KR920007172B1 - Inserting method of electron gun assembly - Google Patents

Inserting method of electron gun assembly Download PDF

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Publication number
KR920007172B1
KR920007172B1 KR1019900014269A KR900014269A KR920007172B1 KR 920007172 B1 KR920007172 B1 KR 920007172B1 KR 1019900014269 A KR1019900014269 A KR 1019900014269A KR 900014269 A KR900014269 A KR 900014269A KR 920007172 B1 KR920007172 B1 KR 920007172B1
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South Korea
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electron gun
stem
ray tube
cathode ray
neck portion
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KR1019900014269A
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Korean (ko)
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KR920007047A (en
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김충규
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삼성전관 주식회사
김정배
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    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

In the sealing method of an electron gun in the neck section of the cathode ray tube, the stem section of the electron gun is inserted in the neck section of the tube support holder, which has gradually differed diameters. The stem of electron gun is positioned at lower level than the sealing position and then the upper section of the sealed position is primarily heated and sealed to be followed by secondary sealing that is done by positioning the stem of the electron gun to the predetermined sealing position by raising the support holder after heating the neck section by a burner.

Description

음극선관의 전자총 봉입방법How to Enclose Electron Gun in Cathode Ray Tube

제1도는 종래 음극선관의 전자총 봉입방법을 가시화한 측면도.1 is a side view visualizing the electron gun encapsulation method of a conventional cathode ray tube.

제2도는 본 발명에 따른 음극선관의 전자총 봉입방법을 가시화한 측면도.2 is a side view visualizing the electron gun encapsulation method of the cathode ray tube according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : (음극선관의)네크부 11 : 전자총10: neck portion (of the cathode ray tube) 11: electron gun

11a : (전자총의)스템 12 : 지지홀더11a: Stem holder 12

12a : (지지홀더의 상부에 형성된)단차12a: step (formed on top of the support holder)

13 : 버너13: burner

본 발명은 음극선관의 봉입방법에 과한 것으로서, 더 상세하게는 대구경음극선관의 네크부에 전자총을 봉입하는 봉입방법에 관한 것이다.The present invention relates to a method for encapsulating a cathode ray tube, and more particularly, to an encapsulation method for encapsulating an electron gun in a neck portion of a large diameter cathode ray tube.

통상적으로 음극선관의 봉입공정은 형광막이 그 내면이 형성되고 새도우마스크 프레임조립체가 장찬된 패널과 그 내부에 흑연도전막이 형성된 펀넬이 봉착되어된 음극선관의 네크부에 전자총의 스템을 녹여 붙여 진공을 시켜기 위한 벨브를 만드는 것이다.In general, the cathode ray tube encapsulation process involves vacuuming the stem of the electron gun by melting the stem of the electron gun in the neck of the cathode ray tube in which the inner surface of the fluorescent film is formed, the panel filled with the shadow mask frame assembly, and the funnel formed with the graphite conductive film is sealed therein. To make a valve

제1도에는 이와같이 음극선관의 네크부(1)에 전자총(2)을 봉입하는 방법을 개략적으로 나타내보였다.FIG. 1 schematically shows a method of encapsulating the electron gun 2 in the neck portion 1 of the cathode ray tube.

이것은 대구경의 음극선관 네크부(1)에 지지홀더(3)에 의해 그 스템(2a)이 지지되는 전자총(2)을 삽입하고 상기스템(2a)과 인접되는 네크부(1)를 회전하는 버너(4)로서 가열하여 상기 네크부(1)의 일측과 스템(2a)를 융착시켜 봉입해왔다.This inserts an electron gun 2 whose stem 2a is supported by the support holder 3 into the large diameter cathode ray tube neck portion 1 and burner which rotates the neck portion 1 adjacent to the stem 2a. It heated as (4) and fused and sealed one side of the said neck part 1 and the stem 2a.

이와같은 종래의 봉입방법은 상기 네크부(1)의 직경이 작은 경우에는 적용이 가능하나 상기 네크부(1)의 직경과 스템(2a)의 직경차이가 큰 경우에는 상기 네크부(1)가 용융되면서 만곡되어 스템(2a)과 융착되게 되므로 상기 네크부(1)의 봉입두께가 상대적으로 얇아져 불량품화되는 문제점이 있었다. 특히, 음극선관의 전자총봉입부위의 약화는 음극선관의 배기공정에서 크랙이 발생되거나 폭축등의 안전사고 위험이 내재되어 있을 뿐만아니라 제품의 신뢰도가 저하되는 문제점이 있었다.This conventional encapsulation method can be applied when the diameter of the neck portion 1 is small, but when the diameter difference between the diameter of the neck portion 1 and the stem 2a is large, the neck portion 1 is There is a problem in that the sealing thickness of the neck portion 1 is relatively thin due to being curved while being melted and fused with the stem 2a. In particular, the weakening of the electron gun encapsulation portion of the cathode ray tube has a problem in that there is a risk of a safety accident such as cracking or deflating in the exhaust process of the cathode ray tube, as well as the reliability of the product.

