CN107723774A - Aluminium section bar founding aluminium bar oxidation technology - Google Patents
Aluminium section bar founding aluminium bar oxidation technology Download PDFInfo
- Publication number
- CN107723774A CN107723774A CN201710958165.3A CN201710958165A CN107723774A CN 107723774 A CN107723774 A CN 107723774A CN 201710958165 A CN201710958165 A CN 201710958165A CN 107723774 A CN107723774 A CN 107723774A
- Authority
- CN
- China
- Prior art keywords
- aluminium
- bar
- founding
- section bar
- aluminium bar
- 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.)
- Withdrawn
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
- C25D11/16—Pretreatment, e.g. desmutting
-
- 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
- C25D11/026—Anodisation with spark discharge
-
- 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
-
- 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
- C25D11/24—Chemical after-treatment
- C25D11/243—Chemical after-treatment using organic dyestuffs
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- ing And Chemical Polishing (AREA)
Abstract
The invention discloses a kind of aluminium section bar founding aluminium bar oxidation technology, including mechanical pretreatment, chemical pre-treatment, washing, alkaline etching, oxidation, surface treatment, coloring process.The founding aluminium bar weatherability that the oxidation technology that the present invention uses obtains is strong, does not occur skin effect phenomenon in use, and the performance of aluminium section bar is improved, and energy-conserving and environment-protective, favorable anti-corrosion effect, can ensure that founding aluminium bar has preferable antioxygenic property.
Description
Technical field
The invention belongs to aluminium section bar processing technique field, refers in particular to a kind of oxidation technology, in particular to a kind of aluminium section bar
With founding aluminium bar oxidation technology.
Background technology
Aluminium alloy is most widely used a kind of non-ferrous metal structural material in industry, in Aeronautics and Astronautics, automobile, machinery
Widely applied in manufacture, ship and chemical industry.The rapid development of industrial economy, to the demand day of Welded structural member
Benefit increases, and the Research on Weldability enabled aluminum alloy to is also goed deep into therewith.Aluminium alloy is to apply most alloys at present.Aluminium alloy density
It is low, but intensity is higher, and near or above high-quality steel, plasticity is good, can be processed into various section bars, has excellent electric conductivity, leads
Hot and corrosion stability, is industrially widely used, and usage amount is only second to steel.Some aluminium alloys can use heat treatment to obtain well
Mechanical performance, physical property and corrosion resistance.Duralumin, hard alumin ium alloy belongs to AI-Cu-Mg systems, typically contains a small amount of Mn, can it is hot at
Reason strengthens and is characterized in that hardness is big, but plasticity is poor.Superduralumin belongs to Al-Cu-Mg-Zn systems, heat-treatable strengthened, is room temperature
Lower intensity highest aluminium alloy, but corrosion-resistant, hot mastication are fast.Forging aluminium alloy is mainly that Al-Zn-Mg-Si systems close
Gold, although addition element species is more, content is few, thus has excellent thermoplasticity, suitable forging, therefore also known as forged aluminium is closed
Gold.
In the prior art, aluminium alloy smelting, castability are relatively low, aluminium section bar with founding aluminium bar after oxidation, it is anti-oxidant
Effect is poor, particularly under the environment such as high temperature, soda acid, so as to have impact on the service life of founding aluminium bar.
The content of the invention
The invention aims to overcome the deficiencies in the prior art, devises a kind of aluminium section bar founding aluminium bar oxidation work
Skill.
