KR930011239B1 - Manufacturing method of cathode - Google Patents
Manufacturing method of cathode Download PDFInfo
- Publication number
- KR930011239B1 KR930011239B1 KR1019910014540A KR910014540A KR930011239B1 KR 930011239 B1 KR930011239 B1 KR 930011239B1 KR 1019910014540 A KR1019910014540 A KR 1019910014540A KR 910014540 A KR910014540 A KR 910014540A KR 930011239 B1 KR930011239 B1 KR 930011239B1
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- KR
- South Korea
- Prior art keywords
- heater
- cathode
- welding
- insulator
- shielding member
- Prior art date
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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
- H01J1/15—Cathodes heated directly by an electric current
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- Electrolytic Production Of Metals (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
Abstract
Description
제1도는 일반적인 캐소오드의 일예를 도시한 사시도.1 is a perspective view showing an example of a general cathode.
제2도는 본 발명에 따른 직열형 캐소오드의 제조방법을 단계적으로 도시한 도면.2 is a diagram showing a step-by-step method of manufacturing a thermal cathode according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
2 : 인슐레이터 3 : 지지체2: insulator 3: support
4 : 히이터4: heater
본 발명은 직열형 캐소오드의 제조방법에 관한 것으로, 더상세하게는 직열형 히이터의 외주면에 전자방사물질을 전착시키는 캐소오드의 제조방법에 관한 것이다.The present invention relates to a method for manufacturing a direct thermal cathode, and more particularly, to a method for manufacturing a cathode for electrodepositing an electron-emitting material on the outer circumferential surface of the direct thermal heater.
통상적으로 초소형 음극선관에 사용되는 직열형 캐소오드는 제1도에 나타내 보인 바와 같이 인슐레이터에 한쌍의 지지체가 소정간격 이격되도록 설치되고 상기 지지체의 양단부는 그 외주면에 전자방사물질인 탄산염이 전착된 코일형 히이터의 양측단부가 용접고정되어 된 것이다.Typically, a series cathode cathode used in a micro-cathode tube is installed in the insulator such that a pair of supports are spaced a predetermined distance apart, and both ends of the support are coiled with carbonate, which is an electron-emitting material, on the outer circumferential surface thereof. Both ends of the mold heater are fixed by welding.
이와 같이 구성된 캐소오드(1)를 제작하기 위해서는 한쌍의 지지체(3)를 상기 인슐레이터(2)에 몰입고정하고, 상기 히이터(4)의 외주면에 전자방사물질인 탄산염을 전착한 후 그 양단부를 각 지지체의 단부에 용접하고 제작하게 되는데, 상기 지지체(3)와 히이터(4)의 용접과정에서 히이터(4)의 외주면에 전자방사물질이 도포된 상태로 용접이 이루어지게 되므로 히이티(4)의 외주면에 도포된 전자방사물질이 이물질로 작용하게 되어 이들의 용접상태가 불량하게 되는 문제점이 있었다.In order to fabricate the cathode 1 configured as described above, the pair of supports 3 are immersed and fixed in the insulator 2, and electrodeposited carbonate, which is an electron-emitting material, on the outer circumferential surface of the heater 4, and then both ends thereof. The welding is made to the end of the support, the welding of the support 3 and the heater 4 is made in the state in which the electromagnetic radiation material is applied to the outer peripheral surface of the heater 4 is made of the hitty (4) There was a problem that the electromagnetic radiation material applied to the outer circumferential surface acts as a foreign matter and their welding state is poor.
이와 같은 문제점을 해결하기 위하여 종래에는 제2도에 도시된 바와 같이 산화알루미나, 니트로 셀룰로스, 부틸아세테이트 등의 전해질로 이루어진 용매와, AL(NO3), HMO3, H2, SO4, Mg(NO3) 등의 전해질로 이루어진 전착액이 담긴 액조내에 양 전위가 인가된 전극판을 설치하고 히이터가 용접고정된 캐소오드의 지지체에 음전위를 인가한 후 상기 히이터가 전착액에 잠기도록 하여 히이터의 외주면에 전자방사물질이 전착되도록 함으로써 캐소오드를 전착하고 있으나 이는 전착액에 잠기는 히이터 지지체의 외주면까지 전자방사물질이 전착되게 되므로 지지체에 전착된 전자방사물질을 제거하여야 하는 문제점이 있었다.In order to solve such a problem, conventionally, as shown in FIG. 2, a solvent consisting of an electrolyte such as alumina oxide, nitro cellulose, butyl acetate, AL (NO 3 ), HMO 3 , H 2 , SO 4 , Mg ( A negative electrode was applied to a support of a cathode in which a positive potential was applied in a bath containing an electrodeposition liquid composed of an electrolyte such as NO 3 ), and then the heater was submerged in the electrodeposition liquid. Electrode is deposited on the outer circumferential surface of the cathode so that the cathode is electrodeposited. However, since the electron radiating material is electrodeposited to the outer circumferential surface of the heater support which is immersed in the electrodeposition solution, there is a problem of removing the electrospinning material deposited on the support.
본 발명은 상기 문제점을 해결하기 위하여 창출된 것으로서, 캐소오드의 지지체와 히이터의 용접불량 원인을 근본적으로 해결하여 생산성의 향상을 도모할 수 있으며, 이를 채용한 전자총의 열전자 방출 특성을 향상시킬 수 있는 직열형 캐소오드의 전착방법을 제공함에 그 목적이 있다.The present invention was created to solve the above problems, it is possible to improve the productivity by fundamentally solving the cause of the welding defect of the support of the cathode and the heater, which can improve the thermo-electron emission characteristics of the electron gun employing this It is an object of the present invention to provide a method for electrodepositing a series cathode.
