CN107287550A - A kind of surface preservative treatment technique of aluminium alloy plate - Google Patents
A kind of surface preservative treatment technique of aluminium alloy plate Download PDFInfo
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- CN107287550A CN107287550A CN201710585253.3A CN201710585253A CN107287550A CN 107287550 A CN107287550 A CN 107287550A CN 201710585253 A CN201710585253 A CN 201710585253A CN 107287550 A CN107287550 A CN 107287550A
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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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/131—Wire arc spraying
-
- 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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/1204—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds
- C23C18/1208—Oxides, e.g. ceramics
- C23C18/1216—Metal oxides
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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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/125—Process of deposition of the inorganic material
- C23C18/1254—Sol or sol-gel processing
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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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
- C23C28/322—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only
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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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
- C23C28/345—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer
- C23C28/3455—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer with a refractory ceramic layer, e.g. refractory metal oxide, ZrO2, rare earth oxides or a thermal barrier system comprising at least one refractory oxide layer
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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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
- C23C4/08—Metallic material containing only metal elements
Abstract
Four step process steps are sprayed the invention discloses pretreatment, electric arc aluminium spraying, inoranic membrane parcel, priming paint and the finish paint of a kind of surface preservative treatment technique of aluminium alloy plate, including aluminium alloy plate.The present invention passes through accurate process parameter control; mechanical strength, temperature tolerance, weatherability, the corrosion resistance of the diaphragm on aluminium alloy plate surface are significantly improved, diaphragm is strong with aluminium alloy plate basal body binding force, significantly larger than national standard; long-term anti-corrosion, is adapted to promote the use of.
Description
Technical field
The present invention relates to metallic plate technical field of anticorrosion, and in particular to a kind of surface preservative treatment technique of aluminium alloy plate.
Background technology
Aluminium and aluminium alloy density are small, specific strength is high, good welding performance, easy processing, surface aesthetic, and industry is had become at present
Second largest metal material is used, steel is only second to.Aluminium alloy is in Aero-Space, packaging for foodstuff, building decoration, electronic appliance, traffic
The fields such as transport have to be widely applied very much.In the prior art, aluminium alloy plate surface protection film mechanical strength is high, weatherability
Difference, corrosion resistance is poor；The thickness of coating of process formation is relatively thin, and relatively low with aluminum alloy surface adhesive force, mechanical strength is bad,
Most non-refractory, coating is easy to fall off in corrosive medium, and antiseptic effect is poor.
The content of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of processing of the surface anticorrosion of aluminium alloy plate
Technique, by four step handling process, significantly improves the mechanical strength of the diaphragm on aluminium alloy plate surface, temperature tolerance, weatherability, resistance to
Corrosivity, diaphragm is strong with aluminium alloy plate basal body binding force, significantly larger than national standard, long-term anti-corrosion, is adapted to promote the use of.
The present invention solves technical problem and adopted the following technical scheme that：
A kind of surface preservative treatment technique of aluminium alloy plate, comprises the following steps：
（1）The pretreatment of aluminium alloy plate：Aluminium alloy plate is soaked in 30~50min in the alcoholic solution of sodium hydroxide, taking-up is used
Clear water elution is clean, derusting by sandblasting, is put into 40~60min of ultrasonic cleaning in acetone soln, deionized water rinsing is reused, in 40
~60 DEG C of drying；
（2）Electric arc aluminium spraying：Using arc pistol, using electric arc as thermal source, the wire aluminium wire of purity >=99.6% is heated to molten
State, blows out vaporific, the affined particle stream of formation, even application is in aluminium alloy plate surface shape while extruding air and will melt aluminium wire
Into one layer of aluminium lamination；
（3）Inoranic membrane is wrapped up：A certain amount of butyl titanate and acetic acid are mixed into 20~30min at room temperature, are then added to
In deionized water containing acetic acid, rate of addition is maintained at 5~10min completion of dropping, is warming up to 40~60 DEG C and continues to stir anti-
30~50min is answered, room temperature is cooled to and obtains nano titanic oxide sol；Aluminium alloy plate is immersed in nano titanic oxide sol
10~20min, takes out the aluminium alloy plate for placing and being dried in air and obtaining inoranic membrane parcel；
（4）Priming paint is sprayed with finish paint：The spraying of priming paint and finish paint is carried out to aluminium alloy plate using high pressure airless spraying apparatus, is obtained
Aluminium alloy plate after preservative treatment.
