KR950010023B1 - Panel glass manufacture method for color brown tube - Google Patents

Panel glass manufacture method for color brown tube Download PDF

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Publication number
KR950010023B1
KR950010023B1 KR1019870013499A KR870013499A KR950010023B1 KR 950010023 B1 KR950010023 B1 KR 950010023B1 KR 1019870013499 A KR1019870013499 A KR 1019870013499A KR 870013499 A KR870013499 A KR 870013499A KR 950010023 B1 KR950010023 B1 KR 950010023B1
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South Korea
Prior art keywords
polishing
brown tube
inclined surface
color
inclination angle
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KR1019870013499A
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Korean (ko)
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KR890008883A (en
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박성준
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삼성코닝주식회사
한형수
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Publication of KR950010023B1 publication Critical patent/KR950010023B1/en

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    • 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
    • H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

The method comprises the step of forming one part of an opening side as a slope part of a predetermined inclination angle, the part of the opening side being used as one side of a flange part of the front glass.

Description

칼라브라운관용 전면유리의 성형방법Forming Method of Front Glass for Color Brown Tube

제1도는 본 발명의 전면유리 성형방법을 나타내는 단면도.1 is a cross-sectional view showing a windshield forming method of the present invention.

제2도는 제1도의 (가)부 확대도.2 is an enlarged view of part (a) of FIG.

제3도는 전면유리와 후면유리의 봉합상태를 나타내기 위한 예시도.3 is an exemplary view for showing the sealing state of the front glass and the rear glass.

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

1 : 플런저 2 : 쉘1: plunger 2: shell

3 : 하부금형 4 : 전면유리3: lower mold 4: front glass

5 : 개구단면 6 : 경사면5: opening cross section 6: inclined surface

7 : 플레이트부 8 : 플랜지부7: plate portion 8: flange portion

본 발명은 칼라브라운관용 전면유리의 성형방법에 관한 것으로, 특히 연마제 및 연마시간 감소와 봉합부의 강도를 증가시킬 수 있도록 된 칼라브라운관용 전면유리의 성형방법에 관한 것이다.The present invention relates to a shaping method for the front glass for color brown tube, and more particularly, to a shaping method for the front glass for color brown tube which can reduce the abrasive and polishing time and increase the strength of the seam.

일반적으로 칼라브라운관은 영상면을 갖는 전면유리와, 이 전면유리 후방에 깔때기 모양으로 연속되는 후면유리와, 전자총이 내설되는 네크로 구성되며, 이들 구성체 각각은 별도의 공정을 통하여 생산되고, 이를 후리트유리로써 서로 융착시켜 하나의 칼라브라운관을 완성하게 된다.In general, the color CRT consists of a front glass having an image surface, a rear glass continuous in a funnel shape behind the front glass, and a neck in which an electron gun is installed. Each of these components is produced through a separate process. The glass is fused to each other to complete one color-brown tube.

여기서 전면유리는, 영상면인 플레이트부를 형성하는 하부금형과 측면인 플랜지부를 형성하는 쉘로된 성형 금형내에 용융상태의 유리덩어리를 공급하고, 플런저를 하향, 압축하여서 성형하게 되며, 플랜지부의 내측면은 플런저의 외측벽에 의해 형성된다.In this case, the front glass is formed by supplying a glass mass in a molten state into a mold formed of a lower mold forming a plate portion, which is an image surface, and a shell forming a flange portion, and pressing and plunging the plunger downward to form the inside of the flange portion. The side is formed by the outer wall of the plunger.

이렇게 성형된 전면유리는 완만하게 만곡진 플레이트부와 이 외주에 거의 직립하는 플랜지부로 되고, 이 플랜지부의 상단면은 개구단면으로 된다.The windshield thus formed is a gently curved plate portion and a flange portion substantially upstanding on the outer circumference thereof, and the upper end surface of the flange portion is an opening end surface.

또한, 상기 전면유리의 성형시에 쉘의 성형면에 의하여 형성되는 전면유리의 개구단면에는 일측에 소정각도의 경사면이 형성된다.In addition, an inclined surface of a predetermined angle is formed on one side of the opening end surface of the windshield formed by the molding surface of the shell when the windshield is molded.

종래의 성형방법에 의하면, 상기 경사면의 경사각도가 크게(예컨대, 45° 또는 60°)되는 관계로 연마량이 증가되어 연마작업이 장시간이 소요되고, 연마제의 과다한 소모로 인하여 생산성이 저하되었으며, 경사면의 선단부분이 날카롭게되므로 운반시 또는 연마작업시에 이 부분이 파절되어 제품자체가 폐기되는 폐단이 빈번하였고, 경사각도가 작게(예컨대, 25°)되는 경우에는 연마후의 봉합면이 협소하게 되어 봉합불량에 의한 봉합부의 강도가 저하되게 되는 결점이 있었다.According to the conventional molding method, since the inclination angle of the inclined surface is large (for example, 45 ° or 60 °), the polishing amount is increased and the polishing operation takes a long time, and the productivity is reduced due to excessive consumption of the abrasive. Since the tip of the blade is sharpened, this part is broken during transportation or polishing, and the closed end of the product itself is frequently discarded. When the inclination angle is small (for example, 25 °), the sealing surface after polishing becomes narrow. There existed a fault which the intensity | strength of the seam part by the defect falls.

