettle, it is stirring while adding, add
The first mixed liquor for continuing to stir 5min after finishing is added, continues that hydrogen peroxide is added into the first mixed liquor, stirring while adding, addition
After continuously add sodium molybdate, it is stirring while adding, continue after addition stir 15min obtain pickling solution, entirely prepared
The mixing speed of agitating paddle is 1000 revs/min in journey；
C. it is passivated, is put into passivation pool with ontology 1 after washing and is passivated 2min under room temperature, washing is taken out after passivation；Passivating solution
Including following preparation process, 749kg water is added into reaction kettle, continuously adds 10kg citric acid, 10kg hydrofluoric acid, 5kg
50kg potassium chromate, 1kg hydrogen peroxide is added after stirring 5min in hexafluoro zirconate, 5kg sodium molybdate, and stirring 5min is uniform, adds 70kg
Sodium hydroxide obtains passivating solution after stirring 10min, and the speed stirred in whole process is 1000 revs/min；
D. it dries, is dried at 45 DEG C；
Step 8: spraying,
1) primer spray 21, levelling 10min at 30 DEG C；Wherein priming paint 21 with a thickness of 10 μm；
The preparation process of priming paint 21:
2) topcoating 22, levelling 15min at 30 DEG C；Wherein finishing coat 22 with a thickness of 20 μm；
The preparation process of finishing coat 22:
3) levelling 25min at 23,30 DEG C of finish is sprayed；Wherein finish 23 with a thickness of 10 μm；The preparation process of finish 23:
Step 9: drying, temperature are to dry at 235 DEG C, obtain aluminum veneer.
Embodiment 2 is to embodiment 5 the difference from embodiment 1 is that the difference of constituent content.
The amount of each component of the degreaser of 1 embodiment 1-5 of table.
| Degreaser | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Paregal O/kg | 10 | 14 | 16 | 18 | 20 |
| Trihydroxy ethylamine oleate soap/kg | 10 | 14 | 16 | 18 | 20 |
| Permethyl 99A/kg | 40 | 30 | 28 | 24 | 20 |
| Sodium tripolyphosphate/kg | 2 | 2 | 4 | 4 | 6 |
| Sodium acetate/kg | 2 | 2 | 6 | 4 | 2 |
| Activated alumina/kg | 2 | 2 | 4 | 6 | 2 |
| Water/kg | 934 | 936 | 926 | 926 | 930 |
The amount of each component of the priming paint 21 of 2 embodiment 1-5 of table
| Priming paint | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Fluorocarbon resin/kg | 600 | 540 | 500 | 440 | 400 |
| Emulsion acrylic resin/kg | 300 | 320 | 340 | 360 | 400 |
| PTB latex/kg | 100 | 120 | 100 | 160 | 140 |
| Titanium dioxide/kg | 20 | 80 | 100 | 160 | 160 |
| Sodium hydroxide/kg | 40 | 20 | 20 | 20 | 40 |
| Thickener/kg | 10 | 20 | 12 | 10 | 16 |
| Water/kg | 330 | 300 | 328 | 250 | 244 |
The amount of each component of the finishing coat 22 of 3 embodiment 1-5 of table
The amount of each component of the finish 23 of 4 embodiment 1-5 of table
| Finish | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Emulsion acrylic resin/kg | 800 | 760 | 700 | 720 | 700 |
| PTB latex/kg | 200 | 200 | 240 | 280 | 300 |
| N- stearyl erucamide/kg | 40 | 20 | 40 | 60 | 100 |
| Aluminium hydroxide/kg | 20 | 20 | 20 | 40 | 20 |
| Water/kg | 340 | 400 | 400 | 300 | 280 |
The amount of each component of the pickling solution of 5 embodiment 1-5 of table
| Pickling solution | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Hydrochloric acid/kg | 170 | 180 | 190 | 200 | 200 |
| Hydrofluoric acid/kg | 65 | 63 | 62 | 61 | 60 |
| Hydrogen peroxide/kg | 125 | 123 | 122 | 121 | 121 |
| Sodium molybdate/kg | 2 | 2.2 | 2.4 | 2.6 | 3 |
| Water/kg | 638 | 631.8 | 623.6 | 615.4 | 616 |
The amount of each component of the passivating solution of 6 embodiment 1-5 of table
| Passivating solution | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Potassium bichromate/kg | 50 | 60 | 70 | 85 | 100 |
| Hydrofluoric acid/kg | 10 | 11 | 13 | 14 | 15 |
| Hydrogen peroxide/kg | 1 | 1 | 2 | 2 | 2 |
| Hexafluoro zirconate/kg | 5 | 6 | 7 | 8 | 10 |
| Sodium hydroxide/kg | 70 | 71 | 73 | 74 | 75 |
| Citric acid/kg | 10 | 9 | 7 | 6 | 5 |
| Sodium molybdate/kg | 5 | 6 | 7 | 8 | 10 |
| Water/kg | 749 | 736 | 721 | 703 | 683 |
Experiment detection
1, aluminum veneer paint film pencil hardness: being tested according to GB/T 6739-2006 standard, with predetermined size, shape and
The pencil of hardness pencil-lead pushes through surface of the paint film, not make coating the hardness of the most hard pencil of 3mm and the above slide mark occur
Indicate aluminum veneer hardness of paint film.