The present invention is to be achieved through the following technical solutions：
A kind of aluminium section bar founding aluminium bar oxidation technology, including following process：
Process a, mechanical pretreatment：The mechanical pretreatment includes mechanical sandblasting and mechanical polishing, and the mechanical sandblasting is to obtain
The founding aluminium bar of sand face section bar is obtained, is completed by aluminium section bar sand-blasting machine, the mechanical polishing is carried out on aluminium profile polishing machine；
Process b, chemical pre-treatment：The chemical pre-treatment includes degreasing process, acid sand face technique, alkaline sand face technique, change
Optical polishing technique；
Process c, washing：By the founding aluminium bar of the aluminium section bar through chemical pre-treatment, the surface of founding aluminium bar is cleaned with water；
Process d, alkaline etching：Slowly lower groove will be tilted by the founding aluminium bar of washing step, groove basicity is PH<10, after the time arrives,
Sling immediately, in order to avoid cause alkali lye to be attached to because temperature is too high on founding aluminium bar, it is next difficult to neutral zone, carried out after alkaline etching process
Washing, neutralize, water washing operations；
Process e, oxidation：After alkaline etching process, founding aluminium bar is put into the silicate solutions prepared with distilled water, started
Mao power source device, voltage output is kept, obtains oxide-film；
Process f, surface treatment：Founding aluminium bar through peroxidating is sequentially placed into acetone, ethanol, deionized water, then uses nitrogen
Air-blowing is done, and is put into 65 DEG C of waters bath with thermostatic control in chemical pretreatment solution and is impregnated, dries, obtaining the founding aluminium bar with protective layer.
A kind of aluminium section bar founding aluminium bar oxidation technology also includes coloring process, and the coloring process is chemical stain, changes
It is that the founding aluminium bar through peroxidating is immersed in the solution containing dyestuff to learn coloring, because the absorption of oxide-film porous layer is made
With therefore dye molecule develops the color into hole.
The degreasing process be at normal temperatures, by aluminium section bar with founding aluminium bar be placed in mass fraction be 80% phosphoric acid it is molten
8-12min is soaked in liquid, aluminium section bar is then inserted into 1mol/L Na with founding aluminium bar again2CO38-12min is soaked in solution.
In the acid sand face technique, acid sand face is also easy to produce a large amount of white depositions, and tank liquor needs circulating filtration,
Need to carry out the alkaline etching processing of short time after acid sand face processing, to remove fluoaluminate film of the absorption in aluminium surface.
The surface with chemical polishing technology uses H2SO4-H3PO4For two acid polishings of main body.
The acid sand face technique uses 60~100g/L NH4HF, 15~20g/L stabilizer, 10g/L accelerator
For raw material.
The thickness of oxide-film is 3-6 μm in the process e.
The time of the process d is 12-20min, and the time of the process e is 8-25min.
Surface defect and extruding striped can be completely eliminated in mechanical sandblasting, obtain dumb light table more uniform than chemical etching granulation
Face, in addition, mechanical sandblasting also has greater advantage on production cost and environmental protection, the mechanical polishing is in aluminium profile polishing machine
Upper progress, aluminium section bar is kept flat regularly on the table, press and rub with surface by the polishing wheel of high speed rotation,
Make surface smooth, until reaching mirror effect.The purpose of the alkaline sand face technique is to remove aluminium surface natural oxide film,
Surface extruding line, scuffing and other defects is mitigated or eliminated, while can also thoroughly remove surface and oil contaminant.Alkaline etching quality directly affects
Aluminium section bar presentation quality, therefore alkaline etching is process particularly important before aoxidizing.
Compared with prior art, the beneficial effects of the invention are as follows：The founding aluminium that the oxidation technology that the present invention uses obtains
Rod weatherability is strong, does not occur skin effect phenomenon in use, and the performance of aluminium section bar is improved, and energy-conserving and environment-protective, prevents
Rotten effect is good, can ensure that founding aluminium bar has preferable antioxygenic property.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
A kind of aluminium section bar founding aluminium bar oxidation technology, including following process：
Process a, mechanical pretreatment：The mechanical pretreatment includes mechanical sandblasting and mechanical polishing, and the mechanical sandblasting is to obtain
The founding aluminium bar of sand face section bar is obtained, is completed by aluminium section bar sand-blasting machine, the mechanical polishing is carried out on aluminium profile polishing machine；
Process b, chemical pre-treatment：The chemical pre-treatment includes degreasing process, acid sand face technique, alkaline sand face technique, change
Optical polishing technique；
Process c, washing：By the founding aluminium bar of the aluminium section bar through chemical pre-treatment, the surface of founding aluminium bar is cleaned with water；
Process d, alkaline etching：Slowly lower groove will be tilted by the founding aluminium bar of washing step, groove basicity is PH<10, after the time arrives,
Sling immediately, in order to avoid cause alkali lye to be attached to because temperature is too high on founding aluminium bar, it is next difficult to neutral zone, carried out after alkaline etching process
Washing, neutralize, water washing operations；
Process e, oxidation：After alkaline etching process, founding aluminium bar is put into the silicate solutions prepared with distilled water, started
Mao power source device, voltage output is kept, obtains oxide-film；
Process f, surface treatment：Founding aluminium bar through peroxidating is sequentially placed into acetone, ethanol, deionized water, then uses nitrogen
Air-blowing is done, and is put into 65 DEG C of waters bath with thermostatic control in chemical pretreatment solution and is impregnated, dries, obtaining the founding aluminium bar with protective layer.
