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1. 发明专利

JPS5890353A HORIZONTAL CONTINUOUS CASTING METHOD 失效
公开(公告)号：JPS5890353A
公开(公告)日：1983-05-30
申请号：JP18888081
申请日：1981-11-24
申请人： SUMITOMO METAL IND
发明人： FUKUMOTO KENZOU , WATABE TADAO
IPC分类号： B22D11/04 , B22D11/10 , B22D11/103 , B22D11/115 , B22D41/60
摘要： PURPOSE:To prevent the erosion of the refractories of a connecting nozzle and to normalize the position where the solidification of a solidified shell initiates by heating the molten steel near the connecting nozzle by the electromagnetic induction effect of an induction coil mounted externally to the nozzle and applying a repulsive effect upon the connecting nozzle. CONSTITUTION:Induction current is run in molten steel 5 by the electromagnetic induction effect of an induction coil 7 mounted externally to a connecting nozzle 4 in a horizontal continuous casting installation, and the molten steel 5 is heated by this induction current. The solidification of the steel 5 in the nozzle 4 is prevented as far as possible by the heating effect thereof. Electromagnetic force acting in the central direction (arrow direction) of the nozzle 4 is applied to the steel 5 by the magnetic line of force of the coil 7 and the magnetic line of force of the induced current. Thus the weight and tacky force of the steel 5 acting upon the surface of the nozzle 4 are decreased, whereby the erosion of the nozzle 4 is decreased. Here, 1 denotes a steel mold which is formed water- coolably of, for example, the inside part and 3 a tundish nozzle, respectively.

2. 发明专利

JPS5750249A Production of clad steel ingot 失效
标题翻译：生产钢铁
公开(公告)号：JPS5750249A
公开(公告)日：1982-03-24
申请号：JP12542080
申请日：1980-09-09
申请人： Sumitomo Metal Ind Ltd
发明人： SHIRAI YASUTA , KARAMATSU TAKAO , FUKUMOTO KENZOU
IPC分类号： B22D7/02 , B22D23/10 , B22D27/02
摘要： PURPOSE: To control casting speed and conducting electric current in such a way as to meet the rate of electrode consumption, and improve the production efficiency of clad steel ingots by beforehand measuring the relations between the melt level of molten steel and the rate of consumption of electrodes.
CONSTITUTION: Such a control system which controls the ascending rate of the melt level in a mold so as to coincide with a preset pattern for electrode consumption rates is constituted by an antenna 18 and a body 17 of a microwave rangefinder, a minicomputer, and a sliding nozzle 16. Electricity is applied between an electrode plate immersed in a molten metal slag bath and a clad plate 3. At this time, the ascending rate of the melt level is controlled by as much as to meet the consuming length of said plate 4 in accordance with the consuming rate of the electrode plate 4 owing to the resistance heating of the molten slag 2 and if necessary, the conducting electric current is controlled.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：通过事先测量钢水熔融水平与消耗率之间的关系，以控制电极消耗速率来控制铸造速度和导电电流，提高复合钢锭的生产效率电极。构成：这样的控制系统，其控制模具中的熔融水平的上升率，以便与用于电极消耗速率的预设模式一致，由微波测距仪，小型计算机和微型计算机的天线18和主体17构成滑动喷嘴16.在浸入熔融金属渣槽的电极板和复合板3之间施加电力。此时，熔化水平的上升速率受到如下限制：满足所述板4的消耗长度根据熔融渣2的电阻加热导致的电极板4的消耗速度，如果需要，可以控制导通电流。

