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1. 发明专利

CA2019891A1 ELECTROMAGNETIC AGITATING METHOD IN MOLD OF CONTINUOUS CASTING OF SLAB 未知
公开(公告)号：CA2019891A1
公开(公告)日：1990-12-27
申请号：CA2019891
申请日：1990-06-26
申请人： KOBE STEEL LTD
发明人： SOEJIMA TOSHIYUKI , SAITO TADASHI , GENMA NOBUYUKI , KIMURA MASAYASU , KAIHARA YASUO
IPC分类号： B22D11/10 , B22D11/115 , B22D27/02 , B22D11/04 , B22D27/08 , B22D11/12
摘要： An electromagnetic agitating method in a casting mold in a slab continuous casting in which electromagnetic agitating devices for generating a thrust force in slab drawing direction are arranged at at least an inner wide surface of both inner and outer surfaces of the slab casting mold in a bending type continuous casting machine and the thrust force in the drawing direction applied to molten steel within the casting mold by the electromagnetic agitating devices is substantially applied from the narrow surface of said casting mold toward the center thereof in a range except a predetermined length to perform an electromagnetic agitation of molten steel.

2. 发明专利

JPH0518679A SLAG OUTFLOW DETECTING METHOD UPON DISCHARGING MOLTEN METAL 失效
公开(公告)号：JPH0518679A
公开(公告)日：1993-01-26
申请号：JP19699691
申请日：1991-07-10
申请人： KOBE STEEL LTD
发明人： SOEJIMA TOSHIYUKI , SAITO TADASHI , TSUBONE ITSUKI , AZUMA JUN , MAEDA SHINICHI , SUGANO KUNITAKA , SEMURA KOUICHIROU
IPC分类号： C21C5/46 , F27D3/14 , F27D3/15
摘要： PURPOSE:To improve the accuracy of slag cut by a method wherein the outflow of slag upon the final period of tapping is detected by connecting to a signal processing device and slag detecting sensibility is changed in accordance with the change of operating condition such as the change of the diameter of a tap hole or the like. CONSTITUTION:A process computer 15 is connected to a control panel 14 or a signal processing device 13 while the change of operating condition, such as the change of the diameter of a tap hole or the like, is inputted into the process computer 15. According to this method, the set value of detection of the outflow of slag whereat the operation of a pneumatic slag stopper 6 is to be started, can be changed. The sensibility of the outflow of slag in accordance with the change of an operating condition is increased or decreased by an arbitrary amount from 20%, for example, whereby coping to shift the transmitting timing of the operation starting command of the pneumatic slag stopper in an early period can be effected. In this case, the timing of slag cut in accordance with the kind of steel at more correct timing becomes possible whereby very accurate slag cut can be effected.

3. 发明专利

JPH0515956A CONTINUOUS CASTING METHOD 失效
公开(公告)号：JPH0515956A
公开(公告)日：1993-01-26
申请号：JP17124691
申请日：1991-07-11
申请人： KOBE STEEL LTD
发明人： SAITO TADASHI , KIMURA MASAYASU , IZUMITANI MASAHITO , UEDA TERU
IPC分类号： B22D11/128 , B22D11/20
摘要： PURPOSE:To provide continuous casting method, by which the development of position obtaining no light rolling reduction effect is reduced and the improvement of yield and productivity can be expected at the time of executing the light rolling reduction casting. CONSTITUTION:Plural sets (four sets) of roll stands 8 as applicable to light rolling reduction are arranged in the applied zone to light rolling reduction in the continuous casting, and by changing roll gap interval in the roll stands 8 as applicable to light rolling reduction, matching to variation of solidification completion position operated with a light rolling reduction position changing control device 9 based on informations of variation of casting velocity, variation of molten steel temp., variation of cooling condition, etc., during continuous casting, the applied position to light rolling reduction is shifted to the longitudinal direction of casting.

