• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The ELECTRON-BEAM PIPE, containing a front glass panel with a viewing screen, reinforcing a continuous band located around the front panel and an elastomeric film bonded to it, covering the surface of the bandage, as well as a glass cone, tightly fastened to the front panel, which is attached. In order to improve explosion-proof glass, the cone has a region equipped with voltage concentrators in the form of a set of ridges and valleys, i the thickness of which is less than the thickness. glass cone, and elastomer- (L on the film is made of polyurethane with a thickness of 0.075-0.125 mm.
    公开号:SU1175371A3
    申请号:SU782700495
    申请日:1978-12-26
    公开日:1985-08-23
    发明作者:Эддисон Ноулан Ричард
    申请人:Рка Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    / 9 р St- 1 22 g, .о, //;
    The invention relates to the field of electrochemistry and can be used to create a CRT having an improved explosion protection system.
    The purpose of the invention is to increase the explosion-proof tube by reducing glass emissions with a possible explosion (at the same time the cost of the protective layer is reduced).
    FIG. 1 depicts the proposed CRT, vertical projection; in fig. 2 - the same section; in fig. 3 CRT, having another explosion-proof system, is a vertical projection.
    CRT (Fig. 1 and 2) contains a flask
    1, made with a front glass panel 2, having an observation screen 3, reinforced continuous band 4, located around the front panel
    2, and the bonded elastomeric film 5, as well as the glass cone 6, hermetically bonded to the front panel 2, while the glass cone, nus 6, has an area 7 provided with a voltage concentrator 8 designed to facilitate the cracking of the glass cone 6 The hubs 8 voltages are made in
    surface 9, the thickness of which is less than the thickness of the glass cone 6, and the voltage concentrators 8 are made as a combination of ridges 10 and hollows 11. The film 5 is made of polyurethane with a thickness of 0.075-0.125 mm.
    The CRT (Figs. 1 and 2) is under vacuum. The flask 1 contains a glass neck 12 connected to a cone (socket) 6 and a rectangular front faceplate 2. The viewing screen 3 contains a peripheral side wall 13 connected to it and is a plane having a rise of 0.25 mm from the center relative to the diagonal of the corners of the screen 3 (620 mm screen diagonal). The expansion part of the side wall 13 is hermetically sealed to the wide side of the cone 6 by means of a gasket 14, for example, decanted glass. The luminescent screen 15 is located on the inner surface of the viewing screen 3 and, with appropriate scanning with an electron beam from a gun 16 located in the neck 12, produces a luminescent image that is viewed through the viewing screen 3.
    The neck 12 on the reverse side is closed and sealed with a panel
    with hinged legs passing through it. A continuous peripheral film 5 of a 027 mm thick polyurethane coating is attached to the outer parts of the surface of the side wall 17 and the glass cone b on each side of the gasket 14. A film 5 of about 12.5 cm wide covers the space from the gasket 14 about 5 cm towards window and 7.5 cm in the direction of the neck. The continuous metal reinforcement is placed around the panel and adheres to the polyurethane film 5.
    In the proposed CRT (Figs. 1 and 2), the bandage reinforcement structure contains two I-shaped plates in the form of bandage 4, arranged so as to surround the side walls 17. The rim plates adhere to the film 5 by heat treatment with epoxy resin or polyester impregnating composition 18. In addition, a metal tape is fastened around the rim plates and tensioned by crimping a metal clip 19. J
    The inner surface of the shell is under high vacuum (low pressure) on the order of Hg. In this example, with a rectangular color tube of 19 V 90, the atmospheric pressure creates pressure on the external surface of the viewing window with a total force of 1800 kg. Peripheral stress forces of about 70 kg / cm affect the side wall 17 and adjacent parts of the bell 6. When a crack is formed on the sight glass under the action of atmospheric pressure, the window fragments are directed inward to the glass cone 6, and then bounce back. In this case, the explosion-proof system does not prevent an explosion, but reduces the injury to people close to the faceplate of the tube. In particular, this explosion-proof system reduces the distance to which glass fragments are thrown. In the event of the destruction of the viewing screen 3, the film 5, which is decimated with the outer surfaces of the shell, supports the adjacent glass fragments in place, allowing the gas to penetrate the tube. This reduces differential pressure.
