CN103484879A - Method for removing paint layer on surface of workpiece - Google Patents
Method for removing paint layer on surface of workpiece Download PDFInfo
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- CN103484879A CN103484879A CN201310441168.1A CN201310441168A CN103484879A CN 103484879 A CN103484879 A CN 103484879A CN 201310441168 A CN201310441168 A CN 201310441168A CN 103484879 A CN103484879 A CN 103484879A
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- paint
- enamelled coating
- workpiece
- removing liquid
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Abstract
The invention discloses a method for removing a paint layer on the surface of a workpiece. The method comprises the following steps: performing heat insulation on the workpiece at the temperature ranging from 20 DEG C below zero to 30 DEG C below zero for 10-20 min, and immersing into a pain removing liquid for ultrasonic wave treatment for 30-50 min. According to the method, the operation is simple, the paint removing effect is good, the application range is wide, and the environmental pollution is low.
Description
Technical field
The present invention relates to a kind of method of removing the workpiece surface enamelled coating.
Background technology
The phenomenons such as the enamelled coating of workpiece surface is aging because long-term exposure can go out, come off, or workpiece as welding, need to thoroughly be removed the enamelled coating of workpiece surface, in order to again spray paint or keep in repair when maintenance.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 workpiece substrate is had a negative impact.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of method of removing the workpiece surface enamelled coating is provided.
To achieve these goals, the invention provides following technical scheme:
A kind of method of removing the workpiece surface enamelled coating, after comprising the steps: that workpiece is incubated 10～20 minutes under-20～-30 ℃, be immersed into ultrasonication 30～50min in paint-removing liquid.
Further, the mixed aqueous solution that described paint-removing liquid is sodium hydroxide and sodium laurylsulfonate, wherein, the concentration of sodium hydroxide is 2～5wt%, the concentration of sodium laurylsulfonate is 0.5～1.5wt%.
Further, the temperature of described paint-removing liquid is 35～45 ℃.
Further, described hyperacoustic frequency is 1～10MHz.
Embodiment
Below the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.
Embodiment 1
The preparation of sample: the thick enamelled coating of spraying one deck 0.2mm on the steel plate of processing through sanding and polishing, paint vehicle is old man's board epoxy-based lacquers 15570, according to the description of product, sprays operation.
The steel plate of spraying enamelled coating is cooled to-30 ℃, at this temperature, keep after 15 minutes, immerse rapidly in the paint-removing liquid that temperature is 35 ℃, (concentration of sodium hydroxide is 5wt% to the mixed aqueous solution that paint-removing liquid is sodium hydroxide and sodium laurylsulfonate, the concentration of sodium laurylsulfonate is 1wt%), the ultrasonication 30min that is simultaneously 5MHz by frequency, take out, rinse, the enamelled coating of surface of steel plate comes off fully.
Reference examples 1: the steel plate of spraying enamelled coating is without cooling process, directly immerse in the paint-removing liquid that temperature is 35 ℃, (concentration of sodium hydroxide is 5wt% to the mixed aqueous solution that paint-removing liquid is sodium hydroxide and sodium laurylsulfonate, the concentration of sodium laurylsulfonate is 1wt%), the ultrasonication 30min that is simultaneously 5MHz by frequency, take out, rinse, the enamelled coating of surface of steel plate removes area 73～75%.
Embodiment 2
The preparation of sample: the thick enamelled coating of spraying one deck 0.2mm on the steel plate of processing through sanding and polishing, paint vehicle is red lion board alcohol acid antirust paint, according to the description of product, sprays operation.
The steel plate of spraying enamelled coating is cooled to-20 ℃, at this temperature, keep after 20 minutes, immerse rapidly in the paint-removing liquid that temperature is 45 ℃, (concentration of sodium hydroxide is 2wt% to the mixed aqueous solution that paint-removing liquid is sodium hydroxide and sodium laurylsulfonate, the concentration of sodium laurylsulfonate is 1.5wt%), the ultrasonication 30min that is simultaneously 10MHz by frequency, take out, rinse, the enamelled coating of surface of steel plate comes off fully.
Reference examples 2: the steel plate of spraying enamelled coating is without cooling process, directly immerse in the paint-removing liquid that temperature is 45 ℃, (concentration of sodium hydroxide is 2wt% to the mixed aqueous solution that paint-removing liquid is sodium hydroxide and sodium laurylsulfonate, the concentration of sodium laurylsulfonate is 1.5wt%), the ultrasonication 30min that is simultaneously 10MHz by frequency, take out, rinse, the enamelled coating of surface of steel plate removes area 77～78%.
