CN107151810A - Aluminium alloy extrusions and its manufacture method - Google Patents
Aluminium alloy extrusions and its manufacture method Download PDFInfo
- Publication number
- CN107151810A CN107151810A CN201710347795.7A CN201710347795A CN107151810A CN 107151810 A CN107151810 A CN 107151810A CN 201710347795 A CN201710347795 A CN 201710347795A CN 107151810 A CN107151810 A CN 107151810A
- Authority
- CN
- China
- Prior art keywords
- parts
- base material
- aluminum alloy
- alloy base
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
- C25D11/08—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used containing inorganic acids
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Extrusion Of Metal (AREA)
Abstract
The invention discloses a kind of aluminium alloy extrusions and its manufacture method, the manufacture method of aluminium alloy extrusions is comprised the steps of：Degreasing, alkali cleaning, anodic oxidation, sealing of hole, drying.Present invention improves over aluminium alloy anode oxide technique and the hole-sealing technology of aluminum alloy surface oxide-film, manufacturing the oxide-film of obtained aluminium alloy extrusions has good hardness, the corrosion resistance of aluminium section bar and wearability are improved after sealing pores, can be widely applied to the fields such as building, aviation, automobile, medical treatment.
Description
Technical field
The present invention relates to aluminium section bar technical field, more particularly to a kind of aluminium alloy extrusions and its manufacture method.
Background technology
Aluminium alloy density is smaller, and intensity is high, and conductive, excellent heat conductivity, plasticity is good, no black brittleness, easy processing, therefore should
With extensive.But the corrosion potential of aluminium alloy is relatively born, and makes aluminium and its alloy be easy to corrode.In order to improve aluminium alloy
Combination property, is handled aluminium alloy frequently with process for treating surface.Aluminium alloy anode oxide reaction is aluminium alloy additional
The reaction of electrochemical oxidation is carried out under voltage by electric current, in the film of aluminum alloy surface one layer of aluminum oxide of formation, aluminium is improved and closes
Hardness, the corrosion resistance of gold.However, the microhardness of aluminium alloy anode oxide film prepared by technology is generally relatively low at present, it is comprehensive
Mechanical property is not high, it is impossible to meet industrial requirement.Aluminum alloy surface obtains one layer of anode after anodized
Oxide-film is isolated as layer protecting film with extraneous perishable medium, but oxidation film layer be containing nano level hole, it is necessary to
Seal treatment is carried out to aluminium alloy anode oxide film, so as to further improve its corrosion resistance etc..Conventional method has hot water envelope
Close, nickel cobalt salt closes method, chromic salts closing method etc., but these methods can all produce different degrees of pollution, lack a kind of environment
The oxide-film sealing pores method of friendly.
The invention provides a kind of manufacture method of aluminium alloy extrusions, obtained aluminium alloy extrusions hardness height is manufactured, it is anti-corrosion
Property and wearability are good.
The content of the invention
For above shortcomings in the prior art, one of technical problems to be solved by the invention are to provide a kind of aluminium
The manufacture method of alloy profile.
The two of the technical problems to be solved by the invention are to provide a kind of aluminium alloy extrusions.
The present invention seeks to what is be achieved through the following technical solutions：
A kind of manufacture method of aluminium alloy extrusions, is comprised the steps of：
(1) degreasing；
(2) alkali cleaning；
(3) anodic oxidation；
(4) sealing of hole；
(5) dry.
A kind of manufacture method of aluminium alloy extrusions, comprises the steps of, described part is parts by weight：
(1) degreasing：100-150 parts of sulfuric acid are added in 1000-2000 parts of water and are well mixed, ungrease treatment liquid is obtained, will
2-10 parts of aluminum alloy base materials are immersed in ungrease treatment liquid, and dipping temperature is 25-35 DEG C, and dip time is 5-10min, take out aluminium
Alloy base material, is rinsed well with water；
(2) alkali cleaning：30-80 parts of sodium hydroxides are added in 1000-2000 parts of water and are well mixed, alkali wash water is obtained, will be de-
Aluminum alloy base material after fat is immersed in alkali wash water, and dipping temperature is 55-65 DEG C, and dip time is 3-5min, takes out aluminium alloy
Base material, is rinsed well with water；
(3) anodic oxidation：150-250 parts of sulfuric acid, 1-3 parts of aluminum sulfate are added in 1000-2000 parts of water and are well mixed, are obtained
To oxidation electrolyte, the aluminum alloy base material after alkali cleaning is put into the electrolytic cell equipped with oxidation electrolyte, made with aluminum alloy base material
For anode, using stereotype as negative electrode, anodic oxidation condition be DC voltage 12-15V, the temperature of oxidation electrolyte be 20-30 DEG C,
Time 35-50min, then rinses the aluminum alloy base material after anodic oxidation with water well, aluminum alloy base material table after anodic oxidation
Face forms oxide-film；
(4) sealing of hole：Aluminum alloy base material after anodic oxidation is immersed in 35- in 1000-2000 parts 98-100 DEG C of water
50min, then drains surface moisture；
(5) dry：By the aluminum alloy base material after sealing of hole in 60-90 DEG C of dry 2-8h, aluminium alloy extrusions is produced.
