CN105040074A - Electrophoresis wood grain aluminum profile and manufacturing process thereof - Google Patents
Electrophoresis wood grain aluminum profile and manufacturing process thereof Download PDFInfo
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- CN105040074A CN105040074A CN201510484180.XA CN201510484180A CN105040074A CN 105040074 A CN105040074 A CN 105040074A CN 201510484180 A CN201510484180 A CN 201510484180A CN 105040074 A CN105040074 A CN 105040074A
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Abstract
The invention provides an electrophoresis wood grain aluminum profile and a manufacturing process thereof. The manufacturing process comprises a degreasing process, an alkali corrosion process, a dust removal process and an electrophoresis process. In the manufacturing process, various kinds of oil dirt exist on the surface of foamed aluminum, and the oil dirt is mainly various kinds of cooling cutting fluid, lubricating oil and anti-rust oil grease for rust prevention in the machining process; due to the oil dirt, the quality of following surface treatment procedures is affected, and the binding force of a coating and a base body is reduced; in order to obtain the electro-deposition coating which is excellent in surface state and good in corrosion resistance, surface treatment is needed before coating operation. Firstly, the dirt such as oil dirt and rusty spots on the surface of a coated object needs to be removed. By means of an electrophoresis method, the color of the base body can be covered, no accumulation phenomenon exists to the surface, a paint film is fine and smooth and is not coarse, and meanwhile no pin hole is formed.
Description
Technical field
The present invention relates to a kind of aluminium section bar, particularly relate to a kind of electrophoresis wood grain aluminium profiles Materials And Manufacturing Processes.
Background technology
Electrophoretic painting is immersed in by coated article in water soluble paint as negative electrode (or anode), separately establish an anode (or negative electrode) corresponding thereto, direct current is led at two interpolars, by the physics chemical action that electricity produces, make a kind of coating process of paint on workpiece, the principle that electro-deposition coating uses is from electrophoresis, namely charged colloidal particle is under the effect of DC electric field, towards with it electrically charged contrary direction move that " cathode electrodip painting is that organic polymer is prepared into cationic superpolymer, under DC electric field effect, cation superpolymer deposits on negative electrode, through crosslinking curing film forming.In cathode electro-coating process, because electrocoating paint tank liquor is in acid, electrophoresis cell body requirement acid resisting material manufactures, the resin of cathode electrodip painting is resin cation (R.C.), positively charged in electrophoresis groove liquid, under DC electric field effect, positively charged resin cation (R.C.) is shifted to cathode-workpiece and is deposited on and workpiece forms film and the object reaching coating workpieces.
Summary of the invention
The invention provides a kind of electrophoresis wood grain aluminium profiles Materials And Manufacturing Processes, described technique concrete steps are:
(1) degreasing process: aluminium section bar is put into after degreaser soaks 5-10min and take out, and the pH controlling degreaser is not more than 10;
(2) alkaline etching technique: by the aluminium section bar after degreasing in step (1), put into the sodium hydroxide solution of 3-5g/L, soak 0.5-1min at 20-30 DEG C, go out rear for subsequent use;
(3) dedusting process: aluminium section bar for subsequent use after process in step (2) being inserted volume parts is that the nitric acid of 10-25% floods 1-3min at 20-25 DEG C;
(4) electrophoresis process: add electrophoretic paint by electrophoresis chamber, add in electrophoresis chamber by the aluminium section bar in step (3) afterwards, control electrophoretic voltage to 20-80V, electrophoresis time is 3-5min, electrophoresis pole distance is 5-15cm, and electrophoresis terminates to dry aluminium section bar afterwards.
Preferably, the consisting of of degreaser in described step (1): 20-30% sodium carbonate, 10-15% sodium phosphate, 15-20% water glass, 5-10%OP emulsifying agent, excess water.
Preferably, each concentration of component of described degreaser is: sodium carbonate 20-40g/L, sodium phosphate 10-20g/L, water glass 10-20g/L, OP emulsifying agent 2-4ml/L.
Preferably, in described step (4), the component of electrophoretic paint is methyl methacrylate, butyl acrylate, methacrylic acid, vinylformic acid.
Preferably, the ratio in described step (4) between each component of electrophoretic paint is: methyl methacrylate: butyl acrylate: methacrylic acid: vinylformic acid=44:37:4:8.
