CN109807050A - A kind of technique for surface treatment of aluminium alloy sections - Google Patents
A kind of technique for surface treatment of aluminium alloy sections Download PDFInfo
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- CN109807050A CN109807050A CN201910213551.9A CN201910213551A CN109807050A CN 109807050 A CN109807050 A CN 109807050A CN 201910213551 A CN201910213551 A CN 201910213551A CN 109807050 A CN109807050 A CN 109807050A
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Abstract
The present invention discloses a kind of technique for surface treatment of aluminium alloy sections, and that there are raw material qualities is bad for the powder coating methods for solving in traditional technique for surface treatment of aluminium alloy sections method, has dust or impurity etc. to be mixed into, can generate particle in Surface of profile；Compressed air is unholiness, has been mixed into greasy dirt or the problem of water will also result in aluminium shape surface shrinkage cavity defect.Include the following steps: surface grinding process, surface cleaning processing, surface and oil contaminant processing, dry tack free processing, surface lacquer processing, air-dry processing；Aluminum alloy surface is used sand paper grinding process by the surface grinding process, removes burr, the salient point of aluminum alloy surface, until to reach flatness consistent for aluminum alloy surface；The surface cleaning processing cleans aluminum alloy surface using the high pressure draught that high pressure spray air gun sprays, and removes the remaining particulate matter of aluminum alloy surface after the grinding process of surface, and clean to the particulate matter in aluminum alloy surface lines gap.
Description
Technical field
The present invention relates to aluminum alloy surface process fields, and in particular to a kind of technique for surface treatment of aluminium alloy sections.
Background technique
In order to increase the corrosion resistance and mechanical property of aluminium material surface, aluminum profile will carry out at various surfaces after extruding
Reason mode, common aluminum alloy material surface processing mode mainly have anodized, electrophoretic painting, three kinds of powder spray,
These three processing methods have different principles, and have the advantages that respective.The principle of three kinds of surface treatment methods of aluminum profile:
1, anodic oxidation: being put into electrolyte solution by anode of aluminium, using the effect of electrolyte, in aluminium shape surface
It forms one layer of fine and close oxidation film and is referred to as anodic oxidation.
2, electrophoretic painting: electrophoretic coating is dissolved in water, is brought it about electrolysis and is generated charged particle, in external electric field
Under effect, charged particle is mobile to antipole and is deposited on the surface of aluminum profile, and the film layer for forming dense uniform is referred to as electrophoresis painting
Dress.
3, powder spray: powdery paints is placed in spray gun, under the action of compressed air, powder is made by high-pressure electrostatic
Particle absorption is referred to as electrostatic powder coating in the surface of aluminum profile.
The deficiency of three kinds of surface treatment methods of aluminum profile
1, anodic oxidation: oxidation film is easy to be mixed into impurity and turn yellow；Material is easily sticked to together, make Surface of profile oxygen
Change uneven color and form iris, causes the bad order of product；The position of profile and cold bed easily forms black or white
Spot；The temperature of electrolyte is excessively high or the too long powder for causing aluminium shape surface to play White-opalescent of electrolysis time；In oxygen
During change, if profile falls down, it be easy to cause short circuit；If the concentration of sulfuric acid is controlled bad in alkaline etching, type can be made
The corrosion resistance on material surface reduces；Oxidation film surface, which is also easily formed, burns, whitens, blacking or in various presentation qualities such as dark-coloured shapes
Problem.
2, it electrophoretic painting: if operated in electrophoretic painting not in strict accordance with the requirement of each process flow, such as toasts
Overlong time, tank liquor be contaminated, the off analysis of tank liquor etc., can all cause coarse aluminium shape surface, blistering, pin hole or
The various surface defects such as spot current mark, glossiness be not high, Surface of profile paint film is uneven, cracks are painted in shrinkage cavity.