A kind of manufacture method of aluminium alloy extrusions, comprises the steps of, described part is parts by weight：
(1) degreasing：100-150 parts of sulfuric acid are added in 1000-2000 parts of water and are well mixed, ungrease treatment liquid is obtained, will
2-10 parts of aluminum alloy base materials are immersed in ungrease treatment liquid, and dipping temperature is 25-35 DEG C, and dip time is 5-10min, take out aluminium
Alloy base material, is rinsed well with water；
(2) alkali cleaning：30-80 parts of sodium hydroxides are added in 1000-2000 parts of water and are well mixed, alkali wash water is obtained, will be de-
Aluminum alloy base material after fat is immersed in alkali wash water, and dipping temperature is 55-65 DEG C, and dip time is 3-5min, takes out aluminium alloy
Base material, is rinsed well with water；
(3) anodic oxidation：By 150-250 parts of sulfuric acid, 1-3 parts of aluminum sulfate, 0.05-0.5 parts of lanthanum sulfates, 1-4 parts of Vitamin Cs
Acid is added in 1000-2000 parts of water and is well mixed, and obtains oxidation electrolyte, and the aluminum alloy base material after alkali cleaning is put into equipped with oxidation
In the electrolytic cell of electrolyte, using aluminum alloy base material as anode, using stereotype as negative electrode, anodic oxidation condition is DC voltage
12-15V, the temperature of oxidation electrolyte are 20-30 DEG C, time 35-50min, then use the aluminum alloy base material after anodic oxidation
Water is rinsed well, and aluminum alloy base material surface forms oxide-film after anodic oxidation；
(4) sealing of hole：Aluminum alloy base material after anodic oxidation is immersed in 35- in 1000-2000 parts 98-100 DEG C of water
50min, then drains surface moisture；
(5) dry：By the aluminum alloy base material after sealing of hole in 60-90 DEG C of dry 2-8h, aluminium alloy extrusions is produced.
A kind of manufacture method of aluminium alloy extrusions, comprises the steps of, described part is parts by weight：
(1) degreasing：100-150 parts of sulfuric acid are added in 1000-2000 parts of water and are well mixed, ungrease treatment liquid is obtained, will
2-10 parts of aluminum alloy base materials are immersed in ungrease treatment liquid, and dipping temperature is 25-35 DEG C, and dip time is 5-10min, take out aluminium
Alloy base material, is rinsed well with water；
(2) alkali cleaning：30-80 parts of sodium hydroxides are added in 1000-2000 parts of water and are well mixed, alkali wash water is obtained, will be de-
Aluminum alloy base material after fat is immersed in alkali wash water, and dipping temperature is 55-65 DEG C, and dip time is 3-5min, takes out aluminium alloy
Base material, is rinsed well with water；
(3) anodic oxidation：By 150-250 parts of sulfuric acid, 1-3 parts of aluminum sulfate, 0.05-0.5 parts of lanthanum sulfates, 1-4 parts of Vitamin Cs
Acid is added in 1000-2000 parts of water and is well mixed, and obtains oxidation electrolyte, and the aluminum alloy base material after alkali cleaning is put into equipped with oxidation
In the electrolytic cell of electrolyte, using aluminum alloy base material as anode, using stereotype as negative electrode, anodic oxidation condition is DC voltage
12-15V, the temperature of oxidation electrolyte are 20-30 DEG C, time 35-50min, then use the aluminum alloy base material after anodic oxidation
Water is rinsed well, and aluminum alloy base material surface forms oxide-film after anodic oxidation；
(4) sealing of hole：200-250 parts of modifying agent, 0.5-1.5 parts of hydrochloric acid, 1000-1500 parts of ethanol are added into 1000-1500
It is well mixed in part water and obtains mixed liquor A, then adds 200-250 parts of isobutyl triethoxy silanes, 1000-1500 parts of ethanol
Enter to be well mixed in 1000-1500 parts of water and obtain mixed liquid B, mixed liquid B is added in mixed liquor A, 500-1000rpm, 20-30
DEG C stirring 12-24h, obtain colloidal sol, the aluminum alloy base material after anodic oxidation be immersed in 20-30 DEG C of colloidal sol, dip time
For 5-15min；The modifying agent is trimethyl phosphate；
(5) dry：By the aluminum alloy base material after sealing of hole in 60-90 DEG C of dry 2-8h, aluminium alloy extrusions is produced.
A kind of manufacture method of aluminium alloy extrusions, comprises the steps of, described part is parts by weight：
(1) degreasing：100-150 parts of sulfuric acid are added in 1000-2000 parts of water and are well mixed, ungrease treatment liquid is obtained, will
2-10 parts of aluminum alloy base materials are immersed in ungrease treatment liquid, and dipping temperature is 25-35 DEG C, and dip time is 5-10min, take out aluminium
Alloy base material, is rinsed well with water；
(2) alkali cleaning：30-80 parts of sodium hydroxides are added in 1000-2000 parts of water and are well mixed, alkali wash water is obtained, will be de-
Aluminum alloy base material after fat is immersed in alkali wash water, and dipping temperature is 55-65 DEG C, and dip time is 3-5min, takes out aluminium alloy
Base material, is rinsed well with water；
(3) anodic oxidation：By 150-250 parts of sulfuric acid, 1-3 parts of aluminum sulfate, 0.05-0.5 parts of lanthanum sulfates, 1-4 parts of Vitamin Cs
Acid is added in 1000-2000 parts of water and is well mixed, and obtains oxidation electrolyte, and the aluminum alloy base material after alkali cleaning is put into equipped with oxidation
In the electrolytic cell of electrolyte, using aluminum alloy base material as anode, using stereotype as negative electrode, anodic oxidation condition is DC voltage
12-15V, the temperature of oxidation electrolyte are 20-30 DEG C, time 35-50min, then use the aluminum alloy base material after anodic oxidation
Water is rinsed well, and aluminum alloy base material surface forms oxide-film after anodic oxidation；
(4) sealing of hole：By 200-250 parts of modifying agent, 0.5-1.5 parts of hydrochloric acid, 5-15 parts of zinc chloride, 1000-1500 parts of ethanol
Add it is well mixed in 1000-1500 part water obtain mixed liquor A, then by 200-250 parts of isobutyl triethoxy silanes,
1000-1500 parts of ethanol, which add to be well mixed in 1000-1500 parts of water, obtains mixed liquid B, and mixed liquid B is added in mixed liquor A,
500-1000rpm, 20-30 DEG C of stirring 12-24h, obtain colloidal sol, the aluminum alloy base material after anodic oxidation are immersed in into 20-30 DEG C
Colloidal sol in, dip time is 5-15min；The modifying agent is trimethyl phosphate and/or ATBC；
(5) dry：By the aluminum alloy base material after sealing of hole in 60-90 DEG C of dry 2-8h, aluminium alloy extrusions is produced.
