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1. 发明专利

JPS56136255A CONTROL SYSTEM FOR CHARGING DEOXIDIZER 失效
公开(公告)号：JPS56136255A
公开(公告)日：1981-10-24
申请号：JP3749180
申请日：1980-03-26
申请人： NIPPON STEEL CORP , HITACHI LTD , HITACHI ENG CO LTD
发明人： TAKAHASHI MICHIAKI , HARIGAI YUUJI , NAGI MINORU , KAYAMORI TAKAAKI
IPC分类号： B22D7/00 , B22D27/20
摘要： PURPOSE:To automatically control the charging of a deoxidizer by obtaining the charging amount and charging timing of the deoxidizer for the next mold from the actual charing record of the deoxidizer for the previous mold. CONSTITUTION:When injection is started, an injection rate sampling device 18 monitors the rate of injection. On the other hand, when a rotary valve operates, a charging timing memory device 16 stores the rate of injection from an injection rate detector 19 and a charging sampling device 15. On completion of the entire injection, the total injection rate is obtained by an injection rate determining device 20. Next, when the intended injection rate to the next mold is set by an injection rate setter 22, an injection rate determining device 21 obtains a total intended injection rate Ns, and transmits the same to a sectional injection rate determining device 13. The device 13 obtains charging rates alpha', beta', gamma', and further obtains sectional charging times. A charging timing determining device 12 determines timings in such a manner as to charge the deoxidizer at uniform intervals. Next, on starting of the injecting of the next mold, a comparator 11 monitors charging timings with 19 and 17, and transmits the same to a rotary valve driving device 10, thereby performing the charging of the deoxidizer.

2. 发明专利

JPS559105A TEMPERATURE MEASURING METHOD 失效
公开(公告)号：JPS559105A
公开(公告)日：1980-01-23
申请号：JP8095878
申请日：1978-07-05
申请人： NIPPON STEEL CORP , HITACHI LTD
发明人： TAKAHASHI MICHIAKI , NAKANO TAKESHIGE , HAMADA YOSHITOSHI
IPC分类号： G01D1/00 , G01D1/02 , G01K7/00 , G01K13/00 , G08C25/00
摘要： PURPOSE:To perform measurement of the desired temperature in more precise order at the method of sampling temperature data and determine the determined temperature by mean value, by selecting the data necessary for obtaining mean value only on those whose deviations are exclusively below the preset value, and the operation to follow is made using only those selected data. CONSTITUTION:Temperature data are inputted at the computer, where selection is performed for adoption or rejection. Criterion for adoption or rejection is whether each datum is adequate as temperature input or not, and normally, it is judged by the upper and the lower limits of temperature of the article to be measured. The adopted datum, including the inputted datum, is judged by whether it satisfies the formula (2), and the qualified ones are calculated to obtain mean value, and the final decision is made in accordance with the specific characteristic of the article being measured by comparing the obtained mean value with the value of the previous measurement. This constitution enables covering the measurement of intrusion speed, etc., of the article being measured and the unstableness of the function of the device, and the precise measurement of the desired temperature can be performed.

3. 发明专利

JPS57134702A FAIL SAFE SYSTEM 失效
公开(公告)号：JPS57134702A
公开(公告)日：1982-08-20
申请号：JP1813781
申请日：1981-02-12
申请人： NIPPON STEEL CORP , HITACHI LTD , HITACHI CONTROL SYST
发明人： TAKAHASHI MICHIAKI , HAMADA YOSHITOSHI , USUI TOSHIO
IPC分类号： G06F11/00 , G05B9/02 , G06F11/14
摘要： PURPOSE:To prevent runaway of a main device in advance, by detecting the production of failure of a predetermined program and disconnecting the program relating to the failed program from on-line processing. CONSTITUTION:In making on-line real time processing through the use of a control computer, the production of failure in a predetermined program is detected, and a program relating to the failed program is disconnected from the on-line processing and the on-line real time processing is made. For example, if either of programs constituting a control system is in failure, the disconnection of the program is executed depending on the priority level predetermined for the program.

