CN105551912A - Internal coating technology for helical energy-saving lamp tube - Google Patents
Internal coating technology for helical energy-saving lamp tube Download PDFInfo
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- CN105551912A CN105551912A CN201510957682.XA CN201510957682A CN105551912A CN 105551912 A CN105551912 A CN 105551912A CN 201510957682 A CN201510957682 A CN 201510957682A CN 105551912 A CN105551912 A CN 105551912A
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- Prior art keywords
- fluorescent tube
- coating
- slurries
- negative pressure
- saving fluorescent
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
- H01J9/22—Applying luminescent coatings
- H01J9/221—Applying luminescent coatings in continuous layers
- H01J9/223—Applying luminescent coatings in continuous layers by uniformly dispersing of liquid
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention provides an internal coating technology for a helical energy-saving lamp tube. The technology comprises the steps as follows: firstly, a fluorescent tube is coated with slurry for preparation; the prepared coating slurry comprises fluorescent powder, a binder, phenolic resin, polyacrylamide and a solvent; various raw materials are weighed and added to the solvent according to the proportion; the raw materials are added to spouting equipment after being mixed evenly; intermittent negative pressure supply is carried out by a negative pressure device in the powder coating process; the powder coating uniformity is improved through cyclic action of negative pressure adsorption and the gravity in the energy-saving lamp tube; pre-drying and molding are carried out by cooperation with low-temperature air; drying is carried out by a medium-temperature air supply mode in a drying room; the drying efficiency can be effectively improved; and raise dust in the drying room is reduced. According to the internal coating technology for the helical energy-saving lamp tube, the processing environment of the lamp tube product is improved; a product is coated evenly; and the quality grade of the product is improved.
Description
Technical field
The present invention relates to preparation technology and the technical field of light fixture, be specially coating process in a kind of spiral energy saving fluorescent tube.
Background technology
Often electricity-saving lamp will be used at the lighting field of daily life, and spiral energy saving fluorescent tube occupies greatly in the utilization rate of power saving fluorescent lamps, in general, the production process of this spiral energy-saving lamp mainly comprises: hair is trained exposed conduit, bend pipe, shaping, dusting, roasted tube, seals, connect bridge, exhaust, packaged lamp processing step, wherein dusting is the very important operation of in electricity-saving lamp production process one, and the uniformity of its dusting and dusting thickness directly have influence on the luminous flux, color rendering index etc. of the related lamp tube parameter directly related with lamp tube quality.
In traditional semi-automatic coating process, shaping nature of glass fluorescent tube injects a certain amount of batter powder slurry by perfusion equipment.Make power saving fluorescent lamps inwall apply the comparatively uniform coating of last layer, then by roasted tube equipment heat drying, the solvent evaporates in bisque is fallen thus forms comparatively firmly bisque.But, in actual mechanical process, common energy saving straight tube lamp due to tube tube body comparatively simple, tube wall is vertically smooth, thus dusting is smooth and even, and spiral lamp tube is due to the uncertainty of lamp tube shapes, and powder oar flowing difficulty is large, easily long-pending folded, a key point of its development of its coating process restriction always.
Summary of the invention
Technical problem solved by the invention is to provide coating process in a kind of spiral energy saving fluorescent tube, to solve the shortcoming in above-mentioned background technology.
Technical problem solved by the invention realizes by the following technical solutions:
Coating process in a kind of spiral energy saving fluorescent tube, its concrete operation step comprises:
1, fluorescent tube coating slurries are prepared, in the coating slurries of its preparation, the proportioning of fluorescent material and binding agent is 2:1 ~ 3:1, in addition, be also added with in these coating slurries slurries account for coating slurries total mass ratio 3 ~ 5% phenolic resins and account for coating slurries total mass ratio 1 ~ 3% polyacrylamide.
2, according to length and the size counterweight coating slurries of the fluorescent tube of required coating, the thickness that can apply in fluorescent tube to apply slurries is advisable at 10 ~ 18 μm, and slurry is added spouting plant.
3, clamping fluorescent tube on station, the device of fluorescent tube and the angle of horizontal plane keep the angle of 15 ~ 20 °, one end in fluorescent tube original paper two openings connects the mouth spray of spouting plant, other end opening then connects negative pressure device, in mouth spray whitewashing, and power saving fluorescent lamps is rotated on station around Pivot Point Center, and intermittent negative pressure is provided, its intermittent time opened and closed is 30s and 15s, and carries out cold air distribution at negative pressure equipment end, and the processing time of this process is 8 ~ 15min.
4, be placed into by power saving fluorescent lamps on the feathering axis in hothouse and make its drying that pivots, the air-supply of middle temperature, its drying time is 5 ~ 8min, to be driedly completes, discharging, and collects, to leave standstill after cooling both finished product.
In the present invention, the binding agent applied in described step 1 in slurries slurries preferably adopts acrylate copolymer binding agent or polymerized cyclic ethers derivative binding agent.