3. 发明专利

JPS5570450A PRODUCTION OF CLAD STEEL 失效
公开(公告)号：JPS5570450A
公开(公告)日：1980-05-27
申请号：JP14451378
申请日：1978-11-22
申请人： SUMITOMO METAL IND
发明人： KIMURA TOMOHIKO , FUKUMOTO KENZOU , WATANABE TADAO , SHINMOTO TAKEO
IPC分类号： B22D19/16 , B22D11/00
摘要： PURPOSE:To form an even alloy layer on slab surface layer with good volume productivity and workability by providing a partition wall which is partly dipped below molten steel level within a continuous casting mold and supplying a fixed amount of molten alloy between the partition wall and the inside wall of the mold by an electromagnetic pump thereby adding the same to the molten steel. CONSTITUTION:Molten steel is injected from a tundish 2 into a continuous casting mold through an immersion nozzle 3. The alloy 8 which has beforehand been melted in a melting furnace 7 is supplied at a fixed amount by an electromagnetic pump 9. While inert gas is being blown from an inert gas pipe 12 between a refractory-made partition wall 6 and the inside wall of the mold 1, the alloy is added to the molten steel 4 to make its diffusion easier while preventing its oxidation. When the molten alloy 8 is added, it forms the solute stagnating area of the alloy 8 under the level of the molten steel 4 and while this portion descends together with the molten steel 4 in the mold 1, it is cooled and solidified, whereby the alloy layer is formed on the slab surface part.

4. 发明专利

JPS5842763A CONTINUOUS HOT DIPPING DEVICE FOR STEEL STRIP 失效
公开(公告)号：JPS5842763A
公开(公告)日：1983-03-12
申请号：JP14202581
申请日：1981-09-08
申请人： SUMITOMO METAL IND
发明人： KODAMA MINORU , IIYOSHI OSAMU , KIMIWADA NORIYUKI , FUKUMOTO KENZOU , YAMAZAKI NORIO
IPC分类号： C23C2/20 , C23C2/24
摘要： PURPOSE:To prevent the transverse oscillation of a steel strip in a titled device by installing an induction type linear motor on the upper stream side than a steering rolls in the cooling zone of a continuous heat treatment furnace and acting the thrust in the direction opposite from an advancing direction upon the steel strip. CONSTITUTION:A steel strip 1 passed through a continuous heat treatment furnace 2 is dipped in a plating bath 4, and is regulated of the coating weight of plating by gas wiping nozzles 6. The strip passes through a zero spangle device 7 and a galvanealing furnace 8 and is coiled. During this time, the strip is acted with tensile forces by bridle rolls 91, 92, but the tensile forces are weakened by the elongation generated in the steel strip by the effect of the heat of the furnace 2; therefore the strip is apt to oscillate transversely during the passage through the nozzles 6, the device 7 and the furnace 8. Therefore, electricity is conducted to a linear motor 10 to act the thrust in the direction opposite from the advancing direction of the strip 1 upon the strip 1 during operation. The tension on the strip 1 during the passage through the furnace 2 is weakened by said action and the tension on the strip 1 after the passage through the bath 4 is increased, whereby the transverse oscillation of the strip is prevented.

5. 发明专利

JPS564357A RABBLING METHOD OF UNFROZEN MOLTEN METAL IN CONTINUOUS CASTING 失效
公开(公告)号：JPS564357A
公开(公告)日：1981-01-17
申请号：JP7927579
申请日：1979-06-23
申请人： SUMITOMO METAL IND
发明人： KOBAYASHI SUMIO , SUGITANI YASUO , ISHIMURA SUSUMU , KIMURA TOMOHIKO , FUKUMOTO KENZOU
IPC分类号： B01F13/08 , B22D11/10 , B22D11/115 , B22D11/12 , B22D27/02
摘要： PURPOSE:To enable the selection of the optimum magnet shape, size and set position by which sufficient rabbling may be done even with a thick slab without removal or diameter-reduction or rolls by providing the magnetic on the back of the slab support roll at the time of flowing the molten metal in the slab by electric current and magnetic field. CONSTITUTION:During the time until the slab perfectly freezes from mold part, the slab 1 has a frozen shell 2 and unfrozen molten steel 3. Between these, a DC electromagnet 4 is provided to one side of the slab with the magnetic pole being opposed to the face in the width direction of the slab, for example, on the back of the upper slab support roll group 51. The magnetic field 6 of which the main direction of the magnetic lines of force is perpendicular to the slab pulling direction 12 and in the slab thickness direction is generated in the slab. On the other hand, direct current 10 is flowed approximately parallel to the direction 12 from the brushes 71 provided to the rolls 81, 82, 91, 92 just before and behind the roll group 51 and the lower side roll group 52 opposing thereto, respectively to 72. As a result of this, the mutual action of the magnetic lines 6 of force and the electric current 10 flowing in the slab causes the electromagnetic force 11 to be acted upon the slab of these portions in the direction perpendicular to both of these, whereby the molten steel is flowed and rabbled in its main direction.