3, powder spray: if raw material quality is bad, having dust or impurity etc. to be mixed into, can be in Surface of profile generation
Grain；Compressed air is unholiness, has been mixed into greasy dirt or water will also result in aluminium shape surface shrinkage cavity defect；In the formula of raw material if
It arranges in pairs or groups unreasonable, will affect the physical properties such as the hardness, impact resistance, bending resistance of aluminium profile product and chemical-resistance；Also
It will cause the bad orders such as Surface of profile not upper powder, color yellowing.
Present invention is generally directed to, if raw material quality is bad, have dust or impurity etc. to be mixed into, meeting in powder coating methods
Particle is generated in Surface of profile；Compressed air is unholiness, has been mixed into greasy dirt or water will also result in aluminium shape surface shrinkage cavity defect
Problem provides new treatment process.
Summary of the invention
The purpose of the present invention is to provide a kind of technique for surface treatment of aluminium alloy sections, solve traditional aluminium alloy extrusions
That there are raw material qualities is bad for powder coating methods in surface treatment process method, has dust or impurity etc. to be mixed into, can be in type
Material surface generates particle；Compressed air is unholiness, has been mixed into greasy dirt or the problem of water will also result in aluminium shape surface shrinkage cavity defect.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of technique for surface treatment of aluminium alloy sections, includes the following steps:
Surface grinding process, surface and oil contaminant processing, dry tack free processing, surface lacquer processing, air-dries surface cleaning processing
Processing；
Aluminum alloy surface is used sand paper grinding process by the surface grinding process, removes the burr, convex of aluminum alloy surface
Point, until to reach flatness consistent for aluminum alloy surface；
The surface cleaning processing cleans aluminum alloy surface using the high pressure draught that high pressure spray air gun sprays, and removes
The remaining particulate matter of aluminum alloy surface after the grinding process of surface, and the particulate matter in aluminum alloy surface lines gap is carried out clear
It is clean；
The surface and oil contaminant processing includes two immersion, high pressure spary steps, and the immersion is according to aluminum alloy surface to be washed
The how many cleaning solution that cleaning agent and clean water are made into 2%-5% of greasy dirt, is then immersed in cleaning for aluminium alloy to be washed again
In solution, impregnates 3-6 minutes and pull out；The aluminium alloy pulled out is carried out surface erosion using high pressure liquid spray rifle by the high pressure spary,
And to wash away repeatedly for 2-3 times in aluminum alloy surface lines gap, after the completion of high pressure liquid spray rifle institute's jetting liquid is using impregnating
And by the cleaning solution of filtering；The cleaning agent uses the degreasing agent solution of the sodium hydroxide containing 2%-3%；
The dry tack free processing is blown dry air toward aluminum alloy surface using air compressor, and air compressor goes out
One layer of strainer of tuyere case, and carried out in the environment of closing and free from dust in drying process；
The surface lacquer processing is painted using paint spraying apparatus, will be by dry tack free processing in painting process
Aluminium alloy alignment spray painting head, the direction of spray painting head is adjusted using motion bar and shaft rotation spray patent drier, followed by water pump
Raw material used in spray painting inside material box is delivered to inside hose from conduit, raw material is heated pipe heating inside material box
To 50-60 DEG C, the raw material of heating is by meeting is through Rose Box in catheter procedure, and raw material is by three layers of particulate matter sieve inside Rose Box
Filtering is filtered three times, filter out in raw material unmixed sufficient particulate matter and raw material during the preparation process mixed ash
Dirt, impurity, raw material air compressor during inside hose transmits are sent compressed air from air duct using supply fan
Enter inside hose to mix with raw material, final raw material mixed with compressed air after from spray painting head high speed ejection and uniformly paint aluminium conjunction
Gold surface；
Air-dried processing natural air drying in the environment of free from dust by the aluminium alloy of completion surface lacquer processing.
Preferably, the multiple Reusability of cleaning solution in the surface and oil contaminant processing, during being used for multiple times in time
Aluminium degreasing agent stoste is supplemented, magnitude of recruitment is the 0.1%-0.3% of cleaning solution total amount.
