JPH04121931A - Manufacture of high-pressure sodium lamp - Google Patents
Manufacture of high-pressure sodium lampInfo
- Publication number
- JPH04121931A JPH04121931A JP24090990A JP24090990A JPH04121931A JP H04121931 A JPH04121931 A JP H04121931A JP 24090990 A JP24090990 A JP 24090990A JP 24090990 A JP24090990 A JP 24090990A JP H04121931 A JPH04121931 A JP H04121931A
- Authority
- JP
- Japan
- Prior art keywords
- lead wire
- external lead
- titanium
- tube
- pressure sodium
- 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
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 title claims abstract description 22
- 229910052708 sodium Inorganic materials 0.000 title claims abstract description 22
- 239000011734 sodium Substances 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000010936 titanium Substances 0.000 claims abstract description 20
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 20
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000005219 brazing Methods 0.000 claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 10
- 238000002844 melting Methods 0.000 claims abstract description 5
- 230000008018 melting Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 13
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052721 tungsten Inorganic materials 0.000 abstract description 3
- 239000010937 tungsten Substances 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000000945 filler Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 description 7
- 229910052758 niobium Inorganic materials 0.000 description 4
- 239000010955 niobium Substances 0.000 description 4
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 150000003608 titanium Chemical class 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、高圧ナトリウムランプの製造方法に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for manufacturing high-pressure sodium lamps.
従来の技術
従来、この種の高圧ナトリウムランプの発光管は、透光
性の多結晶アルミナ発光管の端部に先端に電極を設けた
ニオブからなる導電管をフリットで気密に封着している
。ところが、発光管内に封入したナトリウムが点灯中に
フリットと反応して発光に寄与しなくなるという問題が
あり、とくにこの問題は点灯中のナトリウム蒸気圧が４
００〜５００Ｔｏ ｒ ｒにも達する演色本位形高圧ナ
トリウムランプにおいて著しい。Conventional technology Conventionally, the arc tube of this type of high-pressure sodium lamp consists of a conductive tube made of niobium with an electrode at the end of a translucent polycrystalline alumina arc tube, which is hermetically sealed with a frit. . However, there is a problem in that the sodium sealed in the arc tube reacts with the frit during lighting and no longer contributes to the light emission.This problem is especially true when the sodium vapor pressure during lighting is
This is remarkable in color-rendering standard high-pressure sodium lamps that reach up to 00 to 500 Torr.
かかる問題を解決するため、出願人は先に、先端に電極
棒を介して電極を保持したニオブからなる導電管をフリ
ットでセラミック発光管の両端部に気密に封着し、導電
管の内部で電極棒とニオブからなる外部リード線とをろ
う材で接合し、導電管に外部リード線を気密に封着した
発光管構造とすることにより、点灯中のナトリウムがフ
リットと直接接触するのを防止して、動程中のナトリウ
ムが発光に寄与するのを維持するようにした高圧ナトリ
ウムランプを提案している。In order to solve this problem, the applicant first sealed a conductive tube made of niobium, which held an electrode through an electrode rod at the tip, with a frit to both ends of a ceramic arc tube, and then By joining the electrode rod and the external lead wire made of niobium with a brazing material, and creating an arc tube structure in which the external lead wire is hermetically sealed to the conductive tube, sodium during lighting is prevented from coming into direct contact with the frit. They proposed a high-pressure sodium lamp that maintains the contribution of sodium during movement to luminescence.
発明が解決しようとする課題
上記において、導電管と外部リード線との封着はチタン
ろう材を使用するが、このチタンろう材を溶かす工程で
気泡が残留する問題があり、場合によってはナトリウム
リークにいたることがあった。Problems to be Solved by the Invention In the above, titanium brazing material is used to seal the conductive tube and the external lead wire, but there is a problem that air bubbles remain in the process of melting this titanium brazing material, and in some cases sodium leakage may occur. There were times when it came to this.
本発明はこのような問題を解決するためになされたもの
で、長時間にわたって発光管のナトリウムリークを防止
した高圧ナトリウムランプの製造方法を提供するもので
ある。The present invention was made to solve these problems, and provides a method for manufacturing a high-pressure sodium lamp that prevents sodium leakage from the arc tube over a long period of time.
