CN105908239A - Processing method capable of improving surface strength of aluminum and aluminum alloy - Google Patents
Processing method capable of improving surface strength of aluminum and aluminum alloy Download PDFInfo
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- CN105908239A CN105908239A CN201610376040.5A CN201610376040A CN105908239A CN 105908239 A CN105908239 A CN 105908239A CN 201610376040 A CN201610376040 A CN 201610376040A CN 105908239 A CN105908239 A CN 105908239A
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- 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
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/12—Light metals
- C23G1/125—Light metals aluminium
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- 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
- C25D11/16—Pretreatment, e.g. desmutting
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- Chemical Kinetics & Catalysis (AREA)
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- Metallurgy (AREA)
- Organic Chemistry (AREA)
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- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses a processing method capable of improving the surface strength of aluminum and aluminum alloy. The processing method includes the following steps of (1) primary washing, (2) ungrease treatment, (3) secondary washing, (4) primary acid pickling, (5) secondary acid pickling, (6) alkali washing, (7) anodic oxidation, (8) third-time washing and (9) drying and heat preservation. All the steps of the processing method are scientific, reasonable and ingenious in process. The structure of surface oxidation films of an aluminum or aluminum alloy material is effectively improved, the strong acid resistance, strong base resistance and organic solvent corrosion resistance are improved obviously, and the surface strength is improved by 20%-25%. Furthermore, a special cellular structure is achieved, the deep processing technique like dyeing is facilitated, and the use value is good.
Description
Technical field
The invention belongs to field of metal surface treatment technology, be specifically related to a kind of processing method improving aluminum and aluminum alloy surface intensity.
Background technology
Aluminum and aluminium alloy have that density is little, specific strength is high, corrosion resistance and a series of advantage such as good moldability, low cost, suffer from being widely applied in fields such as Aero-Space, boats and ships, building, bridge, electric power, automobile, nuclear industry and weapon industries.
Aluminum and aluminium alloy surface treatment method have a lot, and current comparative maturity, Application comparison have Physical, chemical method, physical-chemical process and synthetic method widely.Existing frequently-used method is anodizing, forms conversion film by electrochemical method in aluminum alloy surface, although this method can improve the corrosion resisting property of aluminium alloy, but Conversion Coatings on Aluminum Alloys layer anti-wear performance is not very significantly improved；And this layer of oxide-film is vulnerable to the corrosion of strong acid and highly basic, aluminum and aluminium alloy are easily generated intercrystalline corrosion simultaneously, and case hardness is on the low side, the most wear-resisting；Additionally, the existing anode oxidative treatment method time is longer, energy consumption is bigger.Therefore, aluminum and the uniformity of Process on Aluminum Alloy Oxidation Film, hardness, wear-resisting, decay resistance, and the problem that the technical process of preparation is always industry personnel's research how are improved.
Summary of the invention
In order to solve the problems referred to above, the invention provides a kind of processing method improving aluminum and aluminum alloy surface intensity.