Preferably, the drying temperature of aluminum alloy base material is 70 DEG C in the step (5).
Preferably, the drying time of aluminum alloy base material is 4h in the step (5).
The present invention also provides a kind of aluminium alloy extrusions, is fabricated by using the above method.
Aluminium alloy extrusions of the present invention and its manufacture method, the technique for improving anodic oxidation and oxide-film sealing of hole, system
Making the oxide-film of obtained aluminium alloy extrusions has good hardness, the corrosion resistance of aluminium alloy extrusions and wear-resisting after sealing pores
Property improve, can be widely applied to the fields such as building, aviation, automobile, medical treatment.
Embodiment
Oxide-film hardness test：The aluminium alloy extrusions without sealing of hole is prepared according to step in embodiment (1)-step (3), is adopted
The microhardness of the oxide-film of aluminium alloy section surface formation is tested with the type microhardness instrument of Fischer HM 2000, load is
500mN, the load time is 20s, and the number of parallel sample is 3, and each parallel sample chooses 10 equally distributed different surveys
Pilot is measured, and is averaged as the microhardness of sample.
Corrosion resistance is tested：According to step in embodiment (1)-step (5) manufacture aluminium alloy extrusions, using electrochemical workstation
(model：CHI660D the corrosion resisting property of aluminium alloy extrusions) is analyzed, reference electrode is saturated calomel electrode (SCE), and auxiliary electrode is
Pt electrodes, using the sodium chloride solution of mass fraction 3.5% as corrosive medium, pumping signal is sine wave, and frequency is 105-10- 2Hz, tests electrochemical impedance, and electrochemical impedance value is bigger, and corrosion resistance is better.
Crocking resistance is tested：According to step in embodiment (1)-step (5) manufacture aluminium alloy extrusions, using high temperature friction
The wearability of abrasion tester (CSEM companies of Switzerland produce, model THT07-135) research oxide-film, is 25 DEG C of progress in temperature
Experiment, the ZrO that friction bead is diameter 6mm2Ceramic wear-resisting ball, friction velocity is 4cm/s, and load 5N, friction length is 8mm,
Sample rubs 350 turns, the quality m of the aluminium alloy extrusions before and after record friction test1And m2, calculate mass loss rate, mass loss
Rate=(m1-m2)/m1× 100%.
Each raw material introduction in embodiment：
Aluminum alloy base material, using 2024 aluminium alloys, composition is shown in Table 1.
Table 1：The composition table of 2024 aluminium alloys
| Mn | Cu | Zn | Cr | Ti | Mg | Si | Fe | Al | |
| Mass fraction/% | 0.46 | 4.36 | 0.07 | <0.01 | 0.01 | 1.49 | 0.14 | 0.25 | Surplus |
Sulfuric acid, use quality fraction is 98% concentrated sulfuric acid, and by Dalian, sea-freight chemical reagent work provides.
Sodium hydroxide, No. CAS：1310-73-2, Zhengzhou Brian Jacks Chemical Co., Ltd. provides.
Aluminum sulfate, No. CAS：10043-01-3, Lian Da Fine Chemical Co., Ltd of Jingzhou City provides.
Lanthanum sulfate, No. CAS：The happy Chemical Co., Ltd. of 10099-60-2, Jin Jin provides.
Ascorbic acid, i.e. L-AA, No. CAS：50-81-7, Zhengzhou Brian Jacks Chemical Co., Ltd. provides.
Stereotype, the plating stereotype that Hua Senda metal materials Co., Ltd of Shenzhen provides, content 99.99%, volume is
100cm×100cm×8cm。
Trimethyl phosphate, No. CAS：512-56-1, Zhangjiagang Ya Rui Chemical Co., Ltd.s provide.
ATBC, No. CAS：77-94-1, Nanjing chemical reagent limited company provides.
Zinc chloride, No. CAS：7646-85-7, Nanjing chemical reagent limited company provides.
Ethanol, using absolute ethyl alcohol, Nanjing chemical reagent limited company provides.
Hydrochloric acid, the mass fraction that Nanjing chemical reagent limited company provides is 37% concentrated hydrochloric acid.
Isobutyl triethoxy silane, No. CAS：17980-47-1, Qufu City Wanda Chemical Co., Ltd. provides.
Embodiment 1
The manufacture method of aluminium alloy extrusions, is comprised the steps of, described part is parts by weight：
(1) degreasing：130 parts of sulfuric acid are added in 1000 parts of water and are well mixed, ungrease treatment liquid is obtained, is by 4 parts, volume
100cm × 100cm × 5cm aluminum alloy base material is immersed in ungrease treatment liquid, and dipping temperature is 25 DEG C, and dip time is
8min, takes out aluminum alloy base material, is rinsed well with water；
(2) alkali cleaning：50 parts of sodium hydroxides are added in 1000 parts of water and are well mixed, alkali wash water are obtained, by the aluminium after degreasing
Alloy base material is immersed in alkali wash water, and dipping temperature is 55 DEG C, and dip time is 3min, is taken out aluminum alloy base material, is rinsed with water
Totally；
(3) anodic oxidation：150 parts of sulfuric acid, 1 part of aluminum sulfate are added in 1000 parts of water and is well mixed, oxidization electrolysis is obtained
Liquid, the aluminum alloy base material after alkali cleaning is put into the electrolytic cell equipped with oxidation electrolyte, using aluminum alloy base material as anode, with lead
Plate is as negative electrode, and anodic oxidation condition is that DC voltage 13V, the temperature of oxidation electrolyte are 25 DEG C, time 35min, then will
Aluminum alloy base material after anodic oxidation is rinsed well with water, and aluminum alloy base material surface forms oxide-film after anodic oxidation；
(4) sealing of hole：Aluminum alloy base material after anodic oxidation is immersed in 45min in 1500 parts 100 DEG C of water, then drained
Surface moisture；
(5) dry：By the aluminum alloy base material after sealing of hole in 70 DEG C of dry 4h, aluminium alloy extrusions is produced.
