JPS5987071A - Manufacture of fluorescent lamp - Google Patents
Manufacture of fluorescent lampInfo
- Publication number
- JPS5987071A JPS5987071A JP19702682A JP19702682A JPS5987071A JP S5987071 A JPS5987071 A JP S5987071A JP 19702682 A JP19702682 A JP 19702682A JP 19702682 A JP19702682 A JP 19702682A JP S5987071 A JPS5987071 A JP S5987071A
- Authority
- JP
- Japan
- Prior art keywords
- glass tube
- nozzle
- fluorescent lamp
- fluorescent
- phosphor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Surface Treatment Of Glass (AREA)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は螢光ランプの製造方法、詳しくは螢光ランプ用
ガラス管内面に螢光体粉末を静電的に塗装する方法に関
するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for manufacturing a fluorescent lamp, and more particularly to a method for electrostatically coating the inner surface of a glass tube for a fluorescent lamp with phosphor powder.
従来例の構成とその問題点
従来、螢光ランプ用のガラス管内面［９光体粉末を静電
的に塗装するには、ガラス管が不導体であるため、ガラ
ス管をバーナにより均一に加熱して、この電気抵抗を低
下させ、静電塗装用のノズルとバーナ間に高電圧を印加
し、ガラス管の一方の間口部からこの中にノズルを挿入
し、ガラス管を回転させ、ノズルを後退さぜなかも、荷
電した螢光体粉末をノズルの噴射孔から噴射し、この螢
光体粉末をガラス管内面に塗装するとともに、ガラス管
の他方の開口部から噴出したガラス管内面に塗装されな
かった螢光体粉末を集塵装置によって回収する方法が採
られるのか一般的である。Conventional structure and its problems Conventionally, to electrostatically coat the inner surface of a glass tube for a fluorescent lamp [9 luminous powder, the glass tube is a non-conductor, so the glass tube must be uniformly heated with a burner. Then, this electrical resistance is lowered, a high voltage is applied between the electrostatic coating nozzle and the burner, the nozzle is inserted into the glass tube through one opening, the glass tube is rotated, and the nozzle is turned on. Even in the midst of retreat, charged phosphor powder is injected from the injection hole of the nozzle, and this phosphor powder is painted on the inner surface of the glass tube, and at the same time, it is sprayed from the other opening of the glass tube and painted on the inner surface of the glass tube. A common method is to collect the unused phosphor powder using a dust collector.
ところが、この回収螢光体は黒色に着色しており、この
回収螢光体粉末を用いて静電塗装した螢光ランプでは光
束が大幅に低下するため、回収螢光体を再利用するのが
困難であった。However, this recovered phosphor is colored black, and the luminous flux of fluorescent lamps electrostatically coated using this recovered phosphor powder is significantly reduced, making it difficult to reuse the recovered phosphor. It was difficult.
発明の目的
本発明は回収螢光体の再利用を可能とし、回収螢光体を
使用しても、ランプ特性、とくに光束の低下を抑制する
ことのできる螢光ランプの製造方法を提供するものであ
る。OBJECTS OF THE INVENTION The present invention provides a method for manufacturing a fluorescent lamp that enables the reuse of recovered phosphors and suppresses deterioration in lamp characteristics, particularly luminous flux, even when recovered phosphors are used. It is.
発明の構成
本発明は螢光体粉末をノズルから噴射している間のみ集
塵装置の吸引を行なうことにより、大気中のほこり、ご
み等を集塵装置で吸引する量を減少させ、回収螢光体の
着色を弱くするようにした螢光ランプの製造方法である
。Structure of the Invention The present invention reduces the amount of dust, dirt, etc. in the atmosphere that is sucked in by the dust collector by sucking the dust collector only while the fluorescent powder is being injected from the nozzle. This is a method of manufacturing a fluorescent lamp in which the coloring of the light body is weakened.
実施例の説明
本発明は回収螢光体の着色の原因について、種々検討し
たところ、その原因は静電塗装を行なっている場所の大
気中の＋１こり等を螢光体粉末と一緒に集塵装置が吸引
するためであることが明らかとなった。DESCRIPTION OF EMBODIMENTS The present invention has investigated various causes of discoloration of recovered phosphors, and found that the cause is +1 dust, etc. in the atmosphere where electrostatic coating is performed, which is collected together with phosphor powder. It became clear that this was because the device used suction.
集塵装置による吸引は、従来静電塗装装置のインデック
ス中も含めて常時性なっていたため、大気中のほこり等
を大量に吸引することとなり、その結果回収螢光体の着
色が強くなっていた４、この回収螢光体の汚れを分析す
ると、カーボン量で２２０ｐｐｍであった。In the past, the suction by the dust collector was constant, including during the indexing of electrostatic coating equipment, which resulted in the suction of a large amount of dust, etc. from the atmosphere, and as a result, the collected phosphor became strongly colored. 4. When the recovered phosphor was analyzed for dirt, the amount of carbon was 220 ppm.