The present invention is achieved through the following technical solutions:
A kind of processing method improving aluminum and aluminum alloy surface intensity, comprises the steps:
(1) once washing: with clear water, aluminum or aluminum alloy material is washed, carry out remove impurity dust removal process；
(2) ungrease treatment: put in degreaser by aluminum or aluminum alloy material, heating keeps the temperature of degreaser to be 38 ~ 40 DEG C, completes ungrease treatment after 20 ~ 25min；Described degreaser is made up of the material of following weight portion: 5 parts amino three sodium acetates, 4 parts of sodium silicate, 3 parts of alkylphenol polyoxyethylene, 15 parts of sodium tripolyphosphates, 3 parts of OPEOs, 300 parts of water；
(3) secondary washing: with clear water, the aluminum or aluminum alloy material after ungrease treatment is washed, dry standby；
(4) pickling: the aluminum or aluminum alloy material after step (3) being processed is put in an Acidwash solution, heating keeps solution temperature to be 40 ~ 42 DEG C, and after processing 3 ~ 5min, taking-up deionized water rinsing dries standby；A described Acidwash solution is made up of the material of following weight portion: 10 parts of hydrochloric acid, 4 parts of hydrogen peroxide, 0.2 part of dodecyl sodium sulfate, 3 parts of potassium stearates, 0.5 part of sodium hexameta phosphate, 0.3 part of kieselguhr, 150 parts of water；
(5) white picking: the aluminum or aluminum alloy material after step (4) being processed is put in white picking solution, heating keeps solution temperature to be 45 ~ 46 DEG C, and after processing 3 ~ 5min, taking-up deionized water rinsing dries standby；Described white picking solution is made up of the material of following weight portion: 12 parts of sulphuric acid, 5 parts of nitric acid, 0.3 part of dodecyl sodium sulfate, 4 parts of potassium stearates, 0.6 part of sodium hexameta phosphate, 0.2 part of kieselguhr, 150 parts of water；
(6) alkali cleaning: the aluminum or aluminum alloy material after step (5) being processed is put in alkali liquor, heating keeps alkali liquid temperature to be 30 ~ 35 DEG C, and after 40 ~ 60s, taking-up deionized water rinsing dries standby；Described alkali liquor be mass fraction be the sodium hydrate aqueous solution of 6 ~ 7%；
(7) anodic oxidation: the aluminum or aluminum alloy material after step (6) being processed is put in electrolyte, heating keeps aqueous temperature to be 33 ~ 36 DEG C, and controlling electric current density is 0.6 ~ 0.8 A/dm2, it is aided with the ultrasound wave that frequency is 35KHz simultaneously and processes, be jointly processed by 10 ~ 15min；Described electrolyte is made up of the material of following weight portion: 15 parts of sulphuric acid, 5 parts of oxalic acid, 3 parts of aluminum sulfate, 1 part of active carbon nanoparticles, 0.8 part of nano barium phthalate, 0.5 part of sodium hexameta phosphate, 120 parts of water；
(8) three washings: the aluminum or aluminum alloy material after processing step (7) with clear water washs, and removes the electrolyte on its surface；
(9) being dried insulation: temperature controlled compartment put into by the aluminum or aluminum alloy material after step (8) being processed, heating keeps indoor temperature to be 150 ~ 180 DEG C, takes out, naturally cool to room temperature and get product after insulation 5 ~ 8min.Aluminum or aluminum alloy material after processing is carried out isothermal holding, is conducive to promoting the stability of oxide-film.
Further, the diatomite particle size described in step (4), step (5) is 600 ~ 800 mesh.
Further, the particle diameter of the active carbon nanoparticles described in step (7) is 45 ~ 55nm, and the particle diameter of nano barium phthalate is 65 ~ 75nm.
There is advantages that
(1) this method is when carrying out pickling to aluminum or aluminum alloy material, two kinds of different Acidwash solutions are prepared, carry out twice pickling, compare a common pickling processes mode, it eliminates oxide-film, removes the better of thicker impurity, and the impurity after the adsorbable process of kieselguhr added in Acidwash solution improves speed and the effect of process further, material surface even tissue after final process, clean light, improve convenience and the effect of later processing operation.
(2) when anodic oxidation operates, the active carbon nanoparticles added in electrolyte and nano barium phthalate, under the effect of sulphuric acid and oxalic acid, the most crosslinked together with the aluminium sesquioxide oxide-film generated, improve the uniformity of film, compactness, enhance again its hardness, wear-resisting and decay resistance simultaneously, the ultrasound wave applied can not only accelerate the response speed of entirety, compare common mode shorten 40 ~ 60% prepare duration, the uniformity processing film can be improved again, further enhancing the quality of process.
(3) processing method of each step of the present invention is scientific and reasonable, technique is ingenious, effectively improve the structure of aluminum or aluminum alloy material surface oxide-film, its resistance to strong acid, highly basic and the ability of organic solvent corrosion are obviously improved it, the intensity on its surface improves 20 ~ 25%, and there is special microcellular structure, it is beneficial to the carrying out of dyeing even depth processing technique, has good use value.
