CN107983607A - A kind of brilliant swimming production technology of aluminium section bar - Google Patents
A kind of brilliant swimming production technology of aluminium section bar Download PDFInfo
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- CN107983607A CN107983607A CN201711260754.0A CN201711260754A CN107983607A CN 107983607 A CN107983607 A CN 107983607A CN 201711260754 A CN201711260754 A CN 201711260754A CN 107983607 A CN107983607 A CN 107983607A
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- section bar
- aluminium section
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- swimming
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- 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
-
- 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
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
- B05D7/542—No clear coat specified the two layers being cured or baked together
-
- 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
- B05D7/582—No clear coat specified all layers being cured or baked together
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
A kind of brilliant swimming production technology of aluminium section bar, is related to aluminium shape surface processing technology field, comprises the following steps：1. aluminium section bar pre-treatment：Pre-treatment is carried out after being arranged on aluminium section bar；2. crystalline substance swimming paint spray treatment：Aluminium section bar after pre-treatment is subjected to brilliant swimming paint spray treatment；3. curing process：Aluminium section bar after brilliant paint spray treatment of swimming is subjected to curing process；4. examine：Quality inspection is carried out to the aluminium section bar after curing process；5. packaging and storage：Qualified aluminium section bar packaging and storage will be examined.Step 2. in brilliant swimming paint spray treatment can be arranged as required to combine for one or more coating sprayings, step 3. in curing process refer to after the completion of one or more coating sprayings combinations, it is unified to carry out one-step solidification processing.The present invention is not only energy saving, but also the aluminium section bar obtained using this kind of technique is also had excellent weatherability, stability and preferably protects light colour retention.
Description
Technical field
The present invention relates to aluminium shape surface processing technology field, more particularly to a kind of brilliant swimming production technology of aluminium section bar.
Background technology
Aluminium shape surface processing common are usual spray, powder spray, fluorocarbon-sprayed etc., in every spray in these sprayings
Painting is once both needed to carry out one-step solidification processing afterwards, then could carry out next spraying, repeatedly spraying and curing process not only energy consumption
It is larger, and the time is expended, it is unfavorable to the work efficiency of raising enterprise.
The content of the invention
It is not only energy saving it is an object of the invention to provide a kind of brilliant swimming production technology of aluminium section bar, but also use this kind of technique
Obtained aluminium section bar also has excellent weatherability, stability and preferably protects light colour retention.
To achieve these goals, the present invention provides a kind of brilliant swimming production technology of aluminium section bar, comprise the following steps：
1. aluminium section bar pre-treatment:Pre-treatment is carried out after being arranged on aluminium section bar；
2. crystalline substance swimming paint spray treatment：Aluminium section bar after pre-treatment is subjected to brilliant swimming paint spray treatment；
3. curing process：Aluminium section bar after brilliant paint spray treatment of swimming is subjected to curing process；
4. examine：Quality inspection is carried out to the aluminium section bar after curing process；
5. packaging and storage：Qualified aluminium section bar packaging and storage will be examined.
Step 3. in brilliant swimming paint spray treatment can be arranged as required to combine for a variety of coating sprayings, step 4. in
Curing process refers to after the completion of a variety of coating spraying combinations, unified to carry out one-step solidification processing.
Further, the aluminium section bar pre-treatment includes at least：Aluminium section bar is carried out to pickling processes, Passivation Treatment successively, is blown
Water process, drying and processing.
Further, the brilliant swimming paint spray treatment is combined including a kind of coating spraying, i.e. basecoat paint.
Further, the brilliant swimming paint spray treatment includes two kinds of coating sprayings combinations, i.e., aluminium section bar is carried out priming paint successively
Spraying and finishing coat spraying.
Further, the brilliant swimming spray painting, which applies processing, includes three kinds of coating spraying combinations, i.e., aluminium section bar is carried out priming paint successively
Spraying, finishing coat spraying and varnish spraying.
