CN107552357A - Spraying aluminum profile technique - Google Patents
Spraying aluminum profile technique Download PDFInfo
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- CN107552357A CN107552357A CN201710826292.8A CN201710826292A CN107552357A CN 107552357 A CN107552357 A CN 107552357A CN 201710826292 A CN201710826292 A CN 201710826292A CN 107552357 A CN107552357 A CN 107552357A
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- section bar
- aluminium section
- aluminium
- spraying
- aluminum profile
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Abstract
The invention discloses a kind of spraying aluminum profile technique, including dispensing before spraying, melting, refining, sampling analysis, founding；Degreasing：Aluminium section bar is placed in the phosphoric acid solution that mass fraction is 80% and soaked；Alkali cleaning：Aluminium section bar after degreasing is inserted into Na2CO3Soaked in solution；Washing：The surface of aluminium section bar is rinsed with water；Oxidation：Aluminium section bar after washing is placed in the H of concentration 98%2SO4Anode is used as in solution, makes anodic oxidation with impressed current, is passivated aluminium shape surface；Washing：The surface of aluminium section bar is rinsed with water；Drying：It is completely dry that aluminium section bar after washing is dried to water in drying oven；Surface treatment：Aluminium section bar Jing Guo anodic oxidation is sequentially placed into acetone, ethanol, deionized water, then dried up with nitrogen；Spraying：After drying, anti-fouling paint is uniformly smeared in aluminium shape surface using spraying, roller coating and/or brushing mode, obtains paint film；Solidification：After being toasted in baking oven, natural cooling.
Description
Technical field
The invention belongs to aluminium section bar processing technique field, refers in particular to a kind of smelting technology, in particular to a kind of aluminium section bar
Spraying coating process.
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 is low, but intensity is higher, and near or above high-quality steel, plasticity is good, can be processed into various section bars, tool
There are excellent electric conductivity, thermal conductivity and corrosion stability, industrially widely use, usage amount is only second to steel.Some aluminium alloys can be adopted
Good mechanical performance, physical property and corrosion resistance are obtained with heat treatment.Duralumin, hard alumin ium alloy belongs to AI-Cu-Mg systems, typically contains
There is a small amount of Mn, it is heat-treatable strengthened.It is characterized in that hardness is big, but plasticity is poor.Superduralumin belongs to Al-Cu-Mg-Zn systems, can
Heat treatment reinforcement, is intensity highest aluminium alloy, but corrosion-resistant at room temperature, and hot mastication is fast.Forging aluminium alloy is mainly
Al-Zn-Mg-Si systems alloy, although addition element species is more, content is few, thus has excellent thermoplasticity, suitably
Forging, therefore also known as reflectal.
In order that aluminium section bar has better performance, it usually needs aluminium section bar is sprayed.The quality of spraying coating process, directly
Connect the adhesive force for affecting coating, outward appearance, the humidity of coating and corrosion-resistant etc., because best film be all adhere to by
The surface conscientiously cleared up.Spraying aluminum profile technique in the past not only walks the lacquer painting for the surface of aluminum plate that sequence is cumbersome, processes also not
It is smooth, do not reach the requirement of client, visual effect is not good enough, has much room for improvement.
The content of the invention
The invention aims to overcome the deficiencies in the prior art, devises a kind of spraying aluminum profile technique.
The present invention is to be achieved through the following technical solutions：
A kind of spraying aluminum profile technique, including dispensing before spraying, melting, refining, sampling analysis, founding, in addition to following step
Suddenly：
Step a, degreasing：At normal temperatures, aluminium section bar is placed in the phosphoric acid solution that mass fraction is 80% and soaks 8-12min；
Step b, alkali cleaning：Aluminium section bar after step a degreasings is inserted into 1mol/L Na2CO38-12min is soaked in solution；
Step c, wash：Aluminium section bar is taken out, the surface of aluminium section bar is rinsed with water；
Step d, aoxidize：Aluminium section bar after washing is placed in the H of concentration 98%2SO4Anode is used as in solution, uses impressed current
Make anodic oxidation, be passivated aluminium shape surface, form the oxide-film of 10-15 μ m thicks；
Step e, wash：Aluminium section bar is taken out, the surface of aluminium section bar is rinsed with water；
Step f, dry：It is completely dry that aluminium section bar after washing is dried to water in drying oven, Control for Kiln Temperature at 100-130 DEG C,
Time control is in 20-40min；
Step g, it is surface-treated：Aluminium section bar Jing Guo anodic oxidation is sequentially placed into acetone, ethanol, deionized water, Ran Houyong
Nitrogen dries up；65 DEG C of waters bath with thermostatic control in chemical pretreatment solution are put into impregnate, dry, obtaining the aluminium section bar with protective layer；
Step h：Spraying：After drying, anti-fouling paint is uniformly smeared in aluminium shape surface using spraying, roller coating and/or brushing mode,
Paint film is obtained, film thickness is 5-15 μm；
Step i：Solidification：After 30min being toasted in the baking oven that temperature is 200-260 DEG C, natural cooling.