課題を解決するための手段
本発明の高圧ナトリウムランプの製造方法は、発光管の
端部に開口部を内側にして導電管を封着し、電極に電気
的に接続され、かつ表面をあらかじめチタン金属で被覆
した外部リード線を、前記導電管の閉塞部に形成された
穴に貫通させ、チタンろう材を溶解させることによって
前記穴に前記外部リード線を封着するものである。Means for Solving the Problems The method for manufacturing a high-pressure sodium lamp of the present invention involves sealing a conductive tube to the end of the arc tube with the opening inside, electrically connected to the electrode, and coating the surface with titanium in advance. An external lead wire coated with metal is passed through a hole formed in the closed portion of the conductive tube, and the external lead wire is sealed in the hole by melting a titanium brazing material.
作用
外部リード線にあらかじめチタン金属を被覆してお（こ
とにより外部リード線の表面に存在する微小な凹凸がこ
のチタン金属で埋められて表面がなめらかにされるとと
もに、チタンろう材を加熱により溶解させて導電管に外
部リード線を封着する時、外部リード線表面のチタン金
属とろう材とが同一材質であるので、ろう材が外部リー
ド線の表面になじみやすくなる。The working external lead wire is coated with titanium metal in advance (by this, the minute irregularities existing on the surface of the external lead wire are filled with this titanium metal and the surface is smoothed, and the titanium brazing material is melted by heating. When the external lead wire is sealed to the conductive tube, since the titanium metal on the surface of the external lead wire and the brazing material are the same material, the brazing material easily blends into the surface of the external lead wire.
実施例
第１図において、多結晶アルミナからなる発光管１は、
内径８．０鵜、全長５６ｗｌ１１であって、内部に発光
物質としてのナトリウム５．３ｍｇ、緩衝ガス用金属と
しての水銀１３．７Ｎおよび始動用希ガスとしてのキセ
ノンガスが３０Ｔｏｒｒ封入されている。Embodiment In FIG. 1, the arc tube 1 made of polycrystalline alumina is
It has an inner diameter of 8.0 mm and a total length of 56 mm, and is filled with 5.3 mg of sodium as a luminescent substance, 13.7 N of mercury as a buffer gas metal, and 30 Torr of xenon gas as a starting rare gas.
そして、先端にタングステンからなる電極コイル２を保
持した直径０．８ｍのタングステンからなる電極棒３の
一端に、直径１．２ｍのモリブデンからなり、あらかじ
め表面にチタンを約５０μの厚さで被覆した外部リード
線を接合し、この外部リード線をニオブからなる直径４
１１Ｉ１１の導電管６の閉塞部６ａに形成した穴に貫通
し、チタンろう材５を溶解させることによって導電管６
の穴に外部リード線４を気密に封着している。導電管６
は発光管１０両端部に開口部６ｂを内側にしてフリット
７により気密に封着している。Then, one end of an electrode rod 3 made of tungsten with a diameter of 0.8 m and holding an electrode coil 2 made of tungsten on its tip was made of molybdenum with a diameter of 1.2 m, and the surface was coated with titanium to a thickness of about 50 μm in advance. The external lead wire is connected to a 4-diameter wire made of niobium.
The conductive tube 6 is made by penetrating the hole formed in the closed part 6a of the conductive tube 6 of 11I11 and melting the titanium brazing material 5.
The external lead wire 4 is hermetically sealed in the hole. Conductive tube 6
The arc tube 10 is hermetically sealed at both ends with frits 7 with the openings 6b facing inside.
かかる発光管を１００本製作し、チタンろう材部を観察
したところ、残留する気泡はまったくなかった。When 100 such arc tubes were manufactured and the titanium brazing material was observed, there were no remaining bubbles at all.
さらに、上記例の発光管５０本を透明の硬質外管ガラス
内に設けて高圧ナトリウムランプを製作し、入力１５０
Ｗで５．５時間点灯、０．５時間消灯のサイクルで寿命
試験をしたところ、定格寿命９０００時間を経過しても
、ナトリウムリークが発生したランプは皆無であった。Furthermore, a high-pressure sodium lamp was manufactured by installing 50 arc tubes of the above example in a transparent hard outer tube glass, and an input of 150
When a life test was conducted using W in a cycle of 5.5 hours on and 0.5 hours off, no sodium leaks occurred in any of the lamps even after a rated life of 9,000 hours.