Further, the air compressor of paint feeding system need to be opened in the brilliant swimming paint spray treatment, by its pressure control
System is in 6-8kg/cm2；The technological parameter of spray gun used in adjustment is as follows：Coating flow 120-500CC/min, rotation cup rotating speed 5000-
50000r/min, electrostatic high-pressure scope are no more than 85kv or electrostatic induced current is no more than 100 μ A, dope viscosity scope 12-60 seconds
CF4, compressed air dosage 30-65Nm3/ h, coating and compressed air pressure require 6-7bar.
Further, the solidification temperature of aluminium section bar is 170-220 DEG C in the curing process, and curing time control is in 15-
30min；During curing, the rotating speed of section bar is controlled in 2-3.5m/min.
Further, aluminium section bar needs to check coating adhesion, coating by described after curing process after its natural cooling
Whether hardness and paint mould thickness meet the requirements.
Compared with prior art, the invention has the advantages that：
After the completion of 1. the present invention is through repeatedly spraying, one-step solidification processing is carried out, energy consumption is substantially reduced, also saves the time,
Production efficiency is provided, reduces production cost.
2. obtained aluminium section bar using the present invention has rich in color, gloss is prominent, adhesive force and weatherability are superior etc.
Advantage.
Brief description of the drawings
Fig. 1 is the process flow diagram of the present invention.
Embodiment
With reference to embodiment, the present invention is further illustrated.Wherein, attached drawing only for illustration,
What is represented is only schematic diagram, rather than pictorial diagram, it is impossible to is interpreted as the limitation to this patent；In order to which the reality of the present invention is better described
Example is applied, some components of attached drawing have omission, zoom in or out, and do not represent the size of actual product；To those skilled in the art
For, some known features and its explanation may be omitted and will be understood by attached drawing.
The same or similar label correspond to the same or similar components in the attached drawing of the embodiment of the present invention；In retouching for the present invention
In stating, it is to be understood that if it is based on attached drawing to have the orientation of the instructions such as term " on ", " under ", "left", "right" or position relationship
Shown orientation or position relationship, are for only for ease of and describe the present invention and simplify description, rather than indicate or imply meaning
Device or component must have specific orientation, with specific azimuth configuration and operation, therefore position relationship described in attached drawing
Term is only for illustration, it is impossible to the limitation to this patent is interpreted as, for the ordinary skill in the art, can
To understand the concrete meaning of above-mentioned term as the case may be.
A kind of embodiment 1, the brilliant swimming production technology of aluminium section bar, comprises the following steps：
Aluminium section bar routine pre-treatment, including：
Upper row, pickling：It will be arranged on aluminium section bar, when upper row will ensure that decorative cover cannot be bonded；During pickling, temperature is room temperature,
The free acid concentration control of pickling solution is controlled at 3-10 minutes in 6-10g/l, pickling time, specifically can be according to aluminium shape surface
Depending on pollution level.After pickling, aluminium section bar will be tilted a certain angle when slinging, and the angle is preferably 10 °, will after slinging
Stay aloft at least 1min.
First wash：Carry out first wash in the rinsing bowl for have overflow, water used is the tap water of PH≤10, water
It is 1-3min to wash the time.
Second wash：Second wash is carried out in the rinsing bowl for have overflow, water used is the pure water of PH >=5, is washed
Time is 1-2min.
Passivation：Passivation temperature is room temperature, and in 2.5-3.6, passivation time 1-3min, slings for concentration 2-3%, PH control
When to be tilted a certain angle, the angle is preferably 10 °, and at least 1min is stayed aloft after slinging.
Third time is washed：In the rinsing bowl for have overflow carry out third time washing, water used be PH >=4 tap water, water
It is 1-3min to wash the time.
4th washing：The 4th washing is carried out in the rinsing bowl for have overflow, water used is the μ S/cm of conductivity≤200
Pure water, washing time 1-3min.
Blow water：Aluminium section bar is tilted a certain angle (being preferably 10 ° of angles) suspension and in the air, at least 5min is stood, until nothing
Water drips from aluminium section bar.
Dehydration：During dehydration, dehydration furnace temperature must reach 80 DEG C, dewatering time 15-30min.
