Method and apparatus for the semi-continuous melting and discharging of
ceramic material in an induction melting furnace with sintering crust
crucible
    1.
    发明授权
    Method and apparatus for the semi-continuous melting and discharging of ceramic material in an induction melting furnace with sintering crust crucible 失效
    在具有烧结地壳坩埚的感应熔炼炉中半连续熔融和排出陶瓷材料的方法和装置

    公开(公告)号:US5526375A

    公开(公告)日:1996-06-11

    申请号:US393425

    申请日:1995-02-23

    摘要: A method is disclosed for the semi-continuous melting of ceramic material by means of inductive melting in high-frequency and medium-frequency induction melting furnaces whose melting coil surrounds a sintering crust crucible and contains a run-out channel. In the method, melt is periodically run out and material to be melted is supplied to the crucible so as to replace the material removed preferably so as to maintain a constant level. An intensively cooled channel is used as a run-out device. For the melt broaching, the melt nose is grasped from below by way of an automatically controllable broaching lance of a broaching device and raised. The broaching lance is then advanced between the bottom of the channel and the solidified melt until the sintering crust is pierced. The method permits a reliable and economic management of the process and the maintenance of the quality of the melted products. A device for periodic melt broaching as well as an induction melting furnace equipped with an intensively coolable run-out channel provides apparatus for carrying out the above method.

    摘要翻译: 公开了一种通过在高频和中频感应熔炼炉中进行感应熔化的陶瓷材料半连续熔化的方法,其中熔化线圈围绕着烧结的地壳坩埚并且包含一个流出通道。 在该方法中,熔体周期性地流出,并将待熔化的材料供应到坩埚中,以便更换移除的材料,以便保持恒定的水平。 密集冷却通道用作漏气装置。 对于熔体拉削,通过拉削装置的可自动控制的拉削喷枪将熔体鼻从下方抓取并升起。 然后在通道的底部和固化的熔体之间推进拉刀枪,直到烧结外壳被刺穿。 该方法允许可靠和经济地管理过程和维持熔化产品的质量。 用于周期性熔融拉削的装置以及装备有可冷却可靠的漏气通道的感应熔炼炉提供用于执行上述方法的装置。

    Method and apparatus for the semi-continuous melting and discharging of
ceramic material in an induction melting furnace with sintering crust
crucible
    2.
    发明授权
    Method and apparatus for the semi-continuous melting and discharging of ceramic material in an induction melting furnace with sintering crust crucible 失效
    在具有烧结地壳坩埚的感应熔炼炉中半连续熔融和排出陶瓷材料的方法和装置

    公开(公告)号:US5430757A

    公开(公告)日:1995-07-04

    申请号:US112432

    申请日:1993-08-26

    摘要: A method is disclosed for the semi-continuous melting of ceramic material by means of inductive melting in high-frequency and medium-frequency induction melting furnaces whose melting coil surrounds a sintering crust crucible and contains a run-out channel. In tile method, melt is periodically run out and material to be melted is supplied to the crucible so as to replace the material removed preferably so as to maintain a constant level. An intensively cooled channel is used as a run-out device. For the melt broaching, the melt nose is grasped from below by way of an automatically controllable broaching lance of a broaching device and raised. The broaching lance is then advanced between the bottom of the channel and the solidified melt until the sintering crust is pierced. The method permits a reliable and economic management of the process and the maintenance of the quality of the melted products. A device for periodic melt broaching as well as an induction melting furnace equipped with an intensively coolable run-out channel provides apparatus for carrying out the above method.

    摘要翻译: 公开了一种通过在高频和中频感应熔炼炉中进行感应熔化的陶瓷材料的半连续熔化的方法,其中熔化线圈围绕着烧结的外壳坩埚并且包含一个流出通道。 在瓦片方法中,熔体周期性地流出,并将待熔化的材料供应到坩埚中,以便更换去除的材料,以便保持恒定的水平。 密集冷却通道用作漏气装置。 对于熔体拉削,通过拉削装置的可自动控制的拉削喷枪将熔体鼻从下方抓取并升起。 然后在通道的底部和固化的熔体之间推进拉刀枪,直到烧结外壳被刺穿。 该方法允许可靠和经济地管理过程和维持熔化产品的质量。 用于周期性熔融拉削的装置以及装备有可冷却可靠的漏气通道的感应熔炼炉提供用于执行上述方法的装置。