Preferably, the paint spraying apparatus includes material box, air compressor and spray painting head, the inside setting of the material box
Hose is arranged in the top of water pump, the material box, and the water pump is connected by a conduit with hose, sets in the middle part of the conduit
It is equipped with dismountable filter box, a cross bar is connected in the material box top sidewall, the bottom of the cross bar, which is connected with, supplies gas
The bottom of pipeline, the air duct connects air compressor, and the air duct top is connected with hose, the air
Compression motor spindle is connected with mesh enclosure, and the bottom connection of the air compressor is located at the supply fan inside mesh enclosure, the supply fan
Lower section be provided with the air filter screen that several layers are covered on mesh enclosure bottom, connecting rod, the connection is arranged in one end of the cross bar
One end of bar, which is worn, to be connected to a shaft and connects a motion bar by shaft, and it is soft to pass through they sup-port at the top of the connecting rod
Pipe, hose one end connection spray painting head, motion bar one end support spray painting head.
Preferably, three layers of particulate matter sieve, three layers of particulate matter sieves online pore diameter size are installed inside the filter box
It is gradually reduced from the bottom up.
Preferably, the spray painting head between shaft and connecting rod by being rotatablely connected, and the rotation amplitude for the head that paints is 0-
60°。
Preferably, the water pump side is equipped with the heating power supply positioned at material box bottom, connects at the top of the heating power supply
It is connected to a heating tube.
Beneficial effects of the present invention: the present invention is carrying out surface cleaning processing, surface cleaning processing compared with traditional handicraft
Aluminum alloy surface is cleaned using the high pressure draught that high pressure spray air gun sprays, removes aluminum alloy surface after the grinding process of surface
Remaining particulate matter, and the particulate matter in aluminum alloy surface lines gap is cleaned；
And in surface and oil contaminant processing, first impregnate high pressure spary again, impregnate according to aluminum alloy surface greasy dirt to be washed how much
The cleaning solution that cleaning agent and clean water are made into 2%-5%, then aluminium alloy to be washed is immersed in cleaning solution again, is soaked
Bubble is pulled out for 3-6 minutes, and aluminum alloy surface greasy dirt is first dissolved；Then, high pressure spary utilizes the aluminium alloy pulled out
High pressure liquid spray rifle carries out surface erosion, and to wash away repeatedly for 2-3 times in aluminum alloy surface lines gap, high pressure liquid spray rifle
Institute's jetting liquid reduces cost and economizes on resources, while to aluminium using after the completion of impregnating and by the cleaning solution of filtering
The better effect of alloy surface oily waste treatment；
When carrying out dry tack free processing, dry tack free processing is blown dry air toward aluminium alloy using air compressor
Surface, one layer of strainer of air compressor air outlet cover, and carried out in the environment of closing and free from dust in drying process, it can
Effectively avoid in the drying process dust fall in aluminum alloy surface；
It is painted when carrying out surface lacquer processing using paint spraying apparatus, is equipped with and adds inside the material box of paint spraying apparatus
Heat pipe, raw material are heated pipe inside material box and are heated to 50-60 DEG C, the raw material by heating not only adhesion effect more preferably, and
And it is able to ascend the speed of subsequent air drying process；And the raw material by heating in catheter procedure through Rose Box by that can filter
Case is arranged in the middle part of the conduit of connection hose and water pump, while three layers of particulate matter sieve are equipped with inside Rose Box, and three layers
Grain object sieve increases between pore size from top to bottom, and raw material is carried out three times by three layers of particulate matter the screen to filtrate inside Rose Box
Filtering filters out in raw material unmixed sufficient particulate matter and the raw material mixed dust of institute, impurity during the preparation process, thus
It rejects because mixing the particle unevenly generated in raw material, and raw material mixed dust or miscellaneous during the preparation process can be rejected
Matter, particle can be generated in Surface of profile by solving the problems, such as that conventional powder spraying process is existing；Raw material is transmitted in inside hose
Compressed air is sent into inside hose from air duct using supply fan and mixed with raw material by air compressor in the process, final raw material
It head high speed ejection and uniformly paints from spray painting in aluminum alloy surface after being mixed with compressed air, due to being provided with below supply fan
Air filter screen, air filter screen can be filtered out into dust, the dust etc. carried in the air inside air compressor, to have
Effect avoids the problem that traditional handicraft will cause aluminium shape surface shrinkage cavity defect in spraying.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will be described below to embodiment required
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is paint spraying apparatus structural schematic diagram of the present invention.