Preferably, the alcoholic solution of the sodium hydroxide by sodium hydrate particle and 60~75% ethanol solution according to quality
Than 1：5~15 are formulated.
Preferably, the step（1）Derusting by sandblasting uses band corner angle steel sand, and sand grains size is controlled in 5~15mm, sandblasting gas
Body Stress control is in 0.5~0.8MPa, and sandblasting distance controlling is in 10~25cm.
Preferably, the distance controlling of spray gun and matrix is in 15~25cm during the electric arc aluminium spraying, and spray angle is controlled 60
~90 degree.
Preferably, the translational speed control of aluminium wire is in 2~5m/min during the electric arc aluminium spraying, and arc pressure is 24~48V.
Preferably, the thickness of the inoranic membrane is 100~200 μm.
Preferably, the priming paint and finish paint spray pressure are controlled in 0.5~0.8MPa, spray distance control 70~
120mm。
Preferably, the priming paint is controlled in 30~40cm/s with the uniform translational speed of finish paint spray-painting gun.
Compared with prior art, the present invention has following beneficial effect：
（1）The surface preservative treatment technique of the aluminium alloy plate of the present invention, including it is the pretreatment of aluminium alloy plate, electric arc aluminium spraying, inorganic
Film parcel, priming paint and finish paint spray four step process steps, by accurate process parameter control, significantly improve aluminium alloy plate surface
Diaphragm mechanical strength, temperature tolerance, weatherability, corrosion resistance, diaphragm and aluminium alloy plate basal body binding force be strong, much high
In national standard, long-term anti-corrosion is adapted to promote the use of.
（2）The aluminium alloy plate pretreatment of the present invention, alcoholic solution, derusting by sandblasting, the acetone of sodium hydroxide are cleaned by ultrasonic, can
Overlap, pin hole, overlap and the burr for removing surface completely are lofty, and cleaning removes oil stain, dirt, the rust staining on surface, obtains surface
Smooth aluminium alloy plate.
（3）The electric arc aluminium spraying of the present invention, can be in one layer of aluminium lamination diaphragm of aluminium alloy plate electroplating surface, it is to avoid secondary pollution
Influence internal structure；Extruding air, which will melt aluminium wire, which blows out vaporific technique, will not produce scrapings, breach and kink.
（4）The smearing of the nano titanic oxide sol of the present invention and the spraying of priming paint and finish paint, can be continuously in aluminium lamination
Outer surface forms two layers of fine and close diaphragm, further enhances corrosion-resistant, the water resistance of aluminium alloy plate, extends and use the longevity
Life.
Embodiment
Invention is described in further detail below in conjunction with specific embodiment.
Embodiment 1
A kind of surface preservative treatment technique of aluminium alloy plate, comprises the following steps：
（1）The pretreatment of aluminium alloy plate：Aluminium alloy plate is soaked in 35min in the alcoholic solution of sodium hydroxide, taking-up uses clear water
Elution is clean, and derusting by sandblasting is put into acetone soln and is cleaned by ultrasonic 50min, reuses deionized water rinsing, in 46 DEG C of drying；
Wherein, the alcoholic solution of sodium hydroxide by sodium hydrate particle and 68% ethanol solution according to mass ratio 1：7 are formulated, sandblasting
Derusting using band corner angle steel sand, the control of sand grains size in 5~15mm, the control of sandblasting gas pressure in 0.5~0.8MPa, sandblasting away from
From control in 10~25cm.
（2）Electric arc aluminium spraying：Using arc pistol, using electric arc as thermal source, the wire aluminium wire of purity >=99.6% is heated to melt
Melt state, blow out vaporific, the affined particle stream of formation while extruding air and will melt aluminium wire, even application is in aluminium alloy plate table
Face forms one layer of aluminium lamination；The distance controlling of spray gun and matrix is in 15~25cm during electric arc aluminium spraying, and spray angle is controlled 60~90
Degree, the translational speed control of aluminium wire is in 2~5m/min, and arc pressure is 24~48V.
（3）Inoranic membrane is wrapped up：A certain amount of butyl titanate and acetic acid are mixed into 22min at room temperature, are then added to
In deionized water containing acetic acid, rate of addition is maintained at 8min completion of dropping, is warming up to 55 DEG C of continuation stirring reaction 42min,
It is cooled to room temperature and obtains nano titanic oxide sol；Aluminium alloy plate is immersed in 20min in nano titanic oxide sol, taking-up is put
It is empty the aluminium alloy plate for being dried in gas and obtaining inoranic membrane parcel；The thickness of inoranic membrane is 100~200 μm.
