• 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:
    1421910 Float glass process PILKINGTON BROS Ltd 30 Oct 1973 [31 Oct 1972] 50170/72 Heading C1M In the float glass process the layer of molten glass is laterally confined at the upstream end of the bath to produce a ribbon having a thickness greater than that desired, and then at a downstream position allowing unconstrained lateral movement of the edges of the ribbon as the glass is attenuated to the desired thickness by acceleration to the speed of discharge of the ribbon from the bath. The ribbon is confined by means of a pair of fenders 9, 10 of a material not wetted by glass (e.g. carbon) which are splayed at an angle of the order of 3 degrees to the downstream end of the bath. The length of the fenders is from 2 to 4m.
    公开号:SU1075968A3
    申请号:SU731970952
    申请日:1973-10-30
    公开日:1984-02-23
    发明作者:Барри Милнес Гарольд
    申请人:Пилкингтон Бразерз Лимитед (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the production of sheet glass. A method of producing sheet glass is known, characterized in that glass melt is supplied to the surface of the molten metal in a van with a transverse limitation and ensuring continuous elongation of the tl3 glass ribbon. However, with this method, the performance of the process of producing glass with a thickness of 5.58 mm, which meets modern requirements, is low. . The purpose of the invention is to increase the productivity of the process of obtaining sheet glass with a thickness of 5.5-8 mm. The aim is achieved in that according to the method of producing sheet glass characterized in that glass melt is supplied to the surface of the molten metal in the bath with a transverse restriction and ensuring continuous extraction , the glass melt is fed into the bath at a speed of 17.826, 8 t / h, forming a thickened layer limited along the edges over part of the length of the van nn, then I remove the restriction and reduce the thickness of the glass ribbon to the required value by accelerating its output from the bath to a speed of 380-600 m / h. The drawing shows the device, the production of sheet glass, the general view. The method of producing sheet glass is carried out as follows. Molten glass 1 supplied at a rate of 17.8-26.8 t / h. pours out through the chute 2 onto the surface of the molten metal 3 enclosed in the bath 4, and fills the space between the restrictive walls 5 and 6, providing lateral restriction, which accelerates the movement of the glass layer 1. This acceleration reaches 250 m / h with a layer thickness 9.5 mm and temperatures behind the lower end of the restriction walls 5 and 6. After removing the restriction, the glass ribbon 1 begins to spread over the surface of the molten metal 3 and reaches a width of 3.7 m in section A, the temperature of which is ca. ol. And the glass ribbon thickness of 7.65 mm. Further, as the glass ribbon 1 cools, an increase in viscosity leads to a progressively increasing effect on it of the applied tractive effort. The speed of the glass ribbon increases to 278 m / h, and its width and thickness begins to decrease. Between sections A and C, the glass ribbon 1 is stabilized to a thickness of 5.5-8 mm at a temperature of B80c. The thickness reduction is 39% and the width is only 13%. This is achieved without constraining the edges of the moving glass ribbon. The application of the invention improves the productivity of the process of producing sheet glass while maintaining its predetermined thickness, with no traces of side rollers or any such devices on the marginal surfaces of the sheet, which improves the quality of the glass. f
    权利要求:
    Claims (1)
    [1]
    METHOD FOR PRODUCING SHEET 'GLASS, characterized in that t' glass melt is fed to the surface of the molten metal in a bath with lateral restriction and providing continuous stretching of the glass ribbon, characterized in that, in order to increase the productivity of the process of producing sheet glass with a thickness of 5.5-8 mm , the molten glass is fed into the bathtub at a speed of 17.8-26.8 t / h, forming a thickened layer bounded at the edges by the length of the bath, then the restriction is removed and the thickness of the glass tape is reduced to the required value by accelerating pulling it out of the bath to speed 380-600 m / h.
