CN104032348A - An anodic oxidation tank and brightening technology of strip-series aluminum alloy section bars - Google Patents
An anodic oxidation tank and brightening technology of strip-series aluminum alloy section bars Download PDFInfo
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- CN104032348A CN104032348A CN201410245736.5A CN201410245736A CN104032348A CN 104032348 A CN104032348 A CN 104032348A CN 201410245736 A CN201410245736 A CN 201410245736A CN 104032348 A CN104032348 A CN 104032348A
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Abstract
The invention relates to an anodic oxidation tank and brightening technology of strip-series aluminum alloy section bars. The device includes an electrolytic tank body, cathodic conductive devices and anodic conductive devices. Interconnected coiling heat exchangers are installed in the sidewalls and the bottom board of the electrolytic tank body which is in clamping connection with the cathodic conductive devices through notches. The device comprises three pairs of anodic conductive devices. Each pair is separately and fixedly arranged on two opposite inner walls of the electrolytic tank body. From the top to the bottom, the three pairs of anodic conductive devices have a hollow inner octagonal structure, an inner hexagonal structure and an inner pentagonal structure. The brightening technology includes a step of self-checking and placement, a step of oil removing and washing, a step of chemical brightening and washing, a step of neutralization bright dipping and washing, a step of anodic oxidation and washing, a step of hole sealing, washing and drying and a step of dismounting, checking and packaging. The anodic oxidation tank of strip-series aluminum alloy section bars has excellent conductive performance, can effectively enhance the uniformity of the surface quality of strip-series aluminum alloy section bars, can effectively reduce the waste of raw materials and is suitable for extensive popularization and application.
Description
Technical field
The present invention relates to bar line aluminium alloy section bar processing technique field, the particularly anodizing tank of a kind of line aluminium alloy section bar and bright technique.
Background technology
Modern society decorates and mainly adopts aluminium alloy section structure material with door and window or curtain wall, this section bar be mainly that the single and long-term exposure of outward appearance is held corrosion-prone shortcoming in air, the existence of this shortcoming makes it more and more be difficult to meet Contemporary young user for the individual demand of decorating with structured material.For optimize aluminium alloy extrusions decorative effect, strengthen its erosion resistance and increase the service life, aluminium alloy extrusions generally all will carry out surface treatment.The surface treatment of aluminium alloy extrusions is magnificent the turning round of the perfect Ji Shenyuyu of aluminium alloy extrusions modern society, the method that conventional aluminium alloy section surface is processed is anonizing, by anonizing, can form dense oxidation film at aluminium alloy section surface, the existence of this oxide film can significantly improve erosion resistance, wear resistance and the decorate properties of aluminium alloy extrusions.
The anode oxidative treatment method that is applied to aluminium alloy extrusions in prior art refers to: in certain electrolytic solution, take aluminium alloy extrusions part as anode, take stainless steel or aluminum metal as negative electrode, in strongly-acid electrolytic solution, aluminium alloy extrusions is carried out to surface-treated process.But the anodic oxidation treatment device of general aluminium alloy extrusions exists certain built on the sand or due to the inhomogeneous problem of equipment to electrolytic solution heating or cooling in the clamping of the aluminium alloy extrusions with to be oxidized, thereby easily make the surface quality of the aluminium alloy extrusions that this equipment makes uneven, be difficult to meet human consumer's consumers demand.Therefore, studying a kind of anodizing tank that is applicable to bar line aluminium alloy section bar is the current problem that will study.
Summary of the invention
Technical problem to be solved by this invention is: overcome deficiency of the prior art, a kind of anodizing tank that is applicable to bar line aluminium alloy section bar is provided, this device conductivity is good, is difficult for electric leakage, can significantly unify and improve the surface quality of aluminium alloy extrusions.
