JPS61240526A - Manufacture of fluorescent lamp - Google Patents

Abstract

PURPOSE:To make it very easy to provide silver, by coating the glass stem of an electrode with a mixed silver oxide paste comprising a silver oxide, a lead borate and a solvent, and by heating the paste to make a coating silver film. CONSTITUTION:A silver oxide, a lead borate and glycerin are mixed together to prepare a mixed silver oxide paste 44. The surface of the glass stem 34 of each electrode 3 is coated with the paste 44 and then dried at a temperature of about 100 to 150 deg.C. The electrodes 3 are put in a U-shaped inner tube 2 whole interior is an integral opening. The tube 2 is put on an end plate 5. A thin glass pipe 7 for gas evacuation is inserted into the end plate 5. An outer tube 1 is then put on the end plate 5. These members are thereafter put in a heating furnace and heated under an atmosphere of about 470 deg.C for about 5min so that the electrodes 3, the inner tube 2 the outer tube 1 are hermetically secured to the end plate 5 by frit 6, the silver oxide provided on the glass stems 34 of the electrodes is reduced to silver 4, and the lead borate is molten. The glass stems 34 are thus coated with films of the silver 4.

Description

【発明の詳細な説明】 〔産業上のＡ・１」用分野〕 この発明は螢光ランプ、特に内管と夕１＠とが水銀を含
む′ｈ！／電媒体全媒体した貞空二１１鳳臂ソｔ“昌１
″ｉの螢光ランプの光束立ち上り特性を改寵するだめの
剥造方法に関する。[Detailed Description of the Invention] [Industrial Field A.1] This invention relates to a fluorescent lamp, particularly a fluorescent lamp in which the inner tube and the tube contain mercury. /Electronic media all over the world media
This invention relates to a taxidermy method for modifying the luminous flux rise characteristics of a fluorescent lamp.

〔従来の技術〕[Conventional technology]

電球代替４目的とした小形螢光ランプとして第６図に示
すように＋’Ａ管（１１内Ｖこ′屯イＩｊｌｉ、　Ｇ（
１’ｆ内包した内管（２）を配し、この内管（２）とダ
（肯（１）と６水銀を含む放電媒体を共有しまた真空ニ
ル管構造の小形螢光ランフが有る。As shown in Figure 6, a small fluorescent lamp intended as a replacement for a light bulb is equipped with a +'A tube (11 in V,
An inner tube (2) containing 1'F is arranged, and this inner tube (2) shares a discharge medium containing mercury (1) and 6 mercury, and there is also a small fluorescent lamp having a vacuum tube structure.

この螢光ランプは、水銀の最冷部が外管（１）の内壁に
形成されるため９点灯したとき最冷部の温度上昇に時間
がかかり点灯直後の光束立ち上りが遅いという問題があ
る。This fluorescent lamp has a problem in that since the coldest part of the mercury is formed on the inner wall of the outer tube (1), it takes time for the temperature of the coldest part to rise when the lamp is turned on, and the luminous flux rises slowly immediately after the lamp is turned on.

この問題を解決するたｄ〕に水銀とアマルガムを形成す
る金属を電極（３１の近傍に設けることは公知である。In order to solve this problem, it is known to provide a metal that forms an amalgam with mercury near the electrode (31).

この−例として９社団法人照明学会より発行された照明
学会誌第６８巻第１０号の論文、〔分離内管方式型球形
螢光ランプの光束立ち上り特性〕の中で、電極（３）の
リード線０３に銀リボン（４）を取り付けることが記載
されている〇 このようにすれば、ランプ内の水銀は消灯中に銀リボン
（４）に集まりアマルガム化し９点灯直後は電極（３）
からの熱によって銀リボン（４）より直ちに水銀を放出
し外管（１）側へ拡散して行く。したがって点灯直後に
必要な水銀蒸気は主に銀リボン（４）より供給されるた
め光束立ち上り特性を改善できる。As an example of this, in the article [Luminous flux rise characteristics of a separate inner tube type spherical fluorescent lamp] published by the Illuminating Engineers of Japan, Vol. 68, No. 10, the lead of electrode (3) It is stated that the silver ribbon (4) should be attached to line 03. If you do this, the mercury in the lamp will gather on the silver ribbon (4) when it is turned off and form an amalgam, and immediately after the lamp is turned on, it will be attached to the electrode (3).
Due to the heat from the silver ribbon (4), mercury is immediately released and diffused toward the outer tube (1). Therefore, since the mercury vapor required immediately after lighting is mainly supplied from the silver ribbon (4), the luminous flux rise characteristic can be improved.