In the present invention, the solvent in described step 1 preferably adopts deionized water or water-soluble solvent.
In the present invention, the end face of the mouth spray of described spouting plant is provided with sealing device, and at sealing device end, mouth spray is directly inserted in tube tube body, to avoid fluorescent tube original paper and mouth spray junction in the operation process of step 3, slurries occur and leak.
In the present invention, the pressure of the subnormal ambient of described negative pressure device is that 60 holder ~ 80 are held in the palm.
In the present invention, the speed that described power saving fluorescent lamps then rotates around Pivot Point Center in station and hothouse is 100 ~ 150rpm.
In the present invention, in step 3 process, the wind pushing temperature of negative pressure equipment end low temperature is 40 ~ 50 DEG C, and air-supply wind speed is 1 ~ 3m/s
In the present invention, every tubes is preferably 10 ~ 12min the process time in step 3 process.
In the present invention, described power saving fluorescent lamps is in the process of hothouse drying, and wind pushing temperature is 100 ~ 120 DEG C, and the wind speed of air-supply is 4 ~ 8m/s.
Beneficial effect: the present invention's mixing utilizes flow by gravity and fluorescent tube spatial movement to carry out the combination of two kinds of motion modes of negative-pressure guide, effectively fluorescent material oar uniform application on the inwall of special-shaped fluorescent tube, the consistency of thickness that the fluorescent material of finished product tube inner wall is applied is good, effectively improves product quality.
Embodiment
Give an actual example below and describe the present invention.
First fluorescent tube coating slurries are prepared, choose fluorescent material 250 mass parts, binding agent 100 mass parts, phenolic resins 50 mass parts, polyacrylamide 20 mass parts, add in 800 mass parts solvents, wherein, binding agent adopts cyanoacrylate dripless binding agent, and solvent adopts deionized water, utilize high speed mixing equipment to mix, add in spouting plant after mixing.
Convert to the interior surface area of a certain spiral lamp tube to be processed, coating slurries required when its internal coat thickness is 15 μm are 25g, and in each work joint of spouting plant, add 28g slurries, wherein 25g is as workload, and 3g is as departure.
Clamping fluorescent tube on station, the device of fluorescent tube and the angle of horizontal plane keep the angle of 15 °, one end in fluorescent tube original paper two openings connects the mouth spray of spouting plant, other end opening then connects negative pressure device, at mouth spray, slurry is sprayed into, and fluorescent tube is rotated around Pivot Point Center on station, rotating speed is 100rpm, and intermittent negative pressure is provided in fluorescent tube, the pressure of subnormal ambient is 60 holders, its intermittent time opened and closed is 30s and 15s, and to carry out temperature at negative pressure equipment end be 50 DEG C, wind speed is the cold air distribution of 2m/s, the processing time of this process is 10min.
Be placed into by fluorescent tube on the feathering axis in hothouse and make its drying that pivots, rotating speed is 100rpm, and temperature air-supply in keeping in hothouse, wind pushing temperature is 120 DEG C, and the wind speed of air-supply is 8m/s, and after 8min, drying completes, discharging, and collect, both obtained finished product after leaving standstill cooling.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection range is defined by appending claims and equivalent thereof.
Claims (7)
1. a coating process in spiral energy saving fluorescent tube, it is characterized in that, operating procedure comprises:
1. fluorescent tube coating slurries are prepared, in the coating slurries of its preparation, the proportioning of fluorescent material and binding agent is 2:1 ~ 3:1, in addition, be also added with in these coating slurries slurries account for coating slurries total mass ratio 3 ~ 5% phenolic resins and account for coating slurries total mass ratio 1 ~ 3% polyacrylamide;
2. according to length and the size counterweight coating slurries of the fluorescent tube of required coating, the thickness that can apply in fluorescent tube to apply slurries is advisable at 10 ~ 18 μm, and slurry is added spouting plant;
3. clamping fluorescent tube on station, the device of fluorescent tube and the angle of horizontal plane keep the angle of 15 ~ 20 °, one end in fluorescent tube original paper two openings connects the mouth spray of spouting plant, other end opening then connects negative pressure device, in mouth spray whitewashing, and power saving fluorescent lamps is rotated on station around Pivot Point Center, and intermittent negative pressure is provided, its intermittent time opened and closed is 30s and 15s, and carries out cold air distribution at negative pressure equipment end, and the processing time of this process is 8 ~ 15min;
4. be placed into by power saving fluorescent lamps on the feathering axis in hothouse and make its drying that pivots, the air-supply of middle temperature, its drying time is 5 ~ 8min, to be driedly completes, discharging, and collects, to leave standstill after cooling both finished product.
2. coating process in a kind of spiral energy saving fluorescent tube according to claim 1, is characterized in that, the described step 1. middle binding agent applied in slurries slurries is acrylate copolymer binding agent or polymerized cyclic ethers derivative binding agent.