    Method and apparatus for the semi-continuous melting and discharging of
ceramic material in an induction melting furnace with singering crust
crucible
    3.
    发明授权
    Method and apparatus for the semi-continuous melting and discharging of ceramic material in an induction melting furnace with singering crust crucible 失效
    用感应熔炼炉中的陶瓷材料进行半连续熔融和排放的方法和装置,其中包括具有歌谣外壳的坩埚

    公开(公告)号:US5268925A

    公开(公告)日:1993-12-07

    申请号:US842606

    申请日:1992-02-27

    摘要: A method is disclosed for the semi-continuous melting of ceramic material by means of inductive melting in high-frequency and medium-frequency induction melting furnaces whose melting coil surrounds a sintering crust crucible and contains a run-out channel. In the method, melt is periodically run out and material to be melted is supplied to the crucible so as to replace the material removed preferably so as to maintain a constant level. An intensively cooled channel is used as a run-out device. For the melt broaching, the melt nose is grasped from below by way of an automatically controllable broaching lance of a broaching device and raised. The broaching lance is then advanced between the bottom of the channel and the solidified melt until the sintering crust is pierced. The method permits a reliable and economic management of the process and the maintenance of the quality of the melted products. A device for periodic melt broaching as well as an induction melting furnace equipped with an intensively coolable run-out channel provides apparatus for carrying out the above method.

    摘要翻译: 公开了一种通过在高频和中频感应熔炼炉中进行感应熔化的陶瓷材料半连续熔化的方法,其中熔化线圈围绕着烧结的地壳坩埚并且包含一个流出通道。 在该方法中,熔体周期性地流出,并将待熔化的材料供应到坩埚中,以便更换移除的材料,以便保持恒定的水平。 密集冷却通道用作漏气装置。 对于熔体拉削,通过拉削装置的可自动控制的拉削喷枪将熔体鼻从下方抓取并升起。 然后在通道的底部和固化的熔体之间推进拉刀枪,直到烧结外壳被刺穿。 该方法允许可靠和经济地管理过程和维持熔化产品的质量。 用于周期性熔融拉削的装置以及装备有可冷却可靠的漏气通道的感应熔炼炉提供用于执行上述方法的装置。

    Thermally split zirconium silicate, method of its production and use
    4.
    发明授权
    Thermally split zirconium silicate, method of its production and use 失效
    热分解硅酸锆,其生产和使用方法

    公开(公告)号:US5614011A

    公开(公告)日:1997-03-25

    申请号:US481699

    申请日:1995-06-07

    IPC分类号: C01G25/02 F27D3/14 C01B13/18

    摘要: Thermally split zirconium silicate is produced such that the crystalline zirconium dioxide embedded in an amorphous silica phase exhibits an average grain or particle size (d.sub.50 value) in a range of 0.5 .mu.m to 3.0 .mu.m and a specific surface (BET) in a range of 3 to 15 m.sup.2 /g. The zirconium dioxide produced by this method is particularly suited for the production of zirconium silicate pigments with improved color characteristics. The thermally split zirconium silicate is also particularly well suited for processes used in the obtention of zirconium dioxide. The method of producing the thermally split zirconium silicate includes melting zirconium silicate in an induction melting furnace and cooling off a free falling stream of melt by blowing on it with a gas and/or spraying it with water.

    摘要翻译: 制备热分解硅酸锆,使得嵌入无定形二氧化硅相中的结晶二氧化锆在0.5μm至3.0μm的范围内表现出平均晶粒或粒径(d50值),在一定范围内的比表面积(BET) 为3至15m2 / g。 通过该方法制备的二氧化锆特别适合于生产具有改进的颜色特性的硅酸锆颜料。 热裂硅酸锆也特别适用于获得二氧化锆的工艺。 制造热裂硅酸锆的方法包括在感应熔化炉中熔化硅酸锆,并用气体吹送和/或用水喷雾来冷却游离的熔体流。

    Thermally split zirconium silicate, method of its production and use
    5.
    发明授权
    Thermally split zirconium silicate, method of its production and use 失效
    热分解硅酸锆,其生产和使用方法

    公开(公告)号:US5324355A

    公开(公告)日:1994-06-28

    申请号:US842607

    申请日:1992-02-27

    IPC分类号: C01G25/02 F27D3/14 C01B13/18

    摘要: Thermally split zirconium silicate is produced such that the crystalline zirconium dioxide embedded in an amorphous silica phase exhibits an average grain or particle size (d.sub.50 value) in a range of 0.5 .mu.m to 3.0 .mu.m and a specific surface area (BET) in a range of 3 to 15 m.sup.2 /g when the silica is removed by leaching. The zirconium dioxide produced by this method is particularly suited for the production of zirconium silicate pigments with improved color characteristics. The thermally split zirconium silicate is also particularly well suited for processes used in the obtention of zirconium dioxide. The method of producing the thermally split zirconium silicate includes melting zirconium silicate in an induction melting furnace and cooling off a free falling stream of melt by blowing on it with a gas and/or spraying it with water.