Preferably, described bake out temperature is 140-180 DEG C.
A kind of electrophoresis wood grain aluminium section bar, it is characterized in that, described wood grain aluminium section bar wood grain film thickness is 20-25um, and pin hole rate is 3-5%.
Beneficial effect: the invention provides a kind of electrophoresis wood grain aluminium profiles Materials And Manufacturing Processes, comprise degreasing process, alkaline etching technique, dedusting process, electrophoresis process, foamed aluminium in the fabrication process, surface can with various greasy dirt, various cooling cutting fluids mainly in mechanical processing process, lubricating oil and antirust various antirust greases, the existence of these greasy dirts, not only can affect the quality of follow-up surface treatment procedure, but also the bonding force of coating and matrix can be reduced, in order to obtain condition of surface excellent anticorrosion electrodeposited coating of good performance, surface treatment must be carried out before application.First the various dirts on coated article surface will be removed, as: greasy dirt, rust staining etc.Utilize electrophoresis method provided by the invention, can cover matrix color, surface without packing phenomenon, paint film exquisiteness is not coarse, simultaneously free of pinholes.
Embodiment
The technique means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with embodiment, setting forth the present invention further.
Embodiment 1
The invention provides a kind of electrophoresis wood grain aluminium profiles Materials And Manufacturing Processes, described technique concrete steps are:
(1) degreasing process: aluminium section bar is put into after degreaser soaks 5min and take out, and the pH controlling degreaser is not more than 10;
(2) alkaline etching technique: by the aluminium section bar after degreasing in step (1), put into the sodium hydroxide solution of 3g/L, soak 0.5min at 20 DEG C, go out rear for subsequent use;
(3) dedusting process: aluminium section bar for subsequent use after process in step (2) is inserted volume parts be 10% nitric acid at 20 DEG C, flood 1min;
(4) electrophoresis process: add electrophoretic paint by electrophoresis chamber, add in electrophoresis chamber by the aluminium section bar in step (3) afterwards, control electrophoretic voltage to 20V, electrophoresis time is 3min, electrophoresis pole distance is 5cm, and electrophoresis terminates to dry aluminium section bar afterwards.
Wherein, consisting of of the middle degreaser of described step (1): 20% sodium carbonate, 10% sodium phosphate, 15% water glass, 5%OP emulsifying agent, excess water, the each concentration of component of described degreaser is: sodium carbonate 20g/L, sodium phosphate 10g/L, water glass 10g/L, OP emulsifying agent 2ml/L, in described step (4), the component of electrophoretic paint is methyl methacrylate, butyl acrylate, methacrylic acid, vinylformic acid, ratio in described step (4) between each component of electrophoretic paint is: methyl methacrylate: butyl acrylate: methacrylic acid: vinylformic acid=44:37:4:8, described bake out temperature is 140 DEG C, a kind of electrophoresis wood grain aluminium section bar, wood grain film thickness is 20m, pin hole rate is 3%.
Embodiment 2
The invention provides a kind of electrophoresis wood grain aluminium profiles Materials And Manufacturing Processes, described technique concrete steps are:
(1) degreasing process: aluminium section bar is put into after degreaser soaks 8min and take out, and the pH controlling degreaser is not more than 10;
(2) alkaline etching technique: by the aluminium section bar after degreasing in step (1), put into the sodium hydroxide solution of 4g/L, soak 0.8min at 25 DEG C, go out rear for subsequent use;
(3) dedusting process: aluminium section bar for subsequent use after process in step (2) is inserted volume parts be 20% nitric acid at 22 DEG C, flood 2min;
(4) electrophoresis process: add electrophoretic paint by electrophoresis chamber, add in electrophoresis chamber by the aluminium section bar in step (3) afterwards, control electrophoretic voltage to 50V, electrophoresis time is 4min, electrophoresis pole distance is 10cm, and electrophoresis terminates to dry aluminium section bar afterwards.