Detailed description of the invention
A kind of processing method improving aluminum and aluminum alloy surface intensity, comprises the steps:
(1) once washing: with clear water, aluminum or aluminum alloy material is washed, carry out remove impurity dust removal process；
(2) ungrease treatment: put in degreaser by aluminum or aluminum alloy material, heating keeps the temperature of degreaser to be 38 ~ 40 DEG C, completes ungrease treatment after 20 ~ 25min；Described degreaser is made up of the material of following weight portion: 5 parts amino three sodium acetates, 4 parts of sodium silicate, 3 parts of alkylphenol polyoxyethylene, 15 parts of sodium tripolyphosphates, 3 parts of OPEOs, 300 parts of water；
(3) secondary washing: with clear water, the aluminum or aluminum alloy material after ungrease treatment is washed, dry standby；
(4) pickling: the aluminum or aluminum alloy material after step (3) being processed is put in an Acidwash solution, heating keeps solution temperature to be 40 ~ 42 DEG C, and after processing 3 ~ 5min, taking-up deionized water rinsing dries standby；A described Acidwash solution is made up of the material of following weight portion: 10 parts of hydrochloric acid, 4 parts of hydrogen peroxide, 0.2 part of dodecyl sodium sulfate, 3 parts of potassium stearates, 0.5 part of sodium hexameta phosphate, 0.3 part of kieselguhr, 150 parts of water；
(5) white picking: the aluminum or aluminum alloy material after step (4) being processed is put in white picking solution, heating keeps solution temperature to be 45 ~ 46 DEG C, and after processing 3 ~ 5min, taking-up deionized water rinsing dries standby；Described white picking solution is made up of the material of following weight portion: 12 parts of sulphuric acid, 5 parts of nitric acid, 0.3 part of dodecyl sodium sulfate, 4 parts of potassium stearates, 0.6 part of sodium hexameta phosphate, 0.2 part of kieselguhr, 150 parts of water；
(6) alkali cleaning: the aluminum or aluminum alloy material after step (5) being processed is put in alkali liquor, heating keeps alkali liquid temperature to be 30 ~ 35 DEG C, and after 40 ~ 60s, taking-up deionized water rinsing dries standby；Described alkali liquor be mass fraction be the sodium hydrate aqueous solution of 6 ~ 7%；
(7) anodic oxidation: the aluminum or aluminum alloy material after step (6) being processed is put in electrolyte, heating keeps aqueous temperature to be 33 ~ 36 DEG C, and controlling electric current density is 0.6 ~ 0.8 A/dm2, it is aided with the ultrasound wave that frequency is 35KHz simultaneously and processes, be jointly processed by 10 ~ 15min；Described electrolyte is made up of the material of following weight portion: 15 parts of sulphuric acid, 5 parts of oxalic acid, 3 parts of aluminum sulfate, 1 part of active carbon nanoparticles, 0.8 part of nano barium phthalate, 0.5 part of sodium hexameta phosphate, 120 parts of water；
(8) three washings: the aluminum or aluminum alloy material after processing step (7) with clear water washs, and removes the electrolyte on its surface；
(9) being dried insulation: temperature controlled compartment put into by the aluminum or aluminum alloy material after step (8) being processed, heating keeps indoor temperature to be 150 ~ 180 DEG C, takes out, naturally cool to room temperature and get product after insulation 5 ~ 8min.
Further, the diatomite particle size described in step (4), step (5) is 600 ~ 800 mesh.
Further, the particle diameter of the active carbon nanoparticles described in step (7) is 45 ~ 55nm, and the particle diameter of nano barium phthalate is 65 ~ 75nm.
