CN108624934A - A kind of production method of heat-tinting aluminium alloy extrusions - Google Patents
A kind of production method of heat-tinting aluminium alloy extrusions Download PDFInfo
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- CN108624934A CN108624934A CN201710166392.2A CN201710166392A CN108624934A CN 108624934 A CN108624934 A CN 108624934A CN 201710166392 A CN201710166392 A CN 201710166392A CN 108624934 A CN108624934 A CN 108624934A
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- aluminium alloy
- alloy extrusions
- tinting
- heat
- proximate matter
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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
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/20—Electrolytic after-treatment
- C25D11/22—Electrolytic after-treatment for colouring layers
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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
- C25D11/08—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used containing inorganic acids
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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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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
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- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
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Abstract
The present invention provides a kind of production method of heat-tinting aluminium alloy extrusions, includes the following steps：A1, it is ready to that qualified aluminium alloy extrusions is examined to carry out mechanical pretreatment；A2, it pretreated proximate matter will be carried out slowly is put into degreasing bath to carry out degreasing；A3, the proximate matter after degreasing is subjected to acid etching and/or alkaline etching, then neutralizes the proximate matter after progress acid etching and/or alkaline etching；A4, be powered proximate matter oxidation in oxidation solution；A5, well-oxygenated aluminium alloy extrusions is put into coloring slot progress electrolytic coloring；A6, the aluminium alloy extrusions coloured is put into sealing of hole in sealing of hole slot with 25 ° or more of gradient.Untreated aluminium alloy extrusions appearance is single, and it is easily corroded in moist atmosphere, after aluminium alloy extrusions heat-tinting processing, certain thickness oxide film is formed in aluminium alloy section surface, and the color of needs can be dyed, making that treated, aluminium alloy extrusions is durable, pleasing.
Description
Technical field
The present invention relates to aluminium alloy section surface processing technology fields, more specifically, more particularly to a kind of heat-tinting
The production method of aluminium alloy extrusions.
Background technology
Aluminium alloy extrusions is current door and window and the main structural material of curtain wall, worldwide extensive use.Without table
The aluminium alloy extrusions appearance of surface treatment is single, and is easily corroded in moist atmosphere, it is difficult to meet construction material high-decoration
With the requirement of strong weathering.The electrolytic coloring technology in China starts from the eighties in last century, is all nickel salt, pink salt electrolysis all the time
Coloring process, since the problems such as color is single, the stability and bad dispersibility of coloring liquid is never solved very well.
Invention content
The object of the present invention is to provide a kind of production method of heat-tinting aluminium alloy extrusions, the processed aluminium of this method closes
The surface of metal type material forms certain thickness oxide film, and can dye specified color, enable aluminum alloy to proximate matter dicoration and
Strong weathering is substantially reinforced.The technical solution adopted by the present invention is：
A kind of production method of heat-tinting aluminium alloy extrusions, it is characterised in that：This approach includes the following steps：
A1, it is ready to that qualified aluminium alloy extrusions is examined to carry out mechanical pretreatment, the mechanical pretreatment process includes：Machine
Tool sandblasting and mechanical polishing；
A2, it pretreated proximate matter will be carried out slowly is put into degreasing bath to carry out degreasing, two-stage washing is carried out after degreasing；
A3, the proximate matter after degreasing is subjected to acid etching and/or alkaline etching, then will carry out the proximate matter after acid etching and/or alkaline etching into
Row neutralizes, and after carrying out acid etching, alkaline etching and N-process, is required to carry out two-stage washing；
A4, oxidation, by proximate matter in oxidation solution it is quiet leaching 20 seconds after, power on, voltage 12-17v, conduction time root
It is determined according to proximate matter area, specifically, conduction time=film thickness/coefficient × current density, the electric current=gross area × current density,
Middle current density is 1.1-1.3ka/dm2, coefficient 0.38；
A5, well-oxygenated aluminium alloy extrusions is put into coloring slot progress electrolytic coloring, coloration time is 1 μm/1.5min,
Aluminium alloy extrusions after color must propose to carry out three-level washing immediately；
A6, the aluminium alloy extrusions coloured is put into 25 ° or more of gradient in sealing of hole slot, sealing of hole is controlled after specified time
Liquid 30 seconds, after washing drying are packed.
Preferably, the degreasing bath temperature is room temperature, a concentration of 160 ± 10g/l of H2SO4.
Preferably, in the acid etching slot：Temperature：45±30C、HF：9 ± 1g/l, etching agent：20 ± 5g/l, pH value：
2.9±0.1；In alkaline etching slot described in step A3：Temperature：42.5 ± 2.5 DEG C, free NAOH：5 ± 5g/l, AL ions：40g/l、
Alkaline etching agent：20±5g/l；The neutralization chamber temperature is room temperature, a concentration of 160 ± 10g/l of H2SO4.
