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7 条记录 (耗时 0.025 秒)

    Continuous melting, refining and casting process
    4.
    发明授权
    Continuous melting, refining and casting process 失效
    连续熔炼，精炼和铸造工艺

    公开(公告)号：US4419128A

    公开(公告)日：1983-12-06

    申请号：US358908

    申请日：1982-03-17

    申请人： Ryuichi Nakagawa ,  Shiro Yoshimatsu ,  Akira Fukuzawa ,  Akira Sato ,  Tsuyoshi Ozaki

    发明人： Ryuichi Nakagawa ,  Shiro Yoshimatsu ,  Akira Fukuzawa ,  Akira Sato ,  Tsuyoshi Ozaki

    IPC分类号： C21C5/56 ,  C21C5/32

    CPC分类号： C21C5/567 ,  Y02P10/212 ,  Y10S75/957

    摘要： In a continuous melting, refining and casting process which comprises, substantially in series, a step of melting and carburizing steel scrap, iron scrap and/or reduced iron as a raw material in a combustion-type melting furnace, a refining step by blowing of oxygen, a refining and holding step and a continuous casting step, the improvement wherein an intermediate holding step in a holding furnace is provided between the melting and carburizing step and the refining step so that the molten metal tapped from the melting furnace is held in the intermediate holding furnace for a certain period of time and continuously fed to the refining step at a predetermined flow rate, and wherein the refining conditions in the refining step are controlled according to one or more characteristics of the molten metal in the intermediate holding step.

    摘要翻译： 在连续熔炼，精炼和铸造过程中，其基本上是串联的，在燃烧式熔化炉中熔融和渗碳废钢，废铁和/或还原铁作为原料的步骤，通过吹炼 氧气，精炼和保持步骤和连续铸造步骤，其中在熔融和渗碳步骤和精炼步骤之间设置保持炉中的中间保持步骤，使得从熔炉中抽出的熔融金属保持在 中间保持炉一定时间，以规定的流量连续送入精炼工序，精炼工序中的精炼条件根据中间保持工序中的熔融金属的一个或多个特性进行控制。

    Float melting apparatus and method employing axially movable crucibles
    5.
    发明授权
    Float melting apparatus and method employing axially movable crucibles 失效
    采用轴向移动坩埚的浮法熔化装置和方法

    公开(公告)号：US5416796A

    公开(公告)日：1995-05-16

    申请号：US67149

    申请日：1993-05-26

    申请人： Akira Fukuzawa ,  Kazuyuki Sakuraya ,  Toshiaki Watanabe ,  Motoo Yamazaki ,  Tadashi Morita ,  Tatsuo Take ,  Michiru Fujita

    发明人： Akira Fukuzawa ,  Kazuyuki Sakuraya ,  Toshiaki Watanabe ,  Motoo Yamazaki ,  Tadashi Morita ,  Tatsuo Take ,  Michiru Fujita

    IPC分类号： F27B14/06 ,  F27D11/06 ,  H05B6/06 ,  H05B6/24 ,  H05B6/32 ,  H05B6/22

    CPC分类号： H05B6/32 ,  F27B14/063 ,  H05B6/24

    摘要： Apparatus to float and melt particularly small pieces of high-melting point metal continuously while making the amount of meltable liquid metal greater than the capacity of a crucible. A conductive crucible having segments includes an upper cylindrical crucible portion and a lower closed-end crucible portion. An induction coil is arranged outside the upper crucible portion, whereas an induction coil is arranged below the induction coil. The lower crucible portion is in contact with the upper crucible portion and located on the inside of the induction coil at the initial melting stage. The lower crucible portion is lowered as a columnar metal grows and solidifies between molten metal and the lower crucible portion. A continuous feeder continuously feeds cold material. A molten metal surface thermometer and a molten metal surface level gauge are arranged above the crucible. The operation of the continuous feeder is regulated within a desired range of values of the molten metal surface thermometer. On the other hand, the lower crucible portion is successively lowered within a desired range of values of the molten metal surface level gauge.

    摘要翻译： 连续地漂浮和熔融特别是小块高熔点金属的装置，同时使可熔化液体金属的量大于坩埚的容量。 具有节段的导电坩埚包括上圆柱形坩埚部分和下封闭端坩埚部分。 感应线圈设置在上坩埚部分的外侧，而感应线圈设置在感应线圈的下方。 下坩埚部分与上坩埚部分接触并且在初始熔化阶段位于感应线圈的内侧。 随着柱状金属在熔融金属和下坩埚部分之间生长和固化，下坩埚部分下降。 连续进料器连续供料冷材料。 熔融金属表面温度计和熔融金属表面液位计布置在坩埚上方。 连续进料器的操作被调节在熔融金属表面温度计的期望值范围内。 另一方面，下坩埚部分在熔融金属表面液位计的期望值范围内连续降低。

    Levitating and fusing device
    6.
    发明授权
    Levitating and fusing device 失效
    悬浮和定影装置

    公开(公告)号：US5394432A

    公开(公告)日：1995-02-28

    申请号：US992943

    申请日：1992-12-17

    申请人： Akira Fukuzawa ,  Kazuyuki Sakuraya ,  Toshiaki Watanabe ,  Motoo Yamazaki ,  Tadashi Morita ,  Tatsuo Take ,  Michiru Fujita

    发明人： Akira Fukuzawa ,  Kazuyuki Sakuraya ,  Toshiaki Watanabe ,  Motoo Yamazaki ,  Tadashi Morita ,  Tatsuo Take ,  Michiru Fujita

    IPC分类号： H05B6/32 ,  C22B9/16 ,  F27B14/06 ,  F27D21/00 ,  H05B6/24 ,  H05B6/22

    CPC分类号： F27B14/063 ,  C22B9/16 ,  F27D21/0035 ,  H05B6/24 ,  H05B2213/02 ,  Y02P10/253

    摘要： A plurality of segments 12 respectively formed of an electrically insulated conductive material such as copper or the like are disposed inside an induction coil 1 in the peripheral direction of the induction coil 1 to thereby construct a crucible 3. There is formed a small cylindrical hole 4 in the center of the bottom portion of the crucible 3. A magnetic flux is allowed to enter the crucible 3 from slits 15 respectively formed between the hole 4 and segments 12 and is then interlinked with an object to be heated. The slits 15 respectively defined by mutually adjoining segments 12 are arranged such that the width of the bottom portion thereof is greater than that of the cylindrical portion thereof. When the width of the slit in the bottom portion is increased, then a leakage flux to the crucible is increased which in turn increases a levitation force F. If there are further formed bottom slits only in the bottom portions of the segments to thereby increase the number of the slits in the bottom portion to be greater than that of the slits in the cylindrical portion, then the leakage flux is increased to thereby increase the levitation force F, and also the fused metal is supported at multiple points, which increases the stability S thereof.

    摘要翻译： 分别由诸如铜等的绝缘导电材料形成的多个段12在感应线圈1的周向方向上设置在感应线圈1的内部，从而构成坩埚3.形成小的圆柱形孔4 在坩埚3的底部的中心。允许磁通从分别形成在孔4和段12之间的狭缝15进入坩埚3，然后与待加热物体相互连接。 分别由相邻的部分12限定的狭缝15被布置成使得其底部的宽度大于其圆柱形部分的宽度。 当底部的狭缝的宽度增加时，向坩埚的泄漏通量增加，这又增加了悬浮力F.如果仅在段的底部形成底部狭缝，从而增加 底部的狭缝数量大于圆筒部分的狭缝的数量，则泄漏通量增加，从而增加悬浮力F，并且熔融金属也被支撑在多个点，这增加了稳定性 S。