6. 发明专利

JPS5570451A PRODUCTION OF CLAD STEEL 失效
公开(公告)号：JPS5570451A
公开(公告)日：1980-05-27
申请号：JP14451478
申请日：1978-11-22
申请人： SUMITOMO METAL IND
发明人： FUKUMOTO KENZOU , KIMURA TOMOHIKO , SHINMOTO TAKEO
IPC分类号： B22D19/16 , B22D11/00
摘要： PURPOSE:To form an even alloy layer on slab surface layer part with good volume productivity and workability by feeding the alloy wire which is supplied with current with a power feed shoe between a partition wall which is partly dipped below molten steel level and has an electrode and the inside wall of a continuous casting mold and arc melting the alloy to liquid drops. CONSTITUTION:Molten steel 4 is injected into a continuus casting mold 1 from a tundish 2 through an immersion nozzle 3. An alloy wire or tape of Ni or Cr is sent from a wire drum 11 onto the molten steel 4 surface of the mold 1 through driving of pinch rolls 12. A partition wall 7 serving also as an electrode 6 is provided by being partly dipped near the inside wall of the mold 1. On the other hand, high voltage current is flowed via AC-DC converter 14 from a power source 15 to the wire 8 through a power feed shoe 9 to cause the arc melting of the wire between the partition wall 7 and the inside wall of the mold 1. Inert gas is blown into a guide pipe 10 to add and diffuse the alloy having been molted to liquid drops into the molten steel 4. The liquid drop alloy forms a solute stagnating area under the molten steel surface and this is cooled and solidified to become an alloy layer.

7. 发明专利

JPS5235740A METHOD TO CONTROL TENSION FOR CONTINIOUS ROLLING MILL 失效
公开(公告)号：JPS5235740A
公开(公告)日：1977-03-18
申请号：JP11228975
申请日：1975-09-17
申请人： SUMITOMO METAL IND
发明人： YAMASHITA SATONARI , FUKUMOTO KENZOU
IPC分类号： B21B37/48 , B21B37/00 , B21B38/06

8. 发明专利

JPS583959A METHOD AND DEVICE FOR CONTROLLING WEIGHT OF HOT DIP PLATED ZINC IN CONTINUOUS ZINC HOT DIPPING 失效
公开(公告)号：JPS583959A
公开(公告)日：1983-01-10
申请号：JP9958581
申请日：1981-06-29
申请人： SUMITOMO METAL IND
发明人： FUKUMOTO KENZOU , YAMASHITA RIYOUYA , KOYASU MITSUHIKO , KODAMA MINORU
IPC分类号： C23C2/20
摘要： PURPOSE:To decrease the variance in the weights of hot dip-plated zinc upon a strip by maintaing the distance from the surfaces of the strip and the leading ends of the nozzles of gas wiping devices at certain intended value by moving the gas wiping devices in correspondence to the oscillations of the strip. CONSTITUTION:A strip 5 which advances in an arrow direction and is stuck with zinc in a zinc plating bath 1 is passed between wiping nozzles 3 and 3, whereby the weights of hot dip-plated zinc are controlled. Here, the amplitudes of the strip 5 oscillating between pinch rolls 12 and top roll 4 are detected 9, and the detection signals thereof are fed to an arithmetic controller 10. The controller 10 calculates the amplitude of the strip 5 in the set position of the nozzles in accordance with said signals, and feeds the signals corresponding to these to servocontrol valve mechanisms 7. The mechanism 7 supplied with working fluid of high pressure controls the flow rates and directions of the working fluid according to the signals from the controller 10 and feeds the controlled working fluid to driving devices 6 consisting of oil hydraulic cylinders which in turn move and control the nozzles 3 in such a way that the spacings from the strip 5 are maintained at a constant set value.