一方、ノズルから螢光体粉末を噴射している間のみ集塵
装置による吸引を行なうと、回収螢光体中に含有するカ
ーボン量は２２０ ｐｐｍから１００ｐｐｆｆｉと減少
し、回収螢光体の着色の度合も弱くなった。On the other hand, if the dust collector performs suction only while the phosphor powder is being injected from the nozzle, the amount of carbon contained in the recovered phosphor decreases from 220 ppm to 100 ppffi, and the coloring of the recovered phosphor decreases. The intensity also became weaker.
さらに、この場合、集塵装置の吸引流量を螢光体粉末噴
射エアー流量に対し４倍以上２０倍以下とすることによ
り、回収螢光体中に含有するカーボン量は１１００ｐｐ
から８０ ｐｐｍへと減少した。Furthermore, in this case, by setting the suction flow rate of the dust collector to 4 times or more and 20 times or less than the phosphor powder injection air flow rate, the amount of carbon contained in the recovered phosphor can be reduced to 1100 pp.
It decreased from 80 ppm to 80 ppm.
ここで、集塵装置の吸引流量が螢光体粉末噴射エアー流
量に対し２０倍を超えると、大気中のほこり等を多く吸
引するために、回収螢光体の着色の度合が強くなる。ま
た、これが４倍未満では螢光体粉末用の配管内に螢光体
粉末が堆積して、吸引不足となるために、静電塗装装置
の周囲に螢光体粉末が飛散して好ましくない。Here, if the suction flow rate of the dust collector exceeds 20 times the flow rate of the phosphor powder injection air, a large amount of dust, etc. in the atmosphere will be suctioned, and the degree of coloring of the recovered phosphor will become strong. Moreover, if this is less than 4 times, the phosphor powder will accumulate in the phosphor powder pipe, resulting in insufficient suction, which is undesirable as the phosphor powder will scatter around the electrostatic coating device.
さらにまた、ノズルをガラス管の一方の開口部からこの
中に挿入し、ノズルから螢光体粉末を噴射スる際に、ノ
ズル挿入側のガラス管開口部からこの内部にクリーンエ
アーを吹き込むと、カーボン量はｓ ｏ ｐｐｍから６
０ ｐｐｍへと減少した。Furthermore, if the nozzle is inserted into the glass tube from one opening, and when the phosphor powder is jetted from the nozzle, clean air is blown into the inside of the glass tube from the glass tube opening on the side where the nozzle is inserted. The amount of carbon is so ppm to 6
It decreased to 0 ppm.
かかる回収螢光体を新しい螢光体（以下未使用螢光体と
称する。）に３０重量係混入して混合螢光体を得、これ
を螢光ランプ用のガラス管内面に静電塗装して、通常の
方法のとおり螢光ランプを作製したところ、この螢光ラ
ンプは未使用螢光体を用いた螢光ランプに比して、初光
束が従来は約了チ低下していたのに対し、約２チの低下
に抑制されることが確認された。Thirty percent of the recovered phosphor was mixed into a new phosphor (hereinafter referred to as unused phosphor) to obtain a mixed phosphor, which was electrostatically coated on the inner surface of a glass tube for a fluorescent lamp. When we fabricated a fluorescent lamp using the usual method, we found that this fluorescent lamp had an initial luminous flux that was lower than that of a fluorescent lamp using unused phosphor. On the other hand, it was confirmed that the decrease was suppressed to about 2 inches.
よって、本発明の方法により、回収螢光体の使用が可能
となった。Therefore, the method of the present invention allows the use of recovered phosphors.
次に、本発明の実施例について図面を用いて説明する。Next, embodiments of the present invention will be described using the drawings.
図は本発明の方法を実施する装置の一例を示すもので、
１は螢光う／プ用のガラス管、２はこのガラス管１を加
熱するラインバーナ、３は静電塗装用のノズル、４は集
塵装置のサクション、６はこれに設けられた開閉弁、６
はクリ−ンエアーブローイング装置、７はガラス管回転
用のローラである。The figure shows an example of an apparatus for carrying out the method of the present invention.
1 is a glass tube for fluorescent/pumping, 2 is a line burner that heats this glass tube 1, 3 is a nozzle for electrostatic coating, 4 is a suction of a dust collector, and 6 is an on-off valve installed therein. ,6
7 is a clean air blowing device, and 7 is a roller for rotating the glass tube.
以上のような装置において、ラインバーナ２によりガラ
ス管１を約３００″Ｃに均一に加熱し、ノズル３をガラ
ス管１の一方の開口部からこの中に挿入し、このノズル
３を後退させながら、ノズル３の先端部から未使用螢光
体粉末に回収螢光体粉末を所定量混合した螢光体粉末を
噴射すると同時に、ラインバーナ２に２０ＫＶの高電圧
を印加し、開閉弁６を開き集塵装置により吸引し、クリ
ーンエアーブローイング装置７かもガラス管１内にクリ
ーンエアーを吹き込んで、ガラス管１内面に螢光体粉末
を静電塗装する。In the above-described apparatus, the glass tube 1 is uniformly heated to about 300"C by the line burner 2, the nozzle 3 is inserted into the glass tube 1 through one opening, and while the nozzle 3 is retreated, At the same time, a high voltage of 20 KV is applied to the line burner 2, and the on-off valve 6 is opened. It is sucked by the dust collector, clean air is blown into the glass tube 1 by the clean air blowing device 7, and the fluorescent powder is electrostatically coated on the inner surface of the glass tube 1.
