JPS6148216B2 - - Google Patents
Info
- Publication number
- JPS6148216B2 JPS6148216B2 JP14170380A JP14170380A JPS6148216B2 JP S6148216 B2 JPS6148216 B2 JP S6148216B2 JP 14170380 A JP14170380 A JP 14170380A JP 14170380 A JP14170380 A JP 14170380A JP S6148216 B2 JPS6148216 B2 JP S6148216B2
- Authority
- JP
- Japan
- Prior art keywords
- quartz tube
- red
- copper
- infrared light
- colored
- 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
- 239000010453 quartz Substances 0.000 claims description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 14
- 229910052802 copper Inorganic materials 0.000 claims description 14
- 239000010949 copper Substances 0.000 claims description 14
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- 238000007872 degassing Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 6
- 239000011521 glass Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 239000011669 selenium Substances 0.000 description 2
- 229910052711 selenium Inorganic materials 0.000 description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
【発明の詳細な説明】
本発明は赤色に着色された石英管を有する赤外
線電球の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing an infrared light bulb with a red-colored quartz tube.
従来、赤色に着色されたガラス管を用いた赤外
線電球に関しては、ガラス成分の中にセレンやカ
ドミウム等を含有させてガラスを赤色に着色させ
たものが知られていた。ところが、近年、環境保
全に対する問題から、上記セレンやカドミウムに
代えて銅を着色剤として使用したガラスが赤外線
電球のガラス管材料として用いられるようになつ
てきた。すなわち、銅による赤着色の石英管を有
する赤外線電球が使用されている。 Conventionally, infrared light bulbs using red-colored glass tubes have been known, in which selenium, cadmium, or the like is contained in the glass component to color the glass red. However, in recent years, due to concerns about environmental conservation, glass using copper as a coloring agent instead of selenium or cadmium has come to be used as a glass tube material for infrared light bulbs. That is, an infrared bulb with a quartz tube colored red with copper is used.
しかしながら、このような赤外線電球において
は、製造時、石英管の内表面に微細な黒斑点が多
数発生するという現象がみられ、さらにこれを点
灯したとき、数10分後に石英管の内表面に黒化現
象が生じて、商品価値を著しく損ねてしまうとい
う問題があつた。 However, in such infrared light bulbs, there is a phenomenon in which many minute black spots appear on the inner surface of the quartz tube during manufacture, and when the light bulb is turned on, it appears on the inner surface of the quartz tube after several tens of minutes. There was a problem in that a blackening phenomenon occurred and the product value was significantly impaired.
発明者らは、かかる黒斑点の発生および早期黒
化現象について解析した結果、管引きされた赤着
色石英管の内表面に着色剤としてガラス中に含有
させた銅が斑点状に析出し、赤着色石英管を大気
中で約700℃で約１時間加熱脱ガス処理を行なう
際に析出した銅が酸化銅となり、これが黒斑点化
した状態となり、また赤外線電球の点灯によるフ
イラメントの熱で石英管の内表面に析出した銅が
溶融されて、薄い被膜が形成され、これが黒化し
て見えることが明らかとなつた。 As a result of analyzing the occurrence of such black spots and early blackening phenomenon, the inventors found that copper contained in the glass as a coloring agent was precipitated in spots on the inner surface of the drawn red colored quartz tube, resulting in a red color. When a colored quartz tube is heated and degassed in the air at about 700°C for about 1 hour, the copper that precipitates becomes copper oxide, which becomes black spots, and the quartz tube is also damaged by the heat of the filament caused by the lighting of an infrared light bulb. It became clear that the copper deposited on the inner surface was melted and a thin film was formed, which appeared to be blackened.
本発明はこのような知見に基づいて完成された
ものであり、従来の上記問題を除去した赤外線電
球の製造方法を提供するものである。 The present invention was completed based on such knowledge, and provides a method for manufacturing an infrared light bulb that eliminates the above-mentioned conventional problems.
本発明は、銅を成分の一つとして含有する赤着
色石英管を加熱脱ガス処理した後、硝酸により前
記赤着色石英管の内表面に析出した銅を溶解除去
し、次いで前記赤着色石英管を洗浄乾燥した後、
前記赤着色石英管内にフイラメントを設ける赤外
線電球の製造方法を特徴とするものである。 In the present invention, a red-colored quartz tube containing copper as one of its components is heated and degassed, and then the copper deposited on the inner surface of the red-colored quartz tube is dissolved and removed using nitric acid. After washing and drying,
The present invention is characterized by a method of manufacturing an infrared light bulb in which a filament is provided in the red colored quartz tube.
以下、本発明の方法について説明する。 The method of the present invention will be explained below.