Embodiment 2
The manufacture method of aluminium alloy extrusions, is comprised the steps of, described part is parts by weight：
(1) degreasing：130 parts of sulfuric acid are added in 1000 parts of water and are well mixed, ungrease treatment liquid is obtained, is by 4 parts, volume
100cm × 100cm × 5cm aluminum alloy base material is immersed in ungrease treatment liquid, and dipping temperature is 25 DEG C, and dip time is
8min, takes out aluminum alloy base material, is rinsed well with water；
(2) alkali cleaning：50 parts of sodium hydroxides are added in 1000 parts of water and are well mixed, alkali wash water are obtained, by the aluminium after degreasing
Alloy base material is immersed in alkali wash water, and dipping temperature is 55 DEG C, and dip time is 3min, is taken out aluminum alloy base material, is rinsed with water
Totally；
(3) anodic oxidation：150 parts of sulfuric acid, 1 part of aluminum sulfate, 0.12 part of lanthanum sulfate, 1 part of ascorbic acid are added 1000 parts
It is well mixed in water, obtains oxidation electrolyte, the aluminum alloy base material after alkali cleaning is put into the electrolytic cell equipped with oxidation electrolyte,
Using aluminum alloy base material as anode, using stereotype as negative electrode, anodic oxidation condition is DC voltage 14V, the temperature of oxidation electrolyte
Spend for 25 DEG C, time 35min, then rinse the aluminum alloy base material after anodic oxidation with water well, aluminium alloy after anodic oxidation
Substrate surface formation oxide-film；
(4) sealing of hole：Aluminum alloy base material after anodic oxidation is immersed in 45min in 1500 parts 100 DEG C of water, then drained
Surface moisture；
(5) dry：By the aluminum alloy base material after sealing of hole in 70 DEG C of dry 4h, aluminium alloy extrusions is produced.
Embodiment 3
It is substantially the same manner as Example 2, differ only in, the consumption of ascorbic acid is in step (3) in the present embodiment 3
1.5 part.
Embodiment 4
It is substantially the same manner as Example 2, differ only in, the consumption of ascorbic acid is 2 in step (3) in the present embodiment 4
Part.
Embodiment 5
It is substantially the same manner as Example 2, differ only in, the consumption of ascorbic acid is in step (3) in the present embodiment 5
2.5 part.
Embodiment 6
The manufacture method of aluminium alloy extrusions, is comprised the steps of, described part is parts by weight：
(1) degreasing：130 parts of sulfuric acid are added in 1000 parts of water and are well mixed, ungrease treatment liquid is obtained, is by 4 parts, volume
100cm × 100cm × 5cm aluminum alloy base material is immersed in ungrease treatment liquid, and dipping temperature is 25 DEG C, and dip time is
8min, takes out aluminum alloy base material, is rinsed well with water；
(2) alkali cleaning：50 parts of sodium hydroxides are added in 1000 parts of water and are well mixed, alkali wash water are obtained, by the aluminium after degreasing
Alloy base material is immersed in alkali wash water, and dipping temperature is 55 DEG C, and dip time is 3min, is taken out aluminum alloy base material, is rinsed with water
Totally；
(3) anodic oxidation：150 parts of sulfuric acid, 1 part of aluminum sulfate, 0.12 part of lanthanum sulfate, 2 parts of ascorbic acid are added 1000 parts
It is well mixed in water, obtains oxidation electrolyte, the aluminum alloy base material after alkali cleaning is put into the electrolytic cell equipped with oxidation electrolyte,
Using aluminum alloy base material as anode, using stereotype as negative electrode, anodic oxidation condition is DC voltage 14V, the temperature of oxidation electrolyte
Spend for 25 DEG C, time 35min, then rinse the aluminum alloy base material after anodic oxidation with water well, aluminium alloy after anodic oxidation
Substrate surface formation oxide-film；
(4) sealing of hole：200 parts of modifying agent, 0.5 part of hydrochloric acid, 1000 parts of ethanol are added to be well mixed in 1000 parts of water and obtained
Mixed liquor A, 200 parts of isobutyl triethoxy silanes, 1000 parts of ethanol then added and mixed in 1000 parts of water
Liquid B is closed, mixed liquid B is added in mixed liquor A, 800rpm, 25 DEG C of stirring 18h obtain colloidal sol, by the aluminium alloy after anodic oxidation
Base material is immersed in 25 DEG C of colloidal sol, and dip time is 5min；
(5) dry：By the aluminum alloy base material after sealing of hole in 70 DEG C of dry 4h, aluminium alloy extrusions is produced.
Step (4) described modifying agent is trimethyl phosphate.
