CN101038839A - Method for fabricating superfine tube diameter fluorescent lamp tube by bending tube firstly and then coating powder - Google Patents
Method for fabricating superfine tube diameter fluorescent lamp tube by bending tube firstly and then coating powder Download PDFInfo
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- CN101038839A CN101038839A CN 200610024762 CN200610024762A CN101038839A CN 101038839 A CN101038839 A CN 101038839A CN 200610024762 CN200610024762 CN 200610024762 CN 200610024762 A CN200610024762 A CN 200610024762A CN 101038839 A CN101038839 A CN 101038839A
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Abstract
A method for making an ultra-fine diameter fluorescent tube in the manner of bending first and then powdering includes a step of bending the tube and a step of powdering phosphor on the inner wall of the tube. The diameter of the tube is less than 7 mm. The step of bending the tube is executed first, and then the step of powdering phosphor on the inner wall of the tube is carried out. In the step of powdering phosphor on the inner wall of the tube, phosphor plasma is filled into the tube first, and the temperature of the phosphor plasma is limited between 10 and 15 DEG C, and then hot wind whose temperature is controlled between 100 and 130 DEG C is input into the tube having been coated with phosphor. The invention can effectively improve the qualified rate, and reduce the production cost and improve the quality of the whole tube.
Description
Technical field
The present invention relates to electric light source and learn the field, relate in particular to fluorescent tube, the particularly manufacture method of fluorescent tube, dusting manufacture method behind the first bend pipe of concrete is a kind of superfine tube diameter fluorescent lamp tube.
Background technology
In the prior art, the fluorescent tube of low pressure gaseous discharge fluorescent lamp needs to carry out dusting in the course of processing handles.The fluorescent tube that caliber is greater than or equal to 7mm adopts the method for dusting behind the first bend pipe, but for the ultra-fine fluorescent tube of caliber less than 7mm, the powder slurry is after pouring into or sucking glass-tube, because the powder slurry has certain viscosity, and the crooked inflection of glass-tube, the powder slurry can't trickle naturally, simultaneously, the thin vapour lock of caliber increases, and the powder slurry can't gutter down naturally.In addition, after the fluorescent tube dusting, hang on the rotating mechanism of powder coating machine and rotate, and give wind to fluorescent tube port down by below two air draft mouths, with the solid powder of heat drying powder slurry, because the following fluorescent tube bore of 7mm is too little, so can't bio-occlusion wind, so the bisque that this conventional method is coated with does not out reach specification requirement, thereby the method for using first straight tube dusting back elbow instead.In the method for elder generation's straight tube dusting back elbow, coating roasted tube under the situation of straight tube, bend pipe then, this method need be added into some solid membrane materials in the powder slurry, as La (NO3) CaO, P2O5, B2O3 etc., logical and light decay brought certain negative effect to the light of fluorescent tube after these materials added; Especially common soft material glass will evenly be heated to more than 650 degrees centigrade and just can reach the temperature that bends, therefore the temperature of heating furnace all is controlled at about 1000 degrees centigrade, after fluorescent material enters heating furnace, activator such as the manganese in the fluorescent material are by oxidation rapidly, sodium ion in the glass escapes into the surface, move to phosphor powder layer, cause luminescent layer " melanism "; In addition, even added heavy dose of solid membrane material, shedding after the bend pipe, dry linting, powder split, the ratio of powder wrinkle is still very big, have a strong impact on the comprehensive qualified rate of system lamp, causing the waste of great material, the energy and manpower, is a major reason that influences the fluorescent lamp development of tubule footpath at present.
Summary of the invention
The purpose of this invention is to provide dusting manufacture method behind a kind of first bend pipe of superfine tube diameter fluorescent lamp tube, the dusting manufacture method will solve in the prior art caliber less than the unfavorable technical problem of dusting technique effect of the ultra-fine fluorescent tube of φ 7mm behind the first bend pipe of described this superfine tube diameter fluorescent lamp tube.