あらかじめ加熱脱ガス処理した管内径９mm、長
さ335mmで銅を含有する赤着色石英管を、20％硝
酸で10分間煮沸したもの（Ａ）、20％弗酸液に30
分間浸したもの（Ｂ）、このような処理の全くな
いもの（Ｃ）の三種類の管体を水により洗浄し、
温度約100℃の温風を循環させて約30分間乾燥し
て各々100本得た。なお、上記Ａにおいて煮沸し
たのは処理時間を短縮するためである。そして、
各々の管体にタングステンよりなるフイラメント
を設け、通常のとおりタンタル板よりなるゲツタ
をフイラメントに取付けるなどして100V、
1050Wの赤外線電球を作製した。上記三種類の管
体を使用して得たものを各々赤外線電球Ａ，赤外
線電球Ｂおよび赤外線電球Ｃとする。 A copper-containing red-colored quartz tube with an inner diameter of 9 mm and a length of 335 mm, which had been heated and degassed in advance, was boiled in 20% nitric acid for 10 minutes (A), and then heated in 20% hydrofluoric acid solution for 30 minutes.
Three types of pipes, one soaked for a minute (B) and one without any such treatment (C), were washed with water,
They were dried for about 30 minutes by circulating warm air at a temperature of about 100°C, and 100 pieces of each were obtained. Note that the reason for boiling in A above is to shorten the processing time. and,
A filament made of tungsten is installed in each tube body, and a getter made of a tantalum plate is attached to the filament as usual.
We created a 1050W infrared light bulb. The infrared bulbs A, B, and C are obtained using the above three types of tubes, respectively.
このようにして得られた各種の赤外線電球の点
灯前の外観を観察すると、赤外線電球Ｃはほとん
どすべてに石英管の内表面に黒斑点の発生が見ら
れた。また、赤外線電球Ｂは弗酸による銅の除去
効果は一応認められたものの、石英管の内表面が
弗酸により研摩されてその内表面に新たに別の銅
が析出することとなり、約半数に黒斑点の発生が
見られた。これに対し、赤外線電球Ａは黒斑点の
発生が皆無であり、きわめて良好なものであつ
た。 When the appearance of the various infrared light bulbs thus obtained before lighting was observed, it was found that almost all of the infrared light bulbs C had black spots on the inner surface of the quartz tube. In addition, although the effect of copper removal by hydrofluoric acid on infrared bulb B was confirmed, the inner surface of the quartz tube was polished by hydrofluoric acid, and new copper was deposited on the inner surface, and about half of the copper was removed. Occurrence of black spots was observed. On the other hand, infrared light bulb A had no black spots and was extremely good.
さらに、このような赤外線電球を点灯したとこ
ろ、赤外線電球Ｂ，Ｃはいずれも点灯後約10分の
間に石英管の内表面に黒化現象を発生し、外観不
良となり、実用に供せられないことが認められ
た。一方、赤外線電球Ａは約500時間の点灯後も
黒化の発生は全くなく正常であることが認められ
た。 Furthermore, when such infrared bulbs were turned on, infrared bulbs B and C developed a blackening phenomenon on the inner surface of the quartz tube within about 10 minutes after being lit, resulting in poor appearance and the lamps were not put into practical use. It was acknowledged that there was no. On the other hand, infrared light bulb A was found to be normal with no blackening occurring even after being lit for about 500 hours.
以上説明したように、本発明は赤着色石英管の
内表面の析出銅が加熱脱ガス処理時に黒斑点化し
て早期に黒化が生じるのを確実に防止し得る赤外
線電球の製造方法を提供することができるもので
ある。 As explained above, the present invention provides a method for manufacturing an infrared light bulb that can reliably prevent copper deposits on the inner surface of a red-colored quartz tube from turning into black spots during heating and degassing treatment and causing early blackening. It is something that can be done.
Claims (1)
を加熱脱ガス処理した後、硝酸により前記赤着色
石英管の内表面に析出した銅を溶解除去し、次い
で前記赤着色石英管を洗浄乾燥した後、前記赤着
色石英管内にフイラメントを設けることを特徴と
する赤外線電球の製造方法。1. After heating and degassing a red-colored quartz tube containing copper as one of its components, the copper deposited on the inner surface of the red-colored quartz tube is dissolved and removed using nitric acid, and then the red-colored quartz tube is washed and dried. After that, a filament is provided in the red colored quartz tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14170380A JPS5765665A (en) | 1980-10-08 | 1980-10-08 | Method of producing tublar bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14170380A JPS5765665A (en) | 1980-10-08 | 1980-10-08 | Method of producing tublar bulb |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5765665A JPS5765665A (en) | 1982-04-21 |
| JPS6148216B2 true JPS6148216B2 (en) | 1986-10-23 |
Family
ID=15298229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14170380A Granted JPS5765665A (en) | 1980-10-08 | 1980-10-08 | Method of producing tublar bulb |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5765665A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57165950A (en) * | 1981-04-07 | 1982-10-13 | Tokyo Shibaura Electric Co | Incandescent bulb with colored quartz glass bubl |
-
1980
- 1980-10-08 JP JP14170380A patent/JPS5765665A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5765665A (en) | 1982-04-21 |
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