Wherein, consisting of of the middle degreaser of described step (1): 25% sodium carbonate, 12% sodium phosphate, 17% water glass, 8%OP emulsifying agent, excess water, the each concentration of component of described degreaser is: sodium carbonate 30g/L, sodium phosphate 15g/L, water glass 15g/L, OP emulsifying agent 3ml/L, in described step (4), the component of electrophoretic paint is methyl methacrylate, butyl acrylate, methacrylic acid, vinylformic acid, ratio in described step (4) between each component of electrophoretic paint is: methyl methacrylate: butyl acrylate: methacrylic acid: vinylformic acid=44:37:4:8, described bake out temperature is 160 DEG C, a kind of electrophoresis wood grain aluminium section bar, wood grain film thickness is 23um, pin hole rate is 4%.
Embodiment 3
The invention provides a kind of electrophoresis wood grain aluminium profiles Materials And Manufacturing Processes, described technique concrete steps are:
(1) degreasing process: aluminium section bar is put into after degreaser soaks 10min and take out, and the pH controlling degreaser is not more than 10;
(2) alkaline etching technique: by the aluminium section bar after degreasing in step (1), put into the sodium hydroxide solution of 5g/L, soak 1min at 30 DEG C, go out rear for subsequent use;
(3) dedusting process: aluminium section bar for subsequent use after process in step (2) is inserted volume parts be 25% nitric acid at 25 DEG C, flood 3min;
(4) electrophoresis process: add electrophoretic paint by electrophoresis chamber, add in electrophoresis chamber by the aluminium section bar in step (3) afterwards, control electrophoretic voltage to 80V, electrophoresis time is 5min, electrophoresis pole distance is 15cm, and electrophoresis terminates to dry aluminium section bar afterwards.
Wherein, consisting of of the middle degreaser of described step (1): 30% sodium carbonate, 15% sodium phosphate, 20% water glass, 10%OP emulsifying agent, excess water, the each concentration of component of described degreaser is: sodium carbonate 40g/L, sodium phosphate 20g/L, water glass 20g/L, OP emulsifying agent 4ml/L, in described step (4), the component of electrophoretic paint is methyl methacrylate, butyl acrylate, methacrylic acid, vinylformic acid, ratio in described step (4) between each component of electrophoretic paint is: methyl methacrylate: butyl acrylate: methacrylic acid: vinylformic acid=44:37:4:8, described bake out temperature is 180 DEG C, a kind of electrophoresis wood grain aluminium section bar, wood grain film thickness is 25um, pin hole rate is 5%.
| Paint film appearance | Thickness | Pin hole rate | |
| Embodiment 1 | Uniform ground | 25un | 5％ |
| Embodiment 2 | Uniform ground | 23um | 4％ |
| Embodiment 3 | Uniform ground | 20um | 3％ |
| Prior art parameter | There is a small amount of accumulation, have pin hole | 10um | 14％ |
As can be seen from above table data, the electrophoresis wood grain aluminium section bar paint film appearance uniform ground utilizing technique provided by the invention to make, plated film is thicker, and pin hole rate is low.
The invention provides a kind of electrophoresis wood grain aluminium profiles Materials And Manufacturing Processes, comprise degreasing process, alkaline etching technique, dedusting process, electrophoresis process, foamed aluminium in the fabrication process, surface can with various greasy dirt, various cooling cutting fluids mainly in mechanical processing process, lubricating oil and antirust various antirust greases, the existence of these greasy dirts, not only can affect the quality of follow-up surface treatment procedure, but also the bonding force of coating and matrix can be reduced, in order to obtain condition of surface excellent anticorrosion electrodeposited coating of good performance, surface treatment must be carried out before application.First the various dirts on coated article surface will be removed, as: greasy dirt, rust staining etc.Utilize electrophoresis method provided by the invention, can cover matrix color, surface without packing phenomenon, paint film exquisiteness is not coarse, simultaneously free of pinholes.
As known by the technical knowledge, the present invention can be realized by other the embodiment not departing from its spirit or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, is not only.Within the scope of the present invention all or be all included in the invention being equal to the change in scope of the present invention.