The technical solution adopted for the present invention to solve the technical problems is: the anodizing tank of a kind of line aluminium alloy section bar, this anodic oxidation device comprises cell body, negative electrode electric installation and anode conducting device, the trough rim end face of described cell body has equally distributed recess, and cell body side and base plate interior have the tube exchanger of connection; Negative electrode electric installation is by recess and cell body clamping, and described negative electrode electric installation is " 7 " type structure, and the angle that the adjacent edge of " 7 " type structure forms is 90 °, and in " 7 " type structure, the outer wall of horizontal edge is enclosed with insulation layer; Described anode conducting device is fixedly installed on two opposed inner walls of cell body in pairs and respectively, anode conducting device be bolted can bending structure, the logarithm of anode conducting device is three pairs, from top to bottom, its front end is followed successively by the interior anistree structure of hollow type, interior hexagonal structure and interior five corner structures that cross-sectional area increases gradually.
Further, in described " 7 " type structure, the front end of horizontal edge is connected with power cathode by wire, for preventing that electrolytic solution from forming dead angle in cell body, and is beneficial to the cleaning to cell body, and the inwall turning of described cell body is fillet structure.
Further, the in pairs described and end that is fixedly installed on respectively the anode conducting device in two opposed inner walls of cell body is connected cell body is outside by wire, and the height of described anode conducting device is lower than 4/5 of cell body inside wall height.
Further, the vertical range of the trough rim of described " 7 " type structure vertical edge and the clamping of " 7 " type structure is 1.8-3 times of " 7 " type structure vertical edge thickness, and the making material of negative electrode electric installation is plumbous.
A bright technique for line aluminium alloy section bar, adopts above-mentioned anodizing tank, and this bright technique has following steps:
A. self check is added
Aluminium alloy extrusions is carried out to surface examination, record same batch of each section bar surface flatness, defect, burr and aberration level, after record, the two ends of aluminium alloy extrusions are respectively installed on the anode conducting device of oxidation unit;
Further, if Surface of profile slickness, defect, burr level are higher, can before added, to Surface of profile, carry out mechanical polishing, object is the mechanical line that reduces or eliminates product surface, and mechanical polishing degree is determined according to customer demand; For guaranteeing production safety, the every groove dress of 1 Wan An training cell body vermicelli amass as 60-70m
2for the best, Special Circumstances must not surpass 60m
2, the every groove dress of 1.2 Wan An training cell body vermicelli amass as 70-90m
2, oxidation unit, when second stage employ, is installed the anode conducting device at aluminium alloy extrusions two ends and need to be removed oxide film.
B. oil removing washing
Degreaser is injected to cell body, at normal temperatures aluminium alloy section surface is carried out to oil removing, the composition of described degreaser is the sulphuric acid soln of 150-200g/L, process after 2-8min with clear water wash to the pH of Surface of profile be 4-7, degreaser and washes are discharged;
Further, the greasy dirt of in particular cases looking Surface of profile is determined the treatment time.