Lower row：When being arranged under aluminium section bar, it is necessary to handle with care, separated between upper and lower two layers with filler strip, avoid wiping colored surface.
Aluminium section bar through dehydration must not be contacted directly with hand, and the aluminium section bar after placing is covered with dustcloth, it is ensured that aluminium section bar will not
Polluted again；And the aluminium section bar through pre-treatment will spray as early as possible, the aluminium section bar after pre-treatment is between spray treatment
Every the time must not exceed 48 it is small when.
Crystalline substance swimming paint spray treatment, including：
Feeding：To ensure that the decorative cover of aluminium section bar hangs over easily spray position during feeding, heavy in section aluminium section bar should be used
The mode of interval dislocation is hung, and spacing is preferably controlled in：Heavy in section 100-150mm, small bore 50-100mm.
Drifting dust：By the spray gun drifting dust of the aluminium section bar after feeding, aluminium shape surface is set to keep cleaning.
Primer spray：Aluminium section bar after drifting dust is put into spray painting room one, when spraying need to compress the air of paint feeding system
Machine is opened, its pressure is controlled in 6-8kg/cm2, adjust electrostatic gun one technological parameter it is as follows：Coating flow 120-
300CC, rotation cup rotating speed 5000-50000r/min, electrostatic high-pressure scope are no more than 85KV or electrostatic induced current is no more than 100 μ A, applies
Expecting 12-60 seconds CF4 of viscosity, (i.e. coating is from ISO 4#Cup in delivery time be 12-60 seconds), compressed air dosage 30-65Nm3/
H, coating and compressed air pressure require 6-7bar.The electrostatic gun can use can automatic lifting automatic gun, it is described automatic
The distance of rifle and aluminium section bar workpiece is 150-250mm, and lifting speed is 30-40 times/min；The electrostatic gun can also use hand
Spray gun, the distance of the hand lance and aluminium section bar workpiece is 150-250mm.During spraying, conveyer belt or the conveying of aluminium section bar are conveyed
Chain speed control is in 2-3.5m/min.
Curing process：Before curing process, curing oven will at least 30min preheat in advance, be put into when furnace temperature rises to 170 DEG C
Aluminium section bar through topcoating, then solidification temperature is controlled carry out curing process, hardening time 15- at 170-220 DEG C
30min.The size of aluminium section bar workpiece, the aluminium wall thickness of aluminium section bar can all influence cured temperature and time, in actual production,
It can adjust accordingly.
Blanking, inspection；After the cured processing of aluminium section bar, natural cooling is needed, its coating adhesion is had to check for after cooling, is applied
Whether layer hardness and film thickness etc. meet the requirements, if not meeting, should suitably adjust spraying coating process program or parameter area.
Packaging and storage：Qualified aluminium section bar will be examined to carry out packaging and storage, should whole process during inspection and packaging and storage
Avoid directly contacting aluminium shape surface with hand, to handle with care, put neat, it is impossible to collide or pile up, upper and lower two layers of aluminium
Separated between section bar with filler strip.
Embodiment 2, on the basis of above-described embodiment 1, in the brilliant swimming paint spray treatment step, increases spray plane lacquerer
Sequence, to obtain the aluminium section bar of two coatings.Include the following steps：Pre-treatment, feeding, drifting dust, primer spray, topcoating, curing
Processing, blanking, inspection, packaging and storage.
Topcoating：Aluminium section bar after primer spray is put into spray painting room two, when spraying need to be by the air pressure of paint feeding system
Contracting machine is opened, its pressure is controlled in 6-8kg/cm2, adjust electrostatic gun two technological parameter it is as follows：Coating flow 300-
500CC, rotation cup rotating speed 5000-50000r/min, electrostatic high-pressure scope are no more than 85KV or electrostatic induced current is no more than 100 μ A, applies
Expect 12-60 seconds CF4 of viscosity, compressed air dosage 30-65Nm3/ h, coating and compressed air pressure require 6-7bar.The electrostatic
Spray gun can use can automatic lifting automatic gun, the distance of the automatic gun and aluminium section bar workpiece is 150-250mm, lifting speed
For 30-40 times/min；The electrostatic gun can also use hand lance, and the distance of the hand lance and aluminium section bar workpiece is 150-
250mm.During spraying, the conveyer belt or velocity of conveying chain that convey aluminium section bar are controlled in 2-3.5m/min.