（4）Priming paint is sprayed with finish paint：The spraying of priming paint and finish paint is carried out to aluminium alloy plate using high pressure airless spraying apparatus,
Obtain the aluminium alloy plate after preservative treatment.Spray pressure control is in 0.5~0.8MPa, and spray distance control is in 70~120mm, spray
The uniform translational speed control of rifle is in 30~40cm/s.
Embodiment 2
A kind of surface preservative treatment technique of aluminium alloy plate, comprises the following steps：
（1）The pretreatment of aluminium alloy plate：Aluminium alloy plate is soaked in 40min in the alcoholic solution of sodium hydroxide, taking-up uses clear water
Elution is clean, and derusting by sandblasting is put into acetone soln and is cleaned by ultrasonic 48min, reuses deionized water rinsing, in 50 DEG C of drying；
Wherein, the alcoholic solution of sodium hydroxide by sodium hydrate particle and 70% ethanol solution according to mass ratio 1：8 are formulated, sandblasting
Derusting using band corner angle steel sand, the control of sand grains size in 5~15mm, the control of sandblasting gas pressure in 0.5~0.8MPa, sandblasting away from
From control in 10~25cm.
（2）Electric arc aluminium spraying：Using arc pistol, using electric arc as thermal source, the wire aluminium wire of purity >=99.6% is heated to melt
Melt state, blow out vaporific, the affined particle stream of formation while extruding air and will melt aluminium wire, even application is in aluminium alloy plate table
Face forms one layer of aluminium lamination；The distance controlling of spray gun and matrix is in 15~25cm during electric arc aluminium spraying, and spray angle is controlled 60~90
Degree, the translational speed control of aluminium wire is in 2~5m/min, and arc pressure is 24~48V.
（3）Inoranic membrane is wrapped up：A certain amount of butyl titanate and acetic acid are mixed into 22min at room temperature, are then added to
In deionized water containing acetic acid, rate of addition is maintained at 6min completion of dropping, is warming up to 56 DEG C of continuation stirring reaction 44min,
It is cooled to room temperature and obtains nano titanic oxide sol；Aluminium alloy plate is immersed in 15min in nano titanic oxide sol, taking-up is put
It is empty the aluminium alloy plate for being dried in gas and obtaining inoranic membrane parcel；The thickness of inoranic membrane is 100~200 μm.
（4）Priming paint is sprayed with finish paint：The spraying of priming paint and finish paint is carried out to aluminium alloy plate using high pressure airless spraying apparatus,
Obtain the aluminium alloy plate after preservative treatment.Spray pressure control is in 0.5~0.8MPa, and spray distance control is in 70~120mm, spray
The uniform translational speed control of rifle is in 30~40cm/s.
Embodiment 3
A kind of surface preservative treatment technique of aluminium alloy plate, comprises the following steps：
（1）The pretreatment of aluminium alloy plate：Aluminium alloy plate is soaked in 43min in the alcoholic solution of sodium hydroxide, taking-up uses clear water
Elution is clean, and derusting by sandblasting is put into acetone soln and is cleaned by ultrasonic 52min, reuses deionized water rinsing, in 55 DEG C of drying；
Wherein, the alcoholic solution of sodium hydroxide by sodium hydrate particle and 75% ethanol solution according to mass ratio 1：5 are formulated, sandblasting
Derusting using band corner angle steel sand, the control of sand grains size in 5~15mm, the control of sandblasting gas pressure in 0.5~0.8MPa, sandblasting away from
From control in 10~25cm.
（2）Electric arc aluminium spraying：Using arc pistol, using electric arc as thermal source, the wire aluminium wire of purity >=99.6% is heated to melt
Melt state, blow out vaporific, the affined particle stream of formation while extruding air and will melt aluminium wire, even application is in aluminium alloy plate table
Face forms one layer of aluminium lamination；The distance controlling of spray gun and matrix is in 15~25cm during electric arc aluminium spraying, and spray angle is controlled 60~90
Degree, the translational speed control of aluminium wire is in 2~5m/min, and arc pressure is 24~48V.