    On opposite sides of the viewing screen 3, thereby reducing the forces scattering the fragments of the stele.
    The film 5 is formed on the tube after the flask 1 is completely freed from gases and sealed (the electrodes of the gun 16 are electrically processed). To obtain the required viscosity, a water-based polyurethane emulsion is diluted with water. The mixture is then applied with a brush, poured or sprayed onto the desired surfaces, using a pattern to mask the areas. When spraying, the thickness of the emulsion coating is controlled by incorporating a water-based dye into the emulsion, and then applying the emulsion to a color depth corresponding to the desired thickness. After applying the emulsion, the emulsion coating is dried, and the solid particles in it are merged into a film, thereby curing the coating. This can be done by placing the tube in an oven at a temperature of 2 to 120 ° C for 30-5 minutes (preferably 90 ° C in for 10 minutes). The tube can be preheated in an oven at 20-90 ° C before the emulsion coating is applied. After curing the coating, the film thickness is at least equal to 0.075 mm (preferably 0.125 mm). Thick coatings did not affect the protection against vzrat, but very
    Thick film leads to higher material costs.
    The tube in FIG. 3 is identical in construction to the tube in FIG. 1 and 2, except for the degree of film coating and the design of the hardening device. The film 5 is deposited on the rear part of the glass cone 6 behind the gasket 14. In addition, around the side wall of the panel is a metal hardening device containing a metal shield 20. The metal shield-20 adheres to the film 5 by vulcanizing resin or adhesive complex the ether.
     Upon destruction, the window fragments are moved to the CRT and into a housing (not shown) in which the tube (CRT) is mounted. Since the cone 6 is relatively strong in its construction and thickness, the window fragments bounce back with less strength. so that it collapses when struck by directional window fragments, and the shell fragments are directed into the housing, where they are installed. The outer surface of the area 21 of the cone 6 is the anode terminal 22 and the neck 12 is worn (weakened). At the point of weakening of the area 7 of the surface of the cone 6, the grooves of the concentrator 8 of the stresses can be cast or ground using wafer or other templates. In addition, the polished or grooved area may be on the inner surface of the socket 6 or on the inner and outer surfaces of the socket 6.
    权利要求:
    Claims (1)
    [1]
    ELECTRON BEAM TUBE, comprising a front glass panel with a viewing screen reinforcing with a continuous brace located around the front panel and fastened with an elastomeric film overlapping the surface of the band, as well as a glass cone sealed to the front panel, characterized in that, for the purpose of explosion proof glass. the cone has a region equipped with stress concentrators in the form of a set of ridges and depressions, the thickness of which is less than the thickness. § a glass cone, and the elastomeric film is made of polyurethane with a thickness of 0.075-0.125 mm.