Embodiment 3, on the basis of above-described embodiment 2, in the brilliant swimming paint spray treatment step, increase spray varnish work
Sequence, to obtain the aluminium section bar of three coatings.Include the following steps：Pre-treatment, feeding, drifting dust, primer spray, topcoating, spray are clear
Paint, curing process, blanking, inspection, packaging and storage.
When spraying varnish, the aluminium section bar through topcoating is put into spray painting room three, when spraying need to be by the air pressure of paint feeding system
Contracting machine is opened, its pressure is controlled in 6-8kg/cm2, the technological parameter for adjusting electrostatic gun is as follows：Coating flow 100-
300CC, rotation cup rotating speed 5000-50000r/min, electrostatic high-pressure scope are no more than 85KV or electrostatic induced current is no more than 100 μ A, applies
Expect 12-60 seconds CF4 of viscosity, compressed air dosage 30-65Nm3/ h, coating and compressed air pressure require 6-7bar.The electrostatic
Spray gun can use the automatic gun of automatic lifting, and the distance of the automatic gun and aluminium section bar workpiece is 150-250mm, and lifting speed is
30-40 times/min；The electrostatic gun can also use hand lance, and the distance of the hand lance and aluminium section bar workpiece is 150-
250mm.During spraying, the conveyer belt or velocity of conveying chain that convey aluminium section bar are controlled in 2-3.5m/min.
Embodiment 4, on the basis of the conventional preceding processing of above-described embodiment 1, its crystalline substance swimming paint spraying coating process comprises the following steps：
Feeding：To ensure that the decorative cover of aluminium section bar hangs over easily spray position during feeding, heavy in section aluminium section bar should be used
The mode of interval dislocation is hung, and spacing is preferably controlled in：Heavy in section 100-150mm, small bore 50-100mm.
Drifting dust：By the spray gun drifting dust of the aluminium section bar after feeding, aluminium shape surface is set to keep cleaning.
Primer spray：Aluminium section bar after drifting dust is put into spray painting room one, when spraying need to compress the air of paint feeding system
Machine is opened, its pressure is controlled in 6-8kg/cm2, adjust electrostatic gun one technological parameter it is as follows：Coating flow 250CC, rotation
Cup rotating speed 26000r/min, electrostatic high-pressure be 42KV or electrostatic induced current be 70 μ A, 45 seconds CF4 of dope viscosity, compressed air dosage
48Nm3/ h, coating and compressed air pressure require 6.1bar.The electrostatic gun can use can automatic lifting automatic gun, institute
The distance for stating automatic gun and aluminium section bar workpiece is 200mm, and lifting speed is 30-40 times/min；The electrostatic gun can also use
Hand lance, the distance of the hand lance and aluminium section bar workpiece is 220mm.During spraying, the conveyer belt or carrier chain of aluminium section bar are conveyed
Speed control is in 2.8m/min.
Curing process：Before curing process, curing oven will at least 30min preheat in advance, be put into when furnace temperature rises to 170 DEG C
Aluminium section bar through topcoating, then solidification temperature is controlled carry out curing process, hardening time 25min at 200 DEG C.Aluminium section bar
The size of workpiece, the aluminium wall thickness of aluminium section bar can all influence cured temperature and time, in actual production, can adjust accordingly
It is whole.
Blanking, inspection；After the cured processing of aluminium section bar, natural cooling is needed, its coating adhesion is had to check for after cooling, is applied
Whether layer hardness and film thickness etc. meet the requirements, if not meeting, should suitably adjust spraying coating process program or parameter area.