3. coating process in a kind of spiral energy saving fluorescent tube according to claim 1, is characterized in that, the described step 1. middle solvent adopted is deionized water or water-soluble solvent.
4. coating process in a kind of spiral energy saving fluorescent tube according to claim 1, is characterized in that, the pressure of the subnormal ambient of described negative pressure device is that 60 holder ~ 80 are held in the palm.
5. coating process in a kind of spiral energy saving fluorescent tube according to claim 1, it is characterized in that, the speed that described power saving fluorescent lamps then rotates around Pivot Point Center in station and hothouse is 100 ~ 150rpm.
6. coating process in a kind of spiral energy saving fluorescent tube according to claim 1, it is characterized in that, in step 3. process, the wind pushing temperature of negative pressure equipment end low temperature is 40 ~ 50 DEG C, and air-supply wind speed is 1 ~ 3m/s.
7. coating process in a kind of spiral energy saving fluorescent tube according to claim 1, is characterized in that, described power saving fluorescent lamps is in the process of hothouse drying, and wind pushing temperature is 100 ~ 120 DEG C, and the wind speed of air-supply is 4 ~ 8m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510957682.XA CN105551912A (en) | 2015-12-21 | 2015-12-21 | Internal coating technology for helical energy-saving lamp tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510957682.XA CN105551912A (en) | 2015-12-21 | 2015-12-21 | Internal coating technology for helical energy-saving lamp tube |
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| Publication Number | Publication Date |
|---|---|
| CN105551912A true CN105551912A (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510957682.XA Pending CN105551912A (en) | 2015-12-21 | 2015-12-21 | Internal coating technology for helical energy-saving lamp tube |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107051850A (en) * | 2017-04-13 | 2017-08-18 | 四川圣典节能服务有限公司 | A kind of spraying coating process of straight fluorescent tube |
Citations (8)
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|---|---|---|---|---|
| US3788846A (en) * | 1971-06-28 | 1974-01-29 | Rca Corp | Method for printing negative tolerance matrix screen structure for a cathode-ray tube |
| US4308297A (en) * | 1979-03-12 | 1981-12-29 | Mitsubishi Denki Kabushiki Kaisha | Method of manufacturing fluorescent lamps |
| CN1828804A (en) * | 2005-03-04 | 2006-09-06 | 显示器生产服务株式会社 | Fluorescent material coating apparatus and method of coating fluorescent substance using the same |
| CN101071706A (en) * | 2007-05-28 | 2007-11-14 | 杭州宇中高虹照明电器有限公司 | Rolling type powder-coating method for spiral fluorescent lamp tube and spiral lamp tube roller coating equipment |
| CN101345176A (en) * | 2008-08-18 | 2009-01-14 | 福建省永德吉集团股份有限公司 | Fast powder coating technique for light tube of screw type energy-saving lamp |
| CN102122695A (en) * | 2010-10-21 | 2011-07-13 | 电子科技大学 | Light-emitting diode and preparation method thereof |
| CN102945779A (en) * | 2012-09-14 | 2013-02-27 | 江西祥达光电集团有限公司 | Phosphor powder coating method for spiral energy-saving lamp tube |
| CN103413741A (en) * | 2013-07-26 | 2013-11-27 | 江西耀宇光电科技有限公司 | Fluorescent tube powder coating technology |
-
2015
- 2015-12-21 CN CN201510957682.XA patent/CN105551912A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3788846A (en) * | 1971-06-28 | 1974-01-29 | Rca Corp | Method for printing negative tolerance matrix screen structure for a cathode-ray tube |
| US4308297A (en) * | 1979-03-12 | 1981-12-29 | Mitsubishi Denki Kabushiki Kaisha | Method of manufacturing fluorescent lamps |
| CN1828804A (en) * | 2005-03-04 | 2006-09-06 | 显示器生产服务株式会社 | Fluorescent material coating apparatus and method of coating fluorescent substance using the same |
| CN101071706A (en) * | 2007-05-28 | 2007-11-14 | 杭州宇中高虹照明电器有限公司 | Rolling type powder-coating method for spiral fluorescent lamp tube and spiral lamp tube roller coating equipment |
| CN101345176A (en) * | 2008-08-18 | 2009-01-14 | 福建省永德吉集团股份有限公司 | Fast powder coating technique for light tube of screw type energy-saving lamp |
| CN102122695A (en) * | 2010-10-21 | 2011-07-13 | 电子科技大学 | Light-emitting diode and preparation method thereof |
| CN102945779A (en) * | 2012-09-14 | 2013-02-27 | 江西祥达光电集团有限公司 | Phosphor powder coating method for spiral energy-saving lamp tube |
| CN103413741A (en) * | 2013-07-26 | 2013-11-27 | 江西耀宇光电科技有限公司 | Fluorescent tube powder coating technology |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107051850A (en) * | 2017-04-13 | 2017-08-18 | 四川圣典节能服务有限公司 | A kind of spraying coating process of straight fluorescent tube |
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Application publication date: 20160504 |