CN103484885B - A kind of method removing iron tool paint layer from surface - Google Patents
A kind of method removing iron tool paint layer from surface Download PDFInfo
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- CN103484885B CN103484885B CN201310441155.4A CN201310441155A CN103484885B CN 103484885 B CN103484885 B CN 103484885B CN 201310441155 A CN201310441155 A CN 201310441155A CN 103484885 B CN103484885 B CN 103484885B
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- removing liquid
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- sodium hydroxide
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Abstract
The present invention discloses a kind of method removing iron tool paint layer from surface, after the method comprises the steps: that workpiece is incubated 10 ~ 20 minutes at-15 ~-30 DEG C, be immersed into ultrasonication 30 ~ 50min in paint-removing liquid, wherein, described paint-removing liquid is containing the sodium hydroxide of 2 ~ 5wt%, the ethoxylated dodecyl alcohol of 2 ~ 3wt%, surplus is water.The inventive method is simple to operate, and paint removal is effective, applied widely, and environmental pollution is few.
Description
Technical field
The present invention relates to a kind of method removing iron tool paint layer from surface.
Background technology
For preventing iron workpiece from getting rusty, usually at surface spraying one deck rust preventive coating of iron tool, the phenomenons such as enamelled coating is aging because long-term exposure can go out, come off, or workpiece is when keeping in repair, as welding, need the enamelled coating of workpiece surface thoroughly to be removed, again to spray paint or to keep in repair.Existing method of chemical treatment paint remover used is mostly organic solvent type, big for environment pollution.Baking thermal treatment rule easily produces obnoxious flavour, and has a negative impact to workpiece substrate.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of method removing iron tool paint layer from surface.
To achieve these goals, the invention provides following technical scheme:
A kind of method removing iron tool paint layer from surface, after comprising the steps: that workpiece is incubated 10 ~ 20 minutes at-15 ~-30 DEG C, be immersed into ultrasonication 30 ~ 50min in paint-removing liquid, wherein, described paint-removing liquid is containing the sodium hydroxide of 2 ~ 5wt%, the ethoxylated dodecyl alcohol of 2 ~ 3wt%, surplus is water.
Further, the temperature of described paint-removing liquid is 40 ~ 50 DEG C.
Further, described hyperacoustic frequency is 0.1 ~ 10MHz.
Embodiment
Below the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
Embodiment 1
The preparation of sample: spray the enamelled coating that one deck 0.2mm is thick on the iron plate through sanding and polishing process, paint vehicle is red lion board alcohol acid antirust paint, carries out spraying operation according to the description of product.
The iron plate of spraying enamelled coating is cooled to-30 DEG C, keep at such a temperature after 15 minutes, rapid immersion temperature is in the paint-removing liquid of 40 DEG C, paint-removing liquid is the mixed aqueous solution (concentration of sodium hydroxide is 5wt%, and the concentration of ethoxylated dodecyl alcohol is 2wt%) of sodium hydroxide and ethoxylated dodecyl alcohol (another name: paregal O-20, CAS:9002-92-0), be the ultrasonication 30min of 5MHz by frequency simultaneously, take out, rinse, the enamelled coating on iron plate surface comes off completely.
Reference examples 1: the iron plate of spraying enamelled coating is without cooling process, direct immersion temperature is in the paint-removing liquid of 40 DEG C, paint-removing liquid is that (concentration of sodium hydroxide is 5wt% for the mixed aqueous solution of sodium hydroxide and ethoxylated dodecyl alcohol, the concentration of ethoxylated dodecyl alcohol is 2wt%), be the ultrasonication 30min of 5MHz by frequency simultaneously, take out, rinse, the enamelled coating on iron plate surface removes area 68 ~ 70%.
Embodiment 2
The preparation of sample: spray the enamelled coating that one deck 0.3mm is thick on the iron plate through sanding and polishing process, paint vehicle is old man's board epoxy-based lacquers 15570, carries out spraying operation according to the description of product.
The iron plate of spraying enamelled coating is cooled to-20 DEG C, keep at such a temperature after 20 minutes, rapid immersion temperature is in the paint-removing liquid of 45 DEG C, paint-removing liquid is that (concentration of sodium hydroxide is 2wt% for the mixed aqueous solution of sodium hydroxide and ethoxylated dodecyl alcohol, the concentration of ethoxylated dodecyl alcohol is 3wt%), be the ultrasonication 30min of 10MHz by frequency simultaneously, take out, rinse, the enamelled coating on iron plate surface comes off completely.
Reference examples 2: the iron plate of spraying enamelled coating is without cooling process, direct immersion temperature is in the paint-removing liquid of 45 DEG C, paint-removing liquid is that (concentration of sodium hydroxide is 2wt% for the mixed aqueous solution of sodium hydroxide and ethoxylated dodecyl alcohol, the concentration of ethoxylated dodecyl alcohol is 3wt%), be the ultrasonication 30min of 10MHz by frequency simultaneously, take out, rinse, the enamelled coating on iron plate surface removes area 73 ~ 75%.
Embodiment 3
The preparation of sample: spray the enamelled coating that one deck 0.4mm is thick on the iron plate through sanding and polishing process, paint vehicle is red lion board alcohol acid antirust paint, carries out spraying operation according to the description of product.