    SU „, .1175371
    1175
    类似技术:
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    同族专利:
    公开号 | 公开日
    GB2011164A|1979-07-04|
    IT7831178D0|1978-12-21|
    IT1101236B|1985-09-28|
    GB2011164B|1982-07-21|
    FI783921A|1979-06-28|
    DE2855732A1|1979-06-28|
    AU4212578A|1979-07-05|
    DD141220A5|1980-04-16|
    JPS616972B2|1986-03-03|
    PL211977A1|1979-08-27|
    CA1125350A|1982-06-08|
    ATA929978A|1985-05-15|
    FR2413777B1|1984-11-02|
    US4158419A|1979-06-19|
    JPS54100664A|1979-08-08|
    AT379467B|1986-01-10|
    FR2413777A1|1979-07-27|
    PL128335B1|1984-01-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2293529A|1940-06-29|1942-08-18|Rca Corp|Image tube|
    NL263731A|1960-04-18|
    US3298553A|1961-11-09|1967-01-17|Owens Illinois Inc|Partially devitrified glass article and method for making the same|
    FR1387013A|1962-03-19|1965-01-29|Owens Illinois Glass Co|Cathode ray tubes and other fracture resistant vacuum tubes capable of undergoing controlled vacuum loss|
    NL290374A|1962-03-19|
    FR1355737A|1963-02-07|1964-03-20|Loing Verreries|Advanced training in the protection of devices such as television tubes, against implosions|
    US3416026A|1963-08-19|1968-12-10|Sony Corp|Cathode ray tube|
    US3383000A|1964-12-14|1968-05-14|Owens Illinois Inc|Cathode-ray tubes and method of reinforcing the tubes|
    US3382999A|1964-12-14|1968-05-14|Owens Illinois Inc|Cathode-ray tubes and method of reinforcing the tubes|
    US3412203A|1965-08-16|1968-11-19|Mercury Aircraft Inc|Tv picture tube and mounting frame assembly|
    US3471317A|1965-08-25|1969-10-07|Dow Chemical Co|Process for coating glass electronic vacuum tubes|
    FR1506293A|1966-03-10|1967-12-22|Cft Comp Fse Television|Further training in the manufacture of cathode ray tubes|
    NL6612938A|1966-09-14|1968-03-15|
    FR1538843A|1966-09-14|1968-09-06|Philips Nv|Method of applying a hose clamp to the bulb of a television tube|
    GB1175443A|1967-03-03|1969-12-23|Thorn Aei Radio Valves & Tubes|Improvements in Implosion-Resistant Cathode Ray Tubes|
    US3404302A|1967-06-21|1968-10-01|Gen Electric|Envelope wall with two continuous ledges for positioning and supporting aperture mask|
    NL6709525A|1967-07-08|1969-01-10|
    JPS459627Y1|1967-09-26|1970-05-06|
    US3837829A|1969-05-20|1974-09-24|Couleur F|Method of manufacture for cathode-ray tubes for color television receivers|
    JPS5328927B2|1971-11-24|1978-08-17|
    JPS499386A|1972-05-24|1974-01-26|
    US3823032A|1972-07-27|1974-07-09|Moon Star Chemical Corp|Glass bottles coated with multiprotective film layers|
    US3845530A|1972-10-10|1974-11-05|Rca Corp|Method for rendering cathode-ray tube more resistant to implosion and product thereof|
    US4065589A|1975-06-09|1977-12-27|Owens-Illinois, Inc.|Polymeric coating for protection of glass substrate|DE3110930A1|1981-03-20|1982-09-30|Standard Elektrik Lorenz Ag, 7000 Stuttgart|IMAGE TUBES WITH PROTECTIVE DEVICE|
    US4550344A|1982-09-27|1985-10-29|North American Philips Consumer Electronics Corp.|Cathode ray tube with composite mounting structure|
    US4930015A|1986-08-08|1990-05-29|Zenith Electronics Corporation|Flat tension mask cathode ray tube implosion system|
    US5565934A|1992-02-05|1996-10-15|Digital Equipment Corporation|Molded video display screen bezel|
    JP3557828B2|1997-02-06|2004-08-25|旭硝子株式会社|Panel glass for cathode ray tube|
    JPH10241604A|1997-02-27|1998-09-11|Asahi Glass Co Ltd|Glass panel for cathode-ray tube|
    US6751164B1|1999-07-16|2004-06-15|Citizen Watch Co., Ltd.|Time piece|
    EP1244131A1|2001-03-22|2002-09-25|Schott Glas|Cathode ray tube|
    KR20070029145A|2004-03-09|2007-03-13|톰슨 라이센싱|Lightweight high deflection angle cathode ray tube and method of making the same|
    SE527424C2|2004-07-08|2006-02-28|Atlas Copco Rocktech Ab|Device and method for grouting and fixing reinforcing and / or anchoring elements in rock wall|
    KR100696664B1|2005-02-18|2007-03-19|삼성에스디아이 주식회사|Cathode ray tube|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/864,763|US4158419A|1977-12-27|1977-12-27|Implosion protected CRT|
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