4. 发明专利

JPS559106A TEMPERATURE MEASURING METHOD 失效
公开(公告)号：JPS559106A
公开(公告)日：1980-01-23
申请号：JP8095978
申请日：1978-07-05
申请人： NIPPON STEEL CORP , HITACHI LTD
发明人： TAKAHASHI MICHIAKI , HAMADA YOSHITOSHI
IPC分类号： G01D1/00 , G01D1/02 , G01K7/00 , G01K13/00 , G08C25/00
摘要： PURPOSE:To perform measurement of the desired temperature in more precise order at high temperature measurement by sampling obtained temperature data, and selecting the data necessary for obtaining mean value whose deviations are exclusively below the preset value and the operation to follow is made using only those selected data. CONSTITUTION:Temperatures are collected and sampled from the initiation of measurement, and when the number of sampling values, whose sampling value deviations become less than th prescribed figure, exceed the prescribed value, this value is defined as the stable area. In the continuous sampling values of M number which satisfy the formula (2) wherein T0 denotes temperature at the initiation of temperature measurement, and the formula (1) represents the temperatures which follow, mean value Ta is obtained by the formula (3), and determination of the next stable area is started using TM+1 as the next T0 to be employed. In case when temperature values which do not satisfy the formula (2) fail to attain M number in continuity, a point where the formula (2) is not satisfied is determined as the next T0, and the operation to obtain the next stable area is started using this newly determined T0 as the initiation temperature.

5. 发明专利

JPS55115147A BACKUP METHOD OF PROGRAM 失效
公开(公告)号：JPS55115147A
公开(公告)日：1980-09-04
申请号：JP2194079
申请日：1979-02-28
申请人： NIPPON STEEL CORP , HITACHI LTD
发明人： TAKAHASHI MICHIAKI , ARAMAKI TOSHIHIDE , USUI TOSHIO , HAMADA YOSHITOSHI
IPC分类号： G06F11/14 , G06F9/06 , G06F11/00
摘要： PURPOSE:To continue the ON-line operation, by storing the program before the increase or correction of program function in the computer as back up and returning it to the program before automatically, if failure is taken place to the program of increased of corrected function. CONSTITUTION:The control computer 1, magnetic tape unit 2, auxiliary memory unit 3 and CRT unit 9 are provided. The amount of charge of ore and coke is read in the unit 3 with the unit 2 through the program P-6, the files F-7, F-8 are set which are inside the unit 3, and operation is made with the ON-line control based on this data. Further, when the function of the programs P-4 nd P-5 is increased or corrected to set the files F-7, F-8, the programs P-4 and P-5 before the increase or correction and kept in the unit 3. If failure is taken place to the program of the files F-7, F-8, the programs are automatically returned to the programs P-4 and P-5, to continue the ON-line operation.

6. 发明专利

JPH0635961B2 失效
公开(公告)号：JPH0635961B2
公开(公告)日：1994-05-11
申请号：JP1344286
申请日：1986-01-24
申请人： EDDIO CORP , NIPPON STEEL CORP
发明人： HAYASHIBE SHOJI , SAWADA ZENICHI , TAKAHASHI MICHIAKI , YOSHIDA MITSUO , NITSUTA SHIGEYUKI
IPC分类号： G01N27/83

7. 发明专利

JPS62158988A METHOD OF REPAIRING SMELTING VESSEL BY MICROWAVE HEATING 失效
公开(公告)号：JPS62158988A
公开(公告)日：1987-07-14
申请号：JP29838185
申请日：1985-12-30
申请人： NIPPON STEEL CORP
发明人： YAMADA YUKIO , KASHIWAKURA YOSHIMITSU , SAKAMOTO HIROSHI , TAKAHASHI MICHIAKI
IPC分类号： F27D1/16 , C21C5/46 , C21C7/10