상기 목적을 달성하기 위하여 본 발명은 인슐레이터와, 상기 인슐레이터에 몰입지지된 한쌍의 지지체와, 상기 각 지지체에 히이터의 양단부가 용접고정되며 전자방사물질이 도포된 히이터를 구비하여 된 직열형 캐소오드 제조방법에 있어서, 히이터의 외주면을 전착액 차폐부재로서 등간격으로 감싸 이를 전착하는 전착단계와, 상기 전착액 차폐부재에 의해 감싸여진 부분을 절단하여 상기 지지체에 용접하는 용접단계를 포함하는 것을 그 특징으로 한다.In order to achieve the above object, the present invention provides an insulator, a pair of supports immersed in the insulator, and a heater having both ends of the heater fixed to each support by welding and coated with an electromagnetic radiation material. The method includes an electrodeposition step of electrodepositing the outer circumferential surface of the heater at equal intervals as an electrodeposition liquid shielding member, and a welding step of cutting the portion covered by the electrodeposition liquid shielding member and welding the substrate to the support. It is done.
이하 첨부된 도면을 참조하여 본 발명에 따른 한 바람직한 실시예를 상세하게 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
먼저 제1도에 도시된 바와 같이 인슐레이터(2)와, 상기 인슐레이터(2)에 몰입 지지된 한쌍의 지지체(3)와, 상기 각 지지체(3)에 히이터(4)의 양 단부가 용접고정되며 전자방사물질이 도포된 히이터(4)를 구비하여 된 직열형 캐소오드의 제조방법은 다음과 같다.First, as shown in FIG. 1, an insulator 2, a pair of supports 3 immersed and supported by the insulator 2, and both ends of the heater 4 are welded to each of the supports 3. The manufacturing method of the direct type cathode which is equipped with the heater 4 to which the electromagnetic radiation substance was apply | coated is as follows.
즉, 제2도에 나타내 보인 바와 같이 코일형으로 권취된 히이터의 외주면을 전착액 차폐부재(11)에 의해 등간격으로 감싸고 이를 전착액이 담긴 액조(12)에 담가 히이터의 외주면에 전자방사물질을 전착하는 전착단계와 (제2a도 내지 제2c도), 상기 전착이 완료된 히이터를 감싼 전착액 차폐부재를 제거하여 전착되지 않는 부분을 절단하는 절단단계(제2 d도)와, 절단된 전자방사물질이 전차되지 않은 부분을 히이터의 양 단부를 상기 인슐레이터(2)이 각 지지체(3)에 용접하는 히이터 용접단계(제2e도)를 포함하여 된 것이다.That is, as shown in FIG. 2, the outer circumferential surface of the coil wound in a coil shape is wrapped at equal intervals by the electrodeposition liquid shielding member 11, and soaked in the liquid tank 12 containing the electrodeposition liquid, and the electromagnetic radiation material on the outer circumferential surface of the heater. Electrodeposition step of electrodepositing (degrees 2a to 2c), a cutting step (degree of the second d) to remove the electrodeposition liquid shielding member surrounding the electrode is completed electrodeposition (degrees 2d) and the cut electrons The heater welding step (FIG. 2e) which welds the both ends of a heater to the support body 3 in the part in which the radiant material was not chariot was included.
여기에서 상기 전착액 차폐부재(11)는 테이프 또는 히이터의 외주면을 등간격으로 감쌀수 있도록 고무재로 된 지그를 사용함이 바람직하다.Here, the electrodeposition liquid shielding member 11 preferably uses a jig made of a rubber material to wrap the outer peripheral surface of the tape or heater at equal intervals.
이와 같이 본 발명 직열형 캐소오드의 제조방법은 히이터의 전착시 전착액 차폐부재에 의해 감싸여진 히이터 부분을 전자방사물질이 전착되지 않게 됨으로 이부분을 절단하여 지지체와의 용접시 전자방사물질에 의한 용접불량원인을 근본적으로 해결할 수 있으며, 나아가서는 이를 채용한 전자총의 신뢰성을 향상시킬 수 있는 이점을 가진다.As described above, in the method of manufacturing a direct thermal cathode of the present invention, a portion of the heater, which is covered by the electrodeposition liquid shielding member during electrodeposition of the heater, is not electrodeposited so that the electromagnetic radiation material is not electrodeposited. It can fundamentally solve the cause of welding failure, and furthermore, it has the advantage of improving the reliability of the electron gun employing it.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019910014540A KR930011239B1 (en) | 1991-08-22 | 1991-08-22 | Manufacturing method of cathode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019910014540A KR930011239B1 (en) | 1991-08-22 | 1991-08-22 | Manufacturing method of cathode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR930005060A KR930005060A (en) | 1993-03-23 |
| KR930011239B1 true KR930011239B1 (en) | 1993-11-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019910014540A KR930011239B1 (en) | 1991-08-22 | 1991-08-22 | Manufacturing method of cathode |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR930011239B1 (en) |
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1991
- 1991-08-22 KR KR1019910014540A patent/KR930011239B1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR930005060A (en) | 1993-03-23 |
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