JPS591224B2 - Borosilicate glass sintered body for lamp filament holding member - Google Patents
Borosilicate glass sintered body for lamp filament holding memberInfo
- Publication number
- JPS591224B2 JPS591224B2 JP10930278A JP10930278A JPS591224B2 JP S591224 B2 JPS591224 B2 JP S591224B2 JP 10930278 A JP10930278 A JP 10930278A JP 10930278 A JP10930278 A JP 10930278A JP S591224 B2 JPS591224 B2 JP S591224B2
- Authority
- JP
- Japan
- Prior art keywords
- borosilicate glass
- sintered body
- holding member
- lamp filament
- glass sintered
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/06—Other methods of shaping glass by sintering, e.g. by cold isostatic pressing of powders and subsequent sintering, by hot pressing of powders, by sintering slurries or dispersions not undergoing a liquid phase reaction
Description
【発明の詳細な説明】
本発明はフィラメント保持部材のランプ部品に用いられ
る硼珪酸ガラス焼結体に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a borosilicate glass sintered body used in a lamp component of a filament holding member.
従来、大型ランプのフィラメント保持部材は石英ガラス
やバイコールガラスのむく棒、板を超音波加工等で切断
、孔明は加工する方法により造られていた。Conventionally, filament holding members for large lamps have been made by cutting and drilling quartz glass or Vycor glass rods or plates using ultrasonic processing.
そして、この保持部材へのフィラメントの固定にあたっ
ては、該部材の孔にフィラメントを通し加熱融着して行
なっている。The filament is fixed to the holding member by passing the filament through a hole in the member and fusing it with heat.
しかしながら、上記方法にあっては次のような問題があ
った。However, the above method has the following problems.
（１）切断、孔明けに多大な時間を要し、加工コストが
高くなる。(1) Cutting and drilling require a lot of time, increasing processing costs.
（２）融着温度が高く、作業能率が低い。(2) High fusion temperature and low work efficiency.
（３）切断、孔明は加工により造るため、形状が限定さ
れ、しかも量産性が低い。(3) Cutting and drilling are made by processing, so shapes are limited and mass production is low.
このようなことから、本発明者は上記欠点を解消するた
めに鋭意研究を重ねた結果、所定量のＳｉＯ２，Ｂ２Ｏ
３を含有するガラス粉末を焼結することによって、融解
温度の低減化を可能にして融着作業能率を向上できると
共に、融着温度を作業条件に応じて自由にコントロール
でき、さらに優れた寸法安定性を有する安価なランプ部
品用硼珪酸ガラス焼結体を見い出した。In view of this, the inventors of the present invention have conducted extensive research to eliminate the above-mentioned drawbacks, and have found that a predetermined amount of SiO2, B2O
By sintering the glass powder containing 3, it is possible to lower the melting temperature and improve the efficiency of fusion work, and the fusion temperature can be freely controlled according to the work conditions, resulting in superior dimensional stability. We have discovered an inexpensive borosilicate glass sintered body for lamp parts that has excellent properties.
すなわち、本発明のランプ部品用硼珪酸ガラス焼結体は
Ｂ２Ｏ３が２〜２０重量係含有したシリカ質ガラスから
なるものである。That is, the borosilicate glass sintered body for lamp parts of the present invention is made of siliceous glass containing 2 to 20% by weight of B2O3.
本発明の硼珪酸ガラス焼結体は上記成分のシリカ質ガラ
ス粉を焼結したものであるため、ランプ部品のフィラメ
ント細線を支持固定するような特殊な形状にあっても任
意に成形することができ、かつ粉末の収縮により電極等
と密着させることができる。Since the borosilicate glass sintered body of the present invention is made by sintering the siliceous glass powder of the above components, it can be formed into any special shape such as supporting and fixing a thin filament wire of a lamp component. Moreover, it can be brought into close contact with electrodes etc. due to the shrinkage of the powder.
本発明において硼珪酸ガラス中のＢ２Ｏ３含有量を上記
範囲に限定した理由は、その含有量を２重量係未満にす
ると、軟化温度を充分低下せしめることができず、かと
いって２０重量係を越えると軟化温度が低くなり過ぎ、
点灯時に高温下に曝らされた場合、軟化変形するよらで
ある。The reason why the B2O3 content in the borosilicate glass is limited to the above range in the present invention is that if the content is less than 2% by weight, the softening temperature cannot be sufficiently lowered, but if it exceeds 20% by weight. and the softening temperature becomes too low,
If exposed to high temperatures during lighting, it will soften and deform.
次に、本発明の詳細な説明する。Next, the present invention will be explained in detail.