Dusting manufacture method behind the first bend pipe of this superfine tube diameter fluorescent lamp tube of the present invention, process and a process that applies fluorescent material at the inwall of described fluorescent tube of comprising a bending process fluorescent tube, the caliber of described fluorescent tube is less than 7mm, wherein, at first carry out the process of described bending process fluorescent tube, carry out the described process that applies fluorescent material at tube inner wall then, inwall at fluorescent tube applies in the process of fluorescent material, in fluorescent tube, pour into earlier phosphor slurry, and the temperature of controlling described phosphor slurry is between 10 degrees centigrade～15 degrees centigrade, send into hot blast again in the fluorescent tube that coats the powder slurry, the temperature of hot blast is between 100 degrees centigrade～130 degrees centigrade.
Further, in the step that in fluorescent tube, pours into phosphor slurry, master's level of showing up of described fluorescent tube is provided with up, and main powder slurry thickness of showing up is less than the powder slurry thickness of the main relative another side of showing up, and it is fluorescent tube face towards photographed object when using that the master of described fluorescent tube shows up.
Further, give hot blast or both-end two-way to the single-ended unidirectional beat-type of pin of the fluorescent tube that coats powder slurry in turn to hot blast.
When described fluorescent tube adopts single U type fluorescent tube, in the step that in fluorescent tube, pours into phosphor slurry, the U-shaped opening of described single U type fluorescent tube upwards is provided with, connects a powder slurry overflow pipe at the positive middle part of the U-shaped bottom of described single U type fluorescent tube.
Further, give hot blast to the unidirectional beat-type of pin both-end of single U type fluorescent tube of coating powder slurry.
Concrete, in the solid membrane process of dusting, main bisque of showing up is thin partially, and the bisque of opposite face is thick partially, this by the thickest to the thinnest be the uneven method that is coated with, help light output, can improve the actual illumination of limited light under leading to.
When being coated with helix tube, helix tube has an even downward gradient, ultra-fine glass-tube is because caliber is too thin, the powder slurry that pours into is few, gravity is little, caliber is thin, vapour lock is big, can not depend merely on gravity and powder slurry be flowed out therefore utilize external wind-force to starch at the uniform velocity that beat-type blows out to powder, adopt single-ended unidirectional beat-type to give hot blast when therefore being coated with helix tube, the powder slurry is blown out from an other end, utilize powder coating machine space environment temperature to the glass-tube external heat simultaneously, the powder slurry of being close to tube wall is just solidified equably, forms the continuously uniform bisque of a upper-thin-lower-thick.
When adopting water dusting powder slurry, hot air temperature is controlled at 100 ℃～130 ℃, and traditional dusting is to be controlled at 50 ℃～150 ℃; When adopting fourth fat dusting powder slurry, hot air temperature is controlled at 60 ℃～80 ℃, and conventional method is to be controlled at 50 ℃～60 ℃.
The present invention and prior art contrast, and its effect is actively with tangible.The present invention has improved the qualification rate of product effectively by the method for ultra-fine fluorescent tube being implemented curved back dusting earlier, and be coated with that palintrope has bisque quality problems earlier because passed through roasted tube, heat, melt brokenly on the glass-tube inwall and lost some fluorescent material, can't reclaim exposed conduit again; Elder generation bends and afterwards is coated with the underproof heat of not passing through of bisque, can reclaim; If count recovery tube, bending the qualification rate that afterwards is coated with earlier can reach more than 90%.Prior triphosphor Fluorescent Powder is the precious materials of system lamp, is coated with palintrope earlier owing to have during bend pipe 40% defectively, and adding dusting has 10%, will waste 50% altogether, does a tubes and comes out, the fluorescent material that the dusting bend pipe will two tubes; Bend earlier that afterwards to be coated be that the dusting qualification rate can only reach 85%～90%, the fluorescent material of waste only supplies 10%～15%, adds aforesaid exposed conduit and can reclaim, and afterwards is coated with technology concerning the system lamp so bend earlier, cost is much lower, and material, the energy, manpower are all saved greatly.Bend earlier afterwards be coated with the later process crocus, seal, exhaust