2, layering, crackle, corrosion hole point, pine tree dendritic decorative pattern, bubble, slag inclusion aluminum veneer surface quality: are not allow for
Defect.
The pencil hardness of 7 embodiment 1-5 of table.
| Detection project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Pencil hardness | 2H | 2H | 2H | 2H | 2H |
The aluminum veneer surface quality of 8 embodiment 1-5 of table.
The requirement that can be derived that the compound standard of product of embodiment 1-5 by the experimental result of table 7 and table 8, in hardness and
It is more excellent on apparent mass.
Using embodiment 1 as referring to embodiment
Comparative example 1
Comparative example 1 is that ontology 1 is placed in degreasing pond the difference from embodiment 1 is that in the skimming processes of surface preparation, leaching
5min is steeped, is directly washed after degreasing, other uniform embodiments 1 are consistent.
Comparative example 2
Comparative example 2 is not the difference from embodiment 1 is that contain Permethyl 99A, other are consistent with embodiment 1 in degreaser.
Comparative example 3
Comparative example 3 the difference from embodiment 1 is that in the component of priming paint 21 and finish 23 do not contain PTB latex, other with
Embodiment 1 is consistent.
Experiment detection
It is detected according to the detection mode of embodiment 1-5.
The pencil hardness of 9 comparative example 1-3 of table
| Detection project | Embodiment 1 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Pencil hardness | 2H | 2H | 2H | ≥H |
The data of comparative example 1 and comparative example 1-3, the operation of degreasing, the pairs of pencil of group of degreaser are hard in skimming processes
The influence of degree is smaller, and influence of the component of priming paint 21 and finishing coat 22 to pencil hardness is more intuitive, especially the application text
The PTB latex being added in part can increase pencil hardness, and specific applicant is it may be speculated that PTB latex can enhance paint film
Hardness is to reduce shedding by the adhesive aggregation performance between enhancing component.
The aluminum veneer surface quality of 10 comparative example 1-3 of table
The experimental result of comparative example 1 and comparative example 1 and comparative example 2 increases different in the technique and degreasing agent for changing degreasing
Can increase the effect of degreasing when dodecane, degreasing more thoroughly, the apparent mass finally realized after completing spray painting just compares
It is more excellent.The experimental result of comparative example 1 and comparative example 3, when not containing PTB latex in component, it may appear that a small amount of gas
Bubble, then the PTB latex that applicant can reasonably deduce addition are capable of the viscosity and mixing uniformity of reinforcing material, are reduced
The bubble and spot phenomenon occurred in finish 23 and priming paint 21.