Embodiment 7
The manufacture method of aluminium alloy extrusions, is comprised the steps of, described part is parts by weight：
(1) degreasing：130 parts of sulfuric acid are added in 1000 parts of water and are well mixed, ungrease treatment liquid is obtained, is by 4 parts, volume
100cm × 100cm × 5cm aluminum alloy base material is immersed in ungrease treatment liquid, and dipping temperature is 25 DEG C, and dip time is
8min, takes out aluminum alloy base material, is rinsed well with water；
(2) alkali cleaning：50 parts of sodium hydroxides are added in 1000 parts of water and are well mixed, alkali wash water are obtained, by the aluminium after degreasing
Alloy base material is immersed in alkali wash water, and dipping temperature is 55 DEG C, and dip time is 3min, is taken out aluminum alloy base material, is rinsed with water
Totally；
(3) anodic oxidation：150 parts of sulfuric acid, 1 part of aluminum sulfate, 0.12 part of lanthanum sulfate, 2 parts of ascorbic acid are added 1000 parts
It is well mixed in water, obtains oxidation electrolyte, the aluminum alloy base material after alkali cleaning is put into the electrolytic cell equipped with oxidation electrolyte,
Using aluminum alloy base material as anode, using stereotype as negative electrode, anodic oxidation condition is DC voltage 14V, the temperature of oxidation electrolyte
Spend for 25 DEG C, time 35min, then rinse the aluminum alloy base material after anodic oxidation with water well, aluminium alloy after anodic oxidation
Substrate surface formation oxide-film；
(4) sealing of hole：200 parts of modifying agent, 0.5 part of hydrochloric acid, 7 parts of zinc chloride, 1000 parts of ethanol are added in 1000 parts of water and mixed
Conjunction uniformly obtains mixed liquor A, and then 200 parts of isobutyl triethoxy silanes, 1000 parts of ethanol are added in 1000 parts of water and mixed
Mixed liquid B uniformly is obtained, mixed liquid B is added in mixed liquor A, 800rpm, 25 DEG C of stirring 18h obtain colloidal sol, by anodic oxidation
Aluminum alloy base material afterwards is immersed in 25 DEG C of colloidal sol, and dip time is 5min；
(5) dry：By the aluminum alloy base material after sealing of hole in 70 DEG C of dry 4h, aluminium alloy extrusions is produced.
Step (4) described modifying agent is trimethyl phosphate.
Embodiment 8
It is substantially the same manner as Example 7, differ only in, step (4) described modifying agent is citric acid three in the present embodiment 8
Butyl ester.
Embodiment 9
Preferably, the modifying agent in the step (4) is trimethyl phosphate and trimethyl citrate, the trimethyl phosphate
Weight part ratio with trimethyl citrate is (1-5):(1-3).
It is substantially the same manner as Example 7, differ only in, step (4) described modifying agent is tripotassium phosphate in the present embodiment 9
Ester and ATBC, the weight part ratio of the trimethyl phosphate and ATBC is 4:1.
Electrochemical impedance value test result：Electrochemical impedance value is 2.48 × 107Ω/cm2；Crocking resistance test result：
Mass loss rate is 3.2%.
Test case 1
The hardness of the oxide-film on the aluminum alloy base material surface prepared to embodiment is tested.Specific test result is shown in Table 2.
Table 2：Aluminum alloy base material surface film oxide micro-hardness testing result table
| Microhardness/HV | |
| Embodiment 1 | 421 |
| Embodiment 2 | 487 |
| Embodiment 3 | 542 |
| Embodiment 4 | 595 |
| Embodiment 5 | 581 |
Comparing embodiment 2-5 and embodiment 1, embodiment 2-5 adds rare-earth salts lanthanum sulfate in oxidation electrolyte, by excellent
The microhardness of oxide-film of aluminum alloy surface formation can be improved by changing the consumption of ascorbic acid, be that rare-earth salts adds the reason for possible
The surface defect of oxide-film can be reduced by entering, and make tissue finer and close, the growth of the coordination ability of ascorbic acid to anode oxide film
Process generates influence.
Test case 2
The corrosion resisting property of the aluminium alloy extrusions prepared to embodiment is tested.Specific test result is shown in Table 3.
Table 3：The electrochemical impedance value test result table of aluminium alloy extrusions
Comparing embodiment 6 and embodiment 4, embodiment 4 carry out sealing of hole using hot water to aluminum alloy surface, and embodiment 6 is used
Trimethyl phosphate carries out sol-gel technique sealing of hole, the aluminium alloy of embodiment 6 as modifying agent to the oxide-film of aluminum alloy surface
The corrosion resisting property of section bar is substantially better than embodiment 4.Comparing embodiment 7 and embodiment 6, inventors be surprised to learn that, embodiment 7 is in system
Zinc chloride is added during standby colloidal sol, the presence of zinc ion can improve stop of the aluminium alloy section surface film layer to corrosive ions and make
With the generation of inhibition of corrosion.
Test case 3
The crocking resistance of the aluminium alloy extrusions prepared to embodiment is tested.Specific test result is shown in Table 4.
Table 4：The crocking resistance test result table of aluminium alloy extrusions
| Mass loss rate/% | |
| Embodiment 4 | 5.4 |
| Embodiment 6 | 4.8 |
| Embodiment 7 | 4.2 |
| Embodiment 8 | 3.9 |
Compared with Example 4, embodiment 6 can improve the antifriction of aluminium alloy section surface using sol-gel technique sealing of hole
Wipe performance.Zinc chloride is added when embodiment 7 prepares colloidal sol can further improve the rub resistance on surface.
It is described above, it is only the preferred embodiments of the present invention, the limitation of other forms is not done to the present invention, appoints
The equivalence enforcement what those skilled in the art is changed to change on an equal basis possibly also with the technology contents of the disclosure above
Example.It is every without departing from the present invention program content, the technical spirit according to the present invention any is simply repaiied to made for any of the above embodiments
Change or equivalent variations, all fall within protection scope of the present invention.
Claims (8)
1. a kind of manufacture method of aluminium alloy extrusions, it is characterised in that comprise the steps of：
(1) degreasing；
(2) alkali cleaning；
(3) anodic oxidation；
(4) sealing of hole；
(5) dry.