8. 发明专利

JPS626163A ROTARY MAGNETIC FIELD TYPE EDDY CURRENT EXAMINATION METHOD 失效
公开(公告)号：JPS626163A
公开(公告)日：1987-01-13
申请号：JP14616685
申请日：1985-07-03
申请人： NIPPON STEEL CORP
发明人： OBARA SHINJI , TAKAHASHI MICHIAKI , YOSHIDA MITSUO , MIYAZAWA KAZUYOSHI , FUJISAWA JUNICHI
IPC分类号： G01N27/90
摘要： PURPOSE:To realize the same effect electrically and at a high speed instead of a prover rotating system by applying a three-phase alternating current of a low frequency to which a flow detecting frequency has been superposed, to an exciting coil, and rotating a magnetic field. CONSTITUTION:Plural detecting coils 7 are placed in the peripheral direction of a material to be inspected 1, and also an exciting coil 6 is placed in its outside. A three-phase alternating current of sources of Hz generated by a three-phase AC power source 9, and a high frequency from a high frequency power source 10 for generating a high frequency of scores of kHz becomes a flaw detecting frequency are synthesized by a waveform synthesizer 11, and when the synthesized three-phase alternating current is made to flow to the exciting coil 6, a magnetic field rotates in the peripheral direction of a section of the material to be inspected 1 at a speed which is determined by the number of poles of the exciting coil 6 and the frequency of the three-phase alternating current. The detecting coil 7 detects an eddy current signal induced on the surface of the material to be inspected 1, and whether a flow exists on the surface or not is detected by a detector 12, and recorded in a recorder 13.

9. 发明专利

JPS63196466A METHOD OF CONTROLLING WIRE WIND-UP MACHINE 失效
公开(公告)号：JPS63196466A
公开(公告)日：1988-08-15
申请号：JP2899787
申请日：1987-02-10
申请人： NIPPON STEEL CORP
发明人： TAKAHASHI MICHIAKI , KIMURA KOZO , KASHIWAKURA YOSHIMITSU , TAKAHASHI KEIICHI
IPC分类号： B65H59/36 , B65H59/38
摘要： PURPOSE:To make it possible to control the position of the leading end of a wire relative to the bottom plate of a wind-up machine by compensating the rotating angle of the wind up machine at the initiating point of wind up having been previously set, in accordance with the amount of slippage of the leading end of the wire on one side surface of the wind-up machine. CONSTITUTION:A computing and processing machine 19 delivers a compensating signal to a motor control device 17 so that the rotating angle of a wind up machine 12 at the time when a wire 1 makes contact with the outer wall 8 of the wind-up machine 2, is equal to a previously set rotating angle. Further, the rotating angle of the wind-up machine 12 at the time when the leading end of the wire makes contact with the outer wall 8 of the wind-up machine is controlled. The above-mentioned control steps are repeated during such a period that the leading end of the wire reaches the wind-up machine 2 after it passes over a detector 142. Thus, the rotating angle of the wind-up machine 12 is more precisely set to the set value when the leading end of the wire makes contact with the outer wall 8 of the wind-up machine. Accordingly, it is possible to control the position of the leading end of the wire relative to the bottom plate 4 of the wind-up machine.

10. 发明专利

JPS635815A PLATE WIDTH CONTROL METHOD FOR HOT STRIP MILL 失效
公开(公告)号：JPS635815A
公开(公告)日：1988-01-11
申请号：JP14762986
申请日：1986-06-24
申请人： NIPPON STEEL CORP
发明人： WAKAMATSU YUKIO , SENDA YUJI , TAKAHASHI MICHIAKI
IPC分类号： B21B37/00 , B21B37/22
摘要： PURPOSE:To control a plate width with high accuracy without use of a width gage and a load cell by rolling a strip by correcting a horizontal spread factor and a torque arm factor based on a difference between a calculated and a measured electric current of an edger motor. CONSTITUTION:An electric current to an edger driving motor 4 is inputted to a learning arithmetic unit 10 as a measured electric current by a shunt 5 and the unit 10 calculates a horizontal spread factor KR correcting errors in a width spread amount and a torque arm factor lambdaa correcting errors in an edger limit amount based on the measured electric current and a calculated electric current by a prescribed equation and inputs the value of the above factors to an edger setting calculation device 11. When the succeeding strip is fed, a control signal based on the above correction values is outputted to an edger opening control motor 12 to perform an upset of an edger. Therefore, a plate width is controlled with high accuracy without use of a width gage and a load cell.

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