본 발명은 음극선관 봉입부위의 두께를 네크부를 두께와 대략 동일하게 하여 제품의 신뢰성을 향상시킬수 있을 뿐만아니라 불량품을 대폭 줄일수있는 음극선관의 전자총 봉입방법을 제공함에 그 목적이 있다.An object of the present invention is to provide an electron gun encapsulation method of a cathode ray tube that can improve the reliability of the product as well as improve the reliability of the product by making the thickness of the cathode ray tube encapsulation portion approximately equal to the thickness thereof.

상기 목적을 달성하기 위하여 본 발명은 음극선관의 네크부와 전자총의 스템을 융착시켜 봉입하는 음극선 관의 전자총 봉입방법에 있어서, 그 상단부가 점차 큰 직경으로 단차진 지지홀더에 전자총의 스템을 장착하고 이를 네크부에 삽입하여 상기 전자총의 스템이 설정된 봉입위치보다 소정길히 아래 위치되도록 하고 버너로서 설정된 봉입위치 상부를 가열하여 1차봉입하며 상기 지지홀더를 상승시켜 전자총의 스템을 설정된 위치에 봉입시킨후 버너로서 네크부를 가열하여 2차 봉입하는 것을그 특징으로 한다.In order to achieve the above object, the present invention provides a method for encapsulating the electron gun of a cathode ray tube in which the neck portion of the cathode ray tube is sealed by fusion and the stem of the electron gun. Insert it into the neck part so that the stem of the electron gun is positioned below the set sealing position for a predetermined length.The upper part of the sealing position set as a burner is heated firstly and the stem of the electron gun is sealed in the set position by raising the support holder. As a burner, it is characterized by heating the neck part and enclosing it secondary.

이하 첨부된 도면을 참조하여 본 발명에 따른 한 바람직한 실시예를 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment according to the present invention.

제2도에는 본 발명에 따른 전자총봉입방법을 개략적으로 전자총 봉입장치로서 가시화 시킨 도면이다.2 is a view schematically showing the electron gun encapsulation method according to the present invention as an electron gun encapsulation device.

음극선관의 네크부(10)에 전자총(11)을 봉입하기 위해서는 먼저 중공부를 가지는 지지홀더(12)의 상단부를 대략 절두원추형으로 형성하고 이에 점차적으로 큰 직경으로 단차(12a)를 형성한다. 그리고 상기 지지홀더(12)의 상단부에 봉입하고자하는 전자총(11)의 스템(11a)를 삽입지지시킨다.In order to enclose the electron gun 11 in the neck portion 10 of the cathode ray tube, first, an upper end portion of the support holder 12 having a hollow portion is formed in a roughly truncated cone shape, and a step 12a is gradually formed in a large diameter. And the stem (11a) of the electron gun 11 to be inserted into the upper end of the support holder 12 is supported.

이 상태에서 도면에는 도시되어 있지 않으나 가대에 안착된 음극선관의 네크부(10)의 봉입설정 위치보다 소정거리 하부에 위치되도록 하고 네크부(10)의 외부로부터 회전하는 버너(13)로서 상기 봉입설정위치의 상부에서 상기 네크부(10)를 가열하여 네크부(10)가 용융되어 흘러내리므로써 상기 전자총(11)의 스템(11a)과 융착되도록하여 1차봉입한다. 이 상태에서 상기 전차총(11)의 스템(11a)을 지지하고 있는 지지홀더(12)를 상승시켜 상기 스템(11a)이 네크부(10)의 설정된 봉입위치에 위치되도록 한후 상기 상크부(10)를 버너(13)로서 가열하여 2차 봉입함으로써 음극선관의 네크부(10)에 전자총(11)의 봉입을 완료한다.In this state, although not shown in the drawing, the encapsulation is positioned below a predetermined distance from the encapsulation setting position of the neck portion 10 of the cathode ray tube seated on the mount, and is enclosed as a burner 13 rotating from the outside of the neck portion 10. The neck portion 10 is heated at the upper portion of the set position so that the neck portion 10 melts and flows down so that the neck portion 10 is fused with the stem 11a of the electron gun 11 to be firstly sealed. In this state, the support holder 12 supporting the stem 11a of the tank gun 11 is raised so that the stem 11a is positioned at a set enclosed position of the neck portion 10, and then the upper portion 10 ) Is heated as a burner 13 and sealed secondly to complete the sealing of the electron gun 11 in the neck portion 10 of the cathode ray tube.

