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1. 发明专利

JPS63295010A CONTROL DEVICE FOR INTER-PITCH 失效
公开(公告)号：JPS63295010A
公开(公告)日：1988-12-01
申请号：JP13264287
申请日：1987-05-28
申请人： NISSHIN STEEL CO LTD , MITSUBISHI ELECTRIC CORP
发明人： YAMAZAKI MASAKUNI , HASHIMOTO KATSUHIKO , ISHIKAWA SHUICHI , MANABE SHUNJI , TAKAJI KATSUHIKO , KURAMOTO SATORU
IPC分类号： B21B37/00
摘要： PURPOSE:To improve the efficiency of rolling work by calculating required times that a tail end of preceding material and a top end of succeeding material travel from a detecting position to a rolling mill respectively, and base on its difference, by controlling the travel of succeeding material. CONSTITUTION:Speed detectors 18, 19 of the rolling mill 1 and table roller 13a are provided and connected to 1st and 2nd arithmetic units 18, 19. The arithmetic units 18, 19 estimate and calculate the required times TA, TB that the tail end 4B of the preceding material and the top end 5A of the succeeding material travel from the position of the position detector 7 to the rolling machine 1 respectively. Then, an inter-pitch control circuit 22 calculates the inter-pitch TB-TA and compares it with a set pitch TGAP to stop, pull back and feed again the succeeding material 5 to jogging transfer. In this way, because the waiting time in the jogging of the succeeding material is reduced, the efficiency of the rolling work is improved.

2. 发明专利

JPS63277720A METHOD FOR CONTROLLING PULLING-OUT PITCH 失效
公开(公告)号：JPS63277720A
公开(公告)日：1988-11-15
申请号：JP11238787
申请日：1987-05-11
申请人： NISSHIN STEEL CO LTD , MITSUBISHI ELECTRIC CORP
发明人： YAMAZAKI MASAKUNI , HASHIMOTO KATSUHIKO , ISHIKAWA SHUICHI , TAKAJI KATSUHIKO , KURAMOTO SATORU
IPC分类号： B21B37/00 , C21D1/00 , C21D9/00 , C21D11/00
摘要： PURPOSE:To efficiently execute hot rolling of a steel slab by executing correction of pulling-out pitch by considering the root mean square value (RMS) of current required for rolling of the slab in a furnace in the hot rolling equipment at the next process at the time of pulling out the heated steel slab from the heating furnace. CONSTITUTION:The steel slab pulled out from the heating furnace 1 is wound into a coiler 5 as a steel sheet after rolled by rough rolling mills 2, 3 and multi- stage finishing mills 4. In this case, the ejecting pitch of the steel slab pulled out from the heating furnace 1 is found from the actual current of the pulled out slab by the current root mean square value (RMS) for required rolling. Next, the RMS of the steel slab in the heating furnace to be pulled out and rolled after this is predictively calculated and the actual RMS is added to the calculated RMS and the pulling out pitch of the steel slab from the heating furnace is decided as the future RMS. The rolling work can be executed under the max. load of the motor for rolling and the rolling work having extremely high efficiency can be executed.

3. 发明专利

JPH04124905A AUTOMATIC SOUND VOLUME ADJUSTING METHOD 失效
公开(公告)号：JPH04124905A
公开(公告)日：1992-04-24
申请号：JP24383490
申请日：1990-09-17
申请人： NISSHIN STEEL CO LTD
发明人： ISOMURA YASUYUKI , TAKAJI KATSUHIKO
IPC分类号： H03G3/32
摘要： PURPOSE:To automatically control a sounding level, and to obtain the sounding level of an optimum level to meet the noise level of the surroundings by detecting the noise level of the background noise of the surrondings, and controlling the sounding level of a sounding body in accordance with this noise level. CONSTITUTION:A noise meter 1 constituted so as to detect the noise level of the background noise of the surrondings where the sounding body 2 such as a speaker, etc., is positioned. The output signal la of this noise meter 1 is inputted to a frequency analyzer 3, and the frequency of the output signal 3a of this frequency analyzer 3 is discriminated by a discrimination circuit 4. A discrimination signal 4a from this discrimination circuit 4 is inputted to a sounding volume switching circuit 5, and the switching signal 5a of this sounding volume switching circuit 5 is inputted to a sounding volume generator 6 connected to the sounding body 2. Accordingly, by frequency-analyzing the output signal 1a of the noise level meter 1 by the frequency analyzer 3, and discriminating the output signal 3a of its analyzed result by the discrimination circuit 4, and changing the sounding volume of the sounding volume generating device 6 through the sounding volume switching circuit 5 on the basis of the discrimination signal 4a, a sound based on the sounding volume can be sounded from the sounding body 2.