4. 发明专利

JPH0390257A ELECTROMAGNETIC STIRRING METHOD IN MOLD IN CONTINUOUS CASTING FOR SLAB 失效
公开(公告)号：JPH0390257A
公开(公告)日：1991-04-16
申请号：JP16468590
申请日：1990-06-22
申请人： KOBE STEEL LTD
发明人： SOEJIMA TOSHIYUKI , SAITO TADASHI , MOTOMA NOBUYUKI , KIMURA MASAYASU , KAIHARA YASUO
IPC分类号： B22D11/10 , B22D11/115
摘要： PURPOSE:To reduce gas bubble involving inclusion, etc., into descending system by acting thrust force in drawing direction with an electromagnetic stirring device arranged at inside wide face or outside wide face in a mold for slab in the range except the prescribed length toward center from narrow face in the mold. CONSTITUTION:The electromagnetic stirring device 2 generating the thrust in the drawing direction of slab S arranged at the inside wide face of bending arc of the mold M for slab in a bending type continuous casting machine or in addition to the electromagnetic stirring device 2, further, electromagnetic stirring device 2' generating the thrust in the drawing direction of slab S arranged at the outside wide face 1' of the bending arc, are used. At the same time, the thrust in the drawing direction given to the molten steel 5 with these electromagnetic devices 2, 2', is practically acted in the range except the prescribed length L toward the center from side ends 4 at right and left sides of the cast wide face 3. In this result, the molten steel stream 6 is induced in the molten steel 5 and discharging flow velocity of the molten steel stream 9 discharged toward the narrow face direction from the discharging hole 8 in a submerged nozzle 7, is reduced and entering depth of the molten steel stream 10 entered into the slab S is restrained to prevent invasion of the bubble into inner part of the slab.

5. 发明专利

JPS61186158A CONTINUOUS CASTING DEVICE FOR WEAKLY DEOXIDIZED STEEL 失效
公开(公告)号：JPS61186158A
公开(公告)日：1986-08-19
申请号：JP2578085
申请日：1985-02-12
申请人： KOBE STEEL LTD
发明人： SAITO TADASHI , ANZAI AKIRA , ANPUU JUNJI , MATSUDA YOSHIHIRO
IPC分类号： B22D11/10 , B22D41/58
摘要： PURPOSE:To decrease deposition and to improve the yield of an ingot as a result of non-oxidation casting by embedding porous refractories having a specific sectional area or above into the specific position on one intermediate side face of a flow regulating nozzle made of non-porous refractories in the lower position of the tap hole of a tundish and blowing an inert gas through said refractories. CONSTITUTION:The flow straightening nozzle 5 made of the non-porous refractories is interposed between an insert nozzle 4 and immersion nozzle 6 of the tundish 1. The porous refractories 15 are embedded to the one intermediate side face within a narrow range of about + or -30 deg. along the mold 2 surface of the nozzle 5 and the diameter thereof is made about >=15% of the outside diameter of the flow regulating nozzle. The deposition in the nozzle is decreased by blowing the inert gas through such refractories 15. The yield of the ingot is thus improved by the non-oxidation casting.

6. 发明专利

JPS61155251A FILTER FOR REMOVING MOLTEN STEEL INTERVENING MATTERS 失效
公开(公告)号：JPS61155251A
公开(公告)日：1986-07-14
申请号：JP27480984
申请日：1984-12-28
申请人： KOBE STEEL LTD , SHINAGAWA REFRACTORIES CO
发明人： SAITO TADASHI , KITA YUKIO , OSHIMA RYUZO , OTE AKIRA , ICHIKAWA KENJI , SUGIMOTO HIROYUKI , MORITA AKIHIRO
IPC分类号： C04B35/03 , C04B38/00 , C22B9/02

7. 发明专利

JPH09122548A DIGITAL TEACHING METHOD FOR OIL APPLYING ROBOT AND APPARATUS THEREFOR 失效
公开(公告)号：JPH09122548A
公开(公告)日：1997-05-13
申请号：JP28273595
申请日：1995-10-31
申请人： YAMAMURA GLASS CO LTD , KOBE STEEL LTD
发明人： TOJO KANEHIRO , AZUMA KATSUKI , SAITO TADASHI , HATA SHINICHI , IKEDA MOTOHIRO
IPC分类号： B25J9/22 , B05B12/00 , B05D3/00
摘要： PROBLEM TO BE SOLVED: To make it possible to easily and rapidly execute digital teaching of data setting on site by applying the discrete mold data affecting the position control of oil applying operation to a control means and changing the partial data relating to the movement and the moving loci of an oil applicator within master data in accordance with a difference in the mold data. SOLUTION: A control panel 51 digitally controls the operation of an oil applying robot 33 by receiving the control data from an FC computer 53 and an interface panel 52. This control panel 51 changes the partial data to be changed in correspondence to the difference in the mold data in the master data from the correlative relation between the necessary movement corresponding to the mold data to affect the position control of the oil applying movement, such as the kind of the metal molds to be used and the number of mold faces, etc., and the moving loci of the oil applicator by the mold data described above. The changed data is used in place of the corresponding partial data in the master data in combination with the previously taught master data.