C. chemistry light washing
According to the demand of product photometric quantity, can select three acid or two acid treatment modes, specific practice is: confection is injected to cell body, in the time of 35-45 ℃, aluminium alloy section surface is processed to 5-10min, then with clear water wash to the pH of Surface of profile be 5-7, confection and washes are discharged; The pH value of described confection is 3.0-3.5, confection comprises that concentration is the etching agent of 8-10g/L and the ammonium bifluoride that F concentration is 30-40g/L, wherein, etching agent is two sour mixtures or three sour mixtures, two sour mixtures are that concentration is that the phosphoric acid of 55-65g/L and sulfuric acid that concentration is 9-12g/L obtain according to mass ratio configuration in 30: 70, and three sour mixtures are that concentration is the phosphoric acid of 55-65g/L, sulfuric acid that concentration is 9-12g/L and the concentration nitric acid that is 4-5.5g/L according to mass ratio (70-80): (15-20): (5-10) configure and obtain;
D. in, wash with bright dipping
Neutralization reagent is injected to cell body, in at normal temperatures aluminium alloy section surface being carried out and technique, described neutralization reagent is that concentration is the sulfuric acid of 180-200g/L or the nitric acid that concentration is 140-180g/L, process after 2-4min with clear water wash to the pH of Surface of profile be 3-5, neutralization reagent and washes are discharged;
Bright dipping reagent is injected to cell body, at normal temperatures aluminium alloy section surface is carried out to bright dipping technique, described bright dipping reagent is that concentration is the nitric acid of 200-280g/L, process after 2-4min with clear water wash to the pH of Surface of profile be 5-7, bright dipping reagent and washes are discharged;
E. anodic oxidation washing
This step is to a kind of water white film of the Surface Creation of goods, prevents the surface corrosion of material, and the thickness of rete is to adjust according to client's demand, and thickness forms the impact that is conventionally subject to current density, voltage, tank liquor concentration and temperature;
Inject the electrolyte in cell body, when temperature is 20 ± 2 ℃, aluminium alloy section surface is carried out to oxidizing process, the sulphuric acid soln that described electrolytic solution is 130-160g/L and≤aluminum ion of 20g/L forms, after processing with clear water wash to the pH of Surface of profile be 5-7, electrolytic solution and washes are discharged, treatment time determines according to the thickness of required oxide film, current density and formula L=ITK, and wherein, the L in formula is oxide film micron thickness, K is constant 0.28-0.3, and I is current density A/m
2, T is oxidation the number of minutes;
After the long-pending calculating accurately of dress vermicelli, from above-mentioned formula, just can try to achieve the required oxidization time of any thickness of oxidation film; Aluminium section bar should be avoided being immersed in for a long time in tank before anodic oxidation, and maximum duration is no more than 3min, in order to avoid the acid etch Surface of profile in tank; Through anodised product, the time stopping in groove is no more than 5min, prevents from affecting the quality of oxide film; Require the high bright product of brightness, current density is selected 1-1.2A/dm
2be advisable.
F. sealing of hole washing and drying
Pore-sealing liquid is injected to cell body, when temperature is 25 ± 2 ℃, aluminium alloy section surface is carried out to hole-sealing technology, the nickel ion that described pore-sealing liquid is 0.8-1.5g/L by concentration and the fluorion of 0.3-0.65g/L form, and the pH value of pore-sealing liquid is 5.5-6.5, and the hole-sealing technology treatment time determines according to the thickness of oxide film, general each film sealing of hole 1 minute, after being disposed with clear water wash to the pH of Surface of profile be 5-7.5, pore-sealing liquid and washes are discharged, treat that aluminium alloy section surface is dry;
G. undercarriage test package
Aluminium alloy extrusions is taken off to packing warehouse-in after record of survey from anode conducting device.
Undercarriage should be handled with care, note anti-damage, anti-collision distortion, apart from undercarriage 3m, what do not allow section bar touches wound sound, what length was greater than 4m processes directly can being placed on the solarization bin on place of packing without finishing mandrel, and the product of not drying (drip-dry) is not placed on the solarization bin on place; Product needed is done lower step processing, requires first to process product being placed on " chassis " of packing afterwards.
Beneficial effect: in technical scheme of the present invention, cell body side and base plate interior have the setting of the tube exchanger of connection, can cell body be heated up comparatively accurately or be lowered the temperature, facilitate the intensification of electrolytic solution, the oven dry of cooling and bar line aluminium alloy section bar, the front end of anode conducting device interior anistree structure from top to bottom, the setting of interior hexagonal structure and interior five corner structures, can facilitate the firm clamping of anode conducting device and the bar line aluminium alloy section bar of different cross section shape to be oxidized, improve the stability of aluminium alloy extrusions when oxidation, thereby reduce later stage scrap rate, negative electrode electric installation, by the setting of recess and cell body clamping and insulation layer, can effectively improve the overall security of this device, anode conducting device is fixedly installed on two opposed inner walls of cell body in pairs and respectively, anode conducting device is the setting that the two-part that is bolted can bending structure, can facilitate the installation and removal of bar type aluminium alloy section bar, be conducive to aluminium alloy extrusions and be oxidized in the electrolytic solution of homogeneous.