Claims (3)
1. the processing method improving aluminum and aluminum alloy surface intensity, it is characterised in that comprise the steps:
(1) once washing: with clear water, aluminum or aluminum alloy material is washed, carry out remove impurity dust removal process；
(2) ungrease treatment: put in degreaser by aluminum or aluminum alloy material, heating keeps the temperature of degreaser to be 38 ~ 40 DEG C, completes ungrease treatment after 20 ~ 25min；Described degreaser is made up of the material of following weight portion: 5 parts amino three sodium acetates, 4 parts of sodium silicate, 3 parts of alkylphenol polyoxyethylene, 15 parts of sodium tripolyphosphates, 3 parts of OPEOs, 300 parts of water；
(3) secondary washing: with clear water, the aluminum or aluminum alloy material after ungrease treatment is washed, dry standby；
(4) pickling: the aluminum or aluminum alloy material after step (3) being processed is put in an Acidwash solution, heating keeps solution temperature to be 40 ~ 42 DEG C, and after processing 3 ~ 5min, taking-up deionized water rinsing dries standby；A described Acidwash solution is made up of the material of following weight portion: 10 parts of hydrochloric acid, 4 parts of hydrogen peroxide, 0.2 part of dodecyl sodium sulfate, 3 parts of potassium stearates, 0.5 part of sodium hexameta phosphate, 0.3 part of kieselguhr, 150 parts of water；
(5) white picking: the aluminum or aluminum alloy material after step (4) being processed is put in white picking solution, heating keeps solution temperature to be 45 ~ 46 DEG C, and after processing 3 ~ 5min, taking-up deionized water rinsing dries standby；Described white picking solution is made up of the material of following weight portion: 12 parts of sulphuric acid, 5 parts of nitric acid, 0.3 part of dodecyl sodium sulfate, 4 parts of potassium stearates, 0.6 part of sodium hexameta phosphate, 0.2 part of kieselguhr, 150 parts of water；
(6) alkali cleaning: the aluminum or aluminum alloy material after step (5) being processed is put in alkali liquor, heating keeps alkali liquid temperature to be 30 ~ 35 DEG C, and after 40 ~ 60s, taking-up deionized water rinsing dries standby；Described alkali liquor be mass fraction be the sodium hydrate aqueous solution of 6 ~ 7%；
(7) anodic oxidation: the aluminum or aluminum alloy material after step (6) being processed is put in electrolyte, heating keeps aqueous temperature to be 33 ~ 36 DEG C, and controlling electric current density is 0.6 ~ 0.8 A/dm2, it is aided with the ultrasound wave that frequency is 35KHz simultaneously and processes, be jointly processed by 10 ~ 15min；Described electrolyte is made up of the material of following weight portion: 15 parts of sulphuric acid, 5 parts of oxalic acid, 3 parts of aluminum sulfate, 1 part of active carbon nanoparticles, 0.8 part of nano barium phthalate, 0.5 part of sodium hexameta phosphate, 120 parts of water；
(8) three washings: the aluminum or aluminum alloy material after processing step (7) with clear water washs, and removes the electrolyte on its surface；
(9) being dried insulation: temperature controlled compartment put into by the aluminum or aluminum alloy material after step (8) being processed, heating keeps indoor temperature to be 150 ~ 180 DEG C, takes out, naturally cool to room temperature and get product after insulation 5 ~ 8min.
A kind of processing method improving aluminum and aluminum alloy surface intensity the most according to claim 1, it is characterised in that the diatomite particle size described in step (4), step (5) is 600 ~ 800 mesh.
A kind of processing method improving aluminum and aluminum alloy surface intensity the most according to claim 1, it is characterised in that the particle diameter of the active carbon nanoparticles described in step (7) is 45 ~ 55nm, the particle diameter of nano barium phthalate is 65 ~ 75nm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610376040.5A CN105908239A (en) | 2016-05-31 | 2016-05-31 | Processing method capable of improving surface strength of aluminum and aluminum alloy |