（3）Inoranic membrane is wrapped up：A certain amount of butyl titanate and acetic acid are mixed into 20min at room temperature, are then added to
In deionized water containing acetic acid, rate of addition is maintained at 5min completion of dropping, is warming up to 40 DEG C of continuation stirring reaction 36min,
It is cooled to room temperature and obtains nano titanic oxide sol；Aluminium alloy plate is immersed in 12min in nano titanic oxide sol, taking-up is put
It is empty the aluminium alloy plate for being dried in gas and obtaining inoranic membrane parcel；The thickness of inoranic membrane is 100~200 μm.
（4）Priming paint is sprayed with finish paint：The spraying of priming paint and finish paint is carried out to aluminium alloy plate using high pressure airless spraying apparatus,
Obtain the aluminium alloy plate after preservative treatment.Spray pressure control is in 0.5~0.8MPa, and spray distance control is in 70~120mm, spray
The uniform translational speed control of rifle is in 30~40cm/s.
Embodiment 4
A kind of surface preservative treatment technique of aluminium alloy plate, comprises the following steps：
（1）The pretreatment of aluminium alloy plate：Aluminium alloy plate is soaked in 48min in the alcoholic solution of sodium hydroxide, taking-up uses clear water
Elution is clean, and derusting by sandblasting is put into acetone soln and is cleaned by ultrasonic 60min, reuses deionized water rinsing, in 56 DEG C of drying；
Wherein, the alcoholic solution of sodium hydroxide by sodium hydrate particle and 72% ethanol solution according to mass ratio 1：12 are formulated, sandblasting
Derusting using band corner angle steel sand, the control of sand grains size in 5~15mm, the control of sandblasting gas pressure in 0.5~0.8MPa, sandblasting away from
From control in 10~25cm.
（2）Electric arc aluminium spraying：Using arc pistol, using electric arc as thermal source, the wire aluminium wire of purity >=99.6% is heated to melt
Melt state, blow out vaporific, the affined particle stream of formation while extruding air and will melt aluminium wire, even application is in aluminium alloy plate table
Face forms one layer of aluminium lamination；The distance controlling of spray gun and matrix is in 15~25cm during electric arc aluminium spraying, and spray angle is controlled 60~90
Degree, the translational speed control of aluminium wire is in 2~5m/min, and arc pressure is 24~48V.
（3）Inoranic membrane is wrapped up：A certain amount of butyl titanate and acetic acid are mixed into 30min at room temperature, are then added to
In deionized water containing acetic acid, rate of addition is maintained at 10min completion of dropping, is warming up to 50 DEG C of continuation stirring reaction 45min,
It is cooled to room temperature and obtains nano titanic oxide sol；Aluminium alloy plate is immersed in 10min in nano titanic oxide sol, taking-up is put
It is empty the aluminium alloy plate for being dried in gas and obtaining inoranic membrane parcel；The thickness of inoranic membrane is 100~200 μm.
（4）Priming paint is sprayed with finish paint：The spraying of priming paint and finish paint is carried out to aluminium alloy plate using high pressure airless spraying apparatus,
Obtain the aluminium alloy plate after preservative treatment.Spray pressure control is in 0.5~0.8MPa, and spray distance control is in 70~120mm, spray
The uniform translational speed control of rifle is in 30~40cm/s.
Embodiment 5
A kind of surface preservative treatment technique of aluminium alloy plate, comprises the following steps：
（1）The pretreatment of aluminium alloy plate：Aluminium alloy plate is soaked in 50min in the alcoholic solution of sodium hydroxide, taking-up uses clear water
Elution is clean, and derusting by sandblasting is put into acetone soln and is cleaned by ultrasonic 60min, reuses deionized water rinsing, in 60 DEG C of drying；
Wherein, the alcoholic solution of sodium hydroxide by sodium hydrate particle and 60% ethanol solution according to mass ratio 1：15 are formulated, spray
Sand derusting is controlled in 0.5~0.8MPa, sandblasting using band corner angle steel sand, the control of sand grains size in 5~15mm, sandblasting gas pressure
Distance controlling is in 10~25cm.
（2）Electric arc aluminium spraying：Using arc pistol, using electric arc as thermal source, the wire aluminium wire of purity >=99.6% is heated to melt
Melt state, blow out vaporific, the affined particle stream of formation while extruding air and will melt aluminium wire, even application is in aluminium alloy plate table
Face forms one layer of aluminium lamination；The distance controlling of spray gun and matrix is in 15~25cm during electric arc aluminium spraying, and spray angle is controlled 60~90
Degree, the translational speed control of aluminium wire is in 2~5m/min, and arc pressure is 24~48V.
