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1. 发明专利

CA1042324A METHOD OF HEAT-TREATMENT OF WELDED PIPE AND APPARATUS THEREFOR 未知
公开(公告)号：CA1042324A
公开(公告)日：1978-11-14
申请号：CA240408
申请日：1975-11-25
申请人： NIPPON STEEL CORP
发明人： GONDO HISASHI , NAKASUGI HAJIME , TANIMOTO TERUO , KIMURA TSURUGI , YAMAMOTO TOSHIO , SAKIMOTO TSUTOMU , OKATANI HIDEYUKI
IPC分类号： C21D9/08 , C21D9/50
摘要： In the continuous heat treatment of welded pipe having a reinforcement of weld head as the pipe is travelling in the direction of its axial line, rapid induction heating is applied to bring the entire pipe to a desired temperature. A local heating of the bead is applied immediately after such induction heating, so as to make the temperature difference between the base metal of the pipe and the lead smaller than the limit of allowance, and the heated pipe is subsequently cooled. Loca heating of the bead may be done by means of a high-frequency induction heating coil, a burner, a plasma arc, or a laser.

2. 发明专利

DE2552401A1 未知
公开(公告)号：DE2552401A1
公开(公告)日：1976-08-12
申请号：DE2552401
申请日：1975-11-22
申请人： NIPPON STEEL CORP
发明人： GONDO HISASHI , NAKASUGI HAJIME , TANIMOTO TERUO , KIMURA TSURUGI , YAMAMOTO TOSHIO , SAKIMOTO TSUTOMU , OKATANI HIDEYUKI
IPC分类号： C21D9/08 , C21D9/50

3. 发明专利

FR2292772A1 未知
公开(公告)号：FR2292772A1
公开(公告)日：1976-06-25
申请号：FR7536207
申请日：1975-11-26
申请人： NIPPON STEEL CORP
发明人： GONDO HISASHI , NAKASUGI HAJIME , TANIMOTO TERUO , KIMURA TSURUGI , YAMAMOTO TOSHIO , SAKIMOTO TSUTOMU , OKATANI HIDEYUKI
IPC分类号： C21D9/08 , C21D9/50 , C21D1/34

4. 发明专利

JPH04294811A METHOD FOR CONTROLLING MEANDERING IN ROLLING MILL 失效
公开(公告)号：JPH04294811A
公开(公告)日：1992-10-19
申请号：JP5992491
申请日：1991-03-25
申请人： NIPPON STEEL CORP
发明人： SAITO HIROSHI , SAKIMOTO TSUTOMU , FUKUI NOBUO
IPC分类号： B21B37/00 , B21B37/68 , G05B13/02 , G06F17/11
摘要： PURPOSE:To reduce the working capacity of a memory of a meandeling controlling computer and a contrll calculating time by reducing orders of the meandering controlling system and orders of the compensator to the meandering controlling system through a contraction design method. CONSTITUTION:When a dynamic compensator C to the meandering contraction system is designed, the following mathematical expressions I, are obtained. Expression I: dWa/dt=FsXWa+GsXy, expression II: Ua=HsXWa+DsXy, where Wa is a variable of state, Fs is a system constant, Gs is an input constant, Hs is an output constant, Ds is a transfer constant, these constants respectively satisfy arrangement of characteristic values or minimize a secondary form evaluation function. It is possible to realize a controller possible to partially control meandering generating part only by applying the contraction dynamic compensator C shown by these mathematical expressions I, II as a meandering control arithmetic unit.

5. 发明专利

JPH03152093A LIFTING STEEL PLATE QUANTITY CONTROL DEVICE FOR LIFTING ELECTROMAGNET 失效
公开(公告)号：JPH03152093A
公开(公告)日：1991-06-28
申请号：JP29309889
申请日：1989-11-10
申请人： NIPPON STEEL CORP
发明人： MICHIOKA TSUTOMU , YAMANOJI TAKASHI , FUKUTANI KAZUHIKO , SAKIMOTO TSUTOMU
IPC分类号： B66C1/08 , B66C1/00 , G05F7/00 , H01F7/20
摘要： PURPOSE:To adjust the number of steel plates to be lifted to a specified quantity by calculating a required magnetic flux quantity for a required quantity of steel plates to be lifted to set the calculated magnetic flux quantity to a lifting electromagnet, and changing the magnetic flux so that the calculated steel plate quantity conforms to the required quantity of steel plates to be lifted. CONSTITUTION:A lifting steel plate quantity control device is provided with a current detecting means 4 for detecting current values of a lifting electromagnet 2, and a magnetic flux detecting means 3 for detecting magnetic flux between the lifting electromagnet 2 and the steel plates sucked by the magnet. Then, the current value of the current detecting means 4 and the magnetic flux quantity of the magnetic flux detecting means 3 are introduced into the relationship between a known current value, magnetic flux of the lifting electromagnet 2, and the quantity of steel plates sucked by the lifting electromagnet 2 to calculate the quantity of steel plates to be lifted by the lifting electromagnet 2 by means of a lifting quantity judging means 5. From the relationship between the magnetic flux quantity of the lifting electromagnet 2 and the quantity of steel plates to be lifted, a required magnetic flux quantity corresponding to the required quantity of steel plates to be lifted is calculated to be set to the lifting electromagnet 2, and the magnetic flux quantity of the lifting electromagnet 2 is changed by magnetic flux command value control means 1, 7, 8 so that the quantity of steel plates calculated by the lifting quantity judging means 5 conforms to the required quantity of steel plated to be lifted.