8. 发明专利

JPH082487B2 失效
公开(公告)号：JPH082487B2
公开(公告)日：1996-01-17
申请号：JP6122691
申请日：1991-03-02
申请人： KOBE STEEL LTD
发明人： SAITO TADASHI , EBATO KOICHI , MATSUO KATSUYOSHI , FUJIMOTO HIDEAKI , MAEDA MASAHIRO
IPC分类号： B22D43/00 , B22D11/10 , B22D11/108 , B22D11/111

9. 发明专利

JPH02192861A METHOD FOR DETECTING JOINT PART OF CAST SLAB IN CONTINUOUS CASTING 失效
公开(公告)号：JPH02192861A
公开(公告)日：1990-07-30
申请号：JP1139789
申请日：1989-01-19
申请人： KOBE STEEL LTD
发明人： SAITO TADASHI , MORITSUGI TAKEJI , FUJIMOTO SUMIO , AJIGUCHI NAOYUKI
IPC分类号： B22D11/16
摘要： PURPOSE:To detect a joint part at good accuracy by taking average of surface temp. in a cast slab before reaching to the joint part of the cast slab, making the valve subtracting the prescribed temp. from this average surface temp. the set surface temp. and detecting the part at the temp. less than this set surface temp. as the joint part of the cast slab. CONSTITUTION:A detecting instrument 9 is constituted of a non-contacting type thermometer 11 set on the upper part of the cast slab 6 at upstream side of a cutter 7 and a computer 12 outputting cutting signal to the cutter 7 after calculating the cutting position at front and rear parts of the joint part 10 of the cast slab based on the inputted signal from this thermometer. At the time of forming the joint part 10 in a mold 5 by exchanging a tundish 3, the computer 12 starts to execute the temp. measurement of the cast slab. Into the computer 12, the measured temp. is inputted, for example, at interval of two sec and these inputted temps. are averaged, for example, at interval of five min and subtracts the prescribed temp. to make the set temp. This set temp. is corrected at every five min and the cuttings are surely executed at the preset cutting positions of front and rear parts to the joint part 10 of the cast slab. Instead of the surface temp. by measuring surface light quantity, the joint part can be detected, too.

10. 发明专利

JPH02170909A METHOD FOR PREDICTING COMPONENTS AT BLOW-END IN CONVERTER 失效
公开(公告)号：JPH02170909A
公开(公告)日：1990-07-02
申请号：JP23196789
申请日：1989-09-07
申请人： KOBE STEEL LTD
发明人： TSUBONE IWAO , SAITO TADASHI , YAMANA HISASHI , MAEDA SHINICHI , TAKEZOE HIDETAKA , OGAWA NAOTERU
IPC分类号： C21C5/28
摘要： PURPOSE:To assume concns. of Mn, P, S, etc., in the molten steel at blow-out at high accuracy for a short time by using the specific regression equation composed of the factors relating to the operational items of the concns. of Mn, P, S, etc., during blowing a converter, quantity of the sub-raw material, consumption of blowing oxygen, etc. CONSTITUTION:Molten steel sample is taken during blowing in the converter and concns. of [M]B in the molten steel during blowing are measured to at least one or more components in Mn, P and S, for example with quantmeter analysis method. Together with this, based on the regression equation: [M]S = [M]B +SIGMAalphaX1+ const. ([M]S: concns. in the molten steel at the blow-end, alpha: coefficient) composed of te factor X1 related to the operational items of one or more of the operational items among submaterial quantity, blowing oxygen consumption during time form sampling till blow-end, the remaining oxygen calculated quantity in a slag, oxygen partial pressure in the molten steel at the blow-end, the molten steel temp. at the blow-end, carbon concn. at the blow-end and the molten iron condition, [M]S is calculated. By this method, the concns. of Mn, P and S in the molten steel at the blow-end is assumed at high accuracy for a short time and the ratio of rapid steel tapping is improved.

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