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1. 发明专利

JPS59220201A ROLLING METHOD OF SLAB 失效
公开(公告)号：JPS59220201A
公开(公告)日：1984-12-11
申请号：JP9666983
申请日：1983-05-31
申请人： NIPPON KOKAN KK
发明人： KAMATA SHIYOUSEI , OKADO KATSU , FUJITA YONEAKI , ARIIZUMI TAKASHI , FUKUMOTO TADASHI
IPC分类号： B21B1/02 , B21B1/26
摘要： PURPOSE:To reduce concave crops which are produced at the front and rear ends of a slab by setting the roll central axis of each pair of horizontal rolls and vertical ones in the same plane which intersects perpendicularly with the rolling direction of the slab and adjusting the rolling reduction of the horizontal roll having the width not less than a specific ratio. CONSTITUTION:A pair of horizontal rolls 7 and a pair of vertical rolls 6 are installed so that each central axis of the rolls 6, 7 is positioned in the same plane which intersects perpendicularly with the rolling direction of a slab 1. Then, concave crops which are produced at the front and rear ends of the slab 1 are reduced by adjusting the rolling reduction of a pair of the horizontal rolls 7 or adjusting the ratio between the peripheral speeds of rolls 6 and 7. In this case, when the width of the horizontal roll 7 is regulated to >=10% of the width of slab 1, a loss caused by the crops is remarkably reduced.

2. 发明专利

JPS59150604A Rolling mill 失效
标题翻译：轧机
公开(公告)号：JPS59150604A
公开(公告)日：1984-08-28
申请号：JP2361483
申请日：1983-02-15
申请人： Nippon Kokan Kk
发明人： FUJITA FUMIO , KAMATA SHIYOUSEI , TOMITA SHIYOUGO , SASAKI TAKETO
IPC分类号： B21B13/02 , B21B13/14 , B21B29/00 , B21B31/20
CPC分类号： B21B13/145 , B21B2013/025 , B21B2013/026 , B21B2013/028 , B21B2031/206
摘要： PURPOSE:To perform a complicated shape control in a wide range by offsetting one of a pair of upper and lower work rolls and providing bending rolls and sectional rolls through said bending rolls to the offset work roll. CONSTITUTION:A work roll 1 of the lower side of a pair of upper and lower work rolls 1, 1 is offset, by an offset quantity delta, to the rolling direction of a rolling material S. Bending rolls 2, 2', smaller in diameter than the offset work roll 1, and plural sectional rolls 3, 3', divided in the body length direction capable of imposing a lateral force on the work roll 1, are arranged respectively at both sides of the inlet and outlet sides of rolling of the offset work roll 1. A rolling mill is constructed so that optional forces can be separately applied to respective sectional rolls 3, 3'.
摘要翻译：目的：通过偏移一对上下工作辊之一并将弯曲辊和分段辊通过所述弯曲辊到偏移工作辊来进行宽范围的复杂形状控制。构成：一对上下工作辊1,1的下侧的工作辊1相对于轧制材料S的轧制方向偏移偏移量δ。弯曲辊2,2'，较小的直径大于偏移加工辊1的长度方向分割的多个分割辊3,3'，分别在工作辊1上施加横向力的主体长度方向分别设置在轧制的入口侧和出口侧的两侧偏移工作辊1.轧机被构造成使得可选择的力可以分别施加到相应的分段辊3,3'。

3. 发明专利

JPS57209707A SETTING METHOD FOR ROLLING PASS SCHEDULE 失效
公开(公告)号：JPS57209707A
公开(公告)日：1982-12-23
申请号：JP9518981
申请日：1981-06-22
申请人： NIPPON KOKAN KK
发明人： ISHIDA MASAYUKI , KAMATA SHIYOUSEI , GOTOU KEIZOU , KUWAMOTO HIROSHI , IWATOU SHIYUUICHI
IPC分类号： B21B37/00 , B21B37/26
摘要： PURPOSE:To minimize the change rates of pass schedules in the stage of size changing by determining the actual records of the draft distributions of respective stands from the actual records of rolling of a preceding size and calculating and setting the draft distributions of a succeeding thickness in such a way that the draft patterns of the entire stand are continued. CONSTITUTION:The actual records of the draft distributions of respective stands are calculated from the actual records of rolling of a preceding size, that is, the speeds, advance rates, etc. of the respective stands. Further, in order to obtain the pass schedule of the next rolling size, the same draft patterns as the actual record values of the preveious rolling size are incorporated with respect to the entire stand or the entire stand excluding one or two stands. In the stage of size changing, said draft patterns are always maintained, whereby the change rates of the pass schedules are minimized. Therefore, the pass schedule setting that permits quick and effective size changing is made possible.