Preferably, in the oxidation trough：Temperature：19±10C、H2SO4：160±5g/l、AL3+≤12±1g/l.
Preferably, in the coloring slot：Double salt stannous sulfates：10 ± 1g/l, colorant：10 ± 1g/l, nickel sulfate：19
± 1g/l, free sulfuric acid：19 ± 1g/l, voltage：17-18V, temperature：21 ± 0.5 DEG C, pH value：0.8-1.0.
Specific implementation mode
In order to better understand the present invention, the present invention is further described with reference to specific embodiment.
The present invention provides a kind of production method of heat-tinting aluminium alloy extrusions, includes the following steps：
The first step is ready to that qualified aluminium alloy extrusions is examined to carry out mechanical pretreatment, the mechanical pretreatment process packet
It includes：Mechanical sandblasting and mechanical polishing.
Second step will carry out pretreated proximate matter and be slowly put into degreasing bath to carry out degreasing, and degreasing bath temperature is room temperature,
A concentration of 160 ± 10g/l of H2SO4 carry out two-stage washing after degreasing.
Third walks, and the proximate matter after degreasing is carried out acid etching and/or alkaline etching, is then neutralized, in acid etching slot：Temperature：45
±30C、HF：9 ± 1g/l, etching agent：20 ± 5g/l, pH value：2.9±0.1；In alkaline etching slot described in step A3：Temperature：42.5
± 2.5 DEG C, free NAOH：5 ± 5g/l, AL ions：40g/l, alkaline etching agent：20±5g/l；The neutralization chamber temperature is room temperature,
A concentration of 160 ± 10g/l of H2SO4.After carrying out acid etching, alkaline etching and N-process, it is required to carry out two-stage washing.
4th step, by proximate matter in oxidation solution it is quiet leaching 20 seconds after, power on, voltage 12-17v, conduction time root
It is determined according to proximate matter area, specifically, conduction time=film thickness/coefficient × current density, the electric current=gross area × current density,
Middle current density is 1.1-1.3ka/dm2, coefficient 0.38, temperature：19±10C、H2SO4：160±5g/l、AL3+≤12±
1g/l。
Well-oxygenated aluminium alloy extrusions is put into coloring slot and carries out electrolytic coloring, coloured in slot by the 5th step：Double salt sulfuric acid are sub-
Tin：10 ± 1g/l, colorant：10 ± 1g/l, nickel sulfate：19 ± 1g/l, free sulfuric acid：19 ± 1g/l, voltage：17-18V, temperature
Degree：21 ± 0.5 DEG C, pH value：0.8-1.0, coloration time are 1 μm/1.5min, and the aluminium alloy extrusions after coloring must propose immediately
Carry out three-level washing.
The aluminium alloy extrusions coloured is put into 25 ° or more of gradient in sealing of hole slot, sealing of hole specified time by the 6th step
Draining 30 seconds afterwards, after washing drying are packed.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Finally it should be noted that：Obviously, the above embodiment is merely an example for clearly illustrating the present invention, and simultaneously
The non-restriction to embodiment.For those of ordinary skill in the art, it can also do on the basis of the above description
Go out other various forms of variations or variation.There is no necessity and possibility to exhaust all the enbodiments.And thus drawn
The obvious changes or variations that Shen goes out are still in the protection scope of this invention.
Claims (5)
1. a kind of production method of heat-tinting aluminium alloy extrusions, it is characterised in that：This approach includes the following steps：
A1, it is ready to that qualified aluminium alloy extrusions is examined to carry out mechanical pretreatment, the mechanical pretreatment process includes：Mechanical spray
Sand and mechanical polishing；
A2, it pretreated proximate matter will be carried out slowly is put into degreasing bath to carry out degreasing, two-stage washing is carried out after degreasing；
A3, the proximate matter after degreasing is subjected to acid etching and/or alkaline etching, in then carrying out the proximate matter after progress acid etching and/or alkaline etching
With after carrying out acid etching, alkaline etching and N-process, be required to carry out two-stage washing；
A4, oxidation, by proximate matter in oxidation solution it is quiet leaching 20 seconds after, power on, voltage 12-17v, conduction time is according to type
Face product determines, specifically, conduction time=film thickness/coefficient × current density, the electric current=gross area × current density, wherein electricity
Current density is 1.1-1.3ka/dm2, coefficient 0.38；
A5, well-oxygenated aluminium alloy extrusions is put into coloring slot progress electrolytic coloring, coloration time is 1 μm/1.5min, after coloring
Aluminium alloy extrusions must propose immediately carry out three-level washing；
A6, the aluminium alloy extrusions coloured is put into 25 ° or more of gradient in sealing of hole slot, draining 30 after sealing of hole specified time
Second, drying after washing is packed.