상기와 같은 음극선관의 전자총 봉입방법은 1차 봉입시 네크부(10)가 용융되어 스템(11a)과 융착됨으로써 얇아진 봉입부위가 2차 봉입시 상기 지지홀더(12)를 소정의 높이로 상승시켜 전자총(11)의 스템(11a)을 설정된 봉입위치로 위치시킴으로써 용융되어 흘러내린 네크부(10)이 봉입부위를 두껍게 한다. 이를 더욱 상세하게 설명하면 상기 전자총의 스템(11a)을 지지하고 있는 지지홀더(12)의 상단부에는 점차적으로 큰 직 경으로 단차(12a)가 형성되어 있으므로 1차 봉입시에 용융되어 흘러내린 네크부(10)의 봉입부위는 지지홀더(12)의 단차(12a)진부위에 머물게 된다. 즉, 음극선관은 유리로 제작되어 있으므로 용융시 점성이 매우커 흘러내리지 않게 되는 것이다. 이 상태에서 상기 지지홀더(12)를 상승시키게 되면 용융되어 흘러내린 네크부(10)의 길이가 짧아지게 되며 용융된 유리의 응집력(凝潗力)에 의해 전자총(11)의 스템(11a)이 융착된 네크부, 즉 전자총 봉입부위에 두께가 두껍게 되는 것이다.In the electron gun encapsulation method of the cathode ray tube as described above, the neck portion 10 is melted at the first encapsulation and fused with the stem 11a to raise the support holder 12 to a predetermined height during the second encapsulation. By placing the stem 11a of the electron gun 11 in the set sealing position, the neck portion 10 that is melted and flowed down thickens the sealing portion. To explain this in more detail, a stepped portion 12a is formed at a larger diameter at an upper end of the support holder 12 supporting the stem 11a of the electron gun. The encapsulation portion 10 stays at the true portion of the step 12a of the support holder 12. In other words, since the cathode ray tube is made of glass, the cathode tube becomes very viscous at the time of melting so that it does not flow down. When the support holder 12 is raised in this state, the length of the neck portion 10 melted and shortened is shortened, and the stem 11a of the electron gun 11 is caused by the cohesive force of the molten glass. The thickness of the fused neck portion, that is, the electron gun encapsulation portion, becomes thick.

특히, 본 발명인의 실험에 의하면 본 발명에 따른 방법으로 음극선관의 전자총을 네크부에 봉입할 경우 양품율을 종래 20%에서 80%이상 향상시킬수 있었다.In particular, according to the experiments of the present inventors, when the electron gun of the cathode ray tube is enclosed in the neck portion by the method according to the present invention, the yield can be improved from 20% to 80%.

이와같이 본 발명 음극선관의 전자총봉입 방법은 음극선관의 내크부직경과 전자총의 스템직경 차이가 커도 용이하게 전자총을 봉입할 수 있으므로 봉입부에서의 크랙 및 두께얇음으로 인한 불량을 대폭줄일수 있으며 나아가서는 제품의 신뢰성 및 생산성의 향상을 도모할 수 있는 이점이 있다.As described above, the electron gun encapsulation method of the cathode ray tube of the present invention can easily encapsulate the electron gun even if the difference in the stem diameter of the cathode ray tube and the stem diameter of the electron gun is large, thereby greatly reducing defects due to cracks and thinness in the encapsulation portion. There is an advantage that can improve the reliability and productivity.

Claims (1)

음극선관의 네크부에 전자총의 스템을 융착시켜 봉입하는 음극선관의 전자총 봉입방법에 있어서, 그 상단부가 점차 큰 직경으로 단차진 지지홀더에 전자총의 스템부를 장착하여 네크부에 삽입하고, 상기 전자총의 스템이 설정된 네크부의 봉입위치보다 소정높이 아래 위치되도록 하고 버너로서 설정된 봉입위치의 상부를 가열하여 1차봉입광며, 상기 지지홀더를 상승시켜 전자총의 스템을 설정된 봉입위치에 위치시킨 후 버너로서 네크부를 가열하여 2차봉입하는 것을 특징으로하는 음극선관의 전자총 봉입방법.In the electron gun encapsulation method of a cathode ray tube in which a stem of an electron gun is fused and enclosed in a neck portion of a cathode ray tube, the stem of the electron gun is inserted into a neck portion by inserting the stem portion of the electron gun into a stepped support holder with a gradually larger diameter, and inserting it into the neck portion. The stem is positioned below a predetermined height of the set neck portion, and the upper portion of the set position as a burner is heated to form a primary encapsulation light. The support holder is raised to position the stem of the electron gun at the set encapsulation position, and then the neck portion as a burner. An electron gun encapsulation method of a cathode ray tube, characterized in that the secondary sealing by heating.
KR1019900014269A 1990-09-10 1990-09-10 Inserting method of electron gun assembly KR920007172B1 (en)

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KR920007172B1 true KR920007172B1 (en) 1992-08-27

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