KR920006147Y1 - Radiated type cathode - Google Patents
Radiated type cathode Download PDFInfo
- Publication number
- KR920006147Y1 KR920006147Y1 KR2019900013120U KR900013120U KR920006147Y1 KR 920006147 Y1 KR920006147 Y1 KR 920006147Y1 KR 2019900013120 U KR2019900013120 U KR 2019900013120U KR 900013120 U KR900013120 U KR 900013120U KR 920006147 Y1 KR920006147 Y1 KR 920006147Y1
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- South Korea
- Prior art keywords
- sleeve
- cap
- cathode
- heat treatment
- type cathode
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/04—Cathodes
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- Solid Thermionic Cathode (AREA)
Abstract
내용 없음.No content.
Description
제1도는 종래의 방열형음극의 구조를 나타낸 부분단면도.1 is a partial cross-sectional view showing the structure of a conventional heat radiation cathode.
제2도는 이 고안에 따른 방열형음극의 부분단면도.2 is a partial cross-sectional view of a heat dissipating cathode according to the present invention.
제3도는 제2도에서의 슬리브의 일부절개사시도.3 is a partial cutaway perspective view of the sleeve in FIG.
제4도는 열처리 방식의 초기에미션 특성파형도이다.4 is an initial emission characteristic waveform diagram of the heat treatment method.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1, 10 : 슬리브 2 : 캡1, 10: sleeve 2: cap
3 : 탄산염 4 : 히터3: carbonate 4: heater
11 : 단턱부11: step
이 고안은 음극선관의 전자총등에서 전자빔을 방사하는 음극에 관한 것으로서, 보다상세하게는 슬리브의 구조를 개선하여 열처리 및 가공이 용이하도록 한 방열형음극에 관한 것이다.The present invention relates to a cathode that emits an electron beam from an electron gun of a cathode ray tube, and more particularly, to a heat dissipating cathode that has improved the structure of a sleeve to facilitate heat treatment and processing.
종래의 방열형음극은 제1도에서와 같이히터(4)를 내부에 설치한 슬리브(1)의 상부의 캡(2)을 캡(2)의 상면에 탄산염 스프레이를 행하여 탄산염(3)을 형성하는 것으로 되었다. 이러한 음극의 열처리가공에는 드라이(Dry)열처리와 웨트(Wet)열처리가 있는데 드라이열처리의 경우에는 상기 슬리브(1)의 상단부에 캡(2)을 씌운후 슬리브(1)와 캡(2)을 용접결합하고, 캡(2)을 씌운후 슬리브(1)에 은극의 지지를 위한 리본과 홀더(도시치않음)를 용접하고, 수소분위기에서 드라이 열처리를 행한다. 이 방법으로 제조된 음극은 용접작업이 용이하며 제조가 편리하나 음극의 주요특성인 속동성이 매우 저하되는 결점이 있게된다.In the conventional heat dissipation type cathode, a carbonate (3) is formed by spraying carbonate on the upper surface of the cap (2) of the upper cap (2) of the sleeve (1) with the heater (4) installed therein as shown in FIG. It became. In the heat treatment of the cathode, there is a dry heat treatment and a wet heat treatment. In the dry heat treatment, the cap 1 is placed on the upper end of the sleeve 1, and the sleeve 1 and the cap 2 are welded. After joining, the cap 2 is covered, the ribbon 1 and the holder (not shown) for supporting the silver electrode are welded to the sleeve 1, and dry heat treatment is performed in a hydrogen atmosphere. The cathode manufactured by this method is easy to weld and is easy to manufacture, but has the drawback that the speed, which is the main characteristic of the cathode, is very low.