본 발명은, 칼라브라운관의 제조시에 요구되는 전면유리봉합부의 강도를 향상시킴은 물론 적절한 경사각도의 경사면을 성형함으로써 연마시간 및 연마제를 절감하여 생산성과 품질을 향상시키는데 그 목적이 있는 것이다.The present invention aims to improve the productivity and quality by reducing the polishing time and the abrasive by improving the strength of the front glass sealing portion required for the production of the color-brown tube, as well as by forming the inclined surface having an appropriate inclination angle.

즉 본 발명은, 플런저와 쉘과 하부금형으로 구성되는 유리프레스 성형에 의한 칼라브라운관용 전면유리의 성형방법에 있어서, 일정각의 경사면 성형면을 갖춘 쉘로써 전면유리의 플랜지부 상단면인 개구단면의 일측을 일정각의 경사면으로 성형함을 특징으로 하는 것이다.In other words, the present invention, in the method for forming the front glass for color brown tube by the glass press molding consisting of the plunger, the shell and the lower mold, the shell having a predetermined angled surface shaping surface, the opening end surface of the flange portion of the front glass It is characterized in that one side of the molding to a certain angle of the inclined surface.

또한, 본 발명은 상기 경사면에 경사각을 35°로 성형함을 특징으로 하는 것이다.In addition, the present invention is characterized in that the inclination angle is formed in the inclined surface to 35 °.

상기와 같이 성형함을 특징으로 하는 본 발명은 개구단면일측 경사면의 경사각을 일정각도로 개선하여 연마량을 감소시킴으로써 연마공정이 단축되어 연마시간 감소는 물론 연마제 감소에 의한 생산성 향상 및 봉합부의 외면강도 증가에 의한 품질향상의 효과가 있는 것이다.The present invention, characterized in that the molding as described above, by reducing the amount of polishing by improving the inclination angle of the inclined surface of one side of the opening cross-section to shorten the polishing process to reduce the polishing time as well as to improve the productivity by reducing the abrasive and the outer surface strength of the suture portion There is an effect of quality improvement by the increase.

이하에서 본 발명의 실시예를 첨부도면을 통하여 상세히 설명하면 다음과 같다.Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

본 발명의 일실시예는 플런저(1)와 쉘(2)과 하부금형(3)으로 구성되는 유리프레스 성형에 의한 칼라브라운관용 전면유리의 성형방법에 있어서, 일정각도의 경사면 성형면을 갖춘 쉘(2)로써 전면유리(4)의 개구단면(5)의 일측 경사면(6)을 연마한계선인 연마대(Ⅰ-Ⅰ)를 기준으로 일정경사각도(C)의 경사면(6)으로 성형하는 것이다.In one embodiment of the present invention, in the method for forming the front glass for color brown tube by the glass press molding consisting of the plunger 1, the shell 2, and the lower mold 3, the shell is provided with an inclined forming surface at an angle. In (2), one side of the inclined surface 6 of the open end surface 5 of the windshield 4 is molded into the inclined surface 6 of a constant inclination angle C based on the polishing table I-I, which is the limit of polishing. .

또한 본 발명의 다른 실시예는, 상기 경사면(6)의 경사각도(C)를 35°로 성형하는 것이다.In another embodiment of the present invention, the inclination angle C of the inclined surface 6 is molded at 35 degrees.

즉, 본 발명의 일실시예는 플랜지부(8)의 외측면과 개구단면(5)의 성형부를 갖는 쉘(2)과 완만하게 만곡진 플레이트부(7)를 형성하는 하부금형(3)을 결합하여 이에 용융상태의 유리덩어리를 공급하고, 플랜지부(8)의 내측면을 형성하는 플런저(1)를 하향 압축하여서 전면유리(4)를 성형하고, 이어서 플런저(1)의 인상, 쉘(2)의 분리, 하부금형(3)으로부터의 전면유리(4) 취출, 서냉 등의 공정을 경유하여 최종적으로 완전한 봉합면을 얻기 위한 개구단면(5)의 연마공정으로 이어진다.That is, one embodiment of the present invention provides a shell 2 having an outer surface of the flange portion 8 and a molded portion of the opening end surface 5 and a lower mold 3 forming a gently curved plate portion 7. It combines and supplies a molten glass mass to it, compresses the plunger 1 forming the inner surface of the flange portion 8 to form a windshield 4, and then raises the plunger 1, the shell ( The separation of 2), the extraction of the windshield 4 from the lower mold 3, the slow cooling, and the like lead to the polishing of the end surface 5 to finally obtain a complete sealing surface.