Packaging and storage：Qualified aluminium section bar will be examined to carry out packaging and storage, should whole process during inspection and packaging and storage
Avoid directly contacting aluminium shape surface with hand, to handle with care, put neat, it is impossible to collide or pile up, upper and lower two layers of aluminium
Separated between section bar with filler strip.
Embodiment 5, on the basis of the conventional preceding processing of above-described embodiment 1, its crystalline substance swimming paint spraying coating process comprises the following steps：
Feeding：To ensure that the decorative cover of aluminium section bar hangs over easily spray position during feeding, heavy in section aluminium section bar should be used
The mode of interval dislocation is hung, and spacing is preferably controlled in：Heavy in section 100-150mm, small bore 50-100mm.
Drifting dust：By the spray gun drifting dust of the aluminium section bar after feeding, aluminium shape surface is set to keep cleaning.
Primer spray：Aluminium section bar after drifting dust is put into spray painting room one, when spraying need to compress the air of paint feeding system
Machine is opened, its pressure is controlled in 6-8kg/cm2, adjust electrostatic gun one technological parameter it is as follows：Coating flow 300CC, rotation
Cup rotating speed 30000r/min, electrostatic high-pressure are 52KV or electrostatic induced current is 80 μ A, (i.e. coating is from ISO by 50 seconds CF4 of dope viscosity
4#Cup in delivery time be 50 seconds), compressed air dosage 52Nm3/ h, coating and compressed air pressure require 6.5bar.It is described
Electrostatic gun can use can automatic lifting automatic gun, the distance of the automatic gun and aluminium section bar workpiece is 220mm, lifting speed
For 30-40 times/min；The electrostatic gun can also use hand lance, and the distance of the hand lance and aluminium section bar workpiece is 220mm.
During spraying, the conveyer belt or velocity of conveying chain that convey aluminium section bar are controlled in 2.8m/min.
Topcoating：Aluminium section bar after primer spray is put into spray painting room two, when spraying need to be by the air pressure of paint feeding system
Contracting machine is opened, its pressure is controlled in 6-8kg/cm2, adjust electrostatic gun two technological parameter it is as follows：Coating flow 450CC,
Revolve cup rotating speed 28000r/min, electrostatic high-pressure scope is 54KV or electrostatic induced current is 85 μ A, 52 seconds CF4 of dope viscosity, compression sky
Gas dosage 55Nm3/ h, coating and compressed air pressure require 6.5bar.The electrostatic gun can use can automatic lifting it is automatic
Rifle, the distance of the automatic gun and aluminium section bar workpiece is 220mm, and lifting speed is 30-40 times/min；The electrostatic gun may be used also
Using hand lance, the distance of the hand lance and aluminium section bar workpiece is 220mm.During spraying, the conveyer belt or defeated of aluminium section bar is conveyed
Chain speed control is sent in 2.8m/min.
Curing process：Before curing process, curing oven will at least 30min preheat in advance, be put into when furnace temperature rises to 170 DEG C
Aluminium section bar through topcoating, then solidification temperature is controlled carry out curing process, hardening time 20min at 210 DEG C.Aluminium section bar
The size of workpiece, the aluminium wall thickness of aluminium section bar can all influence cured temperature and time, in actual production, can adjust accordingly
It is whole.
Blanking, inspection：After the cured processing of aluminium section bar, natural cooling is needed, its coating adhesion is had to check for after cooling, is applied
Whether layer hardness and film thickness etc. meet the requirements, if not meeting, should suitably adjust spraying coating process program or parameter area.
Packaging and storage：Qualified aluminium section bar will be examined to carry out packaging and storage, should whole process during inspection and packaging and storage
Avoid directly contacting aluminium shape surface with hand, to handle with care, put neat, it is impossible to collide or pile up, upper and lower two layers of aluminium
Separated between section bar with filler strip.
Embodiment 6, on the basis of the conventional preceding processing of above-described embodiment 1, its crystalline substance swimming paint spraying coating process comprises the following steps：
Feeding：To ensure that the decorative cover of aluminium section bar hangs over easily spray position during feeding, heavy in section aluminium section bar should be used
The mode of interval dislocation is hung, and spacing is preferably controlled in：Heavy in section 100-150mm, small bore 50-100mm.