In figure: 1, material box；2, water pump；3, hose；4, cross bar；5, air duct；6, air compressor；7, supply fan；
8, air filter screen；9, connecting rod；10, motion bar；11, support rod；12, paint head；13, shaft；14, conduit；15, filter box；16,
Particulate matter sieve；17, heating power supply；18, heating tube.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, a kind of technique for surface treatment of aluminium alloy sections, includes the following steps:
Surface grinding process, surface and oil contaminant processing, dry tack free processing, surface lacquer processing, air-dries surface cleaning processing
Processing；
Aluminum alloy surface is used sand paper grinding process by surface grinding process, removes burr, the salient point of aluminum alloy surface, directly
It is consistent to reach flatness to aluminum alloy surface, it is lower to guess sand paper polishing cost, operates simpler；
Surface cleaning processing cleans aluminum alloy surface using the high pressure draught that high pressure spray air gun sprays, and removes surface
The remaining particulate matter of aluminum alloy surface after grinding process, and the particulate matter in aluminum alloy surface lines gap is cleaned,
Enable the remaining particulate matter of aluminum alloy surface by more thorough cleaning, and the particle in aluminum alloy surface lines gap
Object can be also cleaned thoroughly；
Surface and oil contaminant processing include impregnate, two steps of high pressure spary, impregnate according to aluminum alloy surface greasy dirt to be washed how much
The cleaning solution that cleaning agent and clean water are made into 2%-5%, then aluminium alloy to be washed is immersed in cleaning solution again, is soaked
Bubble is pulled out for 3-6 minutes, easy to operate, and cleaning solution can be reused, at low cost；The aluminium alloy that high pressure spary will be pulled out
Surface erosion is carried out using high pressure liquid spray rifle, and to wash away repeatedly for 2-3 times in aluminum alloy surface lines gap, high pressure spray
Liquid rifle institute's jetting liquid is using after the completion of impregnating and by the cleaning solution of filtering；Cleaning agent uses hydroxide containing 2%-3%
The degreasing agent solution of sodium, more preferably to the cleaning effect of aluminum alloy surface greasy dirt；
Dry tack free processing is blown dry air toward aluminum alloy surface, air compressor air outlet using air compressor
One layer of strainer is covered, and is carried out in the environment of closing and free from dust in drying process, can effectively be avoided at dry tack free
Aluminum alloy surface falls dust during reason；
Surface lacquer processing is painted using paint spraying apparatus, will be closed by the aluminium of dry tack free processing in painting process
Gold alignment spray painting head 12, the direction of spray painting head 12 is adjusted using motion bar 10 and 13 rotation spray patent drier 12 of shaft, then benefit
Raw material used in the spray painting inside material box 1 is delivered to inside hose 3 from conduit 14 with water pump 2, raw material is inside material box 1
It is heated pipe 18 and is heated to 50-60 DEG C, not only adhesion effect more preferably, but also is able to ascend subsequent air-dried to the raw material by heating
The raw material of the speed heating of journey in the process can be through Rose Box 15 by conduit 14, and raw material is by three layers of particulate matter inside Rose Box 15
The filtering of sieve 16 is filtered three times, is filtered out unmixed sufficient particulate matter and raw material in raw material and is mixed during the preparation process
Dust, the impurity entered；Raw material during 3 internal transmission of hose air compressor 6 using supply fan 7 by compressed air from giving
Feed channel 5 is sent into 3 inside of hose and is mixed with raw material, and due to being provided with air filter screen 8 below supply fan 7, air filter screen 8 can
Dust, the dust etc. carried in the air entered inside air compressor is filtered out, so that traditional handicraft effectively be avoided to spray
When the problem of will cause aluminium shape surface shrinkage cavity defect；
Air-dry the aluminium alloy for handling and handling completion surface lacquer natural air drying in the environment of free from dust.