Claims (10)
1. a kind of processing technology of aluminum single plate for curtain wall, which is characterized in that aluminum veneer includes ontology (1) and is sprayed on ontology (1)
The antirust decorative layer (2) of outer surface, the antirust decorative layer (2) include from close ontology (1) side successively to the bottom of trypsin method
Paint the finish (23) of finishing coat (22) and overcoating on finishing coat (22) surface of (21), overcoating on priming paint (21), the aluminum veneer
Processing technology include the following steps,
Step 1: sawing sheet is cut aluminum veneer using plate shearing machine, obtains ontology (1)；
Step 2: punching, corner cut and punching on ontology (1)；
Step 3: bending, using bending machine to ontology (1) flanging；
Step 4: freezing, welded using argon arc welding at corner cut；
Step 5: weld grinding polishes flat to commissure using angle grinder；
Step 6: surface polishing after being roughly ground using the sand paper of 5000 mesh, is refined using the sand paper of 1000 mesh, is recycled
Air pressure gun blows off the clast on surface；
Step 7: surface preparation,
A. degreasing, ontology obtained in step 6 (1) is placed in degreasing pond, and spray degreasing 5-8min takes out ontology after degreasing
(1) it is eluted, is washed with water with dehydrated alcohol；
Ontology (1) after washing is put into pickling tube pickling 2-3min at room temperature, washing is taken out after pickling by b. pickling；
C. it is passivated, is put into passivation pool with ontology (1) after washing and is passivated 2-3min under room temperature, washing is taken out after passivation；
D. it dries, is dried at 45-55 DEG C；
Step 8: spraying,
1) primer spray (21), levelling 15min at 30 DEG C
2) topcoating (22), levelling 15min at 30 DEG C；
3) finish (23) are sprayed, levelling 25min at 30 DEG C；
Step 9: drying, temperature are to dry at 235 DEG C, obtain aluminum veneer；
The degreaser includes following components, paregal O, trihydroxy ethylamine oleate soap, Permethyl 99A, sodium tripolyphosphate, sodium acetate,
Activated alumina, water；
The priming paint (21) includes following component, fluorocarbon resin, acrylic resin, PTB latex, titanium dioxide, sodium hydroxide, thickening
Agent, water.
2. the processing technology of aluminum single plate for curtain wall according to claim 1, which is characterized in that the degreaser includes as follows
The component of parts by weight, 5-10 parts of paregal O, 5-10 parts of trihydroxy ethylamine oleate soap, 10-20 parts of Permethyl 99A, sodium tripolyphosphate
1-3 parts, 1-3 parts of sodium acetate, 1-3 parts of activated alumina, 460-470 parts of water.
3. the processing technology of aluminum single plate for curtain wall according to claim 2, which is characterized in that the temperature setting of degreaser is
50-80℃。
4. the processing technology of aluminum single plate for curtain wall according to claim 1, which is characterized in that
The finishing coat (22) includes following component, fluorocarbon resin, emulsion acrylic resin, graphene oxide, titanium dioxide, silicon bullet
Lotion, water；
The finish (23) includes following component, emulsion acrylic resin, PTB latex, N- stearyl, erucyl amide, hydrogen-oxygen
Change aluminium, water.
5. the processing technology of aluminum single plate for curtain wall according to claim 4, which is characterized in that the priming paint (21) include
The component of following parts by weight, 20-30 parts of fluorocarbon resin, 15-20 parts of emulsion acrylic resin, 5-8 parts of PTB latex, titanium dioxide
1-8 parts, 1-2 parts of sodium hydroxide, 0.5-1 parts of thickener, 12-17 parts of water；
The finishing coat (22) includes the component of following parts by weight, 20-25 parts of fluorocarbon resin, 15-20 parts of emulsion acrylic resin,
1-5 parts of graphene oxide, 5-10 parts of titanium dioxide, 10-15 parts of silicon bullet lotion, 15-20 parts of water；
The finish (23) includes the component of following parts by weight, 35-40 parts of emulsion acrylic resin, PTB latex 10-15
Part, 1-5 parts of N- stearyl erucamide, 1-2 parts of aluminium hydroxide, 14-20 parts of water.
6. the processing technology of aluminum single plate for curtain wall according to claim 1, which is characterized in that the ontology (1) in step 7 exists
It is rinsed before polishing using clear water to remove the dust on aluminum veneer surface.
7. the processing technology of aluminum single plate for curtain wall according to claim 1, which is characterized in that every liter of pickling solution in pickling tube
In include raw material below, 170-200 parts of hydrochloric acid, 60-65 parts of hydrofluoric acid, 120-125 parts of hydrogen peroxide, 2-3 parts of sodium molybdate, water
615-638 parts.
8. the processing technology of aluminum single plate for curtain wall according to claim 1, which is characterized in that passivating solution in the passivation pool
Raw material comprising following parts by weight, 50-100 parts of potassium bichromate, 10-15 parts of hydrofluoric acid, 1-2 parts of hydrogen peroxide, hexafluoro zirconate 5-
10 parts, 70-75 parts of sodium hydroxide, 5-10 parts of citric acid, 5-10 parts of sodium molybdate, 680-750 parts of water.
9. the processing technology of aluminum single plate for curtain wall according to claim 1, which is characterized in that ontology (1) inner surface
By being successively arranged distant from PVB film layers and asbestos layer of cloth close to inner surface side.