Drifting dust：By the spray gun drifting dust of the aluminium section bar after feeding, aluminium shape surface is set to keep cleaning.
Primer spray：Aluminium section bar after drifting dust is put into spray painting room one, when spraying need to compress the air of paint feeding system
Machine is opened, its pressure is controlled in 6-8kg/cm2, adjust electrostatic gun one technological parameter it is as follows：Coating flow 280CC, rotation
Cup rotating speed 31000r/min, electrostatic high-pressure be 48KV or electrostatic induced current be 75 μ A, 48 seconds CF4 of dope viscosity, compressed air dosage
52Nm3/ h, coating and compressed air pressure require 6.7bar.The electrostatic gun can use can automatic lifting automatic gun, institute
The distance for stating automatic gun and aluminium section bar workpiece is 240mm, and lifting speed is 30-40 times/min；The electrostatic gun can also use
Hand lance, the distance of the hand lance and aluminium section bar workpiece is 240mm.During spraying, the conveyer belt or carrier chain of aluminium section bar are conveyed
Speed control is in 3.0m/min.
Topcoating：Aluminium section bar after primer spray is put into spray painting room two, when spraying need to be by the air pressure of paint feeding system
Contracting machine is opened, its pressure is controlled in 6-8kg/cm2, adjust electrostatic gun two technological parameter it is as follows：Coating flow 480CC,
Revolve cup rotating speed 35000r/min, electrostatic high-pressure scope is 57KV or electrostatic induced current is 90 μ A, 52 seconds CF4 of dope viscosity, compression sky
Gas dosage 57Nm3/ h, coating and compressed air pressure require 6.7bar.The electrostatic gun can use can automatic lifting it is automatic
Rifle, the distance of the automatic gun and aluminium section bar workpiece is 240mm, and lifting speed is 30-40 times/min；The electrostatic gun may be used also
Using hand lance, the distance of the hand lance and aluminium section bar workpiece is 240mm.During spraying, the conveyer belt or defeated of aluminium section bar is conveyed
Chain speed control is sent in 3.0m/min.
Spray varnish：Aluminium section bar through topcoating is put into spray painting room three, when spraying need to compress the air of paint feeding system
Machine is opened, its pressure is controlled in 6-8kg/cm2, the technological parameter for adjusting electrostatic gun is as follows：Coating flow 280CC, rotation cup
Rotating speed 38000r/min, electrostatic high-pressure scope be 60KV or electrostatic induced current be 88 μ A, 55 seconds CF4 of dope viscosity, compressed air use
Measure 62Nm3/ h, coating and compressed air pressure require 6.9bar.The electrostatic gun can use the automatic gun of automatic lifting, institute
The distance for stating automatic gun and aluminium section bar workpiece is 240mm, and lifting speed is 30-40 times/min；The electrostatic gun can also use
Hand lance, the distance of the hand lance and aluminium section bar workpiece is 240mm.During spraying, the conveyer belt or carrier chain of aluminium section bar are conveyed
Speed control is in 3.0m/min.
Curing process：Before curing process, curing oven will at least 30min preheat in advance, be put into when furnace temperature rises to 170 DEG C
Aluminium section bar through topcoating, then solidification temperature is controlled carry out curing process, hardening time 18min at 215 DEG C.Aluminium section bar
The size of workpiece, the aluminium wall thickness of aluminium section bar can all influence cured temperature and time, in actual production, can adjust accordingly
It is whole.
Blanking, inspection：After the cured processing of aluminium section bar, natural cooling is needed, its coating adhesion is had to check for after cooling, is applied
Whether layer hardness and film thickness etc. meet the requirements, if not meeting, should suitably adjust spraying coating process program or parameter area.