9. 发明专利

JPS5636363A PRODUCTION OF STEEL INGOT 失效
公开(公告)号：JPS5636363A
公开(公告)日：1981-04-09
申请号：JP11095079
申请日：1979-08-30
申请人： SUMITOMO METAL IND
发明人： OKAMOTO SETSUO , MARUKAWA YUUJIYOU , HAMANA TAKATOSHI , FUKUMOTO KENZOU
IPC分类号： B22D7/00 , B22D27/04
摘要： PURPOSE:To produce a steel ingot of high quality with a high yield at the time of casting the steel ingot of the short sides in the horizontal section larger than the height by causing the molten steel in the mold to freeze unidirectionally upward from the bottom and removing the thickly segregated molten steel finally remaining in the head part of the mold. CONSTITUTION:A mold 22 is placed on a molding board 21 and a heat insulating material 27 is disposed on the inner side thereof. Molten steel 23 is injected into this mold and is allowed to freeze unidirectionally upward from the bottom. Since the heat insulating material 27 is disposed on the inner surface of the mold 22, the molten steel 23 is hardly cooled from the side face and is cooled and frozen from the bottom. Finally, the thickly segregated molten steel remained in the uppermost part of the frozen steel ingot is removed together with molten slag and heat retaining material 26 into a heat-resistant vessel 25 with an electromagnetic pump 24 just before the freezing. There are no thickly segregated portions of C, S, P, etc. in the upper part of the steel ingot, and the steel ingot of good quality may be produced with a high yield.

10. 发明专利

JPS55128522A COOLING WATER CIRCULATING CIRCUIT IN CONVERTER EXHAUST GAS TREATING APPARATUS 失效
公开(公告)号：JPS55128522A
公开(公告)日：1980-10-04
申请号：JP3536079
申请日：1979-03-26
申请人： KAWASAKI HEAVY IND LTD , SUMITOMO METAL IND
发明人： GOTOUDA HIDEMI , IWAMOTO SUMIO , ASAI TAKEJI , FUKUMOTO KENZOU
IPC分类号： C21C5/38 , C21C5/40 , F27D17/00
摘要： PURPOSE:To recover the holding heat of an exhaust gas cooling water as well as to stabilize the operation of an exhaust gas cooler by a method wherein a ''Flon'' evaporating circuit is provided between a high temp. water tank of a high temp. exhaust gas cooling apparatus of a converter and a heat exchanger as well as a bypass circuit is provided to a heat exchanger. CONSTITUTION:The high temp. exhaust gas issued from a converter M is cooled by a cooler 1 and a high temp. cooling water is stored in a high temp. water tank 3 and the temp. thereof is lowered by discharging heat in a heat exchanger 5 to introduce into a low temp. water tank 6 and, again, the said low temp. water is supplied as an exhaust gas cooling water to a cooler 1. In this time, a pipe conduit is branched in a high temp. water flowd passage 10 and a high temp. water is intorduced into a ''Flon'' evaporator 14 to evaporate ''Flon'' and the electricity is generated by a ''Flon'' turbine or the like. The temp. lowered cooling water is entered to a warm water tank 6 through a heat exchanger 5. Moreover, in this case, a bypass circuit 17 is provided to a heat exchanger to adjust the cooling water temp. in an inlet of a warm water tank 6 as well as to eliminate the change of a cooling water temp. in an inlet of a warm water tank 6 and the operation of a cooler 1 is stabilized.

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