2. a kind of manufacture method of aluminium alloy extrusions, it is characterised in that comprise the steps of, described part is parts by weight：
(1) degreasing：100-150 parts of sulfuric acid are added in 1000-2000 parts of water and are well mixed, ungrease treatment liquid are obtained, by 2-10
Part aluminum alloy base material is immersed in ungrease treatment liquid, and dipping temperature is 25-35 DEG C, and dip time is 5-10min, takes out aluminium alloy
Base material, is rinsed well with water；
(2) alkali cleaning：30-80 parts of sodium hydroxides are added in 1000-2000 parts of water and are well mixed, alkali wash water are obtained, after degreasing
Aluminum alloy base material be immersed in alkali wash water, dipping temperature be 55-65 DEG C, dip time is 3-5min, take out aluminum alloy base material,
Rinsed well with water；
(3) anodic oxidation：150-250 parts of sulfuric acid, 1-3 parts of aluminum sulfate are added in 1000-2000 parts of water and are well mixed, oxygen is obtained
Change electrolyte, the aluminum alloy base material after alkali cleaning is put into the electrolytic cell equipped with oxidation electrolyte, sun is used as using aluminum alloy base material
Pole, using stereotype as negative electrode, anodic oxidation condition is that DC voltage 12-15V, the temperature of oxidation electrolyte are 20-30 DEG C, time
35-50min, then rinses the aluminum alloy base material after anodic oxidation with water well, aluminum alloy base material surface shape after anodic oxidation
Into oxide-film；
(4) sealing of hole：Aluminum alloy base material after anodic oxidation is immersed in 35-50min in 1000-2000 parts 98-100 DEG C of water,
Then surface moisture is drained；
(5) dry：By the aluminum alloy base material after sealing of hole in 60-90 DEG C of dry 2-8h, aluminium alloy extrusions is produced.
3. a kind of manufacture method of aluminium alloy extrusions, it is characterised in that comprise the steps of, described part is parts by weight：
(1) degreasing：100-150 parts of sulfuric acid are added in 1000-2000 parts of water and are well mixed, ungrease treatment liquid are obtained, by 2-10
Part aluminum alloy base material is immersed in ungrease treatment liquid, and dipping temperature is 25-35 DEG C, and dip time is 5-10min, takes out aluminium alloy
Base material, is rinsed well with water；
(2) alkali cleaning：30-80 parts of sodium hydroxides are added in 1000-2000 parts of water and are well mixed, alkali wash water are obtained, after degreasing
Aluminum alloy base material be immersed in alkali wash water, dipping temperature be 55-65 DEG C, dip time is 3-5min, take out aluminum alloy base material,
Rinsed well with water；
(3) anodic oxidation：150-250 parts of sulfuric acid, 1-3 parts of aluminum sulfate, 0.05-0.5 parts of lanthanum sulfates, 1-4 parts of ascorbic acid are added
Enter in 1000-2000 parts of water and be well mixed, obtain oxidation electrolyte, the aluminum alloy base material after alkali cleaning is put into equipped with oxidization electrolysis
In the electrolytic cell of liquid, using aluminum alloy base material as anode, using stereotype as negative electrode, anodic oxidation condition is DC voltage 12-
15V, the temperature of oxidation electrolyte are 20-30 DEG C, time 35-50min, then rush the aluminum alloy base material after anodic oxidation with water
Aluminum alloy base material surface forms oxide-film after wash clean, anodic oxidation；
(4) sealing of hole：Aluminum alloy base material after anodic oxidation is immersed in 35-50min in 1000-2000 parts 98-100 DEG C of water,
Then surface moisture is drained；
(5) dry：By the aluminum alloy base material after sealing of hole in 60-90 DEG C of dry 2-8h, aluminium alloy extrusions is produced.
4. a kind of manufacture method of aluminium alloy extrusions, it is characterised in that comprise the steps of, described part is parts by weight：
(1) degreasing：100-150 parts of sulfuric acid are added in 1000-2000 parts of water and are well mixed, ungrease treatment liquid are obtained, by 2-10
Part aluminum alloy base material is immersed in ungrease treatment liquid, and dipping temperature is 25-35 DEG C, and dip time is 5-10min, takes out aluminium alloy
Base material, is rinsed well with water；
(2) alkali cleaning：30-80 parts of sodium hydroxides are added in 1000-2000 parts of water and are well mixed, alkali wash water are obtained, after degreasing
Aluminum alloy base material be immersed in alkali wash water, dipping temperature be 55-65 DEG C, dip time is 3-5min, take out aluminum alloy base material,
Rinsed well with water；
(3) anodic oxidation：150-250 parts of sulfuric acid, 1-3 parts of aluminum sulfate, 0.05-0.5 parts of lanthanum sulfates, 1-4 parts of ascorbic acid are added
Enter in 1000-2000 parts of water and be well mixed, obtain oxidation electrolyte, the aluminum alloy base material after alkali cleaning is put into equipped with oxidization electrolysis
In the electrolytic cell of liquid, using aluminum alloy base material as anode, using stereotype as negative electrode, anodic oxidation condition is DC voltage 12-
15V, the temperature of oxidation electrolyte are 20-30 DEG C, time 35-50min, then rush the aluminum alloy base material after anodic oxidation with water
Aluminum alloy base material surface forms oxide-film after wash clean, anodic oxidation；
(4) sealing of hole：200-250 parts of modifying agent, 0.5-1.5 parts of hydrochloric acid, 1000-1500 parts of ethanol are added into 1000-1500 parts of water
In be well mixed and obtain mixed liquor A, then by 200-250 part isobutyl triethoxy silanes, the additions of 1000-1500 parts of ethanol
It is well mixed in 1000-1500 parts of water and obtains mixed liquid B, mixed liquid B is added in mixed liquor A, 500-1000rpm, 20-30 DEG C
12-24h is stirred, colloidal sol is obtained, the aluminum alloy base material after anodic oxidation is immersed in 20-30 DEG C of colloidal sol, dip time is
5-15min；The modifying agent is trimethyl phosphate；
(5) dry：By the aluminum alloy base material after sealing of hole in 60-90 DEG C of dry 2-8h, aluminium alloy extrusions is produced.