The multiple Reusability of cleaning solution in surface and oil contaminant processing, is replenished in time aluminium degreasing agent during being used for multiple times
Stoste, magnitude of recruitment are the 0.1%-0.3% of cleaning solution total amount, and at low cost and preparation is simple.
Paint spraying apparatus includes material box 1, air compressor 6 and spray painting head 12, and water pump 2, raw material is arranged in the inside of material box 1
Hose 3 is arranged in the top of case 1, and water pump 2 is connected by a conduit 14 with hose 3, is provided in the middle part of conduit 14 dismountable
Filter box 15 is connected with a cross bar 4 in 1 top sidewall of material box, and the bottom of cross bar 4 is connected with air duct 5, air duct 5
Bottom connect air compressor 6, and 5 top of air duct is connected with hose 3, and 6 bottom of air compressor is connected with mesh enclosure,
The bottom connection of air compressor 6 is located at the supply fan 7 inside mesh enclosure, and the lower section of supply fan 7 is provided with several layers and is covered on net
The air filter screen 8 of bottom is covered, connecting rod 9 is arranged in one end of cross bar 4, and one end of connecting rod 9, which is worn, to be connected to a shaft 13 and pass through
Shaft 13 connects a motion bar 10, passes through the support hose 3 of support rod 11,3 one end of hose connection spray painting head at the top of connecting rod 9
12,10 one end of motion bar support spray painting head 12.
Three layers of particulate matter sieve 16 are installed, three layers of particulate matter sieve 16 surf the Internet pore diameter sizes from lower past inside filter box 15
On be gradually reduced so that the raw material of spray painting be transported to spray painting head 12 between can be sieved by three layers of particulate matter inside filter box 15
Net 16 carries out filtration treatment three times, to reject because mixing the particle unevenly generated in raw material, and can reject raw material
Mixed dust or impurity during the preparation process solve the existing meeting of conventional powder spraying process in Surface of profile and generate particle
Problem.
Spray painting head 12 between shaft 13 and connecting rod 9 by being rotatablely connected, and the rotation amplitude for the head 12 that paints is 0-60 °,
So that direction, angle adjustment are more flexible and convenient when in use for spray painting head 12.
2 side of water pump is equipped with the heating power supply 17 positioned at 1 bottom of material box, and one is connected at the top of heating power supply 17 and is added
Heat pipe 18, not only adhesion effect more preferably, but also is able to ascend subsequent air-dried process for raw material by heating.
Beneficial effects of the present invention: the present invention is carrying out surface cleaning processing, surface cleaning processing compared with traditional handicraft
Aluminum alloy surface is cleaned using the high pressure draught that high pressure spray air gun sprays, removes aluminum alloy surface after the grinding process of surface
Remaining particulate matter, and the particulate matter in aluminum alloy surface lines gap is cleaned；
And in surface and oil contaminant processing, first impregnate high pressure spary again, impregnate according to aluminum alloy surface greasy dirt to be washed how much
The cleaning solution that cleaning agent and clean water are made into 2%-5%, then aluminium alloy to be washed is immersed in cleaning solution again, is soaked
Bubble is pulled out for 3-6 minutes, and aluminum alloy surface greasy dirt is first dissolved；Then, high pressure spary utilizes the aluminium alloy pulled out
High pressure liquid spray rifle carries out surface erosion, and to wash away repeatedly for 2-3 times in aluminum alloy surface lines gap, high pressure liquid spray rifle
Institute's jetting liquid reduces cost and economizes on resources, while to aluminium using after the completion of impregnating and by the cleaning solution of filtering
The better effect of alloy surface oily waste treatment；
When carrying out dry tack free processing, dry tack free processing is blown dry air toward aluminium alloy using air compressor
Surface, one layer of strainer of air compressor air outlet cover, and carried out in the environment of closing and free from dust in drying process, it can
Effectively avoid in the drying process dust fall in aluminum alloy surface；
It is painted when carrying out surface lacquer processing using paint spraying apparatus, is equipped with inside the material box 1 of paint spraying apparatus
Heating tube, raw material are heated pipe 18 inside material box 1 and are heated to 50-60 DEG C, and not only adhesion effect is more for the raw material by heating