influences little, and be coated with palintrope earlier owing to when bend pipe, and heat, the composition in the fluorescent material melts erosion more or less on the glass-tube inwall, be difficult to during crocus wipe clean and cause the leakage slowly of sealing with deairing step, its ratio is 5%～10%.Bend earlier afterwards to be coated with and be coated with the palintrope light efficiency than earlier and under equal conditions on average improve more than 30%.Elder generation bends afterwards to be coated with than earlier and is coated with the palintrope lumen depreciation under equal conditions, on average improves more than 70%.Want heat when being coated with palintrope earlier, have no idea before dusting, to add r-AL owing to bend pipe
2O
3Diaphragm is because r-AL after having added
2O
3The time glass-tube adhesive force extremely strong, during bend pipe heat after the softening point of glass, r-AL
2O
3Melted erosion, entered the glass-tube inwall, may not wipe during crocus, caused the ratio of leaking slowly up to 50%～60%; So being coated with the advanced technologies of diaphragm, formerly to be coated with palintrope passless; and the superfine tube diameter fluorescent lamp tube wall loading is big; tube wall temperature up to 150 ℃ about; be not coated with under the high temperature of sodium ion when burning-point in the diaphragm glass-tube and very easily separate out; form sodium amalgam with the mercury in the fluorescent tube; the early stage melanism of fluorescent tube not only has a strong impact on light output, and fluorescent tube is as long as burning-point two, similarly be to pick up in rubbish heap after 3,000 hours.Can adopt the above-mentioned advanced technologies that is coated with diaphragm and bend afterwards to be coated with earlier, promote the quality of whole lamp.
Purpose of the present invention, feature and advantage will be elaborated by embodiment.
Embodiment
Dusting manufacture method behind the first bend pipe of a kind of superfine tube diameter fluorescent lamp tube of the present invention, selecting a caliber for use is the fluorescent tube of 3.5mm, and the first step is utilized the bending machine bend pipe earlier, forms helical lampl, and the spiral external diameter is φ 27,4.25 circles, washes pipe and oven dry.Second step, in fluorescent tube, pour into phosphor slurry, and the temperature of controlling described phosphor slurry is between 10 degrees centigrade～15 degrees centigrade, the single-ended unidirectional hot blast of sending into continuously in the fluorescent tube that coats powder slurry again, the temperature of hot blast is between 100 degrees centigrade～130 degrees centigrade, subsequently fluorescent tube is carried out subsequent treatment, loading electrode, seal, exhaust, roasting high frequency, aging, coupling electronic transformer etc.Test parameter is as follows:
Input voltage: 230V50HZ
Input power: 3.5W
Light is logical: 110LM
Light efficiency: 31.5LM/W
Lumen depreciation: burning-point 2000 hours 〉=85%
What especially be worth to propose is, burning-point＞3000 hour, lumen depreciation are had only 70% fluorescent tube, electrode tip is cut out down, again loading electrode, seal, exhaust, roasting high frequency, join the primary electron plate again after aging, test parameter is as follows again:
Input voltage: 230V50HZ
Input power: 3.3W (fluorescent tube L shortens influence naturally owing to cut out down again)
Light is logical: 〉=100LM
Light efficiency: 30.5LM/W
As seen, this elder generation curved back dusting manufacture method is to the burning-point influence of lumen depreciation afterwards in 3000 hours=(initial light efficiency-recovery back light efficiency) the initial light efficiency of ÷=3.2%, and fluorescent material and glass-tube only reduce by 3.2% to whole lamp lumen depreciation.The curved earlier back dusting manufacture method of proof the present invention is very good.
Claims (5)
1. dusting manufacture method behind the first bend pipe of a superfine tube diameter fluorescent lamp tube, process and a process that applies fluorescent material at the inwall of described fluorescent tube of comprising a bending process fluorescent tube, the caliber of described fluorescent tube is less than 7mm, it is characterized in that: the process of at first carrying out described bending process fluorescent tube, carry out the described process that applies fluorescent material at tube inner wall then, inwall at fluorescent tube applies in the process of fluorescent material, in fluorescent tube, pour into earlier phosphor slurry, and the temperature of controlling described phosphor slurry is between 10 degrees centigrade～15 degrees centigrade, send into hot blast again in the fluorescent tube that coats the powder slurry, the temperature of hot blast is between 100 degrees centigrade～130 degrees centigrade.