しかしながら、リード線０鴇に釧リボン（４）を取付け
るには、まず、銀板を所定の大きさに切断したり、ある
いは他の金属板に銀をメッキするなどして銀リボン（４
）を作る必要がある。さらに、リード線（９）に銀リボ
ン（４）を溶接したし巻きつけたりして。However, in order to attach the wire ribbon (4) to the lead wire 0 wire, first cut the silver plate to a predetermined size, or plate another metal plate with silver.
) needs to be created. Furthermore, I welded and wrapped a silver ribbon (4) around the lead wire (9).

その後の工程や、輸送中に脱落などしないように確実に
地相けなければならない。また、内管（２）を電極（３
）に挿入させる際も釦リボン（４）を引っかけないよう
にするなどの汗意も必要となる。It must be firmly grounded so that it does not fall off during subsequent processes or during transportation. In addition, the inner tube (2) is connected to the electrode (3).
), you will also need to be careful not to get the button ribbon (4) caught.

このため多くの製造１稈と複雑な作業が（・り非工業的
である。For this reason, many culms are manufactured and complicated operations are required (and are non-industrial).

一方、十分な改善効果を得るにｄ、銀の表面積として０
５〜１７（この時の銀の重量は約１０〜２０ｍ９）が必
要であり、貴金属である銀をリボンとして使用すること
は相当な材料費のコスト高となることも避けられなかっ
た。On the other hand, to obtain a sufficient improvement effect, d is 0 as the surface area of silver.
5 to 17 (the weight of silver at this time is about 10 to 20 m9), and using silver, which is a precious metal, for the ribbon inevitably leads to a considerable increase in material costs.

この発明にこのような製造上の欠点に［、、ｌＩ＃てな
されたもので、電極近傍にアマルガムを形成する物質を
設けるに際し、節部な作業で確実に出来るとともに、材
料の使用量も少なくて済む製造方法を提供することを目
的としたものである。This invention has been made to address these manufacturing drawbacks, and when providing an amalgam-forming substance near the electrode, it can be done reliably with a painstaking process, and the amount of material used is small. The purpose of this is to provide a manufacturing method that requires only a few steps.

〔問題点を解決するだめの手段〕[Failure to solve the problem]

酸化銀粉末、微量の硼酸鉛、溶剤とから成るペースト状
酸化銀混合物を電極のカラスステム表面に塗着させこの
後、酸化銀混合物をカロ熱して銀に還元させるとともに
、硼酸鉛も溶融させてガラスステム表面に銀の被着を形
成させるようにした。A paste-like silver oxide mixture consisting of silver oxide powder, a small amount of lead borate, and a solvent is applied to the surface of the crow stem of the electrode.Then, the silver oxide mixture is heated to reduce it to silver, and the lead borate is also melted. A silver deposit was formed on the surface of the glass stem.

〔作用〕[Effect]

通常の酸化銀は粉末状であり２粒子径も小さい。 Ordinary silver oxide is in powder form and has small particle diameters.

従って、Ｖ量的には少量でも大きな表面積を持っている
。また、金属の銀に比べて比重も軽く溶剤との濡れ性も
良（・。この酸化銀を被着剤となる硼酸鉛、溶剤ととも
にペースト状に混合し、この混合物をガラスステムに塗
布するだけで酸化銀をガラスステムに塗着できる０ さらに、この酸化銀混合物を一定温度以上に加熱させる
と酸化銀は金属の銀に還元されるとともに、硼酸鉛も溶
融して、ガラスステムへの銀の被着力を増すこととなる
。Therefore, even if the amount of V is small, it has a large surface area. In addition, it has a lower specific gravity than metal silver, and has good wettability with solvents.Simply mix this silver oxide with lead borate as an adhesive and a solvent, and apply this mixture to the glass stem. Furthermore, when this silver oxide mixture is heated above a certain temperature, the silver oxide is reduced to metallic silver, and the lead borate is also melted, causing the silver to be applied to the glass stem. This will increase adhesion.

また、加熱、還元によって酸化銀から釦になっても粒子
径の成長はあまりないので銀になっても大きな表面積を
保ったままでガラスステムに被着した状態となる。従っ
て、銀リボンなどに比べて。Further, even when silver oxide is turned into a button by heating and reduction, the particle size does not grow much, so even if it turns into silver, it remains adhered to the glass stem while maintaining a large surface area. Therefore, compared to silver ribbon etc.