The iron plate of spraying enamelled coating is cooled to-15 DEG C, keep at such a temperature after 10 minutes, rapid immersion temperature is in the paint-removing liquid of 50 DEG C, paint-removing liquid is that (concentration of sodium hydroxide is 4wt% for the mixed aqueous solution of sodium hydroxide and ethoxylated dodecyl alcohol, the concentration of ethoxylated dodecyl alcohol is 2.5wt%), be the ultrasonication 50min of 0.1MHz by frequency simultaneously, take out, rinse, the enamelled coating on iron plate surface comes off completely.
Reference examples 3: the iron plate of spraying enamelled coating is without cooling process, direct immersion temperature is in the paint-removing liquid of 50 DEG C, paint-removing liquid is that (concentration of sodium hydroxide is 4wt% for the mixed aqueous solution of sodium hydroxide and ethoxylated dodecyl alcohol, the concentration of ethoxylated dodecyl alcohol is 2.5wt%), be the ultrasonication 50min of 0.1MHz by frequency simultaneously, take out, rinse, the enamelled coating on iron plate surface removes area 69 ~ 71%.
Method of the present invention is mainly used in removing the epoxy-based lacquers of iron workpiece surface, alkyd paint or unsaturated polyester lacquering, and simple to operate, paint removal is effective, applied widely, and environmental pollution is few.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. remove the method for iron tool paint layer from surface for one kind, it is characterized in that, after comprising the steps: that workpiece is incubated 10 ~ 20 minutes at-15 ~-30 DEG C, be immersed into ultrasonication 30 ~ 50min in paint-removing liquid, wherein, described paint-removing liquid is containing the sodium hydroxide of 2 ~ 5wt%, and the ethoxylated dodecyl alcohol of 2 ~ 3wt%, surplus is water.
2. remove the method for iron tool paint layer from surface according to claim 1, it is characterized in that, the temperature of described paint-removing liquid is 40 ~ 50 DEG C.
3. remove the method for iron tool paint layer from surface according to claim 1, it is characterized in that, described hyperacoustic frequency is 0.1 ~ 10MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310441155.4A CN103484885B (en) | 2013-09-26 | 2013-09-26 | A kind of method removing iron tool paint layer from surface |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310441155.4A CN103484885B (en) | 2013-09-26 | 2013-09-26 | A kind of method removing iron tool paint layer from surface |
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| CN103484885A CN103484885A (en) | 2014-01-01 |
| CN103484885B true CN103484885B (en) | 2016-02-03 |
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| CN201310441155.4A Active CN103484885B (en) | 2013-09-26 | 2013-09-26 | A kind of method removing iron tool paint layer from surface |
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| NL9001596A (en) * | 1990-07-13 | 1992-02-03 | Demaco B V | Sepg. system for adhering materials esp. paint residues on tins - involves passing through bath of liquefied gas e.g. nitrous oxide, blowing generated gas on to material then refrigerating at low temp. |
| CN1775871A (en) * | 2005-12-12 | 2006-05-24 | 北京科技大学 | Alkali paint remover and its preparing and using method |
| CN1887979A (en) * | 2006-07-14 | 2007-01-03 | 北京科技大学 | Green alkaline paint remover for eliminating coating from electronic circuit board and its prepn and usage |
| CN100999627A (en) * | 2007-01-12 | 2007-07-18 | 大连三达奥克化学有限公司 | Water-base depainting agent |
| CN103013221A (en) * | 2012-12-14 | 2013-04-03 | 广东工业大学 | Preparation and application method of water-based paint remover |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0331578A (en) * | 1989-06-28 | 1991-02-12 | Matsushita Electric Ind Co Ltd | Ignition timing control device |
| JPH09131578A (en) * | 1995-11-10 | 1997-05-20 | Yoshino Shokai:Kk | Removing method of coating material on coating jig or hanger |
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2013
- 2013-09-26 CN CN201310441155.4A patent/CN103484885B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL9001596A (en) * | 1990-07-13 | 1992-02-03 | Demaco B V | Sepg. system for adhering materials esp. paint residues on tins - involves passing through bath of liquefied gas e.g. nitrous oxide, blowing generated gas on to material then refrigerating at low temp. |
| CN1775871A (en) * | 2005-12-12 | 2006-05-24 | 北京科技大学 | Alkali paint remover and its preparing and using method |
| CN1887979A (en) * | 2006-07-14 | 2007-01-03 | 北京科技大学 | Green alkaline paint remover for eliminating coating from electronic circuit board and its prepn and usage |
| CN100999627A (en) * | 2007-01-12 | 2007-07-18 | 大连三达奥克化学有限公司 | Water-base depainting agent |
| CN103013221A (en) * | 2012-12-14 | 2013-04-03 | 广东工业大学 | Preparation and application method of water-based paint remover |
Non-Patent Citations (1)
| Title |
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| "脱漆剂的研制";杨万政 等;《内蒙古石油化工》;20070131;第22卷(第1期);第34-35页 * |
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| CN103484885A (en) | 2014-01-01 |
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Effective date of registration: 20170516 Address after: 226623 Chengbei Industrial Zone, Haian County, Jiangsu, Nantong Patentee after: JIANGSU PENGFEI GROUP Co.,Ltd. Address before: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Effective date of registration: 20170516 Address after: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: 214000 Jiangsu city in Wuxi Province Economic Development Zone Huishan Spring Road No. 588 Patentee before: WUXI YANGGONG MACHINERY MANUFACTURING Co.,Ltd. |