2. a kind of production method of heat-tinting aluminium alloy extrusions according to claim 1, it is characterised in that：Step A2 institutes
The degreasing bath temperature stated is room temperature, a concentration of 160 ± 10g/l of H2SO4.
3. a kind of production method of heat-tinting aluminium alloy extrusions according to claim 1, it is characterised in that：Step A3 institutes
In the acid etching slot stated：Temperature：45±30C、HF：9 ± 1g/l, etching agent：20 ± 5g/l, pH value：2.9±0.1；Described in step A3
Alkaline etching slot in：Temperature：42.5 ± 2.5 DEG C, free NAOH：5 ± 5g/l, AL ions：40g/l, alkaline etching agent：20±5g/l；Institute
It is room temperature, a concentration of 160 ± 10g/l of H2SO4 to state neutralization chamber temperature.
4. a kind of production method of heat-tinting aluminium alloy extrusions according to claim 1, it is characterised in that：Step A4 institutes
In the oxidation trough stated：Temperature：19±10C、H2SO4：160±5g/l、AL3+≤12±1g/l.
5. a kind of production method of heat-tinting aluminium alloy extrusions according to claim 1, it is characterised in that：In step A5
Coloring slot in：Double salt stannous sulfates：10 ± 1g/l, colorant：10 ± 1g/l, nickel sulfate：19 ± 1g/l, free sulfuric acid：19
± 1g/l, voltage：17-18V, temperature：21 ± 0.5 DEG C, pH value：0.8-1.0.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710166392.2A CN108624934A (en) | 2017-03-20 | 2017-03-20 | A kind of production method of heat-tinting aluminium alloy extrusions |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109652792A (en) * | 2019-01-21 | 2019-04-19 | 谢军 | A kind of production method of aluminum alloy decorating part |
| CN110699732A (en) * | 2019-07-15 | 2020-01-17 | 金华乐嘉厨具有限公司 | Micro-arc oxidation-based cookware coloring process |
| CN111455426A (en) * | 2020-06-02 | 2020-07-28 | 惠州高康达实业有限公司 | Aluminum material surface treatment process |
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| CN1232888A (en) * | 1998-04-17 | 1999-10-27 | 南海市宏基铝材厂 | Oxidizing and coloring process of golden yellow aluminium alloy shapes |
| 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 |
| CN103966639A (en) * | 2013-01-29 | 2014-08-06 | 佛山市广成铝业有限公司 | Method for preparing anodised aluminium section bar |
| CN104562135A (en) * | 2013-10-18 | 2015-04-29 | 青岛市首胜实业有限公司 | Oxidation treatment process of aluminum alloy profile for doors and windows |
| CN105063717A (en) * | 2015-08-05 | 2015-11-18 | 山东核电设备制造有限公司 | Anodizing and electrolytic coloring method for high-manganese aluminum alloy |
| CN105177666A (en) * | 2015-09-23 | 2015-12-23 | 长兴鑫祥新能源科技有限公司 | Novel aluminum profile oxidization coloring technology |
| CN105696050A (en) * | 2014-11-26 | 2016-06-22 | 重庆市巴南区永兴机械厂 | Coloring process for rough-surface section bar |
| CN105696051A (en) * | 2014-11-26 | 2016-06-22 | 重庆市巴南区永兴机械厂 | Coloring process for section bar |
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Patent Citations (8)
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| CN1232888A (en) * | 1998-04-17 | 1999-10-27 | 南海市宏基铝材厂 | Oxidizing and coloring process of golden yellow aluminium alloy shapes |
| CN103966639A (en) * | 2013-01-29 | 2014-08-06 | 佛山市广成铝业有限公司 | Method for preparing anodised aluminium section bar |
| 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 |
| CN104562135A (en) * | 2013-10-18 | 2015-04-29 | 青岛市首胜实业有限公司 | Oxidation treatment process of aluminum alloy profile for doors and windows |
| CN105696050A (en) * | 2014-11-26 | 2016-06-22 | 重庆市巴南区永兴机械厂 | Coloring process for rough-surface section bar |
| CN105696051A (en) * | 2014-11-26 | 2016-06-22 | 重庆市巴南区永兴机械厂 | Coloring process for section bar |
| CN105063717A (en) * | 2015-08-05 | 2015-11-18 | 山东核电设备制造有限公司 | Anodizing and electrolytic coloring method for high-manganese aluminum alloy |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109652792A (en) * | 2019-01-21 | 2019-04-19 | 谢军 | A kind of production method of aluminum alloy decorating part |
| CN110699732A (en) * | 2019-07-15 | 2020-01-17 | 金华乐嘉厨具有限公司 | Micro-arc oxidation-based cookware coloring process |
| CN111455426A (en) * | 2020-06-02 | 2020-07-28 | 惠州高康达实业有限公司 | Aluminum material surface treatment process |
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Application publication date: 20181009 |