JPS6054894B2 - Binder glass composition for phosphor coating - Google Patents
Binder glass composition for phosphor coatingInfo
- Publication number
- JPS6054894B2 JPS6054894B2 JP5974179A JP5974179A JPS6054894B2 JP S6054894 B2 JPS6054894 B2 JP S6054894B2 JP 5974179 A JP5974179 A JP 5974179A JP 5974179 A JP5974179 A JP 5974179A JP S6054894 B2 JPS6054894 B2 JP S6054894B2
- Authority
- JP
- Japan
- Prior art keywords
- glass
- glass composition
- phosphor coating
- zno
- binder glass
- 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
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/24—Fusion seal compositions being frit compositions having non-frit additions, i.e. for use as seals between dissimilar materials, e.g. glass and metal; Glass solders
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Description
【発明の詳細な説明】
本発明は螢光灯用管ガラスに螢光体を塗布する際に、バ
インダーとして用いる低融点ガラス組成物に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a low melting point glass composition used as a binder when applying a phosphor to a tube glass for a fluorescent lamp.
従来から知られているＮａ２０を含む低融点ガラスは、
螢光体の螢光特性を著しく低下させ、また比較的溶融温
度も高く螢光管体に対し、堅固に溶着させることができ
なかつたし、その上耐水性も悪かつた。The conventionally known low melting point glass containing Na20 is
The fluorescent properties of the phosphor were significantly reduced, and the melting temperature was relatively high, making it impossible to securely weld the phosphor to the fluorescent tube, and furthermore, the water resistance was poor.
ここにおいて本発明は種々研究の結果、前記ＮａＯに代
えてＬｉ。As a result of various studies, the present invention uses Li instead of NaO.
Ｏをいることにより、従来の欠陥を解消しうることを見
出したものである。本発明のガラスは５００℃で十分に
軟化、融着すると共に、管ガラスとも熱膨脹係数が対応
しており、しかも作業をしやすくするために必要な化学
的耐久性にも優れている。ちなみに管ガラスの軟化点は
Ｓｐ５８５℃、熱膨脹係数α９９×１０−”／℃であり
、後記第１表に明示したように、熱膨脹係数も本発明の
ガラス組成物は管ガラスのそれに合致している。本発明
においては、ガラスの微粉末を螢光体粉末中に５％混合
し、水で練つて管ガラス上に塗布し、乾燥後、５００℃
ｌｈｒ焼成することにより、螢光体が管ガラス上に堅固
に接着して、性能のすぐれた蛍光灯が製造される。It has been discovered that by including O, the conventional defects can be overcome. The glass of the present invention sufficiently softens and fuses at 500° C., has a coefficient of thermal expansion corresponding to that of tube glass, and has excellent chemical durability necessary for easy work. Incidentally, the softening point of the glass tube is Sp585°C, and the coefficient of thermal expansion is α99×10-''/°C, and as shown in Table 1 below, the coefficient of thermal expansion of the glass composition of the present invention also matches that of the glass tube. In the present invention, 5% glass fine powder is mixed with phosphor powder, kneaded with water, coated on a glass tube, and dried at 500°C.
The lhr firing causes the phosphor to adhere firmly to the tube glass, producing a fluorescent lamp with excellent performance.
本発明のガラスは、モル％でＰ、０５４１〜５６、Ｂ２
０３０〜１０、Ａ］２０３４〜１２、Ｌｉ２０６〜２１
、ＺｎＯ＋Ｐｂ０１７〜４４から成るが、このうち（Ｚ
ｎＯ＋ＰｂＯ）の成分はＺｎＯまたはＰｂＯの何れかが
単体で１７〜４４モル％であつてもよく、或いはその両
者の混合物がガラス組成物に占める割合が１７〜４４モ
ル％でも差支えない。The glass of the present invention has P, 0541-56, B2 in mol%
030-10, A]2034-12, Li206-21
, ZnO+Pb017~44, among which (Z
As for the component (nO+PbO), either ZnO or PbO alone may be 17 to 44 mol %, or a mixture of both may account for 17 to 44 mol % in the glass composition.
以下本発明における各成分の限定理由について記す。The reasons for limiting each component in the present invention will be described below.