A kind of aluminium section bar founding aluminium bar oxidation technology also includes coloring process, and the coloring process is chemical stain, changes
It is that the founding aluminium bar through peroxidating is immersed in the solution containing dyestuff to learn coloring, because the absorption of oxide-film porous layer is made
With therefore dye molecule develops the color into hole.
The degreasing process be at normal temperatures, by aluminium section bar with founding aluminium bar be placed in mass fraction be 80% phosphoric acid it is molten
8-12min is soaked in liquid, aluminium section bar is then inserted into 1mol/L Na with founding aluminium bar again2CO38-12min is soaked in solution.
In the acid sand face technique, acid sand face is also easy to produce a large amount of white depositions, and tank liquor needs circulating filtration,
Need to carry out the alkaline etching processing of short time after acid sand face processing, to remove fluoaluminate film of the absorption in aluminium surface.
The surface with chemical polishing technology uses H2SO4-H3PO4For two acid polishings of main body.
The acid sand face technique uses 60~100g/L NH4HF, 15~20g/L stabilizer, 10g/L accelerator
For raw material.
The thickness of oxide-film is 3-6 μm in the process e.
The time of the process d is 12-20min, and the time of the process e is 8-25min.
Surface defect and extruding striped can be completely eliminated in mechanical sandblasting, obtain dumb light table more uniform than chemical etching granulation
Face, in addition, mechanical sandblasting also has greater advantage on production cost and environmental protection, the mechanical polishing is in aluminium profile polishing machine
Upper progress, aluminium section bar is kept flat regularly on the table, press and rub with surface by the polishing wheel of high speed rotation,
Make surface smooth, until reaching mirror effect.The purpose of the alkaline sand face technique is to remove aluminium surface natural oxide film,
Surface extruding line, scuffing and other defects is mitigated or eliminated, while can also thoroughly remove surface and oil contaminant.Alkaline etching quality directly affects
Aluminium section bar presentation quality, therefore alkaline etching is process particularly important before aoxidizing.
The founding aluminium bar weatherability that the oxidation technology that the present invention uses obtains is strong, does not occur peeling in use and shows
As the performance of aluminium section bar is improved, and energy-conserving and environment-protective, favorable anti-corrosion effect, and it is preferably anti-can to ensure that founding aluminium bar has
Oxidation susceptibility.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (8)
1. a kind of aluminium section bar founding aluminium bar oxidation technology, it is characterised in that including following process：
Process a, mechanical pretreatment：The mechanical pretreatment includes mechanical sandblasting and mechanical polishing, and the mechanical sandblasting is to obtain
The founding aluminium bar of sand face section bar is obtained, is completed by aluminium section bar sand-blasting machine, the mechanical polishing is carried out on aluminium profile polishing machine；
Process b, chemical pre-treatment：The chemical pre-treatment includes degreasing process, acid sand face technique, alkaline sand face technique, change
Optical polishing technique；
Process c, washing：By the founding aluminium bar of the aluminium section bar through chemical pre-treatment, the surface of founding aluminium bar is cleaned with water；
Process d, alkaline etching：Slowly lower groove will be tilted by the founding aluminium bar of washing step, groove basicity is PH<10, after the time arrives,
Sling immediately, in order to avoid cause alkali lye to be attached to because temperature is too high on founding aluminium bar, it is next difficult to neutral zone, carried out after alkaline etching process
Washing, neutralize, water washing operations；
Process e, oxidation：After alkaline etching process, founding aluminium bar is put into the silicate solutions prepared with distilled water, started
Mao power source device, voltage output is kept, obtains oxide-film；
Process f, surface treatment：Founding aluminium bar through peroxidating is sequentially placed into acetone, ethanol, deionized water, then uses nitrogen
Air-blowing is done, and is put into 65 DEG C of waters bath with thermostatic control in chemical pretreatment solution and is impregnated, dries, obtaining the founding aluminium bar with protective layer.