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| CN201610376040.5A CN105908239A (en) | 2016-05-31 | 2016-05-31 | Processing method capable of improving surface strength of aluminum and aluminum alloy |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106521528A (en) * | 2016-11-25 | 2017-03-22 | 遵义恒佳铝业有限公司 | Surface treatment process for aluminum rods |
| CN107313096A (en) * | 2017-08-15 | 2017-11-03 | 肥西县通力机械有限公司 | A kind of drawing mould process of surface treatment |
| CN108034980A (en) * | 2017-11-27 | 2018-05-15 | 福建奋安铝业有限公司 | Aluminium shape surface coating apparatus, the method with the device to aluminium shape surface plated film |
| CN108048891A (en) * | 2017-11-15 | 2018-05-18 | 重庆嘉萌鸿业科技有限公司 | A kind of aluminium alloy castings surface treatment method |
| CN109706501A (en) * | 2018-12-18 | 2019-05-03 | 广东伟元表面材料科技有限公司 | Deashing agent and its preparation method and application after sealing of hole |
| CN111074277A (en) * | 2019-09-26 | 2020-04-28 | 姚云秋 | Metal regulating liquid, composite membrane liquid and metal pot surface treatment process |
| CN112760690A (en) * | 2020-12-19 | 2021-05-07 | 河南中车重型装备有限公司 | Surface treatment process before coloring of subway aluminum alloy section |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1170443A (en) * | 1994-10-21 | 1998-01-14 | 日本油漆株式会社 | Aqueous acid cleaning solution for aluminum metal and method for cleaning the metal |
| CN103194777A (en) * | 2013-03-27 | 2013-07-10 | 成都阳光铝制品有限公司 | Process for anodizing aluminum-alloy substrate |
| CN103668386A (en) * | 2013-12-17 | 2014-03-26 | 广西理工职业技术学院 | Aluminum and aluminum alloy surface treatment method |
| CN103774158A (en) * | 2013-11-16 | 2014-05-07 | 大连创达技术交易市场有限公司 | Rust remover |
| CN105088309A (en) * | 2015-08-28 | 2015-11-25 | 华南理工大学 | Efficient energy-saving anodic oxidation treatment method for die-cast aluminum alloy |
| CN105483791A (en) * | 2015-11-24 | 2016-04-13 | 安徽鑫发铝业有限公司 | Surface machining method of industrial aluminum alloy sectional material |
-
2016
- 2016-05-31 CN CN201610376040.5A patent/CN105908239A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1170443A (en) * | 1994-10-21 | 1998-01-14 | 日本油漆株式会社 | Aqueous acid cleaning solution for aluminum metal and method for cleaning the metal |
| CN103194777A (en) * | 2013-03-27 | 2013-07-10 | 成都阳光铝制品有限公司 | Process for anodizing aluminum-alloy substrate |
| CN103774158A (en) * | 2013-11-16 | 2014-05-07 | 大连创达技术交易市场有限公司 | Rust remover |
| CN103668386A (en) * | 2013-12-17 | 2014-03-26 | 广西理工职业技术学院 | Aluminum and aluminum alloy surface treatment method |
| CN105088309A (en) * | 2015-08-28 | 2015-11-25 | 华南理工大学 | Efficient energy-saving anodic oxidation treatment method for die-cast aluminum alloy |
| CN105483791A (en) * | 2015-11-24 | 2016-04-13 | 安徽鑫发铝业有限公司 | Surface machining method of industrial aluminum alloy sectional material |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106521528A (en) * | 2016-11-25 | 2017-03-22 | 遵义恒佳铝业有限公司 | Surface treatment process for aluminum rods |
| CN107313096A (en) * | 2017-08-15 | 2017-11-03 | 肥西县通力机械有限公司 | A kind of drawing mould process of surface treatment |
| CN108048891A (en) * | 2017-11-15 | 2018-05-18 | 重庆嘉萌鸿业科技有限公司 | A kind of aluminium alloy castings surface treatment method |
| CN108034980A (en) * | 2017-11-27 | 2018-05-15 | 福建奋安铝业有限公司 | Aluminium shape surface coating apparatus, the method with the device to aluminium shape surface plated film |
| CN108034980B (en) * | 2017-11-27 | 2019-04-26 | 福建奋安铝业有限公司 | Aluminium shape surface coating apparatus, with the device to the method for aluminium shape surface plated film |
| CN109706501A (en) * | 2018-12-18 | 2019-05-03 | 广东伟元表面材料科技有限公司 | Deashing agent and its preparation method and application after sealing of hole |
| CN111074277A (en) * | 2019-09-26 | 2020-04-28 | 姚云秋 | Metal regulating liquid, composite membrane liquid and metal pot surface treatment process |
| CN112760690A (en) * | 2020-12-19 | 2021-05-07 | 河南中车重型装备有限公司 | Surface treatment process before coloring of subway aluminum alloy section |
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Application publication date: 20160831 |