5. a kind of manufacture method of aluminium alloy extrusions, it is characterised in that comprise the steps of, described part is parts by weight：
(1) degreasing：100-150 parts of sulfuric acid are added in 1000-2000 parts of water and are well mixed, ungrease treatment liquid are obtained, by 2-10
Part aluminum alloy base material is immersed in ungrease treatment liquid, and dipping temperature is 25-35 DEG C, and dip time is 5-10min, takes out aluminium alloy
Base material, is rinsed well with water；
(2) alkali cleaning：30-80 parts of sodium hydroxides are added in 1000-2000 parts of water and are well mixed, alkali wash water are obtained, after degreasing
Aluminum alloy base material be immersed in alkali wash water, dipping temperature be 55-65 DEG C, dip time is 3-5min, take out aluminum alloy base material,
Rinsed well with water；
(3) anodic oxidation：150-250 parts of sulfuric acid, 1-3 parts of aluminum sulfate, 0.05-0.5 parts of lanthanum sulfates, 1-4 parts of ascorbic acid are added
Enter in 1000-2000 parts of water and be well mixed, obtain oxidation electrolyte, the aluminum alloy base material after alkali cleaning is put into equipped with oxidization electrolysis
In the electrolytic cell of liquid, using aluminum alloy base material as anode, using stereotype as negative electrode, anodic oxidation condition is DC voltage 12-
15V, the temperature of oxidation electrolyte are 20-30 DEG C, time 35-50min, then rush the aluminum alloy base material after anodic oxidation with water
Aluminum alloy base material surface forms oxide-film after wash clean, anodic oxidation；
(4) sealing of hole：200-250 parts of modifying agent, 0.5-1.5 parts of hydrochloric acid, 5-15 parts of zinc chloride, 1000-1500 parts of ethanol are added
It is well mixed in 1000-1500 parts of water and obtains mixed liquor A, then by 200-250 parts of isobutyl triethoxy silanes, 1000-
1500 parts of ethanol, which add to be well mixed in 1000-1500 parts of water, obtains mixed liquid B, mixed liquid B is added in mixed liquor A, 500-
1000rpm, 20-30 DEG C of stirring 12-24h, obtain colloidal sol, the aluminum alloy base material after anodic oxidation are immersed in into 20-30 DEG C molten
In glue, dip time is 5-15min；The modifying agent is trimethyl phosphate and/or ATBC；
(5) dry：By the aluminum alloy base material after sealing of hole in 60-90 DEG C of dry 2-8h, aluminium alloy extrusions is produced.
6. the manufacture method of the aluminium alloy extrusions as described in claim any one of 1-5, it is characterised in that in the step (5)
The drying temperature of aluminum alloy base material is 70 DEG C.
7. the manufacture method of aluminium alloy extrusions as claimed in claim 6, it is characterised in that aluminium alloy base in the step (5)
The drying time of material is 4h.
8. a kind of aluminium alloy extrusions, it is characterised in that be fabricated by using method any one of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710347795.7A CN107151810B (en) | 2017-05-17 | 2017-05-17 | Aluminium alloy extrusions and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710347795.7A CN107151810B (en) | 2017-05-17 | 2017-05-17 | Aluminium alloy extrusions and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107151810A true CN107151810A (en) | 2017-09-12 |
| CN107151810B CN107151810B (en) | 2019-01-01 |
Family
ID=59792836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710347795.7A Active CN107151810B (en) | 2017-05-17 | 2017-05-17 | Aluminium alloy extrusions and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107151810B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107641827A (en) * | 2017-09-27 | 2018-01-30 | 辽宁忠旺集团有限公司 | A kind of aluminium alloy anode oxide technique |
| CN108018590A (en) * | 2018-03-19 | 2018-05-11 | 福建奋安铝业有限公司 | A kind of aluminium shape surface treatment process |
| CN109576756A (en) * | 2019-01-21 | 2019-04-05 | 景德镇市宏亿电子科技有限公司 | A kind of aluminium base board machining process |
| CN110079848A (en) * | 2019-04-28 | 2019-08-02 | 安徽华淮新材料有限公司 | Aluminum alloy chemically coarse sand surface treatment method |
| CN111185147A (en) * | 2020-03-21 | 2020-05-22 | 王永芝 | Through-hole type alumina catalyst carrier and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1057683B (en) * | 1975-03-06 | 1982-03-30 | Yoshida Kogyo Kk | PROCESS FOR THE PRODUCTION OF OXIDE SEALED ANODIC FILMS ON ALUMINUM AND SUELEGHE IN PREPARATION FOR COATING OR PAINTING |
| CN1038322A (en) * | 1988-06-04 | 1989-12-27 | 浙江省科技咨询中心预应力大跨建筑技术服务部 | Multi-story long-span double-arch-centering structure system |
| CN102312262A (en) * | 2011-08-22 | 2012-01-11 | 吴江市精工铝字制造厂 | Hard anodization method of mixed acid of copper aluminium alloy |
| CN103215630A (en) * | 2013-04-23 | 2013-07-24 | 沈阳理工大学 | Method for sealing aluminum alloy anode oxide film pore by adopting organic-inorganic composite silica sol |
| CN104233428A (en) * | 2014-09-26 | 2014-12-24 | 湖南大学 | Method for improving alkaline resistance of anode oxide film on surface of aluminum or aluminum alloy material |
-
2017
- 2017-05-17 CN CN201710347795.7A patent/CN107151810B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1057683B (en) * | 1975-03-06 | 1982-03-30 | Yoshida Kogyo Kk | PROCESS FOR THE PRODUCTION OF OXIDE SEALED ANODIC FILMS ON ALUMINUM AND SUELEGHE IN PREPARATION FOR COATING OR PAINTING |