It is good, and it is able to ascend the speed of subsequent air drying process；And the raw material by heating in the process can be through filtering by conduit 14
Case 15, and 14 middle part of conduit of connection hose 3 and water pump 2 is arranged in filter box 15, while three layers are equipped with inside Rose Box 15
Particulate matter sieve 16, three layers of particulate matter sieve 16 increase between pore size from top to bottom, and raw material is by three inside Rose Box 15
16 filtering of layer particulate matter sieve is filtered three times, is filtered out unmixed sufficient particulate matter and raw material in raw material and was being prepared
The mixed dust of institute, impurity, to reject because mixing the particle unevenly generated in raw material, and can reject raw material in journey
Mixed dust or impurity during the preparation process solve the existing meeting of conventional powder spraying process in Surface of profile and generate particle
Problem；Raw material air compressor 6 during 3 internal transmission of hose is sent compressed air from air duct 5 using supply fan 7
Enter the inside of hose 3 to mix with raw material, final raw material 12 high speed ejection of head and uniformly paints after mixing with compressed air from painting
Aluminum alloy surface, due to being provided with air filter screen 8 below supply fan 7, air filter screen 8 can be filtered out into air compressor
Dust, the dust etc. carried in internal air, so that traditional handicraft effectively be avoided to will cause aluminium shape surface contracting in spraying
The problem of hole defect.
The present invention is when in use: carrying out grinding process to aluminum alloy surface first, surface grinding process is by aluminum alloy surface
Using sand paper grinding process, burr, the salient point of aluminum alloy surface are removed, until to reach flatness consistent for aluminum alloy surface；
Secondly, carrying out surface cleaning processing, surface cleaning processing closes aluminium using the high pressure draught that high pressure spray air gun sprays
Gold surface is cleaned, and removes the remaining particulate matter of aluminum alloy surface after the grinding process of surface, and to aluminum alloy surface lines
Particulate matter in gap is cleaned；
And then surface cleaning processing is carried out, surface and oil contaminant processing includes two immersion, high pressure spary steps, impregnates basis
The how many cleaning solution that cleaning agent and clean water are made into 2%-5% of aluminum alloy surface greasy dirt to be washed, then again by aluminium to be washed
Alloy is immersed in cleaning solution, is impregnated 3-6 minutes and is pulled out；High pressure spary carries out the aluminium alloy pulled out using high pressure liquid spray rifle
Surface erosion, and to wash away repeatedly for 2-3 times in aluminum alloy surface lines gap, high pressure liquid spray rifle institute's jetting liquid is using leaching
After the completion of bubble and by the cleaning solution of filtering；Cleaning agent uses the degreasing agent solution of the sodium hydroxide containing 2%-3%；
Then, dry tack free processing is carried out, dry tack free processing, which is blown dry air toward aluminium using air compressor, closes
Gold surface, one layer of strainer of air compressor air outlet cover, and carried out in the environment of closing and free from dust in drying process；
Then surface lacquer processing is carried out, surface lacquer processing is painted using paint spraying apparatus, will in painting process
The aluminium alloy alignment spray painting head 12 handled by dry tack free, is adjusted using motion bar 10 and 13 rotation spray patent drier 12 of shaft
The direction of spray painting head 12, is delivered to hose 3 from conduit 14 for raw material used in the spray painting inside material box 1 followed by water pump 2
Inside, raw material are heated pipe 18 inside material box 1 and are heated to 50-60 DEG C, and the raw material of heating is by can be through during conduit 14
Rose Box 15, raw material are filtered three times by three layers of particulate matter sieve 16 filtering inside Rose Box 15, are filtered out in raw material not
Mix sufficient particulate matter and the raw material mixed dust of institute, impurity during the preparation process, mistake of the raw material in 3 internal transmission of hose
Compressed air is sent into 3 inside of hose from air duct 5 using supply fan 7 and mixed with raw material by air compressor 6 in journey, final former
Material 12 high speed ejection of head and uniformly paints in aluminum alloy surface after mixing with compressed air from painting；
Finally, it carries out air-drying processing, the aluminium alloy of surface lacquer processing will be completed in the environment of free from dust by air-drying processing
Natural air drying.