The operating method of the dispensing is：According to the component requirements of aluminium section bar, calculate and weigh the alloy member of required weight
Element.
The operating method of the melting is：The alloying element weighed is added in smelting furnace, heating, and be stirred, obtained
To alloy aluminium liquid.
The operating method of the refining is：Refining agent is filled with alloy aluminium liquid with inert gas using conche, pairing
Golden aluminium liquid carries out furnace refining.
The operating method of the sampling analysis is：After refining terminates, the scum silica frost on alloy aluminium liquid surface is removed, to alloy aluminium liquid
Other alloying elements of middle addition are sampled analysis, now, if the other alloying element contents deficiency added, supplement are corresponding
Other alloying elements into alloy aluminium liquid other alloying element contents meet alloy aluminium bar component requirements.
The operating method of the founding is：Real-time degasification is carried out with depassing unit in fusion-casting process, is filtered with potsherd, is melted
Equilibrium temperature field during casting.
Compared with prior art, the beneficial effects of the invention are as follows：Spraying aluminum profile processing step provided by the invention closes
Reason, easy to process, efficiency of construction is high, and the aluminium section bar after spraying has good anti-microbial property and antistatic property, final product quality
Height, good corrosion resistance, pollution resistance ability are strong, and coating attachment is close, and sensory effects are good, have permanent weather resistance, use the longevity
Life length, and aluminium shape surface is not easy to be stained with dust and other impurities, can ensure follow-up spraying effect.
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 spraying aluminum profile technique, including dispensing before spraying, melting, refining, sampling analysis, founding.The dispensing
Operating method be：According to the component requirements of aluminium section bar, calculate and weigh the alloying element of required weight.The operation of the melting
Method is：The alloying element weighed is added in smelting furnace, heating, and be stirred, obtain alloy aluminium liquid.The behaviour of the refining
It is as method：Refining agent is filled with alloy aluminium liquid with inert gas using conche, furnace refining is carried out to alloy aluminium liquid.Institute
The operating method for stating sampling analysis is：After refining terminates, the scum silica frost on alloy aluminium liquid surface is removed, to its added in alloy aluminium liquid
Its alloying element is sampled analysis, now, if the other alloying element contents deficiency added, other alloys corresponding to supplement
Element other alloying element contents into alloy aluminium liquid meet alloy aluminium bar component requirements.The operating method of the founding is：It is molten
Real-time degasification is carried out with depassing unit during casting, is filtered with potsherd, equilibrium temperature field in fusion-casting process.
A kind of spraying aluminum profile technique, it is further comprising the steps of：
Step a, degreasing：At normal temperatures, aluminium section bar is placed in the phosphoric acid solution that mass fraction is 80% and soaks 8-12min.
Step b, alkali cleaning：Aluminium section bar after step a degreasings is inserted into 1mol/L Na2CO38- is soaked in solution
12min。
Step c, wash：Aluminium section bar is taken out, the surface of aluminium section bar is rinsed with water.
Step d, aoxidize：Aluminium section bar after washing is placed in the H of concentration 98%2SO4Anode is used as in solution, with outer power-up
Stream makes anodic oxidation, is passivated aluminium shape surface, forms the oxide-film of 10-15 μ m thicks.
Step e, wash：Aluminium section bar is taken out, the surface of aluminium section bar is rinsed with water.
Step f, dry：Aluminium section bar after washing is dried to water is completely dry, and Control for Kiln Temperature is in 100-130 in drying oven
DEG C, time control is in 20-40min.
Step g, it is surface-treated：Aluminium section bar Jing Guo anodic oxidation is sequentially placed into acetone, ethanol, deionized water, so
Dried up afterwards with nitrogen；65 DEG C of waters bath with thermostatic control in chemical pretreatment solution are put into impregnate, dry, obtaining the aluminium section bar with protective layer.Institute
The formula for stating chemical pretreatment solution is：HF 0.2g/L, sodium chloride 2g/L.
Step h：Spraying：It is after drying, anti-fouling paint is uniform using spraying, roller coating and/or brushing mode in aluminium shape surface
Smear, obtain paint film, film thickness is 5-15 μm；Described anti-fouling paint, its raw material include the component of following parts by weight：Acrylic acid
Resin 10-20 parts, superchlorinated polyvinyl chloride resin 10-15 parts, toluene di-isocyanate(TDI) 3-5 parts, kaolin 3-5 parts, titanium dioxide 1-3 parts,
Nano silicon 0.3-0.5 parts, butyl silicate 3-5 parts, coalescents 1-2 parts, anti-soil bacteria remover 0.5-1 parts, solvent 15-
20 parts.Described anti-fouling paint preparation method includes following process：
Process（1）：Kaolin, titanium dioxide and nano silicon are weighed by proportioning, mixed-powder is obtained after well mixed；
Process（2）：Acrylic resin and superchlorinated polyvinyl chloride resin are weighed by proportioning, after adding solvent, is stirred, then is added thereto
Enter process（1）Obtained mixed-powder；
Process（3）：To process（2）Toluene di-isocyanate(TDI), butyl silicate, anti-soil is sequentially added in obtained mixture to remove
Microbial inoculum, coalescents, stir.