実施例１〜６および比較例
５ｉＯ２９６重量係、Ｂ２０３２９重量係、Ｎａ２００
．３重量係を含む平均粒径３１ｙｒＬのガラス粉末に、
ホウ酸 末を下記表に示す割合で添加し、ポットミルに
て乾式粉砕、混合して７種の原料粉を調合した後、これ
ら原料粉にメチルセルローズ溶液を添加混練した。Examples 1 to 6 and Comparative Example 5iO296 weight ratio, B20329 weight ratio, Na200
．． Glass powder with an average particle size of 31yrL containing 3 weight coefficients,
Boric acid powder was added in the proportions shown in the table below, and after dry grinding and mixing in a pot mill to prepare seven types of raw material powders, a methyl cellulose solution was added and kneaded to these raw material powders.
次いで、これら混練物を夫夫カムプレス機により成形し
、乾燥後、予め設けておいた孔に３つのフィラメントを
挿通させ、これをサヤ詰めし、電気炉内で同表に示す温
度条件にて焼成せしめ７種のフィラメント保持部材を得
た。Next, these kneaded products are molded using a Fufu cam press machine, dried, three filaments are inserted through holes prepared in advance, and the resulting material is packed in pods and fired in an electric furnace at the temperature conditions shown in the table. Seven types of filament holding members were obtained.
しかして、本実施例１〜６および比較例の保持部材の外
観、一般物性、軟化温度及び寸法安定性を調べた。Therefore, the appearance, general physical properties, softening temperature, and dimensional stability of the holding members of Examples 1 to 6 and Comparative Example were investigated.
その結果を同表に併記した。上記より明らかな如く、本
発明により得たフィラメント保持部材は軟化温度１４０
０〜１５６０°Ｃで、従来の石英ガラス（軟化温度１７
００℃）、バイコールガラス（同温度１５８０°Ｃ）に
比して相当低いことがわかる。The results are also listed in the same table. As is clear from the above, the filament holding member obtained by the present invention has a softening temperature of 140
0 to 1560°C, conventional quartz glass (softening temperature 17
00°C), which is considerably lower than that of Vycor glass (same temperature 1580°C).
その結果、例えば本実施例４〜６の保持部材にフィラメ
ントを固定する際の作業時間は従来のバイコールガラス
に穿孔した保持部材による場合に比して約５０係程度短
縮でき、しかも作業温度も１００〜１５０°Ｃ程度低く
することができた。As a result, for example, the working time when fixing the filament to the holding members of Examples 4 to 6 can be reduced by about 50% compared to the case of using the conventional holding members made of perforated Vycor glass, and the working temperature can also be reduced to 100%. It was possible to lower the temperature by about 150°C.
これに対し、比較例のフィラメント保持部材は寸法安定
性については実施例と同等であるが、軟化温度が１４０
０°Ｃと低いために、寿命が短いものであった。On the other hand, the filament holding member of the comparative example has the same dimensional stability as the example, but the softening temperature is 140
Because the temperature was as low as 0°C, the lifespan was short.
以上詳述した如く、本発明によれば融解温度の低減化を
可能にしてフィラメントの融着作業能率を向上できると
共に、融着温度を作業条件に応じて自由にコントロール
でき、しかも寸法安定性が高く、任意の形状に製作でき
、さらに生産コストの低減化、大量生産を可能にしたフ
ィラメント保持部材のランプ部品に有用な硼珪酸ガラス
焼結体を提供できるものである。As described in detail above, according to the present invention, it is possible to reduce the melting temperature and improve the efficiency of filament fusing work, and the fusing temperature can be freely controlled according to the work conditions, and the dimensional stability is improved. It is possible to provide a borosilicate glass sintered body useful for lamp parts such as filament holding members, which can be manufactured into any desired shape, reduce production costs, and enable mass production.
Claims (1)
重量係、Ｎａ ２０ａ Ｏ，３％以下より本質的になる
ランプフィラメント保持部材用硼珪酸ガラス焼結鋺IS 10279-97 Weight section, B2032-20
Borosilicate glass sintering tool for lamp filament holding member consisting essentially of Na 20a O, 3% or less by weight
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10930278A JPS591224B2 (en) | 1978-09-06 | 1978-09-06 | Borosilicate glass sintered body for lamp filament holding member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10930278A JPS591224B2 (en) | 1978-09-06 | 1978-09-06 | Borosilicate glass sintered body for lamp filament holding member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5537437A JPS5537437A (en) | 1980-03-15 |
| JPS591224B2 true JPS591224B2 (en) | 1984-01-11 |
Family
ID=14506735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10930278A Expired JPS591224B2 (en) | 1978-09-06 | 1978-09-06 | Borosilicate glass sintered body for lamp filament holding member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS591224B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69528868T2 (en) * | 1994-08-19 | 2003-03-27 | Hitachi Ltd | Ceramic composition for circuit substrate and its manufacture |
-
1978
- 1978-09-06 JP JP10930278A patent/JPS591224B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5537437A (en) | 1980-03-15 |
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