The above content is just an example and description of the concept of the present invention, affiliated those skilled in the art
It makes various modifications or additions to the described embodiments or is substituted in a similar manner, without departing from invention
Design or beyond the scope defined by this claim, be within the scope of protection of the invention.
Claims (6)
1. a kind of technique for surface treatment of aluminium alloy sections, characterized by the following steps:
Surface grinding process, surface and oil contaminant processing, dry tack free processing, surface lacquer processing, air-dries place at surface cleaning processing
Reason；
Aluminum alloy surface is used sand paper grinding process by the surface grinding process, removes burr, the salient point of aluminum alloy surface, directly
It is consistent to reach flatness to aluminum alloy surface；
The surface cleaning processing cleans aluminum alloy surface using the high pressure draught that high pressure spray air gun sprays, and removes surface
The remaining particulate matter of aluminum alloy surface after grinding process, and the particulate matter in aluminum alloy surface lines gap is cleaned；
The surface and oil contaminant processing includes two immersion, high pressure spary steps, and the immersion is according to aluminum alloy surface greasy dirt to be washed
How many cleaning solutions that cleaning agent and clean water are made into 2%-5%, is then immersed in cleaning solution for aluminium alloy to be washed again
In, it impregnates 3-6 minutes and pulls out；The aluminium alloy pulled out is carried out surface erosion using high pressure liquid spray rifle by the high pressure spary, and
To wash away repeatedly for 2-3 times in aluminum alloy surface lines gap, high pressure liquid spray rifle institute's jetting liquid is using after the completion of impregnating and passing through
The cleaning solution of filtering；The cleaning agent uses the degreasing agent solution of the sodium hydroxide containing 2%-3%；
The dry tack free processing is blown dry air toward aluminum alloy surface, air compressor air outlet using air compressor
One layer of strainer is covered, and is carried out in the environment of closing and free from dust in drying process；
The surface lacquer processing is painted using paint spraying apparatus, will be closed by the aluminium of dry tack free processing in painting process
Gold alignment spray painting head (12) adjusts the court of spray painting head (12) using motion bar (10) and shaft (13) rotation spray patent drier (12)
To, raw material used in the internal spray painting of material box (1) is delivered to hose (3) inside from conduit (14) followed by water pump (2),
Raw material is heated pipe (18) inside the material box (1) and is heated to 50-60 DEG C, and the raw material of heating is by can be through during conduit (14)
Rose Box (15), raw material are filtered and filtered three times by three layers of internal particulate matter sieves (16) of Rose Box (15), filter out
The mixed dust of institute, impurity, raw material are interior in hose (3) during the preparation process for unmixed sufficient particulate matter and raw material in raw material
Compressed air is sent into hose (3) by air compressor (6) using supply fan (7) from air duct (5) during portion is transmitted
Portion is mixed with raw material, and final raw material head (12) high speed ejection and uniformly paints in aluminium alloy table after mixing with compressed air from spray painting
Face；
Air-dried processing natural air drying in the environment of free from dust by the aluminium alloy of completion surface lacquer processing.
2. a kind of technique for surface treatment of aluminium alloy sections according to claim 1, it is characterised in that: at the surface and oil contaminant
The multiple Reusability of cleaning solution in reason, is replenished in time aluminium degreasing agent stoste during being used for multiple times, and magnitude of recruitment is cleaning
The 0.1%-0.3% of solution total amount.