The anodizing tank that is applicable to bar line aluminium alloy section bar that adopts technical scheme gained of the present invention, conductivity is good, can effectively improve the consistence of bar line aluminium alloy Surface of profile quality, effectively reduces waste of raw materials, is applicable to large-scale promotion application.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described;
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A-A sectional view in Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1;
1. cell body in figure, 11. leakage fluid drams, 12. tube exchangers, 2. negative electrode electric installation, 21. insulation layers, 3. anode conducting device.
Embodiment
The present invention is further illustrated by reference to the accompanying drawings now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present invention in a schematic way, so it only shows the formation relevant with the present invention.
As Fig. 1, 2, the anodizing tank of a kind of line aluminium alloy section bar shown in 3, this anodic oxidation device comprises cell body 1, negative electrode electric installation 2 and anode conducting device 3, the trough rim end face of described cell body 1 has equally distributed recess, cell body 1 bottom centre has leakage fluid dram 11, leakage fluid dram 11 ports have rotation gate, cell body 1 side and base plate interior have the tube exchanger 12 of connection, the import of tube exchanger 12 and outlet are separately positioned on the two relative side of cell body 1 base plate, inlet and outlet is respectively arranged with valve, negative electrode electric installation 2 is by recess and cell body 1 clamping, and described negative electrode electric installation 2 is " 7 " type structure, and the angle that the adjacent edge of " 7 " type structure forms is 90 °, and in " 7 " type structure, the outer wall of horizontal edge is enclosed with insulation layer 21, described anode conducting device 3 is fixedly installed on two opposed inner walls of cell body 1 in pairs and respectively, anode conducting device 3 can bending structure for what be bolted, the logarithm of anode conducting device 3 is three pairs, from top to bottom, its front end is followed successively by the interior anistree structure of hollow type, interior hexagonal structure and interior five corner structures that cross-sectional area increases gradually.
In " 7 " type structure, the front end of horizontal edge is connected with power cathode by wire, the inwall turning of cell body 1 is fillet structure, the end that is fixedly installed in pairs and respectively the anode conducting device 3 in two opposed inner walls of cell body 1 is connected cell body 1 is outside by wire, and the height of described anode conducting device 3 is lower than 4/5 of cell body 1 inside wall height.
The vertical range of the trough rim of " 7 " type structure vertical edge and the clamping of " 7 " type structure is 1.8 times of " 7 " type structure vertical edge thickness, and the height of " 7 " type structure is less than the height of cell body 1 inwall, and the making material of negative electrode electric installation 2 is plumbous.
A bright technique for line aluminium alloy section bar, adopts above-mentioned anodizing tank, and this bright technique has following steps:
A. self check is added
Aluminium alloy extrusions is carried out to surface examination, record same batch of each section bar surface flatness, defect, burr and aberration level, after record, the two ends of aluminium alloy extrusions are respectively installed on the anode conducting device 3 of oxidation unit;
Further, if Surface of profile slickness, defect, burr level are higher, can before added, to Surface of profile, carry out mechanical polishing, object is the mechanical line that reduces or eliminates product surface, and mechanical polishing degree is determined according to customer demand; For guaranteeing production safety, the every groove dress of 1 Wan An training cell body 1 vermicelli amass as 60-70m
2for the best, Special Circumstances must not surpass 60m
2, the every groove dress of 1.2 Wan An training cell body 1 vermicelli amass as 70-90m
2, oxidation unit, when second stage employ, is installed the anode conducting device at aluminium alloy extrusions two ends and need to be removed oxide film.