2. aluminium section bar according to claim 1 founding aluminium bar oxidation technology, it is characterised in that：Also include coloring process,
The coloring process is chemical stain, and chemical stain is that the founding aluminium bar through peroxidating is immersed in the solution containing dyestuff,
Due to the suction-operated of oxide-film porous layer, therefore dye molecule develops the color into hole.
3. aluminium section bar according to claim 1 founding aluminium bar oxidation technology, it is characterised in that：The degreasing process be
Under normal temperature, aluminium section bar is placed in the phosphoric acid solution that mass fraction is 80% with founding aluminium bar and soaks 8-12min, then again will
Aluminium section bar inserts 1mol/L Na with founding aluminium bar2CO38-12min is soaked in solution.
4. aluminium section bar according to claim 1 founding aluminium bar oxidation technology, it is characterised in that：In the acid sand face work
In skill, acid sand face is also easy to produce a large amount of white depositions, and tank liquor needs circulating filtration, needs to carry out after acid sand face processing short
The alkaline etching processing of time, to remove fluoaluminate film of the absorption in aluminium surface.
5. aluminium section bar according to claim 1 founding aluminium bar oxidation technology, it is characterised in that：The surface with chemical polishing technology
Using H2SO4-H3PO4For two acid polishings of main body.
6. aluminium section bar according to claim 1 founding aluminium bar oxidation technology, it is characterised in that：The acid sand face technique
Using 60~100g/L NH4HF, 15~20g/L stabilizer, 10g/L accelerator are raw material.
7. aluminium section bar according to claim 1 founding aluminium bar oxidation technology, it is characterised in that：Aoxidized in the process e
The thickness of film is 3-6 μm.
8. aluminium section bar according to claim 1 founding aluminium bar oxidation technology, it is characterised in that：The time of the process d
For 12-20min, the time of the process e is 8-25min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710958165.3A CN107723774A (en) | 2017-10-16 | 2017-10-16 | Aluminium section bar founding aluminium bar oxidation technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710958165.3A CN107723774A (en) | 2017-10-16 | 2017-10-16 | Aluminium section bar founding aluminium bar oxidation technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107723774A true CN107723774A (en) | 2018-02-23 |
Family
ID=61211593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710958165.3A Withdrawn CN107723774A (en) | 2017-10-16 | 2017-10-16 | Aluminium section bar founding aluminium bar oxidation technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107723774A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1970839A (en) * | 2005-11-23 | 2007-05-30 | 熊映明 | Bright levelling technology for aluminium alloy |
| CN101487117A (en) * | 2009-02-25 | 2009-07-22 | 西安建筑科技大学 | Preparation of aluminum alloy surface fluoroaluminate conversion film |
| CN102719871A (en) * | 2012-07-13 | 2012-10-10 | 天津市煜德隆铝业制造有限公司 | Aluminum profile oxidization operating method |
| CN103572348A (en) * | 2012-07-26 | 2014-02-12 | 江苏凯伦铝业有限公司 | Aluminum section surface micro-arc oxidation treatment method |
| CN104357840A (en) * | 2014-10-28 | 2015-02-18 | 沈阳富创精密设备有限公司 | Preparation method for surface pure aluminum or aluminum alloy coating of metal structural material |
| CN105671616A (en) * | 2016-03-16 | 2016-06-15 | 浙江鸿昌铝业有限公司 | Anticorrosive treatment technology for surface of aluminum profile |
