• 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 invention relates to a centrifuge for the manufacture of glass fibers made of an alloy of a particular composition.
    公开号:BE1023351B1
    申请号:E2009/0778
    申请日:2009-12-10
    公开日:2017-02-13
    发明作者:
    申请人:Knauf Insulation；
    IPC主号:
    专利说明:

    Centrifuge
    The present invention relates to a centrifuge which can be used for the manufacture of glass, in particular suitable for the manufacture of glass fibers, to a method of manufacturing such a centrifuge, as well as to a process for producing fiberglass fibers. glass using such a centrifuge.
    The glass fibers are known, among others, for their insulation qualities. For this particular application, the fibers are generally bonded with a synthetic resin and the finished product will have the form of rigid panels or soft mattresses to protect walls and ceilings, or the shape of shells to insulate the pipes. Generally, in the manufacture of glass fibers, the molten glass is fed into a hollow body which rotates at high speed (centrifuge). This body has a peripheral wall perforated with many orifices through which the glass is sprayed under the action of the centrifugal force, so that so-called primary fibers are formed which are then stretched, for example by the action of flames or fires. a gas stream.
    The centrifuge is a very thermally stressed fiberizing tool (thermal shocks during starts and stops, presence of a temperature gradient within the workpiece during use), mechanically (centrifugal force, erosion due to the passage of the glass) and chemically (oxidation and corrosion by molten glass, and hot gases outside the centrifuge). Its main modes of deterioration are: the hot creep deformation of the peripheral wall, the appearance of cracks, erosion wear of the fiberization holes, which require the pure and simple replacement of the centrifuges. Their constituent material must therefore withstand a sufficiently long production time to remain compatible with the technical and economic constraints of the process. For this purpose, materials with a certain ductility, creep resistance and resistance to corrosion and / or oxidation are sought.
    According to one of its aspects, the present invention relates to a centrifuge according to claim 1, the dependent claims having preferred embodiments. The invention relates to a centrifuge for the manufacture of glass fibers, consisting of an alloy comprising the following elements, according to the weight percentages thus defined: C 0.45 to 0.55%
    Mn 0.50 to 1.00%
    If 0.50 to 1.00%
    Cr 24.50 to 26.50%
    Ni 9.50 to 11.50% W 7.00 to 8.00% B 0.005 to 0.015%
    Co 51.435 to 57.545%.
    This particular alloy has the advantage of being able to offer the centrifuge a mechanical, thermal and chemical resistance suitable for the manufacture of glass fibers.
    Alternatively, the alloy may further comprise at least one of the following elements, according to the weight percentages thus defined: P 0 to 0.040% S 0 to 0.040%
    MB 0 to 0.50% B 0 to 0.010%
    Fe 0 to 2.00%
    Ti 0 to 0.10%
    Al 0 to 0.05%, replacing an equivalent amount in Co.
    In another aspect, the present invention provides a centrifuge according to claim 3, the dependent claims having preferred embodiments. The invention relates to a centrifuge for the manufacture of glass fibers, consisting of an alloy comprising the following elements, according to the weight percentages thus defined: C 0.5 to 0.7%
    Cr 30.50 to 32.50%
    10.00 to 12.00% W 7.00 to 8.00% B 0.02 to 0.07%
    Ta 2.55 to 2.90%
    Zr 0 to 0.4%
    Co 43.43 to 49.43%.
    This particular alloy has the advantage of being able to offer the centrifuge a mechanical, thermal and chemical resistance suitable for the manufacture of glass fibers.
    Alternatively, the alloy may further comprise at least one of the following elements, according to the weight percentages thus defined:
    If 0.57 to 0.68%
    Fe 0 to 1.25% replacing an equivalent amount in Co.
    In another aspect, the present invention relates to a centrifuge according to claim 5, the dependent claims having preferred embodiments. The invention relates to a centrifuge for the manufacture of glass fibers, consisting of an alloy comprising the following elements, according to the weight percentages thus defined: C 0.40 to 0.50%
    Mn 0.80 to 1.20%
    If 1.05 to 1.50%
    Cr 27.50 to 29.50%
    Mo 0.20 to 0.40% W 4.30 to 4.80%
    Fe 14.5 to 16.5% NI 45.60 to 51.25%.
    This particular alloy has the advantage of being able to offer the centrifuge a mechanical, thermal and chemical resistance suitable for the manufacture of glass fibers.
    Alternatively, the alloy may further comprise at least one of the following elements, according to the weight percentages thus defined: P 0 to 0.040% S 0 to 0.030% B 0 to 0.010%
    Ti 0 to 0.01%
    Al 0 to 0.05% replacing an equivalent amount of Ni.
    For all the embodiments of the invention, it is possible to find in the alloys defined here traces of other elements, for example, Sb, As, Bi, Cd, Ga, In, Pb, Se, Te, Tl. , Zn, Hf, Y, Sn, Th, Au, Hg, Ba, Be, Br, I, Cl, F, Mg or K.
    According to another aspect, the subject of the present invention is a method for manufacturing glass fibers according to claim 7.
    According to another aspect, the subject of the present invention is a method of manufacturing a centrifuge according to claim 8.
    Particular embodiments of the invention will now be described as examples.
