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21. 发明专利

JPS62134151A ELECTROMAGNETIC STIRRER 失效
公开(公告)号：JPS62134151A
公开(公告)日：1987-06-17
申请号：JP27560385
申请日：1985-12-07
申请人： NIPPON STEEL CORP
发明人： NAITO SHUNTA , NIIOKA MASAKI
IPC分类号： B22D11/10 , B01F13/08 , B22D11/115
摘要： PURPOSE:To reduce power source capacity by making winding to the respective sides of ingot passages with the sides contiguous to each other on the extension line as one set. CONSTITUTION:The windings 2, 3 are formed to an iron core 1 having the two ingot passages by making winding to the respective sides in the conventional manner. The winding 4 is then formed to the sides 1 contiguous to each other on the extension line as one set. AC current of a frequency (f) is passed to the windings 2, 3 and the AC current of the frequency having the phase shifted by about 90 deg. from the phase of the windings 2, 3 is impressed to the winding 4. A clockwise rotating magnetic field is generated to the right ingot passage of the iron core 1 and the counter-clockwise rotating magnetic field is generated to the left ingot passage, respectively, according to the phase deviation of the AC currents between the windings 2, 3 and the winding 4. Since the number of turns is decreased by such method, the power source capacity is reduced.

22. 发明专利

JPS6277156A TWIN ROLL TYPE CONTINUOUS CASTING DEVICE 失效
公开(公告)号：JPS6277156A
公开(公告)日：1987-04-09
申请号：JP21830085
申请日：1985-09-30
申请人： NIPPON STEEL CORP , NITTETSU PLANT DESIGNING CORP
发明人： NIIOKA MASAKI , ISHIKAWA YOSHIYASU , KAMIYOSHI TOYOHIKO , ICHINOSE MAKOTO
IPC分类号： B22D11/06
摘要： PURPOSE:To prevent the formation of solidified shells on the inside wall of side dams by providing induction heaters in proximity to the side dams in the stage of passing the molten metal from a molten metal pool delineated of water cooled rolls and the side dams to a roll gap and producing a thin metallic sheet. CONSTITUTION:The induction heaters 7, 8 are disposed in proximity to the side dams 3, 4 so as to face the side dams. Current of a prescribed frequency is supplied from an AC power source to coils 7b, 8b of the heaters 7, 8. Magnetic fluxes are formed between both legs of the respective cores 7a, 8a and the magnetic fluxes pass through the inside of the molten metal 5 near the dams 3, 4 via the dams 3, 4 so that eddy current is generated in the molten metal 5 and the molten metal 5 generates heat. The molten metal 5 stored between the side dams 3, 4 is consequently heated or insulated and is thus prevented from solidification.

24. 发明专利

JPS60139103A PHASE CONTROLLER OF MOVING ARTICLE 失效
公开(公告)号：JPS60139103A
公开(公告)日：1985-07-23
申请号：JP25039683
申请日：1983-12-23
申请人： NIPPON STEEL CORP , NITTETSU PLANT SETSUKEI KK
发明人： SAITOU ICHIROU , TSURUYA YUTAKA , NIIOKA MASAKI
IPC分类号： B60L15/20 , B60L15/00
摘要： PURPOSE:To reduce the difference between the operating amount of a handle and the position of an article by applying a suppressing force corresponding to the above difference to the handle. CONSTITUTION:When an operating handle 4 is operated, a potentiometer 6 rotates to vary an output voltage. A comparison calculator 8 compares to calculate a signal inverted by an inverter 7 from the signal of the potentiometer 6 with an article position signal of the potentiometer 6, and applies a speed control signal through a forward/reverse discriminator 9 and an amplifier 10 to a drive source 2. On the other hand, after the output of the calculator 8 is applied to handle suppressing force calculators 12, 13, a dead zone is set and a gain is set, it is applied to an amplifier 15, and a handle suppressing force is outputted by a drive source controller 16. Thus, the difference of positions between the handle and article can be reduced.

25. 发明专利

JPS59215583A Ignition method on plasma molten steel heating 失效
标题翻译：等离子体钢加热点火方法
公开(公告)号：JPS59215583A
公开(公告)日：1984-12-05
申请号：JP8818483
申请日：1983-05-19
申请人： Nippon Steel Corp
发明人： NIIOKA MASAKI , KAWASAKI TAKUJIROU , KUDOU JIYUNICHI , KUWANO KAZUHIRO , TAKEDA YASUO , NAKAO YASUYUKI
IPC分类号： F27D11/08 , F27B3/08 , H05B7/18

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