4. 发明专利

JPS55103201A ROLLING METHOD FOR STEEL SHEET 失效
公开(公告)号：JPS55103201A
公开(公告)日：1980-08-07
申请号：JP921479
申请日：1979-01-31
申请人： NIPPON KOKAN KK
发明人： HIRASAWA TAKESHI , SHIYOUDA SADAKAZU , KAMATA SHIYOUSEI , HIRABE KENJI
IPC分类号： B21B1/38 , B21B27/02 , B21B37/00 , B21B37/38
摘要： PURPOSE:To reduce the roll bending factor, and to manufacture the steel sheet of breadth of wide range and of small sheet crown, without interchanging the rolls, by forming the taper zone with length of specified % of the drum length and with a specified taper angle, at both ends of backup rolls of the four-stage rolling mill. CONSTITUTION:At both ends of backup rolls 1, 5, the taper zones are formed with the chamfer length (a) being 5-32% of drum length L, and the angle theta being 0.01-1 deg.. This taper zone can be formed into one-stage or more, and also can be asymmetry between upper and lower backup rolls. These tapered rollers are built in as the backup rolls against the work rolls 2, 4, which then can carry out the rolling work for the sheet 3. With the increase of the rolling load, the contact breadth between rolls 1, 5, and 2, 4, becomes longer, hence, the roll bending factor K can be reduced against the sheet of breadth of wide range. Besides, by impressing the bending force on the rolls 1, 5, and/or 2, 4, above stated contact condition is changed correspondingly to the breadth of the rolled sheet, and the value of the factor K is further reduced.

5. 发明专利

JPS5534652A CONTROLLING METHOD FOR HEATING FURNACE 失效
公开(公告)号：JPS5534652A
公开(公告)日：1980-03-11
申请号：JP10686678
申请日：1978-08-31
申请人： NIPPON KOKAN KK
发明人： YAMAMOTO TSUNEHISA , KAMATA SHIYOUSEI , KURAISHI TATSUO , YABUUCHI TOSHIFUMI , KUSUMOTO KOUJI , SHIRAISHI KAORU
IPC分类号： C21D9/00 , C21D11/00
摘要： PURPOSE:To reduce fuel consumption per unit product as low as possible and to keep the preciseness in the extraction temp. of steel slab, by finding suitably the slab temp. in the furnace, and by heating the slab while correcting the fuel flow according to the difference between the slab temp. and the temp. shown by the predetermined temp. rise curve. CONSTITUTION:A continuous heating furnace 1 is composed of a preheating zone 2, a heating zone 3, and a soaking zone 4, and is equipped with a charged slab detector 5, extracted slab detector 6, and an operator 7. To the operator 7 is inputted the information for every slabs by slag cards, and the max. flow through the soaking zone, the quantity of heat necessary for every slabs to be heated to a prescribed temp., temp. rise curve, and average heat absorption ratio for optional slabs are computed. A slab is then fed and a slab-detecting signal is produced from the detector 5, and the operator 7 computes the heat quantity absorbed up to now in the preheating zone 2 at intervals of a prescribed time from the measurement of actual flow. Hereby, heat quantity required by the slab is found, and if necessary, the slab temp. T' is directly found from the furnace-atmosphere temp. T. Thereafter a flow control unit 9 and the combustion of the preheating zone 2 are controlled by a calculated value corrected by use of a correction factor found from the difference between the temp. T' and the estimated temp. The heating zone 3 and the soaking zone 4 are controlled in the same manner.