B. oil removing washing
Degreaser is injected to cell body 1, at normal temperatures aluminium alloy section surface is carried out to oil removing, the sulphuric acid soln that the composition of described degreaser is 150g/L, process after 6min with clear water wash to the pH of Surface of profile be 4-7, degreaser and washes are discharged; In particular cases look the greasy dirt of Surface of profile and determine the treatment time.
C. chemistry light washing
According to the demand of product photometric quantity, can select three acid or two acid treatment modes, specific practice is: confection is injected to cell body 1, in the time of 35-45 ℃, aluminium alloy section surface is processed to 5-10min, then with clear water wash to the pH of Surface of profile be 5-7, confection and washes are discharged; The pH value of described confection is 3.0-3.5, confection comprises that concentration is the etching agent of 10g/L and the ammonium bifluoride that F concentration is 30g/L, wherein, etching agent is two sour mixtures or three sour mixtures, two sour mixtures are that concentration is that the phosphoric acid of 65g/L and sulfuric acid that concentration is 12g/L obtain according to mass ratio configuration in 30: 70, and three sour mixtures are that concentration is that the nitric acid that the phosphoric acid of 65g/L, sulfuric acid that concentration is 12g/L and concentration are 5.5g/L configures and obtains according to mass ratio at 80: 15: 10;
D. in, wash with bright dipping
Neutralization reagent is injected to cell body 1, in at normal temperatures aluminium alloy section surface being carried out and technique, described neutralization reagent is that concentration is the sulfuric acid of 200g/L or the nitric acid that concentration is 180g/L, process after 4min with clear water wash to the pH of Surface of profile be 3-5, neutralization reagent and washes are discharged;
Bright dipping reagent is injected to cell body 1, at normal temperatures aluminium alloy section surface is carried out to bright dipping technique, described bright dipping reagent is that concentration is the nitric acid of 280g/L, process after 2-4min with clear water wash to the pH of Surface of profile be 5-7, bright dipping reagent and washes are discharged;
E. anodic oxidation washing
This step is to a kind of water white film of the Surface Creation of goods, prevents the surface corrosion of material, and the thickness of rete is to adjust according to client's demand, and thickness forms the impact that is conventionally subject to current density, voltage, tank liquor concentration and temperature;
Inject the electrolyte in cell body 1, when temperature is 20 ± 2 ℃, aluminium alloy section surface is carried out to oxidizing process, the sulphuric acid soln that described electrolytic solution is 160g/L and≤aluminum ion of 20g/L forms, after processing with clear water wash to the pH of Surface of profile be 5-7, electrolytic solution and washes are discharged, treatment time determines according to the thickness of required oxide film, current density and formula L=ITK, and wherein, the L in formula is oxide film micron thickness, K is constant 0.28-0.3, and I is current density A/m
2, T is oxidation the number of minutes;
After the long-pending calculating accurately of dress vermicelli, from above-mentioned formula, just can try to achieve the required oxidization time of any thickness of oxidation film; Aluminium section bar should be avoided being immersed in for a long time in tank before anodic oxidation, and maximum duration is no more than 3min, in order to avoid the acid etch Surface of profile in tank; Through anodised product, the time stopping in groove is no more than 5min, prevents from affecting the quality of oxide film; Require the high bright product of brightness, current density is selected 1-1.2A/dm
2be advisable.
F. sealing of hole washing and drying
Pore-sealing liquid is injected to cell body 1, when temperature is 25 ± 2 ℃, aluminium alloy section surface is carried out to hole-sealing technology, the nickel ion that described pore-sealing liquid is 1.5g/L by concentration and the fluorion of 0.65g/L form, and the pH value of pore-sealing liquid is 5.5-6.5, and the hole-sealing technology treatment time determines according to the thickness of oxide film, general each film sealing of hole 1 minute, after being disposed with clear water wash to the pH of Surface of profile be 5-7.5, pore-sealing liquid and washes are discharged, treat that aluminium alloy section surface is dry;
G. undercarriage test package
Aluminium alloy extrusions is taken off to packing warehouse-in after record of survey from anode conducting device 3.