    摘要翻译: 制备热分解硅酸锆,使得嵌入无定形二氧化硅相中的结晶二氧化锆在0.5μm至3.0μm的范围内显示平均晶粒或粒径(d50值),并且比表面积(BET)在 当通过浸出除去二氧化硅时,其范围为3至15m 2 / g。 通过该方法制备的二氧化锆特别适合于生产具有改进的颜色特性的硅酸锆颜料。 热裂硅酸锆也特别适用于获得二氧化锆的工艺。 制造热裂硅酸锆的方法包括在感应熔化炉中熔化硅酸锆,并用气体吹送和/或用水喷雾来冷却游离的熔体流。

    Monoclinic zirconium dioxide, method of its production and use
    6.
    发明授权
    Monoclinic zirconium dioxide, method of its production and use 失效
    单斜色二氧化锆,其生产和使用方法

    公开(公告)号:US5318765A

    公开(公告)日:1994-06-07

    申请号:US842610

    申请日:1992-02-27

    摘要: A monoclinic zirconium dioxide with an SiO.sub.2 content below 1.0% by weight is provided which is characterized by dendrite-shaped particles with an average grain size (d.sub.50 value) in a range of 0.5 .mu.m to 3.0 .mu.m and a specific surface (BET) in a range of 3 to 15 m.sup.2 /g. This zirconium dioxide is produced by thermally splitting zirconium silicate in a high-frequency- or medium-frequency induction melting furnace with sintering crust crucible, quenching the melt by blowing on a stream of melt with air and/or spraying it with water and leaching out the thermally split zirconium silicate with concentrated alkali lye at 100.degree. 200.degree. C. The zirconium dioxide of the invention provides a material with improved suitability for the production of zirconium silicate pigments of the host lattice type and inclusion type so as to provide for more color-intensive pigments.

    摘要翻译: 提供SiO 2含量低于1.0重量%的单斜二氧化锆,其特征在于平均粒径(d50值)在0.5μm至3.0μm范围内的树突状颗粒和比表面积(BET) 在3至15m 2 / g的范围内。 该二氧化锆是通过在具有烧结外壳的高频或中频感应熔化炉中热分解硅酸锆而制成的,通过用空气吹入熔融物流和/或用水喷洒熔融物并浸出 本发明的二氧化锆提供了一种改进适用于生产主晶格型和夹杂物型的硅酸锆颜料的材料,从而提供更多的颜色 密集颜料。

    Thiazine derivatives
    9.
    发明授权
    Thiazine derivatives 失效
    噻嗪衍生物

    公开(公告)号:US4180662A

    公开(公告)日:1979-12-25

    申请号:US938274

    申请日:1978-08-31

    摘要: Anti-inflammatory, analgesic, anti-rheumatic and anti-thrombotic thienothiazine derivatives having the formula ##STR1## wherein A together with the two carbon atoms forms the group ##STR2## and the dotted line indicates the double bond present in the first and last thieno structures above, R.sup.1 is lower alkyl, R.sup.2 is the radical of an aromatic heterocycle with 1 to 4 hetero atoms optionally substituted by one or two lower alkyl groups, or a phenyl radical optionally substituted by halogen, hydroxy, lower alkyl, trifluoromethyl or lower alkoxy, R.sup.3 is halogen and R.sup.3' is hydrogen or halogen,and pharmaceutically acceptable salts thereof are described.

    摘要翻译: 具有下式的抗炎,止痛,抗风湿和抗血栓形成噻吩噻嗪衍生物其中A与两个碳原子一起形成基团,虚线表示存在于第一和最后一个 R 1为低级烷基,R 2为任选被一个或两个低级烷基取代的具有1至4个杂原子的芳族杂环的基团,或任选被卤素,羟基,低级烷基,三氟甲基或低级烷基取代的苯基 烷氧基,R 3为卤素,R 3'为氢或卤素,及其药学上可接受的盐。