Packaging and storage：Qualified aluminium section bar will be examined to carry out packaging and storage, should whole process during inspection and packaging and storage
Avoid directly contacting aluminium shape surface with hand, to handle with care, put neat, it is impossible to collide or pile up, upper and lower two layers of aluminium
Separated between section bar with filler strip.Aluminium section bar made from production technology using the present invention is not only rich in color, gloss protrudes,
But also there is superior adhesive force and weatherability.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those of ordinary skill in the art that：It still can be to foregoing each implementation
Technical solution described in example is modified, or carries out equivalent substitution to which part technical characteristic；And these modification or
Replace, the essence of appropriate technical solution is departed from the protection domain of various embodiments of the present invention technical solution.
Claims (8)
1. the brilliant swimming production technology of a kind of aluminium section bar, it is characterised in that comprise the following steps：
1. aluminium section bar pre-treatment：Pre-treatment is carried out after being arranged on aluminium section bar；
2. crystalline substance swimming paint spray treatment：Aluminium section bar after pre-treatment is subjected to brilliant swimming paint spray treatment；
3. curing process：Aluminium section bar after brilliant paint spray treatment of swimming is subjected to curing process；
4. examine：Quality inspection is carried out to the aluminium section bar after curing process；
5. packaging and storage：Qualified aluminium section bar packaging and storage will be examined.
Step 2. in brilliant swimming paint spray treatment can be arranged as required to as the combination of one or more coating sprayings, step is 3.
In curing process refer to after the completion of one or more coating sprayings combinations, it is unified to carry out one-step solidification processing.
2. the brilliant swimming production technology of a kind of aluminium section bar according to claim 1, it is characterised in that the aluminium section bar pre-treatment is extremely
Include less：Aluminium section bar is carried out to pickling processes, Passivation Treatment successively, blows water process, drying and processing.
A kind of 3. brilliant swimming production technology of aluminium section bar according to claim 1, it is characterised in that the brilliant swimming paint spray treatment
Combined including a kind of coating spraying, i.e. basecoat paint.
A kind of 4. brilliant swimming production technology of aluminium section bar according to claim 1, it is characterised in that the brilliant swimming paint spray treatment
Combined including two kinds of coating sprayings, i.e., aluminium section bar is carried out to basecoat paint and finishing coat spraying successively.
A kind of 5. brilliant swimming production technology of aluminium section bar according to claim 1, it is characterised in that the brilliant swimming paint spray treatment
Combined including three kinds of coating sprayings, i.e., aluminium section bar is carried out to basecoat paint, finishing coat spraying and varnish spraying successively.
6. the brilliant swimming production technology of a kind of aluminium section bar according to claim 3 or 4 or 5, it is characterised in that in the brilliant swimming paint
The air compressor of paint feeding system need to be opened during spray treatment, its pressure is controlled in 6-8kg/cm2；Spray gun used in adjustment
Technological parameter is as follows：Coating flow 120-500CC/min, rotation cup rotating speed 5000-50000r/min, electrostatic high-pressure scope are no more than
85kv or electrostatic induced current are no more than 100 μ A, 12-60 seconds CF4 of dope viscosity scope, compressed air dosage 30-65Nm3/ h, coating
6-7bar is required with compressed air pressure.
A kind of 7. brilliant swimming production technology of aluminium section bar according to claim 1, it is characterised in that aluminium profiles in the curing process
The solidification temperature of material is 170-220 DEG C, and curing time control is in 15-30min；During curing, the rotating speed of section bar is controlled in 2-
3.5m/min。
8. the brilliant swimming production technology of a kind of aluminium section bar according to claim 7, it is characterised in that aluminium section bar passes through the curing
After processing, need to check whether coating adhesion, coating hardness and paint mould thickness meet the requirements after its natural cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711260754.0A CN107983607A (en) | 2017-12-04 | 2017-12-04 | A kind of brilliant swimming production technology of aluminium section bar |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711260754.0A CN107983607A (en) | 2017-12-04 | 2017-12-04 | A kind of brilliant swimming production technology of aluminium section bar |
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| CN107983607A true CN107983607A (en) | 2018-05-04 |
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| CN201711260754.0A Pending CN107983607A (en) | 2017-12-04 | 2017-12-04 | A kind of brilliant swimming production technology of aluminium section bar |
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