Above-mentioned embodiment is only explanation technical conceive of the present invention and feature; its object is to allow person skilled in the art can understand content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (7)
1. the anodizing tank of a bar line aluminium alloy section bar, it is characterized in that: this anodic oxidation device comprises cell body (1), negative electrode electric installation (2) and anode conducting device (3), the trough rim end face of described cell body (1) has equally distributed recess, and cell body (1) side and base plate interior have the tube exchanger (12) of connection; Negative electrode electric installation (2) is by recess and cell body (1) clamping,
Described negative electrode electric installation (2) is " 7 " type structure, and the angle that the adjacent edge of " 7 " type structure forms is 90 °, and in " 7 " type structure, the outer wall of horizontal edge is enclosed with insulation layer (21); Described anode conducting device (3) is fixedly installed on two opposed inner walls of cell body (1) in pairs and respectively, anode conducting device (3) can bending structure for what be bolted, the logarithm of anode conducting device (3) is three pairs, from top to bottom, its front end is followed successively by the interior anistree structure of hollow type, interior hexagonal structure and interior five corner structures that cross-sectional area increases gradually.
2. the anodizing tank of according to claim 1 line aluminium alloy section bar, is characterized in that: in described " 7 " type structure, the front end of horizontal edge is connected with power cathode by wire.
3. the anodizing tank of according to claim 1 line aluminium alloy section bar, is characterized in that: the inwall turning of described cell body (1) is fillet structure.
4. the anodizing tank of according to claim 1 line aluminium alloy section bar, is characterized in that: the in pairs described and end that is fixedly installed on respectively the anode conducting device (3) in two opposed inner walls of cell body (1) is connected cell body (1) is outside by wire.
5. the anodizing tank of according to claim 1 line aluminium alloy section bar, is characterized in that: the height of described anode conducting device (3) is lower than 4/5 of cell body (1) inside wall height.
6. the anodizing tank of according to claim 1 line aluminium alloy section bar, is characterized in that: the 1.8-3 that the vertical range of the trough rim of described " 7 " type structure vertical edge and the clamping of " 7 " type structure is " 7 " type structure vertical edge thickness doubly.
7. a bright technique for bar line aluminium alloy section bar, is characterized in that: adopt the anodizing tank described in claim 1-6 any one, this bright technique has following steps:
A. self check is added
Aluminium alloy extrusions is carried out to surface examination, record same batch of each section bar surface flatness, defect, burr and aberration level, after record, the two ends of aluminium alloy extrusions are respectively installed on the anode conducting device (3) of oxidation unit;
B. oil removing washing
Degreaser is injected to cell body (1), at normal temperatures aluminium alloy section surface is carried out to oil removing, the composition of described degreaser is the sulphuric acid soln of 150-200g/L, process after 2-8min with clear water wash to the pH of Surface of profile be 4-7, degreaser and washes are discharged;
C. chemistry light washing
According to the demand of product photometric quantity, can select three acid or two acid treatment modes, specific practice is: confection is injected to cell body (1), in the time of 35-45 ℃, aluminium alloy section surface is processed to 5-10min, then with clear water wash to the pH of Surface of profile be 5-7, confection and washes are discharged; The pH value of described confection is 3.0-3.5, confection comprises that concentration is the etching agent of 8-10g/L and the ammonium bifluoride that F concentration is 30-40g/L, wherein, etching agent is two sour mixtures or three sour mixtures, two sour mixtures are that concentration is that the phosphoric acid of 55-65g/L and sulfuric acid that concentration is 9-12g/L obtain according to mass ratio configuration in 30: 70, and three sour mixtures are that concentration is the phosphoric acid of 55-65g/L, sulfuric acid that concentration is 9-12g/L and the concentration nitric acid that is 4-5.5g/L according to mass ratio (70-80): (15-20): (5-10) configure and obtain;