| CN1038322A (en) * | 1988-06-04 | 1989-12-27 | 浙江省科技咨询中心预应力大跨建筑技术服务部 | Multi-story long-span double-arch-centering structure system |
| CN102312262A (en) * | 2011-08-22 | 2012-01-11 | 吴江市精工铝字制造厂 | Hard anodization method of mixed acid of copper aluminium alloy |
| CN103215630A (en) * | 2013-04-23 | 2013-07-24 | 沈阳理工大学 | Method for sealing aluminum alloy anode oxide film pore by adopting organic-inorganic composite silica sol |
| CN104233428A (en) * | 2014-09-26 | 2014-12-24 | 湖南大学 | Method for improving alkaline resistance of anode oxide film on surface of aluminum or aluminum alloy material |
Non-Patent Citations (3)
| Title |
|---|
| 李森: "6061铝合金阳极氧化金黄色膜层研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
| 王强等: "磷酸三乙酯对铝合金阳极氧化膜溶胶凝胶封闭性能的影响", 《航空材料学报》 * |
| 王玲等: "《高级电镀工技术与实例》", 31 October 2005, 江苏科学技术出版社 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107641827A (en) * | 2017-09-27 | 2018-01-30 | 辽宁忠旺集团有限公司 | A kind of aluminium alloy anode oxide technique |
| CN108018590A (en) * | 2018-03-19 | 2018-05-11 | 福建奋安铝业有限公司 | A kind of aluminium shape surface treatment process |
| CN108018590B (en) * | 2018-03-19 | 2019-06-25 | 福建奋安铝业有限公司 | A kind of aluminium shape surface treatment process |
| CN109576756A (en) * | 2019-01-21 | 2019-04-05 | 景德镇市宏亿电子科技有限公司 | A kind of aluminium base board machining process |
| CN110079848A (en) * | 2019-04-28 | 2019-08-02 | 安徽华淮新材料有限公司 | Aluminum alloy chemically coarse sand surface treatment method |
| CN111185147A (en) * | 2020-03-21 | 2020-05-22 | 王永芝 | Through-hole type alumina catalyst carrier and preparation method thereof |
| CN111185147B (en) * | 2020-03-21 | 2023-04-25 | 山东嘉虹化工有限公司 | Preparation method of catalyst carrier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107151810B (en) | 2019-01-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107151810B (en) | Aluminium alloy extrusions and its manufacturing method | |
| Ferreira et al. | Silanes and rare earth salts as chromate replacers for pre-treatments on galvanised steel | |
| CN106400085B (en) | A kind of aluminium and aluminium alloy anode oxide film post-processing hole sealing agent and post-processing approach | |
| CN105063721B (en) | The method that magnesium alloy anodic oxidation electrolyte and the electrolyte prepare anode oxide film | |
| CN101445949A (en) | Micro-arc oxidation electrolyte and micro-arc oxidation method | |
| CN107955961B (en) | A kind of preparation method of Mg alloy surface conduction corrosion-inhibiting coating | |
| CN108517549B (en) | A kind of preparation method of aluminium alloy compound anode oxide film | |
| CN1970836A (en) | Environment-friendly surface treatment method for aluminium profile before spray coating | |
| CN105463549B (en) | A kind of anodization process for improving aluminium and aluminium alloy barrier propterty | |
| Yu et al. | Studies on the corrosion performance of an effective and novel sealing anodic oxide coating | |
| CN101748464B (en) | Electrolyte and zirconium or zirconium alloy surface micro-arc oxidation method | |
| Barton et al. | The effect of electrolyte on the anodized finish of a magnesium alloy | |
| CN107354497A (en) | A kind of graphenic surface processing improves the corrosion proof method of copper magnesium alloy | |
| CN105441743A (en) | Aluminum-based amorphous alloy composite material and preparation method thereof | |
| Huang et al. | Improved corrosion resistance of PEO-coated 7085Al alloy via a novel organic and inorganic sealing-treatment combination | |
| Wang et al. | Study on anodic oxidation of 2099 aluminum lithium alloy and sealing treatment in environmental friendly solutions | |
| CN108707933A (en) | The galvanizing flux and preparation method thereof of super-hydrophobic zinc-plated carbon steel | |
| CN106835234B (en) | For the electrolyte of differential arc oxidation, differential arc oxidation method and aluminum or aluminum alloy material | |
| KR100696000B1 (en) | A composite of anodizing electrolyte for alloyedaluminum | |
| Guixiang et al. | Effect of Benzotriazole on Corrosion Resistance of Al2O3/Cerium Oxide Composite Films on the Al Surface | |
| CN109161951A (en) | A kind of magnesium alloy differential arc oxidation electrolyte and its application | |
| CN108754580A (en) | The surface modified stainless steel of in-situ deposition nanometer pt a kind of and its application | |
| CN108796583A (en) | A kind of preparation method of the super-hydrophobic passivating film of Pure Iron Surface corrosion resistance | |
| CN101435081B (en) | No-voltage chemical membrane preparing and low voltage electrochemical membrane preparing combined process for magnesium alloy surface | |
| US2469015A (en) | Method and compositions for producing surface conversion coatings on zinc |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 215615 New Energy Industrial Park of Zhangjiagang City, Suzhou City, Jiangsu Province (Jincun Road, Tangqiao Town) Zhangjiagang Lejia New Materials Co., Ltd. Patentee after: Zhangjiagang Le Jiaxin material Limited by Share Ltd Address before: 215615 Zhangjiagang New Energy Industrial Park, Suzhou City, Jiangsu Province (Jincun Road, Tangqiao Town) Patentee before: Zhangjiagang Lejia New Energy Technology Co., Ltd. |