한편, 이 드라이열처리의 단점을 보완하기 위해 속동성이 좋도록 흑화처리를 하는 웨트 열처리를 행하는공정의 일 실시예로는 상기 슬리브(1)의 상단에 캡(2)을 씌워 용접을 행한 후 슬리브(1)에 리본과 홀더를 용접하고, H2O분위기에서 웨트 열처리를 하여 강제산화시켜서 상기 슬리브(1)와 캡(2)의 결합체에 흑화처리를 하는 제조방법이 있는테, 이는 드라이열처리에 비해 속동성은 매우 향상되게 되나 캡(2)의 표면에도 흑화처리가되어 탄산엽스프레이를 행할 때 상기 캡(2)상면부에 탄산염(3)이 잘 도포되지 않게 되었고 이로 인해 전자총의사용시 탄산염(3)이 쉽게 증발하거나 박리되어 수명이 짧아지는 결점이 있게 되었다.On the other hand, in order to compensate for the disadvantage of the dry heat treatment, the wet heat treatment for blackening treatment to improve the speed is performed as an embodiment of the cap 2 on the upper end of the sleeve 1 to perform welding after the sleeve There is a manufacturing method of welding the ribbon and the holder to (1), subjecting the combination of the sleeve (1) and the cap (2) to blackening by wet oxidation by wet heat treatment in an H 2 O atmosphere. Compared to the rapidity, but the blackening treatment is also applied to the surface of the cap (2), the carbonate (3) is hardly applied to the upper surface of the cap (2) when performing the carbonate leaf spray, which causes the carbonate ( 3) is easily evaporated or peeled off, resulting in a shorter lifespan.
제4도는 상기 드라이열처리와 웨트열처리를 행한 음극들의 에미션 특성을 나타낸 것으로 웨트 열처리시 속동성이 크게 향상됨을 알수 있다.4 shows the emission characteristics of the cathodes subjected to the dry heat treatment and the wet heat treatment, and it can be seen that the fastness during wet heat treatment is greatly improved.
한편, 상기 슬리브(1)를 흑화처리한 후 캠(2)과 용접시키는 방법도 있다. 이경우에는 슬리브(1) 표면의 흑화에 의해 캡(2)과의 용접이 잘되지 않게되어 레이저용접을 행하였는데, 상기 내측에 위치하는 슬리브(l)의 두께가 캡(2)의 두께에 비해 매우 얇게 형성되므로 내측의 슬리브(1)가 레이저빔에 의해 녹게되어 용접이 잘 행해지지 않게 되었고 이로인해 음극의 불량률이 크게 되어 생산성이 저하되는 폐단이 있게 되있다.On the other hand, there is also a method in which the sleeve 1 is blackened and then welded with the cam 2. In this case, the welding with the cap 2 is difficult due to the blackening of the surface of the sleeve 1, and laser welding is performed. However, the thickness of the sleeve 1 located inside of the sleeve 1 is very large compared to the thickness of the cap 2. Since the inner sleeve 1 is melted by the laser beam because it is thinly formed, the welding is difficult to be performed, and thus, the defect rate of the cathode is increased, resulting in a closed end in which productivity is lowered.
이 고안은 이와같은 문제를 해결하기 위한 것으로서, 이 고안의 목적은 슬리브와 캡의 결합구조를 개선하여 속동성이 향상되게 흑화처리한 슬리브와, 탄산염도포가 양호하도록 흑화처리를 하지않은 캡과의 레이저용접시용접불량에 의한 재료의 손실과 생산성저하가 없도록 한 방열형음극을 제공하는 데 있다.This invention is to solve this problem, and the object of this invention is to improve the coupling structure of the sleeve and the cap, and the blackening treatment to improve the speed and the cap without the blackening treatment so that the carbonate coating is good The present invention provides a heat dissipating cathode in which there is no loss of material and a decrease in productivity due to poor welding during laser welding.