そして、次のガラス管１が装置に送られて来る ・
まで集塵装置による吸引を停止する。次のガラス管１が
装置に送られると、上記と全く同じ動作が行なわれて、
ガラス管１内面に螢光体粉末が静電塗装される。Then, the next glass tube 1 is sent to the device.
Stop suction by the dust collector until When the next glass tube 1 is sent to the device, exactly the same operation as above is carried out,
Fluorescent powder is electrostatically coated on the inner surface of the glass tube 1.
以後、以上のような動作が繰り返される。Thereafter, the above operations are repeated.
このような螢光体粉末用のガラス管１を用いて通常の方
法により３０Ｗの丸形螢光ランプを作製し、初光束を測
定したところ、下表に示すとおりの結果が得られた。な
お、サンプル数は各４本である。A 30 W round fluorescent lamp was prepared by a conventional method using the glass tube 1 for fluorescent powder, and the initial luminous flux was measured, and the results shown in the table below were obtained. Note that the number of samples is four each.
上表から明らかなように、本発明の方法によって得られ
た螢光ランプは、従来の方法によって得られた螢光ラン
プに比して、初光束が大幅に向−４−していることがわ
かる。As is clear from the above table, the initial luminous flux of the fluorescent lamp obtained by the method of the present invention is significantly higher than that of the fluorescent lamp obtained by the conventional method. Recognize.
発明の詳細
な説明したように、本発明は１【ｊ］収螢）“０体を使
用しても、光束の低下を極力抑制することかでき、した
がってコストおよび省資源の面からもすぐれた螢光ラン
プの製造方法を提供することができるものである。。As described in detail, the present invention is capable of suppressing the decrease in luminous flux as much as possible even when using 1 [j] convergence) 0 bodies, and is therefore excellent in terms of cost and resource saving. A method for manufacturing a fluorescent lamp can be provided.
図は本発明の方法を実施するだめの装置の一例を示す図
である。
１・・・・・・ガラス管、２・・・・・・ラインバーナ
、３・・・・・・ノズル、４・・・・・・サクション、
５・・・・・・開閉弁、６・・・・・・クリーンエアー
ブローイング装置。The figure shows an example of an apparatus for carrying out the method of the present invention. 1...Glass tube, 2...Line burner, 3...Nozzle, 4...Suction,
5...Opening/closing valve, 6...Clean air blowing device.
Claims (1)
ルから未使用螢光体粉末に回収螢光体を混入した螢光体
粉末を噴射してこの螢光体粉末を前記ガラス管内面に静
電的に塗装するとともに、前記ガラス管内面に塗装され
なかっブζ螢光体粉末を前記ガラス管の他方の開口部の
近傍に設けた集塵装置により吸引する方法であって、前
記螢光体粉末を噴射している間のみ前記集塵装置の吸引
を行なうことを特徴とする螢光ランプの製造方法。A nozzle is inserted through one opening of the glass tube, and a phosphor powder containing recovered phosphor mixed with unused phosphor powder is injected from the nozzle to statically coat the inner surface of the glass tube. A method of electrically coating the inner surface of the glass tube and suctioning uncoated phosphor powder by a dust collector provided near the other opening of the glass tube, the method comprising: A method for manufacturing a fluorescent lamp, characterized in that suction is performed by the dust collector only while powder is being injected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19702682A JPS5987071A (en) | 1982-11-10 | 1982-11-10 | Manufacture of fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19702682A JPS5987071A (en) | 1982-11-10 | 1982-11-10 | Manufacture of fluorescent lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5987071A true JPS5987071A (en) | 1984-05-19 |
Family
ID=16367513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19702682A Pending JPS5987071A (en) | 1982-11-10 | 1982-11-10 | Manufacture of fluorescent lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5987071A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10308541B2 (en) | 2014-11-13 | 2019-06-04 | Gerresheimer Glas Gmbh | Glass forming machine particle filter, a plunger unit, a blow head, a blow head support and a glass forming machine adapted to or comprising said filter |
| CN115353292A (en) * | 2022-09-14 | 2022-11-18 | 晶研一材料科技(宜兴)有限公司 | High-precision film coating device for processing microcrystalline glass and film coating method thereof |
-
1982
- 1982-11-10 JP JP19702682A patent/JPS5987071A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10308541B2 (en) | 2014-11-13 | 2019-06-04 | Gerresheimer Glas Gmbh | Glass forming machine particle filter, a plunger unit, a blow head, a blow head support and a glass forming machine adapted to or comprising said filter |
| CN115353292A (en) * | 2022-09-14 | 2022-11-18 | 晶研一材料科技(宜兴)有限公司 | High-precision film coating device for processing microcrystalline glass and film coating method thereof |
| CN115353292B (en) * | 2022-09-14 | 2023-12-05 | 虎石新材料(宜兴)有限公司 | High-precision coating device for microcrystalline glass processing and coating method thereof |
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