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1. 发明专利

JPH0232207A ROUGHNESS MEASURING METHOD FOR METAL SURFACE 失效
公开(公告)号：JPH0232207A
公开(公告)日：1990-02-02
申请号：JP18425788
申请日：1988-07-22
申请人： NIPPON STEEL CORP
发明人： TSUTSUI KIYOMI , NAKAZONO ATSUSHI , KOMORI TERUHISA
IPC分类号： G01B11/30 , G01N21/47 , G01N21/55
摘要： PURPOSE:To measure the surface roughness of an object of measurement with high accuracy by setting emitted light beams in optical paths of regularly reflected light beams when the object is irradiated with light beams and diffuse reflected light beams in plural directions. CONSTITUTION:The light beams from a light source 1 is projected on the surface of a steel plate P at an angle theta and the quantity of the regularly reflected light beams are detected by a radiometer 3 provided in the conjugate direction with the light source 1. Further, the quantities of the diffuse reflected light beams in the different directions are detected by radiometers 4, 5, and 6 arranged on a spherical surface having its center at the irradiation point O of the steel plate P. Consequently, the regular reflection factor of the steel plate P as the object of measurement and the diffuse reflection factors in the directions are found by using the radiant energy values measured by the radiometers 3-6 and radiant energy values corresponding to environmental temperature measured values at positions corresponding to the installation positions of the radiometers 3-6. The surface roughness of the steel plate P is calculated from a predetermined expression based upon those reflection factors. Thus, the surface roughness is accurately measured without being affected by the material and surface properties of the steel plate and variation in ambient temperature.

2. 发明专利

JPS636428A MEASURING METHOD FOR SURFACE TEMPERATURE OF BODY 失效
公开(公告)号：JPS636428A
公开(公告)日：1988-01-12
申请号：JP15103986
申请日：1986-06-27
申请人： NIPPON STEEL CORP
发明人： NAKAZONO ATSUSHI , IOHARA NOBORU , TSUTSUI KIYOMI , FUJIWARA YASUHIKO , KOMORI TERUHISA
IPC分类号： G01J5/00
摘要： PURPOSE:To measure temperature with high accuracy by considering both regularly reflected radiation and diffuse reflected radiation and finding the reflected radiation energy in plural diffusion directions as to the diffuse reflection. CONSTITUTION:Light from a light generator 1 is guided to a light source 2 and projected upon the surface of a steel plate P at an angle theta. The quantity A of its regular reflection is detected by a light quantity detector 3. Further, the quantities S1, S2, and S3 of diffuse reflection in plural directions are guided to a computing element 7 through plural light quantity detectors 4, 5, and 6 arranged on a spherical surface having its center at the irradiation point of the steel plate P, thereby finding a regular reflection factor (a) and diffuse reflection factors S1, S2, and S3. A radiometer 8, on the other hand, measures radiation energy E in the direction of the steel plate P and a temperature measuring instrument 9 in the conjugation direction of the radiometer 8 and temperature measuring instruments 10, 11, and 12 in plural directions measure respective environmental temperatures Tr, T1, T2, and T3, from which the surface temperature of the steel plate P is found.

3. 发明专利

JPS5488568A INNFURNACE CONVEYANCE CONTROLLER 失效
公开(公告)号：JPS5488568A
公开(公告)日：1979-07-13
申请号：JP15538877
申请日：1977-12-23
申请人： NIPPON STEEL CORP
发明人： SATOU TOSHIAKI , TSUTSUI KIYOMI
IPC分类号： B65G47/28 , B65G47/22
摘要： PURPOSE:To convey a material to be conveyed at predetermined conveying position in a furnace by accurately detecting the lug end of the material by means of microwave in the furnace anc controlling a conveyance correcting unit on the basis of the detected value. CONSTITUTION:When a material T to be conveyed is conveyed in zigzag manner to cause the lug end T-1 thereof to be displaced from predetermined conveying position, microwave transmitted from a microwave transmitter 4 varies in amount to be interrupted at the lug end T-1 to thereby change the microwave amount received by a microwave receiver 6. This microwave is compared with a target set signal B by an arithmetic control circuit 12, which thereby produces a conveyance control signal to a conveyance correcting unit controller 13 so as to make the difference between the signal zero. A conveyance correcting unit 14 is operated on the basis of the conveyance control signal from the circuit 12 to correct the conveying position at the lug end T-1 of the material. Thus, the lug end T-1 is conveyed at predetermined conveying position.