4. 发明专利

JPS6018213A SHAPE CONTROLLING METHOD IN ROLLING MILL 失效
公开(公告)号：JPS6018213A
公开(公告)日：1985-01-30
申请号：JP12818483
申请日：1983-07-13
申请人： NISSHIN STEEL CO LTD , HITACHI LTD
发明人： ASADA KOUICHI , ISHIKAWA SHIYUUICHI , SHIOKAWA TASUKE , YAMAZAKI MASAKUNI , TAKAJI KATSUHIKO , KONOSE RIYOUHEI , SUKEGAWA KAZUYA , AWATSUHARA HIROSHI
IPC分类号： B21B37/00 , B21B37/38
摘要： PURPOSE:To control properly the sheet shape and sheet crown of a steel strip by inputting the detecting values of a crown meter and a shape meter located respectively at the exit of a rolling mill to a feedback control device and correcting a bending force of each stand, in rolling the strip by a tandem finishing mill. CONSTITUTION:In rolling a steel strip 4 by a six-stage tandem finishing mill, the sheet crown and sheet shape of the strip 4 are detected by a crown meter 8 and a shape meter 9 arranged respectively at the exit of the mill, to input the detected results to a feedback control device 7. The device 7 outputs an additional signal, basing on these sheet crown and sheet shape, to the bending-correcting output of a predictive control device 6 which houses a model equation for predicting the thermal crown of a roll with the passage of time, to perform a feedback control. The rolling material 4 is rolled by correcting the deviation of a bending force by the work roll of each stage, to obtain a sheet material having prescribed sheet shape and sheet crown at the exit.

5. 发明专利

JPH03249112A METHOD AND DEVICE FOR DETECTING WALL CONDITION OF BLAST FURNACE 失效
公开(公告)号：JPH03249112A
公开(公告)日：1991-11-07
申请号：JP4441990
申请日：1990-02-27
申请人： NISSHIN STEEL CO LTD
发明人： ISOMURA YASUYUKI , TAKAJI KATSUHIKO , NUNOMURA SEISHIRO , YAMAMOTO KIYONORI , OISHI TADASHI
IPC分类号： C21B7/24
摘要： PURPOSE:To detect the condition of the deposits on furnace walls over the entire part of the furnace with high accuracy by determining an inert index by a fuzzy rule in accordance with the temp. detection data from sensors on the furnace walls in the method for using the above-mentioned data. CONSTITUTION:The temp. detection data 6a of the respective plural temp. sensors 6 provided on the walls of, for example, a blast furnace 1 are collected at 1-minute period by a temp. collector 10. a rank percent 10a which is the rank data for 8 hours is determined for each stage of the entire part of the furnace walls. This input data 10a is subjected to fuzzy computation by the 1st fuzzy rule with a step direction inert computing device 11 and a step direction active computing device 12 to determine the inactivity and activity over the entire step directions. The inactivity and activity over the entire part of the furnace are then determined by the 2nd fuzzy rule with the above-mentioned inactivity and activity as input data with an inert computing device 13 for the entire part of the furnace and an active computing device 14 for the entire part of the furnace. Further, the inert index and active index are computed by the state index of the deposits on the furnace wall with an inert tendency computing device 15 and an active tendency computing device 16, in order to determine the tendency over a long period of time.

6. 发明专利

JPS6153125B2 失效
公开(公告)号：JPS6153125B2
公开(公告)日：1986-11-17
申请号：JP16358179
申请日：1979-12-18
申请人： NISSHIN STEEL CO LTD
发明人： YAMAZAKI MASAKUNI , HIRAYAMA YUKIO , ASADA KOICHI , ISHIKAWA SHUICHI , TAKAJI KATSUHIKO
IPC分类号： B21B37/18

7. 发明专利

JPS606214A METHOD AND DEVICE FOR PREVENTING SNAKING IN PLATE ROLLING 失效
公开(公告)号：JPS606214A
公开(公告)日：1985-01-12
申请号：JP11568883
申请日：1983-06-27
申请人： NISSHIN STEEL CO LTD , HITACHI LTD
发明人： ASADA KOUICHI , ISHIKAWA SHIYUUICHI , ODAGIRI SHIGERU , YAMAZAKI MASAKUNI , TAKAJI KATSUHIKO , AWATSUHARA HIROSHI , SUKEGAWA KAZUYA , KAWASE HIROSHI
IPC分类号： B21B37/00 , B21B37/68
摘要： PURPOSE:To detect exactly generation of snaking in an initial state and to prevent surely and easily the snaking by preventing the uneven elongation of a rolled material having a correlation with the shifting rate of a plate owing to snaking. CONSTITUTION:The asymmetrical component DELTAlambda(=lambdaW-lambdaD; lambdaW, lambda are the difference in elongation rate between operating and driving sides) relative to the center of the width of a plate of a difference in the elongation rate of a rolled a material 1 is detected with a shape detector 3 and is outputted to a discriminator 6. Control is required when DELTAlambdanot equal to 0 and the plate shifts to the driving side if DELTAlambda>0 and to the operating side if DELTAlambda