10. the processing technology of aluminum single plate for curtain wall described in -9 any one according to claim 1, which is characterized in that the aluminium
The processing technology of veneer includes the following steps,
Step 1: sawing sheet is cut aluminum veneer using plate shearing machine, obtains ontology (1)；
Step 2: punching, corner cut and punching on ontology (1)；
Step 3: bending, using bending machine to ontology (1) flanging；
Step 4: freezing, welded using argon arc welding at corner cut；
Step 5: weld grinding polishes flat to commissure using angle grinder；
Step 6: surface polishing after being roughly ground using the sand paper of 5000 mesh, is refined using the sand paper of 1000 mesh, is recycled
Air pressure gun blows off the clast on surface；
Step 7: surface preparation,
A. degreasing, ontology obtained in step 6 (1) is placed in degreasing pond, and spray degreasing 5-8min takes out ontology after degreasing
(1) it is eluted, is washed with water with dehydrated alcohol；
The preparation step of the degreaser is as follows: trihydroxy ethylamine oleate soap, sodium tripolyphosphate, acetic acid are successively added into reactor tank
Sodium and water control temperature at 50 DEG C, stir 0.5h under 1000 revs/min, obtain mixture A；Continue to be added into mixture A
Permethyl 99A controls mixing temperature at 50 DEG C, stirs 0.2h under 1000 revs/min, obtain mixture B, relays to mixture B
The continuous paregal O that is added forms a partnership type aluminium oxide, controls mixing temperature at 50 DEG C, stirs 0.5h under 1000 revs/min, obtain degreasing
Liquid；
Ontology (1) after washing is put into pickling tube pickling 2min at room temperature, washing is taken out after pickling by b. pickling；
The pickling solution includes following preparation process, is added water in reaction kettle, continues hydrochloric acid, hydrofluoric acid reaction kettle is added
In, it is stirring while adding, continue the first mixed liquor for stirring 5min after addition, continues that dioxygen is added into the first mixed liquor
Water, it is stirring while adding, sodium molybdate is continuously added after addition, it is stirring while adding, continue stirring 15min after addition and obtains
Pickling solution, the mixing speed of agitating paddle is 1000 revs/min in whole preparation process；
C. it is passivated, is put into passivation pool with ontology (1) after washing and is passivated 2min under room temperature, washing is taken out after passivation；
The passivating solution includes following preparation process, is added water into reaction kettle, and citric acid, hydrofluoric acid, six are continuously added
Potassium bichromate, hydrogen peroxide is added after stirring 5min in fluorine zirconic acid, sodium molybdate, and stirring 5min is uniform, adds sodium hydroxide, stirs
Passivating solution is obtained after 10min, the speed stirred in whole process is 1000 revs/min；
D. it dries, is dried at 45 DEG C；
Step 8: spraying,
1) primer spray (21), levelling 10min at 30 DEG C；
2) topcoating (22), levelling 15min at 30 DEG C；
3) finish (23) are sprayed, levelling 25min at 30 DEG C；
Step 9: drying, temperature are to dry at 235 DEG C, obtain aluminum veneer.
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| CN111545991A (en) * | 2020-03-20 | 2020-08-18 | 浙江林德纳新型建材有限公司 | Production process of high-strength light aluminum veneer |
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| CN110216418A (en) * | 2019-05-27 | 2019-09-10 | 中通(天津)铝业有限公司 | A kind of processing technology and installation method of aluminum veneer |
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| CN112916928A (en) * | 2021-03-25 | 2021-06-08 | 常州鑫邦装饰材料有限公司 | Slotting device for aluminum veneer and aluminum veneer production process using same |
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| CN114871701A (en) * | 2022-05-31 | 2022-08-09 | 沈阳 | Seamless energy-saving toast box and manufacturing method thereof |
| CN115401419A (en) * | 2022-09-19 | 2022-11-29 | 湖南新建汉科技建材有限公司 | Aluminum metal curtain wall production process |
| CN115401419B (en) * | 2022-09-19 | 2023-12-05 | 湖南新建汉科技建材有限公司 | Production process of aluminum metal curtain wall |
| CN116274645A (en) * | 2023-05-17 | 2023-06-23 | 江苏毅联幕墙材料有限公司 | Automatic production line and production method for arc curtain wall aluminum veneers |
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Address after: 611230 Chongyang Avenue 388, Chongzhou Economic Development Zone, Chengdu City, Sichuan Province Applicant after: Anxin Aluminum Group Co., Ltd Address before: 611230 Chongyang Avenue 388, Chongzhou Economic Development Zone, Chengdu City, Sichuan Province Applicant before: SICHUAN ANXIN ALUMINUM-PLASTIC Co.,Ltd. |
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