    §
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1075968A3|1984-02-23|Method for making sheet glass
    US3222154A|1965-12-07|Manufacture of flat glass
    US1756196A|1930-04-29|Method of making metal sheets
    US4784680A|1988-11-15|Method of and apparatus for manufacturing float glass
    US3440030A|1969-04-22|Process using gas inlets to laterally stretch glass during float glass manufacturing
    GB1139469A|1969-01-08|Producing patterned glass
    KR800000908B1|1980-09-10|Manufacture of flat glass
    US2763044A|1956-09-18|Method of continuously casting strip metal
    ES298790A1|1965-01-01|Method and apparatus for manufacture of flat glass
    US4116660A|1978-09-26|Production of flat glass
    US4646812A|1987-03-03|Flow casting
    DE1212256B|1966-03-10|Method and device for producing flat glass in ribbon form
    US3468653A|1969-09-23|Lateral confinement and flow-halting apparatus for manufacture of flat glass
    US1739959A|1929-12-17|Width maintainer
    SU484190A1|1982-08-30|Method for making sheet glass
    GB1037055A|1966-07-27|Improvements in or relating to the manufacture of flat glass
    US3413107A|1968-11-26|Method of and apparatus for the manufacture of flat glass on a molten metal bath
    AR002508A1|1998-03-25|METHOD FOR MOLDING METAL SHEET
    US3445213A|1969-05-20|Manufacture of a continuous glass sheet on a molten metal bath
    SU1764786A1|1992-09-30|Method for producing metal fibers by hardening of melt
    US1505584A|1924-08-19|Method of drawing sheet glass
    GB745427A|1956-02-29|Improvements in or relating to the casting of metal
    RU1822366C|1993-06-15|Method of producing strip by continuous casting
    SU1098518A3|1984-06-15|Method for making sheet glass
    US1891116A|1932-12-13|Rolling of composite glass strips
    同族专利:
    公开号 | 公开日
    PH10355A|1977-01-05|
    TR18112A|1976-09-30|
    SE406082B|1979-01-22|
    NO137120B|1977-09-26|
    GB1421910A|1976-01-21|
    DK146060B|1983-06-20|
    AT357717B|1980-07-25|
    NL7314677A|1974-05-02|
    BE806864A|1974-04-30|
    YU39165B|1984-08-31|
    ZA738163B|1975-05-28|
    DE2353138A1|1974-07-11|
    NL169457C|1982-07-16|
    IT997328B|1975-12-30|
    FI55827B|1979-06-29|
    FR2204580A1|1974-05-24|
    BR7308498D0|1974-09-05|
    NO137120C|1978-01-04|
    MW5873A1|1975-07-09|
    DE2353138C2|1983-01-27|
    ES420117A1|1976-07-01|
    IL43463D0|1974-01-14|
    CA1006354A|1977-03-08|
    AU6182473A|1975-05-01|
    US3871854A|1975-03-18|
    IE38388L|1974-04-30|
    CS172985B2|1977-01-28|
    DK146060C|1983-11-14|
    CH592583A5|1977-10-31|
    ZM16673A1|1975-07-21|
    YU279973A|1982-05-31|
    IE38388B1|1978-03-01|
    FI55827C|1979-10-10|
    LU68712A1|1974-01-08|
    HU167509B|1975-10-28|
    RO67582A|1981-07-30|
    ATA915473A|1979-12-15|
    JPS4997808A|1974-09-17|
    JPS5846455B2|1983-10-17|
    DD108965A5|1974-10-12|
    PL86979B1|1976-06-30|
    BG29570A3|1980-12-12|
    AR198010A1|1974-05-24|
    IL43463A|1976-06-30|
    FR2204580B1|1978-11-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    NL276557A|1961-03-29|
    GB1124624A|1965-03-03|1968-08-21|Pilkington Brothers Ltd|Improvements in or relating to the manufacture of flat glass|
    US3487659A|1966-07-18|1970-01-06|Nippon Sheet Glass Co Ltd|Process and apparatus for increasing the thickness of float glass|
    NL152227C|1968-08-12|
    GB1313743A|1969-07-28|1973-04-18|Pilkington Brothers Ltd|Manufacture of float glass|US4013438A|1975-10-06|1977-03-22|Libbey-Owens-Ford Company|Apparatus for manufacture of float glass|
    JPH0927576A|1995-07-11|1997-01-28|Nec Corp|Package for semiconductor integrated circuit|
    US7122242B2|2002-04-05|2006-10-17|Ppg Industries Ohio, Inc.|Wedge shaped glass and methods of forming wedged glass|
    FR2851767B1|2003-02-27|2007-02-09|Saint Gobain|PROCESS FOR PREPARING A GLASS BY MIXING FOUNDED GLASSES|
    US7690221B2|2004-02-23|2010-04-06|Corning Incorporated|Sheet width control for overflow downdraw sheet glass forming apparatus|
    JP5948720B2|2012-05-30|2016-07-06|エルジー・ケム・リミテッド|Float tank and method for producing float glass|
    CN103553301B|2013-10-16|2015-07-08|山东金晶科技股份有限公司|Production method of high-zebra-angle 2mm automobile float glass|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB5017072A|GB1421910A|1972-10-31|1972-10-31|Manufacture of flat glass|
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