（3）Inoranic membrane is wrapped up：A certain amount of butyl titanate and acetic acid are mixed into 30min at room temperature, are then added to
In deionized water containing acetic acid, rate of addition is maintained at 5min completion of dropping, is warming up to 40 DEG C of continuation stirring reaction 44min,
It is cooled to room temperature and obtains nano titanic oxide sol；Aluminium alloy plate is immersed in 15min in nano titanic oxide sol, taking-up is put
It is empty the aluminium alloy plate for being dried in gas and obtaining inoranic membrane parcel；The thickness of inoranic membrane is 100~200 μm.
（4）Priming paint is sprayed with finish paint：The spraying of priming paint and finish paint is carried out to aluminium alloy plate using high pressure airless spraying apparatus,
Obtain the aluminium alloy plate after preservative treatment.Spray pressure control is in 0.5~0.8MPa, and spray distance control is in 70~120mm, spray
The uniform translational speed control of rifle is in 30~40cm/s.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, also should be regarded as the present invention
Protection domain.
Claims (8)
1. a kind of surface preservative treatment technique of aluminium alloy plate, it is characterised in that comprise the following steps：
（1）The pretreatment of aluminium alloy plate：Aluminium alloy plate is soaked in 30~50min in the alcoholic solution of sodium hydroxide, taking-up is used
Clear water elution is clean, derusting by sandblasting, is put into 40~60min of ultrasonic cleaning in acetone soln, deionized water rinsing is reused, in 40
~60 DEG C of drying；
（2）Electric arc aluminium spraying：Using arc pistol, using electric arc as thermal source, the wire aluminium wire of purity >=99.6% is heated to molten
State, blows out vaporific, the affined particle stream of formation, even application is in aluminium alloy plate surface shape while extruding air and will melt aluminium wire
Into one layer of aluminium lamination；
（3）Inoranic membrane is wrapped up：A certain amount of butyl titanate and acetic acid are mixed into 20~30min at room temperature, are then added to
In deionized water containing acetic acid, rate of addition is maintained at 5~10min completion of dropping, is warming up to 40~60 DEG C and continues to stir anti-
30~50min is answered, room temperature is cooled to and obtains nano titanic oxide sol；Aluminium alloy plate is immersed in nano titanic oxide sol
10~20min, takes out the aluminium alloy plate for placing and being dried in air and obtaining inoranic membrane parcel；
（4）Priming paint is sprayed with finish paint：The spraying of priming paint and finish paint is carried out to aluminium alloy plate using high pressure airless spraying apparatus, is obtained
Aluminium alloy plate after preservative treatment.
2. the surface preservative treatment technique of aluminium alloy plate according to claim 1, it is characterised in that the sodium hydroxide
Alcoholic solution is by sodium hydrate particle and 60~75% ethanol solution according to mass ratio 1：5~15 are formulated.
3. the surface preservative treatment technique of aluminium alloy plate according to claim 1, it is characterised in that the step（1）Spray
Sand derusting is controlled in 0.5~0.8MPa, sandblasting using band corner angle steel sand, the control of sand grains size in 5~15mm, sandblasting gas pressure
Distance controlling is in 10~25cm.
4. the surface preservative treatment technique of aluminium alloy plate according to claim 1, it is characterised in that during the electric arc aluminium spraying
The distance controlling of spray gun and matrix is controlled at 60~90 degree in 15~25cm, spray angle.
5. the surface preservative treatment technique of aluminium alloy plate according to claim 1, it is characterised in that during the electric arc aluminium spraying
The translational speed control of aluminium wire is in 2~5m/min, and arc pressure is 24~48V.
6. the surface preservative treatment technique of aluminium alloy plate according to claim 1, it is characterised in that the thickness of the inoranic membrane
Spend for 100~200 μm.
7. the surface preservative treatment technique of aluminium alloy plate according to claim 1, it is characterised in that the priming paint and finish paint
Spray pressure control is controlled in 70~120mm in 0.5~0.8MPa, spray distance.
8. the surface preservative treatment technique of aluminium alloy plate according to claim 1, it is characterised in that the priming paint and finish paint
The uniform translational speed control of spray-painting gun is in 30~40cm/s.
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