-
2017
- 2017-10-16 CN CN201710958165.3A patent/CN107723774A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1970839A (en) * | 2005-11-23 | 2007-05-30 | 熊映明 | Bright levelling technology for aluminium alloy |
| CN101487117A (en) * | 2009-02-25 | 2009-07-22 | 西安建筑科技大学 | Preparation of aluminum alloy surface fluoroaluminate conversion film |
| CN102719871A (en) * | 2012-07-13 | 2012-10-10 | 天津市煜德隆铝业制造有限公司 | Aluminum profile oxidization operating method |
| CN103572348A (en) * | 2012-07-26 | 2014-02-12 | 江苏凯伦铝业有限公司 | Aluminum section surface micro-arc oxidation treatment method |
| CN104357840A (en) * | 2014-10-28 | 2015-02-18 | 沈阳富创精密设备有限公司 | Preparation method for surface pure aluminum or aluminum alloy coating of metal structural material |
| CN105671616A (en) * | 2016-03-16 | 2016-06-15 | 浙江鸿昌铝业有限公司 | Anticorrosive treatment technology for surface of aluminum profile |
Non-Patent Citations (1)
| Title |
|---|
| 张德忠: ""铝合金建筑型材表面处理技术及发展趋势"", 《第六届全国表面工程学术会议暨首届青年表面工程学术论坛论文集》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105506706B (en) | A kind of aluminium alloy anode oxide coloring treatment process | |
| CN104233428B (en) | A kind of method improving aluminum or aluminum alloy material surface anode oxide film alkaline resistance properties | |
| TWI573898B (en) | Surface treatment method for aluminum alloy and aluminum articles thereof | |
| CN105239083B (en) | A kind of automobile wheel hub surface handling process | |
| CN109440163B (en) | Nickel-free hole sealing agent for aluminum and aluminum alloy anodic oxide films and application thereof | |
| CN104593793B (en) | A kind of aluminium and aluminum alloy surface pre-process neutralizer | |
| CN103334140B (en) | The golden yellow dyeing of aluminium alloy anode oxide room temperature | |
| CN103352244A (en) | High-light anode oxidation and electrophoresis process of aluminium alloy | |
| CN104561876A (en) | Hot galvanizing technical method | |
| CN109837577A (en) | The surface treatment method and pre-dyeing treatment agent of metal works | |
| CN101845662A (en) | Magnesium alloy surface treating method and magnesium alloy polished by same | |
| CN108796579B (en) | Nickel-free hole sealing agent for aluminum anodic oxidation | |
| CN107761150A (en) | A kind of beryllium alumin(i)um alloy and preparation method thereof | |
| CN109735895A (en) | A kind of the electrolyte plasma polishing fluid and polishing process of aluminium alloy | |
| CN107747113A (en) | A kind of surface treatment method of non-ferrous metal workpiece | |
| CN106191959A (en) | A kind of environment-friendly type aluminium alloy sealing agent | |
| CN104451634B (en) | Aluminum and aluminum alloy passivation solution, preparation method and using method thereof | |
| KR20090007081A (en) | Conductivity anodizing method | |
| CN103510139A (en) | Anodic oxidation treatment technology for surface of aluminum alloy wheel hub | |
| CN105506705A (en) | Preparing method of aluminum alloy hard anode oxide film | |
| CN104562142A (en) | Anodizing rose bengal electrophoresis process of aluminum alloy | |
| CN103272749A (en) | Surface treatment method of zinc alloy die casting | |
| CN108221027A (en) | A kind of true black anodizing method of magnesium alloy | |
| CN107723774A (en) | Aluminium section bar founding aluminium bar oxidation technology | |
| CN115161733B (en) | Surface treatment structure of aluminum alloy and preparation method thereof |
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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180223 |
|
| WW01 | Invention patent application withdrawn after publication |