Claims (7)
1. an electrophoresis wood grain aluminium section bar manufacturing process, is characterized in that, described processing step is:
(1) degreasing process: aluminium section bar is put into after degreaser soaks 5-10min and take out, and the pH controlling degreaser is not more than 10;
(2) alkaline etching technique: by the aluminium section bar after degreasing in step (1), put into the sodium hydroxide solution of 3-5g/L, soak 0.5-1min at 20-30 DEG C, go out rear for subsequent use;
(3) dedusting process: aluminium section bar for subsequent use after process in step (2) being inserted volume parts is that the nitric acid of 10-25% floods 1-3min at 20-25 DEG C;
(4) electrophoresis process: add electrophoretic paint by electrophoresis chamber, add in electrophoresis chamber by the aluminium section bar in step (3) afterwards, control electrophoretic voltage to 20-80V, electrophoresis time is 3-5min, electrophoresis pole distance is 5-15cm, and electrophoresis terminates to dry aluminium section bar afterwards.
2. electrophoresis wood grain aluminium section bar manufacturing process according to claim 1, it is characterized in that, consisting of of the middle degreaser of described step (1): 20-30% sodium carbonate, 10-15% sodium phosphate, 15-20% water glass, 5-10%OP emulsifying agent, excess water.
3. electrophoresis wood grain aluminium section bar manufacturing process according to claim 2, it is characterized in that, each concentration of component of described degreaser is: sodium carbonate 20-40g/L, sodium phosphate 10-20g/L, water glass 10-20g/L, OP emulsifying agent 2-4ml/L.
4. electrophoresis wood grain aluminium section bar manufacturing process according to claim 1, is characterized in that, in described step (4), the component of electrophoretic paint is methyl methacrylate, butyl acrylate, methacrylic acid, vinylformic acid.
5. electrophoresis wood grain aluminium section bar manufacturing process according to claim 4, it is characterized in that, the ratio in described step (4) between each component of electrophoretic paint is: methyl methacrylate: butyl acrylate: methacrylic acid: vinylformic acid=44:37:4:8.
6. electrophoresis wood grain aluminium section bar manufacturing process according to claim 1, it is characterized in that, described bake out temperature is 140-180 DEG C.
7. utilize the manufacture technics electrophoresis wood grain aluminium section bar described in claim 1, it is characterized in that, described wood grain aluminium section bar wood grain film thickness is 20-25um, and pin hole rate is 3-5%.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108486635A (en) * | 2018-03-23 | 2018-09-04 | 佛山市斯芬克斯贸易有限公司 | Aluminium shape surface transparent color water paint electrophoresis process |
| CN108774745A (en) * | 2018-05-30 | 2018-11-09 | 广东耀银山铝业有限公司 | A kind of easy pole electrophoresis production technology and aluminium section bar obtained |
| CN108823470A (en) * | 2018-07-09 | 2018-11-16 | 浙江自强铝业有限公司 | A kind of aluminum profile and preparation method thereof handled by electrophoresis wood grain surfaces |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031549A (en) * | 2009-09-29 | 2011-04-27 | 吉林利源铝业股份有限公司 | Manufacturing method of aluminum alloy electrophoresis wood grain profile |
| CN103820835A (en) * | 2013-11-12 | 2014-05-28 | 浙江卓逸铝业有限公司 | Color electrophoretic coating process of aluminum alloy sections |
| CN104558374A (en) * | 2013-10-29 | 2015-04-29 | 谭克凰 | Method for preparing acrylic resin |
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2015
- 2015-08-04 CN CN201510484180.XA patent/CN105040074A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031549A (en) * | 2009-09-29 | 2011-04-27 | 吉林利源铝业股份有限公司 | Manufacturing method of aluminum alloy electrophoresis wood grain profile |
| CN104558374A (en) * | 2013-10-29 | 2015-04-29 | 谭克凰 | Method for preparing acrylic resin |
| CN103820835A (en) * | 2013-11-12 | 2014-05-28 | 浙江卓逸铝业有限公司 | Color electrophoretic coating process of aluminum alloy sections |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108486635A (en) * | 2018-03-23 | 2018-09-04 | 佛山市斯芬克斯贸易有限公司 | Aluminium shape surface transparent color water paint electrophoresis process |
| CN108774745A (en) * | 2018-05-30 | 2018-11-09 | 广东耀银山铝业有限公司 | A kind of easy pole electrophoresis production technology and aluminium section bar obtained |
| CN108823470A (en) * | 2018-07-09 | 2018-11-16 | 浙江自强铝业有限公司 | A kind of aluminum profile and preparation method thereof handled by electrophoresis wood grain surfaces |
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Application publication date: 20151111 |