Ｐ２へは低融性を示すガラス形成酸化物であり、ガラス
化のために４１％以上必要であり、５６％を超えると軟
化点が高くなる。Ｂ、Ｏａはガラスを安定にするが、多
量になるとかえつて不安定になり１０％を超えるとガラ
ス化しにくくなる。Ｎ。ｏ。は化学的耐久性を向上させ
る必須成分であり、４％より少いと化学的耐久性（耐水
性）が悪く、１２％を超えるとガラス化しなくなる。Ｌ
ｉ。ＯおよびＺｎＯはガラスを低軟化点にする修飾酸化
物であり、Ｌｉ。Ｏは熱膨脹係数を高くし、ＺｎＯは熱
膨’脹係数を低くするため、Ｌｉ。ＯとＺｎＯの混合比
により熱膨脹係数を調節できる。管ガラスに５００℃で
ｌｈｒ融着して、室温にもどしたときに、管ガラスが割
れないようにするためにはＬｉ２０６〜２１％、Ｚｎ０
１７〜４４％の範囲とするのを可とする。なお、ＺｎＯ
はこれをＨｏに置換しうることは既に述べたとおりであ
る。進んで本発明の実施例およびその熱的、化学的性質
（耐水性）を示すと、次頁第１表のとおりである。P2 is a glass-forming oxide that exhibits low melting properties, and requires 41% or more for vitrification, and if it exceeds 56%, the softening point increases. B and Oa stabilize the glass, but if the amount is too large, it becomes unstable, and if it exceeds 10%, it becomes difficult to vitrify. N. o. is an essential component that improves chemical durability; if it is less than 4%, the chemical durability (water resistance) is poor, and if it exceeds 12%, it will not vitrify. L
i. O and ZnO are modifying oxides that give the glass a low softening point, and Li. Li because O increases the coefficient of thermal expansion and ZnO decreases the coefficient of thermal expansion. The coefficient of thermal expansion can be adjusted by adjusting the mixing ratio of O and ZnO. In order to prevent the tube glass from breaking when it is fused to the tube glass at 500℃ for lhr and returned to room temperature, Li206~21%, Zn0
A range of 17 to 44% is acceptable. In addition, ZnO
As mentioned above, can be replaced with Ho. Examples of the present invention and their thermal and chemical properties (water resistance) are shown in Table 1 on the next page.
第１表に示す実施例のガラスは、原料として高純度のＨ
３ＰＯ４、Ｈ３ＢＯ３、Ａｌ２Ｏ３，，Ｌｉ２ＣＯ３，
ＺｎＯ，ＰｂＯを用い、シリカルツボに入れ、１１５０
゜Ｃで約３紛間溶解して製造したものである。The glasses of the examples shown in Table 1 were made using high-purity H as a raw material.
3PO4, H3BO3, Al2O3,, Li2CO3,
Using ZnO and PbO, place in a silica pot and heat at 1150
It was manufactured by melting approximately 30% of the powder at ℃.
Claims (1)
〜１０、Ａｌ＿２Ｏ＿３４〜１２、Ｌｉ＿２Ｏ６〜２１
、ＺｎＯ＋ＰｂＯ（ただしＺｎＯまたはＰｂＯの何れか
単体でもよい）１７〜４４から成る螢光体塗布用バイン
ダーガラス組成物。P_2O_541-56, B_2O_30 at 1 mol%
~10, Al_2O_34~12, Li_2O6~21
, ZnO+PbO (however, either ZnO or PbO alone may be used) 17-44. A binder glass composition for coating a phosphor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5974179A JPS6054894B2 (en) | 1979-05-17 | 1979-05-17 | Binder glass composition for phosphor coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5974179A JPS6054894B2 (en) | 1979-05-17 | 1979-05-17 | Binder glass composition for phosphor coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55154344A JPS55154344A (en) | 1980-12-01 |
| JPS6054894B2 true JPS6054894B2 (en) | 1985-12-02 |
Family
ID=13121943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5974179A Expired JPS6054894B2 (en) | 1979-05-17 | 1979-05-17 | Binder glass composition for phosphor coating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6054894B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011132402A1 (en) * | 2010-04-19 | 2011-10-27 | パナソニック株式会社 | Glass composition, light source device and illumination device |
| JP6104821B2 (en) * | 2011-02-18 | 2017-03-29 | ショット アクチエンゲゼルシャフトＳｃｈｏｔｔ ＡＧ | Glass, especially glass solder or molten glass |
-
1979
- 1979-05-17 JP JP5974179A patent/JPS6054894B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55154344A (en) | 1980-12-01 |
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