이와같은 이 고안은, 웨트열처리를 행하며 내부에 히터가 설치되는 슬리브와 이 슬리브상단부에 용접결합되고 상면에 탄산염이 도포되는 캡을 구비하여서 된 방열형음극에 있어서, 상기 슬리브의 상단부를 확장시켜서된 닥터부 내측에 캡이 용접결합된 방열형음극에 그 특징이 있다.In this design, in the heat dissipation type cathode having wet heat treatment and a sleeve having a heater installed therein, and a cap welded to the upper end of the sleeve and coated with carbonate on the upper surface, the doctor extending the upper end of the sleeve The heat dissipating cathode in which the cap is welded to the inside of the inside is characterized by its characteristics.
이하, 이 고안의 실시예를 첨부도면에 의해 상세히 설명한다.Hereinafter, embodiments of this invention will be described in detail by the accompanying drawings.
제2도 및 제3도는 이 고안의 실시예를 나타낸 부분절개단면도와 슬리브의 일부를 절개한 사시도로서, 슬리브(10)의 상단부를 확장시켜 그 내측에 고리형상의 단턱부(11)를 형성시키며 이 닥턱부(11)의 직경은 캠(2)의 외주연의 직경과 거의 동일하게 되도록 형성한다. 이후 상기 슬리브(10)를 H2O분위기에서 웨트열처리를 하여 흑화시키며, 이 흑화처리된 슬리브(10)의 단턱부(11)에 주지의 캡(2)을 삽입한 후 레이저 용접을 행한다.2 and 3 are a partially cutaway cross-sectional view showing an embodiment of the present invention and a perspective view of a portion of the sleeve, in which an upper end portion of the sleeve 10 is extended to form an annular stepped portion 11 therein. The diameter of the shut-up part 11 is formed so that it may become substantially the same as the diameter of the outer periphery of the cam 2. Thereafter, the sleeve 10 is blackened by wet heat treatment in an H 2 O atmosphere. A well-known cap 2 is inserted into the stepped portion 11 of the blackened sleeve 10 and then laser welded.
이때에 상기 두께가 얇은 슬리브(10)가 두께가 두꺼운 (일예로 0. 4t) 캡(2)의 외부로 위치되므로 레이저용접으로 충분히 접합되게 된다.At this time, since the thin sleeve 10 is positioned outside the thick cap 2 (for example, 0.4 t), the thin sleeve 10 is sufficiently bonded by laser welding.
이상에서와 같이 이 고안은 슬리브와 상단부를 확장시켜서된 단턱부 내측에 캡을 용접시켜서 된 것이므로 슬리브만이 흑화처리되어 슬리브의 열흡수성이 때추 양호하게 되고 속동성이 크게 향상되며 초기 에미션특성이 향상되고, 캡상면에 탄사나염스프레이를 행하면 탄산염의 도포가 매우 양호하게 되어 음극의 수명이 길게되고, 슬리브와 캡의 용접이 용이하게 되므로 제품의 불량률이 극소로되어 생산성이 크게 향상되는 효과를 갖게된다.As described above, this design is made by welding the cap to the inside of the stepped portion by extending the sleeve and the upper end, so that only the sleeve is blackened, so that the heat absorption of the sleeve is good, the speed is greatly improved, and the initial emission characteristics are improved. When the carbon fiber spray is applied to the cap top surface, the application of carbonate is very good, the life of the cathode is extended, and the welding of the sleeve and the cap is easy, so that the defective rate of the product is minimized and the productivity is greatly improved. do.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019900013120U KR920006147Y1 (en) | 1990-08-29 | 1990-08-29 | Radiated type cathode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019900013120U KR920006147Y1 (en) | 1990-08-29 | 1990-08-29 | Radiated type cathode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR920005259U KR920005259U (en) | 1992-03-26 |
| KR920006147Y1 true KR920006147Y1 (en) | 1992-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019900013120U KR920006147Y1 (en) | 1990-08-29 | 1990-08-29 | Radiated type cathode |
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| Country | Link |
|---|---|
| KR (1) | KR920006147Y1 (en) |
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1990
- 1990-08-29 KR KR2019900013120U patent/KR920006147Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR920005259U (en) | 1992-03-26 |
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