    Example 1
    A centrifuge for the manufacture of glass fibers is made from a metal alloy having the following composition: C 0.52%
    Mn 0.65%
    If 0.58%
    Cr 25.35%
    Ni 10.67% W 7.61% B 0.012%
    Co 54.608%
    Example 2
    A centrifuge for the manufacture of glass fibers is made from a metal alloy having the following composition: C 0.42%
    Mn 0.96%
    If 1.31%
    Cr 28.80%
    Mo 0.29% W 4.55%
    Fe 15.68% P 0.012% S 0.005%
    Al 0.003%
    Neither 47.97%
    权利要求:
    Claims (8)
    [1]
    1. Centrifuge for the manufacture of glass fibers, characterized in that it consists of an alloy comprising the following elements, according to the weight percentages thus defined: C 0.45 to 0.55% Mn 0.50 to 1.00% Si 0.50 to 1.00% Cr 24.50 to 26.50% Ni 9.50 to 11.50% W 7.00 to 8.00% B 0.005 to 0.015% Co 51.435 to 57.545%
    [2]
    2. Centrifuge according to claim 1, characterized in that the alloy further comprises at least one of the following elements, according to the weight percentages thus defined: P 0 to 0.040% S 0 to 0.040% Mo 0 to 0.50% B 0 to 0.010% Fe 0 to 2.00% Ti 0 to 0.10% Al 0 to 0.05% replacing an equivalent amount in Co.
    [3]
    3. Centrifuge for the manufacture of glass fibers, characterized in that it consists of an alloy comprising the following elements, according to the weight percentages thus defined: C 0.5 to 0.7% Cr 30.50 to 32.50% Ni 10.00 to 12.00% W 7.00 to 8.00% B 0.02 to 0.07% Ta 2.55 to 2.90% Zr 0 to 0.4% Co 43.43 to 49.43%
    [4]
    4. Centrifuge according to claim 3, characterized in that the alloy further comprises at least one of the following elements, according to the weight percentages thus defined: Si 0.57 to 0.68% Fe 0 to 1.25% in replacement of an equivalent amount in Co.
    [5]
    5. Centrifuge for the manufacture of glass fibers, characterized in that it consists of an alloy comprising the following elements, according to the weight percentages thus defined: C 0.40 to 0.50% Mn 0.80 to 1.20% Si 1.05 to 1.50% Cr 27.50 to 29.50% Mo 0.20 to 0.40% W 4.30 to 4.80% Fe 14.5 to 16.5% Ni 45.60 to 51.25%
    [6]
    6. Centrifuge according to claim 5, characterized in that the alloy further comprises at least one of the following elements, according to the weight percentages thus defined: P 0 to 0.040% S 0 to 0.030% B 0 to 0.010% Ti 0 to 0.01% Al 0 to 0.05% replacing an equivalent amount of Ni.
    [7]
    7. Process for manufacturing glass fibers, characterized in that it comprises a step of drawing a molten glass by centrifugation in a centrifuge according to any one of the preceding claims.
    [8]
    A method of manufacturing a centrifuge according to any one of the preceding claims comprising casting the molten alloy into a suitable mold.
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    同族专利:
    公开号 | 公开日
    BE1017718A6|2009-04-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2858102A|1954-09-03|1958-10-28|Gen Electric|Turbomachine wheels and methods of making the same|
    US3443922A|1966-03-08|1969-05-13|Ppg Industries Inc|Float glass take-out roll|
    US4129444A|1973-01-15|1978-12-12|Cabot Corporation|Power metallurgy compacts and products of high performance alloys|
    US3933484A|1974-05-31|1976-01-20|Owens-Corning Fiberglas Corporation|Cobalt-base alloy|
    JPS6033332A|1983-08-05|1985-02-20|Mitsubishi Metal Corp|Heat resistant co-base alloy for glass fiber molding spinner|
    JPS6052545A|1983-09-02|1985-03-25|Mitsubishi Metal Corp|Co-base heat resistant alloy for spinner for forming glass fiber|
    JPS6059039A|1983-09-09|1985-04-05|Mitsubishi Metal Corp|Heat resistant co alloy for spinner for forming glass fiber|
    JPS60262935A|1984-06-11|1985-12-26|Mitsubishi Metal Corp|Co base heat resisting alloy for glass fiber forming spinner|
    KR940008942B1|1992-08-01|1994-09-28|주식회사 금강|Making method of cobalt base metal|
    JPH06240392A|1992-12-21|1994-08-30|Mitsubishi Materials Corp|Glass fiber forming spinner made of co base alloy excellent in wear resistance|
    US20040237712A1|2001-07-03|2004-12-02|Whitaker Iain Robert|Sintered tin-containing cobalt-based and nickel-based alloys|
    JP2004099968A|2002-09-09|2004-04-02|Taiheiyo Tokushu Chuzo Kk|Heat resistant alloy for glass fiber molding spinner and spinner|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    BE2008/0666|2008-12-12|
    BE2008/0666A|BE1017718A6|2008-12-12|2008-12-12|Centrifuge for the fabrication of glass fibers, comprises an alloy comprising carbon, manganese, silicon, chromium, nickel, tungsten, boron and cobalt |
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