6. 发明专利

JPS5680628A COMBUSTION CONTROLLING SYSTEM FOR HEATING FURNACE 失效
公开(公告)号：JPS5680628A
公开(公告)日：1981-07-02
申请号：JP15773979
申请日：1979-12-05
申请人： NIPPON KOKAN KK
发明人： KAMATA SHIYOUSEI , FUSHIMI NAOYA , MIZUKAWA YOSHIHIRO , SATOU HIROHIKO , OAMA MASAMI , KAJITA MICHINORI
IPC分类号： F23N5/00 , F23N5/18 , F23N5/24
摘要： PURPOSE:To lower the energy consumption rate in a heating furnace, by reducing the supply of superfluous combusting air by automatically controlling the air-fuel ratio in every region of the heating furnace on the basis of the actual density of oxygen in the furnace that is obtained through measurement. CONSTITUTION:In the system, there are provided a means 8 for detecting the density of O2 in a heating furnace, O2 controlling means 9, 10 operated selectively when a gate of the heating furnace is opened and closed in response to the output signal of the means 8, adders 11, 12 for adding a predetermined voltage to the outputs of the O2 controlling means 9, 10, and an air-fuel ratio controlling means 3 for determining the ratio of air-flow rate to fuel-flow rate on the basis of the output signal of a fuel-flow selecting means 1, an actual measurement signal of a fuel-flow meter 6, an actual measurement signal of an air-flow meter 7 and the output signals of the adders 11, 12. Here, the air-fuel ratio controlling means 3 is designed to give set values respectively to a fuel-flow controller 4 and an air-flow controller 5. With such an arrangement, it is enabled to eliminate fluctuation in the density of O2 at the time when the gate of the furnace is opened and to minimize the energy consumption rate in the furnace.

7. 发明专利

JPS55158818A CONTROLLING METHOD FOR SHEET THICKNESS IN ROLLING MILL 失效
公开(公告)号：JPS55158818A
公开(公告)日：1980-12-10
申请号：JP6556679
申请日：1979-05-29
申请人： NIPPON KOKAN KK
发明人： KAMATA SHIYOUSEI , FUSHIMI NAOYA , YAMANE TAKAO , OKAMI YUUJI , SAKAMOTO AKIRA
IPC分类号： B21B37/18
摘要： PURPOSE:To improve the accuracy of thickness of the product sheet rolled by the tandem cold rolling mill, by controlling the rolling reduction of the first-stage stand according to the proportional plus integral control system depending on the measured thickness value on the discharging side of the first-stage stand, and besides, by controlling the roll speed according to only the proportional control system. CONSTITUTION:The X-ray gaugemeter 6, installed on the discharging side of the stand 1, sends the thickness deviation signal to the control units 7, 9, which then control the screw down device 8 according to the proportional plus integral control system, and also, control the roll speed control unit 11 according to the proportional control system only; hereby, the interference between two functions is prevented. Next, for the purpose of controlling the roll speed of the stand 5, above stated thickness deviation signal is sent to the time processing chircuit 12, and the time required by the rolled material to travel from the stand 1 to the stand 5 is estimated from the outputs of the tachometer generators 17, 18, and then, the time constant is corrected correspondingly to the time lag. By this correction signal, the control unit 16 is controlled to obtain the final aim thickness.

8. 发明专利

JPS5428713A METHOD AND DEVICE FOR CONTROLLING TEMPERATURE OF STRIP MATERIAL 失效
公开(公告)号：JPS5428713A
公开(公告)日：1979-03-03
申请号：JP9459777
申请日：1977-08-09
申请人： NIPPON KOKAN KK
发明人： YAMAMOTO TSUNEHISA , KAMATA SHIYOUSEI , KURAISHI TATSUO , FUSHIMI NAOYA , FUKUOKA YOSHIKAZU , JITSUKAWA MASAHARU
IPC分类号： C21D9/56 , C21D11/00 , F27D19/00 , G05D23/00
摘要： PURPOSE:To provide the subject method and device wherein, in varying the line speed in a continuous heat treatment furnace consisting of a plurality of control regions, the furnace is controlled on the basis of a fuel required quantity calculated in each control region, thereby maintaining the temperature of each strip at the furnace outlet at a predetermined value.

9. 发明专利

JPS52152851A AUTOMATIC FORM CONTROLLING AT STEEL PLATE ROLLING 失效
公开(公告)号：JPS52152851A
公开(公告)日：1977-12-19
申请号：JP6968376
申请日：1976-06-16
申请人： NIPPON KOKAN KK
发明人： KAMATA SHIYOUSEI , KURAISHI TATSUO , FUSHIMI NAOYA , TANAKA AKIHIRO , TANIMOTO SUNAO
IPC分类号： B21B37/28 , B21B37/00

10. 发明专利

JPS5284153A METHOD OF CONTROLLING SPEED OF ROLLING MACHINE 失效
公开(公告)号：JPS5284153A
公开(公告)日：1977-07-13
申请号：JP81176
申请日：1976-01-07
申请人： NIPPON KOKAN KK , HITACHI LTD
发明人： KAMATA SHIYOUSEI , KURAISHI TATSUO , KANEKO KOUTAROU , UEKANE SADAHIRO , SAKURAI TAKAKAZU
IPC分类号： B21B37/48 , B21B37/00

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