2. dusting manufacture method behind the first bend pipe of superfine tube diameter fluorescent lamp tube as claimed in claim 1, it is characterized in that: in the step that in fluorescent tube, pours into phosphor slurry, master's level of showing up of described fluorescent tube is provided with up, main powder slurry thickness of showing up is less than the powder slurry thickness of the main relative another side of showing up, and it is fluorescent tube face towards photographed object when using that the master of described fluorescent tube shows up.
3. dusting manufacture method behind the first bend pipe of superfine tube diameter fluorescent lamp tube as claimed in claim 2 is characterized in that: give hot blast or both-end two-way in turn to hot blast to the single-ended unidirectional beat-type of pin of the fluorescent tube that coats the powder slurry.
4. dusting manufacture method behind the first bend pipe of superfine tube diameter fluorescent lamp tube as claimed in claim 1, it is characterized in that: described fluorescent tube is single U type fluorescent tube, in the step that in fluorescent tube, pours into phosphor slurry, the U-shaped opening of described single U type fluorescent tube upwards is provided with, and the positive middle part bottom the U-shaped of described single U type fluorescent tube connects a powder slurry overflow pipe.
5. dusting manufacture method behind the first bend pipe of superfine tube diameter fluorescent lamp tube as claimed in claim 4 is characterized in that: the unidirectional beat-type of pin both-end to single U type fluorescent tube of coating the powder slurry is given hot blast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100247620A CN101038839B (en) | 2006-03-16 | 2006-03-16 | Method for fabricating superfine tube diameter fluorescent lamp tube by bending tube firstly and then coating powder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100247620A CN101038839B (en) | 2006-03-16 | 2006-03-16 | Method for fabricating superfine tube diameter fluorescent lamp tube by bending tube firstly and then coating powder |
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| Publication Number | Publication Date |
|---|---|
| CN101038839A true CN101038839A (en) | 2007-09-19 |
| CN101038839B CN101038839B (en) | 2012-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100247620A Expired - Fee Related CN101038839B (en) | 2006-03-16 | 2006-03-16 | Method for fabricating superfine tube diameter fluorescent lamp tube by bending tube firstly and then coating powder |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887127A (en) * | 2014-03-04 | 2014-06-25 | 孙向阳 | Method for waxing and powder coating of lamp tube of fluorescent energy-saving lamp |
| CN105097382A (en) * | 2015-07-13 | 2015-11-25 | 张萍 | Production technology of glass lamp tube |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5731659A (en) * | 1996-05-13 | 1998-03-24 | General Electric Company | Fluorescent lamp with phosphor coating of multiple layers |
| US7053555B2 (en) * | 2002-11-21 | 2006-05-30 | Matsushita Electric Industrial Co., Ltd. | Arc tube, discharge lamp, and production method of such arc tube, which enables brighter illuminance |
-
2006
- 2006-03-16 CN CN2006100247620A patent/CN101038839B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887127A (en) * | 2014-03-04 | 2014-06-25 | 孙向阳 | Method for waxing and powder coating of lamp tube of fluorescent energy-saving lamp |
| CN103887127B (en) * | 2014-03-04 | 2016-07-06 | 孙向阳 | The method of tube of energy-saving fluorescent lamp applying wax dusting |
| CN105097382A (en) * | 2015-07-13 | 2015-11-25 | 张萍 | Production technology of glass lamp tube |
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| Publication number | Publication date |
|---|---|
| CN101038839B (en) | 2012-05-23 |
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Application publication date: 20070919 Assignee: Jiangsu Haomai Lighting Science & Technology Co., Ltd. Assignor: Chen Zhenliu Contract record no.: 2017320000083 Denomination of invention: Method for fabricating superfine tube diameter fluorescent lamp tube by bending tube firstly and then coating powder Granted publication date: 20120523 License type: Exclusive License Record date: 20170314 |
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Granted publication date: 20120523 Termination date: 20180316 |