4. 发明专利

JPH08246122A CONTROL METHOD OF INDUCTION HEATING ALLOYING FURNACE 失效
公开(公告)号：JPH08246122A
公开(公告)日：1996-09-24
申请号：JP4436595
申请日：1995-03-03
申请人： NIPPON STEEL CORP
发明人： TSUTSUI KIYOMI , MASUDA MASAHIRO
IPC分类号： H05B6/10 , C23C2/00 , C23C2/28 , F27D19/00
摘要： PURPOSE: To avoid insufficient alloying and to improve yield by carrying out a desired alloying according to a steel strip size in an induction heat alloying of a hot dip galvanized steel strip. CONSTITUTION: When a total charged electric energy necessary for alloying treatment corresponding to steel strip size is distributed to plural induction heating apparatuses, an electric power loading distribution pattern according to an alloying classification is selected and further an upper limit value of the electric power is calculated for a loss preventative measures due to a magnetic saturation and thereby an electric power set value for each induction heat apparatus is determined.

5. 发明专利

JPH0894463A TENSION MEASURING APPARATUS FOR BAND METAL 失效
公开(公告)号：JPH0894463A
公开(公告)日：1996-04-12
申请号：JP23290694
申请日：1994-09-28
申请人： NIPPON STEEL CORP
发明人： INUI NAGAFUSA , TSUTSUI KIYOMI
IPC分类号： G01L5/10 , B21B38/06 , B21C47/00
摘要： PURPOSE: To measure a tension being applied to a band metal accurately by disposing a slip unit on the lower bottom face at the bearing part of a deflector roll for measuring tension thereby eliminating the effect of the self-weight of deflector roll and band metal. CONSTITUTION: A band metal S winds around a deflector roll 2 to deflect by 90 deg. from a horizontal direction to a vertical direction. The deflector roll 2 has a bearing part 3 mounted on a slip unit 4 disposed on the lower bottom face so that the deflector roll 2 can be shifted horizontally with a weak force. The slip unit 4 bears the self-weight of the deflector roll 2, vertical tension of the band metal S being applied to the deflector roll 2, and the weight of the band metal S which causes an error in the measurement of tension. Horizontal tension of the band metal S being applied to the deflector roll 2 is measured directly by means of a load cell 6 mounted on the vertical side face at the bearing part 3. A slider with a linear bearing is preferably employed as the slip unit 4 because of its low coefficient of friction.

6. 发明专利

JPH07218300A METHOD AND DEVICE FOR DIAGNOSING HYDRAULIC CONTROL SYSTEM OF ROLLING MACHINE 失效
公开(公告)号：JPH07218300A
公开(公告)日：1995-08-18
申请号：JP34932493
申请日：1993-12-28
申请人： NIPPON STEEL CORP , NITTETSU TECHNOS KK
发明人： TSUTSUI KIYOMI , MOTOMATSU HIRONORI , NAKAZONO KATSUMI
IPC分类号： G01D21/00 , B21B28/00 , B21B33/00 , B21C51/00 , G01M99/00 , G01M19/00
摘要： PURPOSE:To provide a method and device for diagnosing the hydraulic control system of a rolling machine which can diagnose hydraulic and electrical systems regarding a hydraulic screw down device even during operation. CONSTITUTION:In a rolling machine 1, a screw-down cylinder in hydraulic screw down devices 2 and 3 are driven by an hydraulic device 9 and an electrical control system for adjusting the draft, the displacement of a screw-down cylinder caused by the oil column compression phenomenon when a material 6 to be rolled during operation is blocked is detected by a displacement meter 10, the response waveform, response speed, and amount of oil column compression, etc., are obtained by a signal processor 12 based on the displacement data, and then the abnormality in the control system is diagnosed based on these.

7. 发明专利

JPH07157856A METHOD FOR CONTROLLING ALLOYING IN INDUCTION HEATING ALLOYING FURNACE 失效
公开(公告)号：JPH07157856A
公开(公告)日：1995-06-20
申请号：JP30378993
申请日：1993-12-03
申请人： NIPPON STEEL CORP
发明人： TSUTSUI KIYOMI , MASUDA MASAHIRO
IPC分类号： C23C2/28 , C23C2/40
摘要： PURPOSE:To determine an appropriate electric energy to be supplied base on a temp. value in the alloying control of an induction heating alloying furnace in a galvanizing equipment by obtaining an accurate steel strip temp. on the outlet side of the furnace following continuously the continuous change of the data such as the kind of steel, coating weight and aluminum concn. CONSTITUTION:A three-dimensional space with the constant for the kind of steel expressed as x axis, the coating weight as y axis and the aluminum concn. as z axis is used as the space for determining an equation for calculating the sheet temp. on the outlet side of an alloying furnace, plural regions are set in the space, the equations are discretely assigned to each region, and the sheet temp. on the outlet side is calculated for a given value (x,y,z). Meanwhile, the contribution rate of the value given by a membership function to each region is calculated, and the weighed average of the calculated sheet temps. on the outlet side is obtained by the contribution rate and used as the objective value.