상기 연마공정에 있어서, 그 공정순서는 다이아몬드→아이인→3M→3M→폴리텍스 4회의 순서로 이루어지게 되는데, 상기 공정중에서 3M 연마공정에서는 가격이 가장 고가인 3M휠 연마제를 소모하게 된다.In the polishing process, the process is performed in the order of diamond → eye-in → 3M → 3M → polytex. In the process, the 3M polishing process consumes the most expensive 3M wheel abrasive.

여기서, 본 발명은 연마대(Ⅰ-Ⅰ)를 기준으로 한 개구단면(5) 일측의 경사면(6)의 경사각도(C)가 종래에는 크게(예컨대, A 또는 B)성형되어 이에 따른 연마량이 증가되었던 것을 일정각도로 개선하여 연마량을 감소시킴으로써 연마공정 중에서 3M 한공정을 생략하게 되어 연마시간 단축은 물론 3M 휠 연마제 감소에 의한 생산성을 향상하고, 경사각도(C)가 작게(예컨대, D)되었을 경우에 연마대(Ⅰ-Ⅰ)까지의 연마후 봉합면의 폭이좁아져서 종합불량 및 강고저하가 발생하는 것을 경사각도(C)의 개선에 의해 연마후 적합한 폭의 봉합면이 형성되어 봉합부의 외면강도를 증가시킴으로써 품질 향상의 효과를 나타내게 되는 것이다.Here, in the present invention, the inclination angle C of the inclined surface 6 on one side of the opening end surface 5 based on the polishing table I-I is conventionally formed (for example, A or B) so that the polishing amount accordingly By reducing the amount of polishing by improving the increased amount to a certain angle, one step of 3M is omitted in the polishing process, which reduces the polishing time and improves productivity by reducing the 3M wheel abrasive, and the inclination angle C is small (e.g., D ), The width of the sealing surface after polishing to the polishing table (Ⅰ-Ⅰ) becomes narrow, and the overall defect and rigidity drop occur. Increasing the outer surface strength of the suture will have the effect of improving the quality.

또한, 본 발명의 다른 실시예는, 상기 개구단면(5)의 일측 경사면(6)의 경사각도(C)를, 연마량과 봉합면폭의 상관 관계에서 최적치가 되는 35°로 하여 그 효과를 극대화시키게 되는 것이다.In addition, another embodiment of the present invention, the inclination angle (C) of one side of the inclined surface 6 of the opening end surface 5 is 35 ° which is the optimum value in the correlation between the polishing amount and the sealing surface width to maximize the effect It is to be made.

한편, 본 발명은 전면유리(4)의 성형방법에만 한정되는 것은 아니고, 전면유리(4)의 개구단면(5)과 대응되는 개구단면을 갖는 후면유리(9)의 성형방법에도 적용할 수 있는 것은 두말할 나위도 없다.On the other hand, the present invention is not limited to the shaping method of the windshield 4, but can also be applied to the shaping method of the rear glass 9 having an opening end face corresponding to the opening end face 5 of the windshield 4; Needless to say.

Claims (2)

플런저(1)와 쉘(2)과 하부금형(3)으로 구성되는 유리프레스 성형에 의한 칼라브라운관용 전면유리(4)의 성형방법에 있어서, 일정각의 경사면 성형면을 갖춘 쉘(2)로써 전면유리(4)의 플랜지부(8) 상단면인 개구단면(5) 일측을 일정 경사각도(C)의 경사면(6)으로 성형함을 특징으로 하는 칼라브라운관 전면유리의 성형방법.In the shaping method of the front glass 4 for color-brown tubes by the glass press molding which consists of the plunger 1, the shell 2, and the lower mold 3, it is made as the shell 2 with the inclined surface shaping surface of a certain angle. A method for forming a color-brown tube windshield, characterized in that one side of an opening end face (5), which is an upper end face of a flange portion (8) of the windshield (4), is formed into an inclined surface (6) of a predetermined inclination angle (C). 제1항에 있어서, 상기 경사면(6)의 경사각도(C)를 35°로 성형함을 특징으로 하는 칼라브라운관용 전면유리의 성형방법.The method for forming a front glass for color brown tube according to claim 1, wherein the inclination angle (C) of the inclined surface (6) is formed at 35 degrees.
KR1019870013499A 1987-11-28 1987-11-28 Panel glass manufacture method for color brown tube KR950010023B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019870013499A KR950010023B1 (en) 1987-11-28 1987-11-28 Panel glass manufacture method for color brown tube

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Application Number Priority Date Filing Date Title
KR1019870013499A KR950010023B1 (en) 1987-11-28 1987-11-28 Panel glass manufacture method for color brown tube

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KR890008883A KR890008883A (en) 1989-07-13
KR950010023B1 true KR950010023B1 (en) 1995-09-04

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KR100432769B1 (en) * 2001-05-21 2004-05-24 한국전기초자 주식회사 Apparatus for forming crt flat panel and the crt flat panel formed by the apparatus

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