Embodiment 3
The preparation of sample: the thick enamelled coating of spraying one deck 0.35mm on the steel plate of processing through sanding and polishing, paint vehicle is old man's board epoxy-based lacquers 15570, according to the description of product, sprays operation.
The steel plate of spraying enamelled coating is cooled to-25 ℃, at this temperature, keep after 10 minutes, immerse rapidly in the paint-removing liquid that temperature is 45 ℃, (concentration of sodium hydroxide is 4wt% to the mixed aqueous solution that paint-removing liquid is sodium hydroxide and sodium laurylsulfonate, the concentration of sodium laurylsulfonate is 0.5wt%), the ultrasonication 50min that is simultaneously 1MHz by frequency, take out, rinse, the enamelled coating of surface of steel plate comes off fully.
Reference examples 3: the steel plate of spraying enamelled coating is without cooling process, directly immerse in the paint-removing liquid that temperature is 45 ℃, (concentration of sodium hydroxide is 4wt% to the mixed aqueous solution that paint-removing liquid is sodium hydroxide and sodium laurylsulfonate, the concentration of sodium laurylsulfonate is 0.5wt%), the ultrasonication 50min that is simultaneously 1MHz by frequency, take out, rinse, the enamelled coating of surface of steel plate removes area 77～78%.
Method of the present invention is mainly used in removing epoxy-based lacquers, alkyd paint or the unsaturated polyester lacquering of surface of workpiece, 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, the present invention is had been described in detail, for a person skilled in the art, its technical scheme that still can put down in writing aforementioned each embodiment is modified, or part technical characterictic wherein is equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (4)
1. a method of removing the workpiece surface enamelled coating, is characterized in that, after comprising the steps: that workpiece is incubated 10～20 minutes under-20～-30 ℃, is immersed into ultrasonication 30～50min in paint-removing liquid.
2. remove according to claim 1 the method for workpiece surface enamelled coating, it is characterized in that, the mixed aqueous solution that described paint-removing liquid is sodium hydroxide and sodium laurylsulfonate, wherein, the concentration of sodium hydroxide is 2～5wt%, and the concentration of sodium laurylsulfonate is 0.5～1.5wt%.
3. remove according to claim 1 the method for workpiece surface enamelled coating, it is characterized in that, the temperature of described paint-removing liquid is 35～45 ℃.
4. remove according to claim 1 the method for workpiece surface enamelled coating, it is characterized in that, described hyperacoustic frequency is 1～10MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310441168.1A CN103484879B (en) | 2013-09-26 | 2013-09-26 | A kind of method removing paint layer on surface of workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310441168.1A CN103484879B (en) | 2013-09-26 | 2013-09-26 | A kind of method removing paint layer on surface of workpiece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103484879A true CN103484879A (en) | 2014-01-01 |
| CN103484879B CN103484879B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310441168.1A Active CN103484879B (en) | 2013-09-26 | 2013-09-26 | A kind of method removing paint layer on surface of workpiece |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104984948A (en) * | 2015-06-05 | 2015-10-21 | 哈尔滨飞机工业集团有限责任公司 | Reworking method of primer-coated part |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09131578A (en) * | 1995-11-10 | 1997-05-20 | Yoshino Shokai:Kk | Removing method of coating material on coating jig or hanger |
| 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 |
-
2013
- 2013-09-26 CN CN201310441168.1A patent/CN103484879B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09131578A (en) * | 1995-11-10 | 1997-05-20 | Yoshino Shokai:Kk | Removing method of coating material on coating jig or hanger |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104984948A (en) * | 2015-06-05 | 2015-10-21 | 哈尔滨飞机工业集团有限责任公司 | Reworking method of primer-coated part |
| CN104984948B (en) * | 2015-06-05 | 2017-06-06 | 哈尔滨飞机工业集团有限责任公司 | One kind applies primer part reworking method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103484879B (en) | 2016-01-20 |
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| C14 | Grant of patent or utility model | ||
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Guilou Inventor before: Yang Longxing |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170519 Address after: 523900, Houjie Road, Houjie Town, Guangdong, Dongguan Province third industrial zone Patentee after: DONGGUAN CITY TYT METAL TECHNOLOGY 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: 20170519 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. |