Step i：Solidification：After 30min being toasted in the baking oven that temperature is 200-260 DEG C, natural cooling.
Spraying aluminum profile processing step provided by the invention is reasonable, easy to process, and efficiency of construction is high, the aluminium section bar after spraying
With good anti-microbial property and antistatic property, final product quality height, good corrosion resistance, pollution resistance ability are strong, and coating attachment is tight
Close, sensory effects are good, have permanent weather resistance, service life length, and aluminium shape surface is not easy to be stained with dust and other impurities, energy
Enough ensure follow-up spraying effect.
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 (6)
1. a kind of spraying aluminum profile technique, including dispensing before spraying, melting, refining, sampling analysis, founding, it is characterised in that
It is further comprising the steps of：
Step a, degreasing：At normal temperatures, aluminium section bar is placed in the phosphoric acid solution that mass fraction is 80% and soaks 8-12min；
Step b, alkali cleaning：Aluminium section bar after step a degreasings is inserted into 1mol/L Na2CO38-12min is soaked in solution；
Step c, wash：Aluminium section bar is taken out, the surface of aluminium section bar is rinsed with water；
Step d, aoxidize：Aluminium section bar after washing is placed in the H of concentration 98%2SO4Anode is used as in solution, is made with impressed current
Anodic oxidation, aluminium shape surface is passivated, forms the oxide-film of 10-15 μ m thicks；
Step e, wash：Aluminium section bar is taken out, the surface of aluminium section bar is rinsed with water；
Step f, dry：It is completely dry that aluminium section bar after washing is dried to water in drying oven, Control for Kiln Temperature at 100-130 DEG C,
Time control is in 20-40min；
Step g, it is surface-treated：Aluminium section bar Jing Guo anodic oxidation is sequentially placed into acetone, ethanol, deionized water, Ran Houyong
Nitrogen dries up；65 DEG C of waters bath with thermostatic control in chemical pretreatment solution are put into impregnate, dry, obtaining the aluminium section bar with protective layer；
Step h：Spraying：After drying, anti-fouling paint is uniformly smeared in aluminium shape surface using spraying, roller coating and/or brushing mode,
Paint film is obtained, film thickness is 5-15 μm；
Step i：Solidification：After 30min being toasted in the baking oven that temperature is 200-260 DEG C, natural cooling.
2. spraying aluminum profile technique according to claim 1, it is characterised in that：The operating method of the dispensing is：According to
The component requirements of aluminium section bar, calculate and weigh the alloying element of required weight.
3. spraying aluminum profile technique according to claim 2, it is characterised in that：The operating method of the melting is：It will claim
The alloying element taken is added in smelting furnace, heating, and is stirred, and obtains alloy aluminium liquid.
4. spraying aluminum profile technique according to claim 3, it is characterised in that：The operating method of the refining is：Utilize
Refining agent is filled with alloy aluminium liquid by conche with inert gas, and furnace refining is carried out to alloy aluminium liquid.
5. spraying aluminum profile technique according to claim 4, it is characterised in that：The operating method of the sampling analysis is：
After refining terminates, the scum silica frost on alloy aluminium liquid surface is removed, analysis is sampled to the other alloying elements added in alloy aluminium liquid,
Now, if the other alloying element contents deficiency added, other alloying elements other conjunctions into alloy aluminium liquid corresponding to supplement
Gold dollar cellulose content meets alloy aluminium bar component requirements.
6. spraying aluminum profile technique according to claim 5, it is characterised in that：The operating method of the founding is：Founding
During with depassing unit carry out real-time degasification, filtered with potsherd, equilibrium temperature field in fusion-casting process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710826292.8A CN107552357A (en) | 2017-09-14 | 2017-09-14 | Spraying aluminum profile technique |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710826292.8A CN107552357A (en) | 2017-09-14 | 2017-09-14 | Spraying aluminum profile technique |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108566875A (en) * | 2018-02-06 | 2018-09-25 | 金华市邀特科技有限公司 | Energy-saving agricultural water injector |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941894A (en) * | 2015-07-13 | 2015-09-30 | 上海金泛斯标识有限公司 | Aluminum profile spraying technology |
| 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
- 2017-09-14 CN CN201710826292.8A patent/CN107552357A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941894A (en) * | 2015-07-13 | 2015-09-30 | 上海金泛斯标识有限公司 | Aluminum profile spraying technology |
| 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 (2)
| Title |
|---|
| 厉衡隆等: "《铝冶炼生产技术手册（下册）》", 31 July 2011, 冶金工业出版社 * |
| 王恭敏等: "《有色金属工业企业管理学》", 31 December 1991, 东北工学院出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108566875A (en) * | 2018-02-06 | 2018-09-25 | 金华市邀特科技有限公司 | Energy-saving agricultural water injector |
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