第２図は本発明の方法によって得られた高圧ナトリウム
ランプの発光管の他の例を示す。FIG. 2 shows another example of a high-pressure sodium lamp arc tube obtained by the method of the present invention.
第２図において、第１図との共通部品には共通番号を付
している。In FIG. 2, common parts with those in FIG. 1 are given common numbers.
発明の詳細
な説明したように、本発明の方法によれば、発光管の端
部に開口部を内側にして導電管を封着し、電極に電気的
に接続され、かつ表面をあらかじめチタン金属で被覆し
たリード線を、前記導電管の閉塞部に形成された穴に貫
通させ、チタンろう材を溶解させて前記穴に前記外部リ
ード線を封着することにより、長時間にわたってナトリ
ウムリークを防止した高圧ナトリウムランプを実現する
ことができるものである。As described in detail, according to the method of the present invention, a conductive tube is sealed to the end of an arc tube with the opening inside, the conductive tube is electrically connected to an electrode, and the surface is coated with titanium metal in advance. A lead wire coated with is passed through a hole formed in the closed part of the conductive tube, and a titanium brazing material is melted to seal the external lead wire in the hole, thereby preventing sodium leakage over a long period of time. This makes it possible to realize a high-pressure sodium lamp with high pressure.
第１図は本発明の方法によって得られた高圧ナトリウム
ランプの発光管の一例を示す要部断面図、第２図は同じ
（発光管の他の例を示す要部断面図である。
１・・・・・−発光管、２・・・・・・電極コイル、３
・・・・・・電極棒、４・・・・・・外部リード線、５
・・・・・・チタンろう材、６・・・・・・導電管、６
ａ・・・・・・導電管の閉塞部、６ｂ・・・・・・導電
管の開口部、７・・・・・・フリット。
代理人の氏名 弁理士小蝦治明 ほか２名！ ≧釘ら光
？−と
２ 電ネムコイル
３ 鐙１侃圭１
４ 舛１ｆリードＡ漿
第FIG. 1 is a cross-sectional view of a main part showing an example of an arc tube of a high-pressure sodium lamp obtained by the method of the present invention, and FIG. 2 is a cross-sectional view of a main part showing another example of the same arc tube. 1.・・・・・・－Earth tube, 2・・・・・・Electrode coil, 3
... Electrode rod, 4 ... External lead wire, 5
......Titanium brazing material, 6...Conducting tube, 6
a...Closed portion of the conductive tube, 6b...Opening portion of the conductive tube, 7...Frit. Name of agent: Patent attorney Haruaki Koebi and 2 others! ≧Nail light? - and 2 Electric coil 3 Stirrup 1 Kei 1 4 Shaft 1f lead A
Claims (1)
極に電気的に接続され、かつ表面をあらかじめチタン金
属で被覆した外部リード線を、前記導電管の閉塞部に形
成された穴に貫通させ、チタンろう材を溶解させること
によって前記穴に前記外部リード線を封着することを特
徴とする高圧ナトリウムランプの製造方法。A conductive tube is sealed to the end of the arc tube with the opening inside, and an external lead wire electrically connected to the electrode and whose surface is coated with titanium metal in advance is formed in the closed part of the conductive tube. A method of manufacturing a high-pressure sodium lamp, characterized in that the external lead wire is sealed in the hole by passing the external lead wire through the hole and melting a titanium brazing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24090990A JPH04121931A (en) | 1990-09-10 | 1990-09-10 | Manufacture of high-pressure sodium lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24090990A JPH04121931A (en) | 1990-09-10 | 1990-09-10 | Manufacture of high-pressure sodium lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04121931A true JPH04121931A (en) | 1992-04-22 |
Family
ID=17066479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24090990A Pending JPH04121931A (en) | 1990-09-10 | 1990-09-10 | Manufacture of high-pressure sodium lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04121931A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007220350A (en) * | 2006-02-14 | 2007-08-30 | Stanley Electric Co Ltd | High-pressure discharge lamp |
-
1990
- 1990-09-10 JP JP24090990A patent/JPH04121931A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007220350A (en) * | 2006-02-14 | 2007-08-30 | Stanley Electric Co Ltd | High-pressure discharge lamp |
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