KR19990043956A - Electrode Material for CRT - Google Patents
Electrode Material for CRT Download PDFInfo
- Publication number
- KR19990043956A KR19990043956A KR1019970065776A KR19970065776A KR19990043956A KR 19990043956 A KR19990043956 A KR 19990043956A KR 1019970065776 A KR1019970065776 A KR 1019970065776A KR 19970065776 A KR19970065776 A KR 19970065776A KR 19990043956 A KR19990043956 A KR 19990043956A
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- KR
- South Korea
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- cathode
- electrode material
- crt
- machinability
- present
- Prior art date
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- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
본 발명은 브라운관의 개선된 전극재료를 개시한다.The present invention discloses an improved electrode material of a CRT.
종래 42Ni 강의 기계가공성과 열특성을 더욱 향상시키기 위해 본 발명에서는 Nb와 미량의 Al을 첨가하여 기계가공성과 열거동이 우수한 전극재료를 제공한다.In order to further improve the machinability and thermal properties of the conventional 42Ni steel, the present invention provides an electrode material having excellent machinability and entrained copper by adding Nb and a small amount of Al.
Description
본 발명은 브라운관의 전극재료에 관한 것으로, 특히 고열이 발생되는 캐소드(cathode) 주위의 전극 부품에 사용되기에 적합한 전극재료에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to electrode materials for CRTs, and more particularly to electrode materials suitable for use in electrode components around cathodes where high heat is generated.
도 1에는 칼라브라운관의 캐소드 주위의 구성을 도시하고 있는 바, 캐소드의 외피가 되는 세 슬리이브(sleeve; S)는 대략 W자형으로 형성된 캐소드 스트랩(cathode strap: P)의 매립(埋立)에 의해 비이드글래스(bead glass : B)에 지지된다.Fig. 1 shows the configuration around the cathode of the color-brown tube, and the three sleeves (S) serving as the outer shell of the cathode are formed by embedding a cathode strap (P) formed in an approximately W shape. It is supported by bead glass (B).
브라운관을 캐소드에 의해 열전자를 방출하여 전자빔을 형성하게 되므로 이러한 캐소드 주위는 브라운관에서 가장 높은 온도가 인가되므로 그 재질의 열 특성이 우수해야 할 뿐 아니라, 이 슬리이브(S; 즉 캐소드)의 틀어짐은 그대로 전자총의 틀어짐을 의미하므로 정확한 성형을 위해 그 기계가공성도 우수해야 한다.Since the cathode tube emits hot electrons by the cathode to form an electron beam, since the highest temperature is applied in the cathode tube around the cathode, the thermal properties of the material must be excellent, and the distortion of the sleeve (S; As it means the twist of the electron gun, the machinability should be excellent for accurate molding.
이에 따라 종래 캐소드 주변의 고온환경에 주로 사용되어온 재질은 소위 42Ni강(Ni가 41 내지 43%)으로 주로 낮은 열팽창율을 나타내도록 한 것이다. 그러나 주지하다시피 Ni은 기계가공성이 불량하여 캐소드 스트랩(P)과 같은 복잡한 형상의 성형을 하는 경우 등에는 스프링백(spring back)이 심하며, 또한 자체적인 열팽창은 낮으나 열방출등의 특성은 그다지 우수하지 못하다.Accordingly, the material that has been used mainly in the high temperature environment around the cathode is so-called 42Ni steel (Ni is 41 to 43%) to mainly exhibit a low thermal expansion rate. However, it is well known that Ni has a poor spring back when forming complex shapes such as cathode straps (P) due to poor machinability, and also has low thermal expansion but excellent heat dissipation. I can't.
이와 같은 문제점을 감안하여 본 발명의 목적은 가공성과 열특성이 향상된 전극재료를 제공하는 것이다.In view of such a problem, an object of the present invention is to provide an electrode material having improved processability and thermal characteristics.
도 1은 단일도로서 캐소드의 지지상태를 보이는 단면도이다.1 is a cross-sectional view showing a support state of a cathode in a single view.