重量的には少量の銀被膜であっても水銀を吸着しアマル
ガム化させるに十分な表面積を確保できる。Even with a small amount of silver coating in terms of weight, a sufficient surface area can be secured to adsorb mercury and form it into an amalgam.

〔実施例〕〔Example〕

第２図は、この発明によって作られたランプの斜視図で
あるが、このランプの製造方法について第１図を基に説
明する。FIG. 2 is a perspective view of a lamp made according to the present invention, and a method of manufacturing this lamp will be explained based on FIG. 1.

Ａ、平均粒子径０５ミクロンの酸化鋼粉末１００重量部
と、３００メツシユのフルイ全通した硼酸鉛粉末１０市
量部と、グリセリン１０重量部を混合してペースト状の
酸化銀混合物（４４）を作る。A. A paste-like silver oxide mixture (44) was prepared by mixing 100 parts by weight of oxidized steel powder with an average particle size of 05 microns, 10 parts by weight of lead borate powder passed through a 300-mesh sieve, and 10 parts by weight of glycerin. make.

Ｂ、　　Ｎ極（３）のガラスステムＣ’１４）の表面に
酸化銀混合？１（４４）を約０１５ｄの面積だけ鍮布す
る。B. Silver oxide mixed on the surface of the glass stem C'14) of the N pole (3)? 1 (44) with a brass cloth for an area of about 015d.

Ｃ６酸化銀混合物（４４）を約１００〜１５０°Ｃの温
度で乾燥する。The C6 silver oxide mixture (44) is dried at a temperature of about 100-150°C.

Ｄ、硼酸鉛を主成分としたガラスフリット（６）を塗着
したセラミックス端板（５）の所定位置に上記した酸化
銀混合物（４４）を塗着し、た電極（３）一対を挿入す
る。D. Apply the above-described silver oxide mixture (44) to a predetermined position of the ceramic end plate (5) coated with a glass frit (6) containing lead borate as a main component, and insert a pair of electrodes (3). .

次（・で、内部が一連に連通したＵ字状内管（２）を電
極（３）を内包して端板（５）に載置きせ、さらにガラ
ス製排気用細管（７）を挿入し外管（１）を載せる。Next, place the U-shaped inner tube (2), which has a continuous internal connection, on the end plate (5) with the electrode (3) inside, and then insert the glass exhaust tube (7). Place the outer tube (1).

Ｅ、この状態で、加熱炉に入れ、４ＴＯ℃の雰囲気で５
分間加熱し電極（３）ヤ内管（２）、外管（］）と端板
（５）とのガラスフリット（６）による気密固着を行う
とともに、電極（３）のガラスステム０４）に塗着され
た酸化銀混合物（４４）の銀（４）への還元と硼酸鉛の
溶融も兼ね、ガラスステムｌ３４１への銀（４）の被膜
形成を行う。E. In this state, put it in a heating furnace and heat it for 5 minutes in an atmosphere of 4TO℃.
Heating the electrode (3), the inner tube (2), the outer tube (]), and the end plate (5) are airtightly fixed using the glass frit (6), and the glass stem 04) of the electrode (3) is coated. This process also serves to reduce the deposited silver oxide mixture (44) to silver (4) and melt lead borate, thereby forming a coating of silver (4) on the glass stem 1341.

Ｆ、最後にこのランプの排気処理を行うとともに、水銀
とアルゴンガスを刺入し排気用細管（７）を封止してラ
ンプ全完成する。F. Finally, perform exhaust treatment on this lamp, and inject mercury and argon gas to seal the exhaust tube (7) to complete the lamp.

なお、この発明にお（・では電極（３）の近傍であれば
酸化銀混合物（４４）の塗着位置は第３図、第４図に示
すように適時選択できる。In the present invention, the coating position of the silver oxide mixture (44) can be appropriately selected as shown in FIGS. 3 and 4 as long as it is near the electrode (3).

また、塗着面積（塗着量）もランプのワットや。Also, the coating area (coating amount) is also related to the wattage of the lamp.

封入する水銀量などによって第５図のようにガラスステ
ム（３荀の両面に塗着させだシ、一対の電極（３）のう
ちの１個だけに塗着させるなどしても良い。Depending on the amount of mercury to be sealed, it may be applied to both sides of the glass stem (3) as shown in Figure 5, or it may be applied to only one of the pair of electrodes (3).