D. in, wash with bright dipping
Neutralization reagent is injected to cell body (1), in at normal temperatures aluminium alloy section surface being carried out and technique, described neutralization reagent is that concentration is the sulfuric acid of 180-200g/L or the nitric acid that concentration is 140-180g/L, process after 2-4min with clear water wash to the pH of Surface of profile be 3-5, neutralization reagent and washes are discharged;
Bright dipping reagent is injected to cell body (1), at normal temperatures aluminium alloy section surface is carried out to bright dipping technique, described bright dipping reagent is that concentration is the nitric acid of 200-280g/L, process after 2-4min with clear water wash to the pH of Surface of profile be 5-7, bright dipping reagent and washes are discharged;
E. anodic oxidation washing
Inject the electrolyte in cell body (1), when temperature is 20 ± 2 ℃, aluminium alloy section surface is carried out to oxidizing process, described electrolytic solution be 130-160g/L sulphuric acid soln and≤aluminum ion of 20g/L forms, after processing with clear water wash to the pH of Surface of profile be 5-7, electrolytic solution and washes are discharged, treatment time determines according to the thickness of required oxide film, current density and formula L=ITK, wherein, L in formula is oxide film micron thickness, K is constant 0.28-0.3, and I is current density A/m
2, T is oxidation the number of minutes;
F. sealing of hole washing and drying
Pore-sealing liquid is injected to cell body (1), when temperature is 25 ± 2 ℃, aluminium alloy section surface is carried out to hole-sealing technology, the nickel ion that described pore-sealing liquid is 0.8-1.5g/L by concentration and the fluorion of 0.3-0.65g/L form, the pH value of pore-sealing liquid is 5.5-6.5, the hole-sealing technology treatment time determines according to the thickness of oxide film, general each film sealing of hole 1 minute, after being disposed with clear water wash to the pH of Surface of profile be 5-7.5, pore-sealing liquid and washes are discharged, treat that aluminium alloy section surface is dry;
G. undercarriage test package
Aluminium alloy extrusions is taken off to packing warehouse-in after record of survey from anode conducting device.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104674319A (en) * | 2014-11-25 | 2015-06-03 | 江门市蓬江区善长五金制品有限公司 | Surface treating method for aluminum product |
| CN107904643A (en) * | 2017-11-30 | 2018-04-13 | 福建旭晖铝业有限公司 | A kind of anodic oxidation aluminium section bar and its preparation process |
| CN110965103A (en) * | 2019-12-26 | 2020-04-07 | 新兴国琳铝业有限公司 | Composite anodic oxidation surface process and treatment device for aluminum profile |
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| CN202925129U (en) * | 2012-11-07 | 2013-05-08 | 北京有色金属研究总院 | Anodizing device used for small workpiece |
| CN203284488U (en) * | 2013-05-21 | 2013-11-13 | 国际铝业(厦门)有限公司 | Aluminium alloy anodic oxidation device |
| CN103643235A (en) * | 2013-11-29 | 2014-03-19 | 台澳铝业（台山）有限公司 | High-brightness aluminum-alloy polishing section and production process thereof |
| CN203866393U (en) * | 2014-06-04 | 2014-10-08 | 张家港市金邦铝业有限公司 | Anodizing tank for bar-shaped aluminum alloy sections |
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| CN104674319A (en) * | 2014-11-25 | 2015-06-03 | 江门市蓬江区善长五金制品有限公司 | Surface treating method for aluminum product |
| CN107904643A (en) * | 2017-11-30 | 2018-04-13 | 福建旭晖铝业有限公司 | A kind of anodic oxidation aluminium section bar and its preparation process |
| CN110965103A (en) * | 2019-12-26 | 2020-04-07 | 新兴国琳铝业有限公司 | Composite anodic oxidation surface process and treatment device for aluminum profile |
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