<도면의 주요부분에 대한 부호의 설명><Description of Symbols for Main Parts of Drawings>
B : 비이드글래스(bead glass)B: bead glass
P : 캐소드 스트랩(cathode strip)P: cathode strip
S : (캐소드) 슬리이브(sleeve)S: (cathode) sleeve
상술한 목적의 달성을 위해 먼저 종래 42Ni 강의 조성을 살펴보면 이는 41∼43wt% Ni를 주성분으로 하여 0.25wt% 이하의 Co, 0.02wt% 이하의 C, 0.3wt% 이하의 Si, 0.5wt% 이하의 Mn 등을 포함하고 있다.In order to achieve the above object, first, the composition of the conventional 42Ni steel is based on 41 to 43 wt% Ni, which is 0.25 wt% or less of Co, 0.02 wt% or less of C, 0.3 wt% or less of Si, and 0.5 wt% or less of Mn. And the like.
본 발명 전극재료는 이러한 42Ni강의 조성을 기본으로 하여 1.0 내지 2.5wt%의 Nb를 포함하여 기계가공성과 열특성을 향상시키고, 더욱 바람직하기로 미량, 예를 들어 0.02wt% 이하의 Al을 첨가하여 기계가공성을 더욱 향상시키고 있다.The electrode material of the present invention includes 1.0 to 2.5 wt% of Nb based on the composition of the 42Ni steel to improve the machinability and thermal properties, and more preferably to add a small amount of Al, for example, 0.02 wt% or less. The workability is further improved.
이러한 조성에 의하면 캐소드 스트랩(P)등 캐소드 주위 부품이 더욱 정확한 형상으로 형성될 수 있을 뿐 아니라 열거동도 감소되어 고품질의 브라운관 구현이 가능하게 된다.According to this composition, the parts around the cathode such as the cathode strap P can be formed in a more accurate shape, and the enclosed copper is also reduced, thereby enabling high quality CRT.
내용없음No content
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970065776A KR19990043956A (en) | 1997-11-30 | 1997-11-30 | Electrode Material for CRT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970065776A KR19990043956A (en) | 1997-11-30 | 1997-11-30 | Electrode Material for CRT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR19990043956A true KR19990043956A (en) | 1999-06-25 |
Family
ID=66095487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019970065776A KR19990043956A (en) | 1997-11-30 | 1997-11-30 | Electrode Material for CRT |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR19990043956A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR860008585A (en) * | 1985-04-24 | 1986-11-17 | 가부시끼가이샤 히다찌세이사꾸쇼 | Color CRT |
| EP0330355A2 (en) * | 1988-02-23 | 1989-08-30 | Mitsubishi Denki Kabushiki Kaisha | Cathode for electron tube |
| KR900701027A (en) * | 1987-11-30 | 1990-08-17 | 원본미기재 | Materials and processes for the preparation of tensile masks for CRT |
| JPH04255649A (en) * | 1991-02-08 | 1992-09-10 | Toshiba Corp | Electron gun for color cathode-ray tube |
| JPH073400A (en) * | 1993-06-16 | 1995-01-06 | Daido Steel Co Ltd | Fe-ni alloy for electrode of electronic gun |
| KR19980042289A (en) * | 1996-11-12 | 1998-08-17 | 모리가즈히로 | Electron tube cathode and its manufacturing method |
-
1997
- 1997-11-30 KR KR1019970065776A patent/KR19990043956A/en not_active Application Discontinuation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR860008585A (en) * | 1985-04-24 | 1986-11-17 | 가부시끼가이샤 히다찌세이사꾸쇼 | Color CRT |
| KR900701027A (en) * | 1987-11-30 | 1990-08-17 | 원본미기재 | Materials and processes for the preparation of tensile masks for CRT |
| EP0330355A2 (en) * | 1988-02-23 | 1989-08-30 | Mitsubishi Denki Kabushiki Kaisha | Cathode for electron tube |
| JPH04255649A (en) * | 1991-02-08 | 1992-09-10 | Toshiba Corp | Electron gun for color cathode-ray tube |
| JPH073400A (en) * | 1993-06-16 | 1995-01-06 | Daido Steel Co Ltd | Fe-ni alloy for electrode of electronic gun |
| KR19980042289A (en) * | 1996-11-12 | 1998-08-17 | 모리가즈히로 | Electron tube cathode and its manufacturing method |
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| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E601 | Decision to refuse application |