さらに、酸化銀混合物（４４）から銀（４）への加熱還
元はガラスフリット（６）による固着の前後の工程で行
なっても良い。Furthermore, the thermal reduction of the silver oxide mixture (44) to silver (4) may be carried out before or after fixing with the glass frit (6).

一方、この製造方法によれば外管＋１１と端板（５）を
直接溶着したようなランプにも適用できる。On the other hand, this manufacturing method can also be applied to a lamp in which the outer tube +11 and the end plate (5) are directly welded.

〔発明の効果〕〔Effect of the invention〕

この発明は１以上詳述したように電極近傍に銀を設ける
に際し、酸化銀、硼酸鉛、溶剤のペースト状酸化銀混合
物を電極のガラスステムに控着させ、この後酸化銀混合
物を加熱して釦の破膜を形成さぜるよ５にしたので、銀
を設ける作業がきわめて簡単にできる。また、釧として
の使用量が少量で済む。さらに、銀の被膜の被着力が強
固になるなどの効果もある。As described above in detail, when providing silver near the electrode, this invention involves depositing a paste-like silver oxide mixture of silver oxide, lead borate, and a solvent on the glass stem of the electrode, and then heating the silver oxide mixture. Since the rupture of the button membrane was set to 5, the process of applying silver was extremely easy. In addition, only a small amount is required for use as a chime. Furthermore, it has the effect of increasing the adhesion of the silver coating.

【図面の簡単な説明】[Brief explanation of drawings]

第１図はこの発明の一実施例を説明する工程図。 第２図はこの発明によって得られたランプの前祝図、第
３図な（・し第５図はこの発明の他の実施例を示す図、
第６図は従来技術を説明する図である。 これ等図において、（１）は外管、（２）は内管、（３
）は電極、（４）は銀、（５１は端板、（６）はガラス
フリット２（至）は電極リード線、…）はガラスステム
、　　（４４）は酸化銀混合物である。 なお、各図中同一符号は同一または相当部分を示す。FIG. 1 is a process diagram illustrating an embodiment of the present invention. FIG. 2 is a preliminary drawing of a lamp obtained according to the present invention, FIG. 3 is a diagram showing another embodiment of the present invention, and FIG.
FIG. 6 is a diagram explaining the prior art. In these figures, (1) is the outer tube, (2) is the inner tube, and (3
) is the electrode, (4) is silver, (51 is the end plate, (6) is the glass frit 2 (to) the electrode lead wire, ...) is the glass stem, and (44) is the silver oxide mixture. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (3)

【特許請求の範囲】[Claims] （１）電極を有する内管を外管内に配し、かつ、内管と
外管とが水銀を含む放電媒体を共有した真空二重管構造
の螢光ランプ、電極近傍にアマルガム形成物質を設ける
に際し、酸化銀、硼酸鉛、溶剤のペースト状酸化銀混合
物を電極近傍に塗着させ、この後上記酸化銀混合物を加
熱して銀の被膜を形成したことを特徴とする螢光ランプ
の製造方法。(1) A fluorescent lamp with a vacuum double tube structure in which an inner tube with an electrode is disposed within an outer tube, and the inner tube and outer tube share a discharge medium containing mercury, and an amalgam-forming substance is provided near the electrode. A method for manufacturing a fluorescent lamp, characterized in that a paste-like silver oxide mixture of silver oxide, lead borate, and a solvent is applied near the electrode, and then the silver oxide mixture is heated to form a silver film. . （２）電極を、ガラスステムに電極リード線を植設した
構造としたとき、酸化銀混合物をガラスステムに被着し
たことを特徴とする特許請求の範囲第１項記載の螢光ラ
ンプの製造方法。(2) Manufacturing a fluorescent lamp according to claim 1, wherein the electrode has a structure in which an electrode lead wire is embedded in a glass stem, and a silver oxide mixture is adhered to the glass stem. Method. （３）螢光ランプを、Ｕ字状内管を一端が開口の外管で
囲むとともに、この外管の開口と内管端部とをガラスフ
リットを介して共通の端板で閉塞した構造としたとき、
ガラスフリットの加熱が酸化銀混合物の加熱を兼ねてい
ることを特徴とする特許請求の範囲第１項または第２項
記載の螢光ランプの製造方法。(3) The fluorescent lamp has a structure in which a U-shaped inner tube is surrounded by an outer tube with an open end, and the opening of the outer tube and the end of the inner tube are closed with a common end plate via a glass frit. When I did,
3. The method of manufacturing a fluorescent lamp according to claim 1, wherein the heating of the glass frit also serves as heating of the silver oxide mixture.