8. 发明专利

JPS55121325A CONTROL METHOD FOR EXTINGUISHING AND IGNITING BURNER 失效
公开(公告)号：JPS55121325A
公开(公告)日：1980-09-18
申请号：JP2753979
申请日：1979-03-09
申请人： TOKYO SHIBAURA ELECTRIC CO , YAMATAKE HONEYWELL CO LTD , NIPPON STEEL CORP
发明人： SAKAKI MASAMICHI , KUBOTA MIYOZOU , WATANABE KUNITOSHI , SHIBATA TOSHIHIKO , TSUTSUI KIYOMI , TANIMOTO ISAMU
IPC分类号： F23N5/20 , F23N1/02 , F23N5/24
摘要： PURPOSE:To stabilize combustion in a low flow rate region where flow rate measurement is incorret and combustion of a burner is unstable by a method wherein valve opening is controlled on the basis of a valve opening -time characteristic previously memorized in the low flow rate region of interest. CONSTITUTION:In a burner which control valves 3, 4 for requlating flow rates are each mounted to a combustion air A supply piping 1 and a combustion fuel G supply piping 2 and the valve opening is controlled by positioners 5, 6, a controller 9 is provided which a valve opening-time characteristic in the low flow rate regions of the control valves 3, 4 is previously memorized. The valve opening of the control valves 3, 4 is controlled by giving the positioners 5, 6 signals SA, SG from the controller 9 based on the extinguishing signals C of the burner. The said valve opening-time characteristic is set by computing the quantity of valve opening variation per unit time by an effective flow rate characteristic previously determined and the optimum air-fuel ratio m0 if the furnace is extinguished or ignited keeping mo even in the low flow rate region.

9. 发明专利

JPH0718341A DEVICE FOR MONITORING FRONT AND REAR SURFACE CHARACTERISTIC OF METALLIC STRIP AND CONTROLLER THEREFOR 失效
公开(公告)号：JPH0718341A
公开(公告)日：1995-01-20
申请号：JP16134393
申请日：1993-06-30
申请人： NIPPON STEEL CORP
发明人： TSUTSUI KIYOMI , NAKAMURA ISAO
IPC分类号： C21D9/56 , C21D11/00
摘要： PURPOSE:To monitor and control the front and rear surface characteristics (oxidation and reduction) of a steel strip in the respective zones in a continuous heat treatment furnace having a direct firing heating zone. CONSTITUTION:Thermometers 3 having a function to measure the emissivity of the steel strip are installed in mid-ways or outlet sides of the respective zones of the continuous heat treatment furnace 2 having the direct firing heating zone. Film thickness computing devices which compute the thicknesses of oxidized films of the front and rear surfaces of the steel strip in accordance with the information on the temps. and emissivity of the steel strip measured by these thermometers are disposed. The front and rear surface characteristics (oxidation and reduction) of the steep strip in the respective zones in the furnace are monitored and controlled in accordance with the computed information.

10. 发明专利

JPH06114417A ROLL ARTICLE CONFIRMING DEVICE 失效
公开(公告)号：JPH06114417A
公开(公告)日：1994-04-26
申请号：JP26390992
申请日：1992-10-01
申请人： NIPPON STEEL CORP
发明人： CHIKASAWA FUMIICHIRO , TSUTSUI KIYOMI , KONAKANO AKIRA
IPC分类号： B21B28/02 , B21C51/00 , G06K9/00
摘要： PURPOSE:To efficiently perform roll recognition without any manual work in the recombination of a ground roll by providing a recognition means for recognition display by the roll classifications, a means for comparing recognition display by the roll classifications and a means for issuing alarm according to this comparison. CONSTITUTION:An actual article confirming device 1 is provided on rails (d) for a roll transfer truck (c) moving from a roll shop to the position of a roll recombinating truck (b) on the side of a mill (a). An image from a camera which photographs the display of the end face of the roll is converted and processed by an image processor into a signal, compared by comparator with a signal from a computer which inputs a roll tracking information and when the signal has a different kind, an alarm signal is issued. An oscillator originating a signal by the roll is provided on a recessed part of the end face of the roll as an actual article confirming device 1 and accurate actual article recognition can be performed by confirming and processing the signal.

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