8. 发明专利

JPS5686615A AUTOMATIC THICKNESS CONTROLLING METHOD FOR ROLLING MILL 失效
公开(公告)号：JPS5686615A
公开(公告)日：1981-07-14
申请号：JP16358179
申请日：1979-12-18
申请人： NISSHIN STEEL CO LTD
发明人： YAMAZAKI MASAKUNI , HIRAYAMA YUKIO , ASADA KOUICHI , ISHIKAWA SHIYUUICHI , TAKAJI KATSUHIKO
IPC分类号： B21B37/18
摘要： PURPOSE:To enable the rolled product with high thickness accuracy to be always obtained, by inputting information in respect of the steel grade and specifications other than thickness signal of the thickness detector, to the X-ray monitoring controller, and by inputting the output of its operation to the automatic thickness controller. CONSTITUTION:The output of the thickness detector 5 for the thickness of steel material 2 after the hot rolling pass, and the change-over output of the X-ray monitoring change-over device 10, like as the change-over switch for example, for the steel grade, specifications, etc., are inputted to the X-ray monitoring controller 9. The output of the controller 9 is inputted to the automatic thickness controller 6; hereupon, the output of the controller 9 to be inputted to the controller 6 is obtained by processing so as to control the roll gap of work rolls of the rolling mill 1 to obtain the optimum biting thickness, taking the thickness at the point of time of detecting by the device 5 as the reference. By the present method, since the X-ray monitoring control, possible to obtain the constant thickness for every steel material 2, can be performed even if the steel grade is altered, the thickness control can be performed regardless of the steel grade or specifications.

9. 发明专利

JPH04105713A PREVENTIVE METHOD OF DEW CONDENSATION OF COIL IN COIL YARD 失效
公开(公告)号：JPH04105713A
公开(公告)日：1992-04-07
申请号：JP22743190
申请日：1990-08-28
申请人： NISSHIN STEEL CO LTD
发明人： TAKAJI KATSUHIKO , ISOMURA YASUYUKI
IPC分类号： B66C17/12 , B21C47/24 , B21C51/00
摘要： PURPOSE:To prevent dew condensation from generation in a coil in a coil yard by estimating dew condensation based on temperature and humidity measured by a thermometer and a hygrometer provided on a tongue of a crane and rearranging the coil. CONSTITUTION:The coil yard 6 is divided into plural blocks, hot-rolled coils are cut in one block and when this block is filled, the coils are stored successively in next block. The coils are carried away successively from a block of the most cooled coils and in this case the temperature and humidity of the coil are measured by the thermometer 4 and hygrometer 5 mounted on the tongue 3 of the crane 2. Dew condensation generating atmosphere is predicted from the dew point temperature at that time. In this way, a coil is rearranged with a high temperature coil to prevent dew condensation, the coil from rust and condensation from generation.

10. 发明专利

JPS63260613A METHOD FOR OPERATING FURNACE IN ALTERNATE ROLLING SYSTEM 失效
公开(公告)号：JPS63260613A
公开(公告)日：1988-10-27
申请号：JP9573987
申请日：1987-04-17
申请人： NISSHIN STEEL CO LTD
发明人： YAMAZAKI MASAKUNI , ISHIKAWA SHUICHI , HASHIMOTO KATSUHIKO , NAKABAYASHI ATSUO , MIYASHITA NORICHIKA , TAKAJI KATSUHIKO , KATSUYA HIROMACHI
IPC分类号： B21B1/00 , B21B37/00 , B21B45/00
摘要： PURPOSE:To stabilize operations by supplementing stop, addition, and adjusting cycles of slab charging to a present execution cycle after execution of the cycle for alternate rolling by combining a 1st and a 2nd heating furnaces. CONSTITUTION:Proceeding of cycles is checked as rolling proceeds; at the time of rejecting a DHCR stock 8, a matching zone control is performed and the rear end is cut. In accordance with situations, supplement of cycles and change of infurnace instruction are performed. As for all of those operations, an extractive sequence for a 1st heating furnace 1 and a 2nd heating furnace 2 is decided by commands from a vidicon 11. By this method, stable operation is possible.

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