6. 发明专利

JPH0338279A METHOD FOR ADJUSTING PAINTING FILM THICKNESS OF ROLL TYPE COATING MACHINE 失效
公开(公告)号：JPH0338279A
公开(公告)日：1991-02-19
申请号：JP16992189
申请日：1989-07-03
申请人： NIPPON STEEL CORP
发明人： SAKIMOTO TSUTOMU , AZUMA TORU , ANZAI KAZUTAKA , YAMAZAKI KATSUMI
IPC分类号： B05D1/28 , B05C1/08 , B05D3/00
摘要： PURPOSE:To make a film thickness constant by calculating a roll peripheral speed ratio based on a roll peripheral speed preset value and multiplying a line speed by the roll peripheral speed ratio to operate a roll peripheral speed order. CONSTITUTION:An applicator roll peripheral speed ratio setting part 14 performs operation to automatically set the peripheral speed ratio A of an APR 7 corresponding to a line speed v. The peripheral speed ratio A is applied to a multiplier 16 to perform the multiplication with the line speed V and outputted as an APR peripheral speed order Vref. The rotary state of an AC motor 10 is detected by a PLG 12 and the output pulse thereof is counted by a counter 21. An applicator roll peripheral speed operation means 17 operates the peripheral speed result value VFBK of the APR 7 on the basis of the count value. This value is checked by the subtractor 41 of a proportional integration circuit 40 and the APR peripheral speed order Vref is subjected to addition processing by an adder 43.

7. 发明专利

JPH0310123A ABNORMALITY DETECTING APPARATUS UTILIZING ACOUSTIC ANALYSIS 失效
公开(公告)号：JPH0310123A
公开(公告)日：1991-01-17
申请号：JP14472989
申请日：1989-06-07
申请人： NIPPON STEEL CORP
发明人： SAKIMOTO TSUTOMU
IPC分类号： G01H17/00
摘要： PURPOSE:To decrease labor required for judging abnormality and to improve efficiency in abnormality diagnosis by driving a microphone up and down and left and right, and scanning the entire region to be monitored. CONSTITUTION:The sounds generated at various parts of a device 1 are collected with a sound collecting microphone 2. The sounds are transduced into sound wave signals. The sound wave signals are converted 12 into digital data. A Frouier transformation device 13 analyzes the power spectrum of the collected sound waves based on the sound wave data. The microphone 2 is made to scan in the X and Y directions in two dimensions when the device 1 is normal, and the analyzed data of the device 13 at this time are written in a data storage memory 14 in correspondence with the X-Y scanning position. At the time of actual monitoring, the data are read out of the memory 14 in correspondence with the X-Y position to which the microphone 2 is directed in synchronization with the X-Y scanning of the microphone 2. Then, the present analysis data of the device 13 are compared with the reference value which is read out of the memory 14 in a sound wave diagnostic device 15. When the deviation between the reference value and the present analysis data exceeds the preset value, the abnormal signal is generated. Then the picked-up image of the abnormal- sound generating part is obtained in a camera monitor 11 in response to the abnormal signal.

8. 发明专利

JPS637678B2 失效
公开(公告)号：JPS637678B2
公开(公告)日：1988-02-17
申请号：JP13868184
申请日：1984-07-04
申请人： NIPPON STEEL CORP
发明人： SAKIMOTO TSUTOMU , SAWADA KENZO , KAWAGUCHI TADASHI
IPC分类号： H05B6/06 , H05B6/36 , H05B6/44

9. 发明专利

JPS6116489A Induction heater 失效
公开(公告)号：JPS6116489A
公开(公告)日：1986-01-24
申请号：JP13753384
申请日：1984-07-03
申请人： Nippon Steel Corp
发明人： SAKIMOTO TSUTOMU , JITSUKATA YOSHIKAZU , WATANABE TAKAHITO , ISHITA YOSHIYUKI
IPC分类号： H05B6/10

10. 发明专利

JPS6035973A GROUP START CONTROLLING METHOD OF AC MOTOR 失效
公开(公告)号：JPS6035973A
公开(公告)日：1985-02-23
申请号：JP14349983
申请日：1983-08-05
申请人： NIPPON STEEL CORP
发明人： SAKIMOTO TSUTOMU , SUMIYA EIJI
IPC分类号： H02P1/54 , H02P1/58
摘要： PURPOSE:To contrive energy-save by decreasing the increasing rate of output voltage and frequency of a variable voltage/variable frequency converter when the starting current exceeds the set value in case that the motor is slowly started by the output of the converter. CONSTITUTION:A contactor 4a is closed and a contactor 4b is opened at the starting time, and power is supplied by a variable voltage/variable frequency converter 5 to a motor 3. At this time the output voltage Vs and the output frequency fs of the converter 5 are gradually raised from zero. When the starting currents Is exceeds the value I1 set by an overcurrent detector 7 at the starting time, the rising gradients of the voltag Vs and frequency fs are altered to control so that the current Is becomes the prescribed value I1 or lower. When the output voltage Vs and the frequency fs of the converter 5 become equal to the voltage and frequency of the power source 1, the contactor 4a is opened and the contact 4b is closed.

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