3. a kind of technique for surface treatment of aluminium alloy sections according to claim 1, it is characterised in that: the paint spraying apparatus packet
Material box (1), air compressor (6) and spray painting head (12) are included, water pump (2) are arranged in the inside of the material box (1), the raw material
Hose (3) are arranged in the top of case (1), and the water pump (2) is connected by a conduit (14) with hose (3), the conduit
(14) middle part is provided with dismountable filter box (15), and a cross bar (4) is connected in material box (1) top sidewall, described
The bottom of cross bar (4) is connected with air duct (5), and the bottom of the air duct (5) connects air compressor (6), and described
Air duct (5) top is connected with hose (3), and air compressor (6) bottom is connected with mesh enclosure, the air compressor
(6) bottom connection is located at the supply fan (7) inside mesh enclosure, is provided with several layers below the supply fan (7) and is covered on net
The air filter screen (8) of bottom is covered, connecting rod (9) are arranged in one end of the cross bar (4), and one end of the connecting rod (9), which is worn, to be connected to
A piece shaft (13) simultaneously connects a motion bar (10) by shaft (13), passes through support rod (11) at the top of the connecting rod (9)
It supports hose (3), hose (3) one end connection spray painting head (12), motion bar (10) one end support spray painting head (12).
4. a kind of technique for surface treatment of aluminium alloy sections according to claim 3, it is characterised in that: in the filter box (15)
Portion is equipped with three layers of particulate matter sieve (16), and three layers of particulate matter sieve (16) online pore diameter size are gradually reduced from the bottom up.
5. a kind of technique for surface treatment of aluminium alloy sections according to claim 3, it is characterised in that: the spray painting head (12)
By being rotatablely connected between shaft (13) and connecting rod (9), and the rotation amplitude of spray painting head (12) is 0-60 °.
6. a kind of technique for surface treatment of aluminium alloy sections according to claim 3, it is characterised in that: the water pump (2) one
Side is equipped with the heating power supply (17) positioned at material box (1) bottom, is connected with a heating tube at the top of the heating power supply (17)
(18)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910213551.9A CN109807050A (en) | 2019-03-20 | 2019-03-20 | A kind of technique for surface treatment of aluminium alloy sections |
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| CN201910213551.9A CN109807050A (en) | 2019-03-20 | 2019-03-20 | A kind of technique for surface treatment of aluminium alloy sections |
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| CN109807050A true CN109807050A (en) | 2019-05-28 |
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| CN201910213551.9A Pending CN109807050A (en) | 2019-03-20 | 2019-03-20 | A kind of technique for surface treatment of aluminium alloy sections |
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| CN110653663A (en) * | 2019-09-25 | 2020-01-07 | 湖南高升宏福家具有限公司 | Surface treatment process for environment-friendly furniture |
| CN111359859A (en) * | 2020-03-20 | 2020-07-03 | 张学付 | Corrugated pipe production manufacturing process |
| CN111389618A (en) * | 2020-03-20 | 2020-07-10 | 张学付 | Bellows production and manufacturing equipment |
| CN112547635A (en) * | 2020-11-19 | 2021-03-26 | 湖南力方轧辊有限公司 | Surfacing device for processing supporting roller |
| CN112609190A (en) * | 2020-12-14 | 2021-04-06 | 李元 | Surface treatment process of aluminum alloy section |
| CN114505719A (en) * | 2022-02-21 | 2022-05-17 | 安徽天地通重型机械有限公司 | Method for processing rotary kiln large gear ring casting blank |
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| CN112609190A (en) * | 2020-12-14 | 2021-04-06 | 李元 | Surface treatment process of aluminum alloy section |
| CN114505719A (en) * | 2022-02-21 | 2022-05-17 | 安徽天地通重型机械有限公司 | Method for processing rotary kiln large gear ring casting blank |
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