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51. 发明专利

JPS61186426A CONTINUOUS ANNEALING FURNACE OF METALLIC STRIP 失效
公开(公告)号：JPS61186426A
公开(公告)日：1986-08-20
申请号：JP2654785
申请日：1985-02-15
申请人： MITSUBISHI HEAVY IND LTD , KAWASAKI STEEL CO
发明人： HARADA MASAHIRO , YANAGI KENICHI , FUKUSHIMA TAKEO , FURUKAWA KUSUO
IPC分类号： C21D9/56
摘要： PURPOSE:To compensate the response delay of the temp. of a radiant tube by injecting the gas of a prescribed temp. from nozzle for gas jet provided in the final part of a heating zone and over the entire part of a soaking zone for a short period at every change of the conditions of a metallic strip. CONSTITUTION:The high-temp. gas of about 1,200-1,300 deg.C is supplied from a duct 13 to a pebble heater 12 to maintain the inside of the pebble heater 12 at a high temp. during the time when the metallic strip 1 is treated in a continuous annealing furnace. The supply of the high-temp. gas to the heater 12 is stopped and the gaseous NH of a low temp. is supplied from a duct 14 into the heater 12 when the strip 1 having a thick thickness enters the furnace. The gaseous NH heated to a high temp. in the short period is supplied through ducts 5, 6 into a plenum chamber 4 and is ejected from nozzles 7, 10 to the strip 1, by which the temp. of the strip is increased without time delay. The gaseous NH of the low temp. is injected through a bypass duct 15 to decrease the temp. when the thickness of the plate decreased. The strip 1 is thus annealed to the prescribed temp. without time delay.

52. 发明专利

JPS6077934A METHOD FOR COOLING STEEL SHEET IN CONTINUOUS ANNEALING 失效
公开(公告)号：JPS6077934A
公开(公告)日：1985-05-02
申请号：JP18441583
申请日：1983-10-04
申请人： KAWASAKI STEEL CO , MITSUBISHI HEAVY IND LTD
发明人： SAKATA TAKASHI , HASHIMOTO OSAMU , SUGANUMA NAMIO , SAMEJIMA ICHIROU , FUKUSHIMA TAKEO , HIYOUDOU KANAAKI
IPC分类号： C21D9/573
摘要： PURPOSE:To manufacture a steel sheet with high suitability to chemical conversion treatment at a low cost by successively carrying out cooling with cooling rolls and direct cooling with a cooling liq. under specified conditions when a steel sheet cooled to a prescribed temp. is further cooled. CONSTITUTION:When a cold rolled steel sheet cooled to 300-500 deg.C is further cooled to a lower temp. in continuous annealing, the sheet is cooled from 300- 500 deg.C to 100-200 deg.C by winding around plural cooling rolls. A refrigerant is being circulated through the rolls along the insides. Direct cooling is then carried out with a cooling liq. to cool the sheet to a lower temp.

53. 发明专利

JPS6021337A COOLING METHOD OF STEEL STRIP IN CONTINUOUS ANNEALING 失效
公开(公告)号：JPS6021337A
公开(公告)日：1985-02-02
申请号：JP12852783
申请日：1983-07-14
申请人： KAWASAKI STEEL CO , MITSUBISHI HEAVY IND LTD
发明人： SAKATA TAKASHI , HASHIMOTO OSAMU , SUGANUMA NAMIO , FUKUSHIMA TAKEO , HIYOUDOU KANAAKI , MIHARA KAZUMASA
IPC分类号： C21D9/573 , C21D11/00
摘要： PURPOSE:To prevent deterioration in the quality of a cold-rolled steel strip and the change in the shape thereof in the stage of cooling the cold-rolled steel strip in the cooling zone of a continuous annealing furnace by cooling the strip with cooling rolls under the exact control down to an overaging treatment temp. under specific conditions. CONSTITUTION:A cold-rolled steel strip 4 which is heated up to the recrystallization temp. -A3 transformation temp. in a continuous annealing furnace is cooled down to a prescribed temp. in a slow cooling furnace and is thereafter cooled to down an overaging treating temp. of 300-500 deg.C with plural cooling rolls 5a-5e in a furnace 1 and in succession, the strip is introduced into an overaging treatment furnace 3. Hollow rolls are used for the cooling rolls 5a-5e in this case and warm water, hot water or pulverous alumina powder fluidized with gaseous HN or the like is used as a cooling medium. The steel strip 4 is cooled under the control to satisfy the equation (II) among the content of C in the strip 4, the temp. Ts at which the strip contacts with the first roll 5a and the temp. TL of the cooling medium flowing into the roll 5a, by which the strip is exactly cooled to the overaging treatment temp.

54. 发明专利

JPS606218A METHOD AND DEVICE FOR COOLING HOT ROLLED STEEL SHEET 失效
公开(公告)号：JPS606218A
公开(公告)日：1985-01-12
申请号：JP11311783
申请日：1983-06-23
申请人： MITSUBISHI HEAVY IND LTD , RYOMEI GIKEN KK
发明人： MAKIHARA KATSUMI , FUKUSHIMA TAKEO , NAKAGAWA SHINJI
IPC分类号： B21B45/02 , C21D9/52
摘要： PURPOSE:To eliminate uneven cooling and to prevent deformation of a traveling hot steel sheet by bending differently said steel sheet in alternate directions from upper and lower directions and cooling the sheet with cooling water. CONSTITUTION:Rolls 4 and screw-down rolls 5 are alternately and successively disposed above and below a hot rolled steel sheet 1 traveling on a hot run table to apply bending deformation to said sheet. The sheet 1 is cooled and tempered with the water ejected from upper water jet nozzles 2 and lower jet nozzles 3. The relatively large bending deformation is applied alternately to the steel sheet from above and below between the roll arrays on the inlet side. The bending deformation is successively weakened as the sheet advances. The sheet 1 is sunk deep by the rolls 5 into the cooling water well formed by a water conducting plate F attached to each nozzle 3.

55. 发明专利

JPS59120315A SENSIBLE HEAT RECOVERING DEVICE 失效
公开(公告)号：JPS59120315A
公开(公告)日：1984-07-11
申请号：JP22749082
申请日：1982-12-28
申请人： MITSUBISHI HEAVY IND LTD
发明人： MAKIHARA KATSUMI , SEZE SHINJI , FUKUSHIMA TAKEO
IPC分类号： B21B45/00 , C21D9/56
摘要： PURPOSE:To elevate the temperature of a coolant at a discharging pipe of coolant higher than that obtained in a conventional method and to obtain a highly useful heat source, by dividing a tank and supplying a coolant from the downstream side with respect to the advancing direction of a strip and extracting it from the upstream side. CONSTITUTION:A coolant 3 in a tank 2 is agitated by a running metallic strip 1 as a driving force, and a dividing board 10 acts to divide the coolant 3 in two by separating the agitation into a line A side and a line B side. Accordingly the temperature of coolant 3 is made to be T1>T2, where T1 is a temperature at the line A side and T2 at the line B side. Further, by supplying a coolant 9 from the line B side and extracting it from the line A side, a sensible heat higher in temperature compared with that obtained in a conventional method, that is, higher in usefulness can be recovered.

56. 发明专利

JPS59100225A PASSING DEVICE OF BELT-LIKE BODY 失效
公开(公告)号：JPS59100225A
公开(公告)日：1984-06-09
申请号：JP20840882
申请日：1982-11-30
申请人： MITSUBISHI HEAVY IND LTD
发明人： MAKIHARA KATSUMI , SEZE SHINJI , MIHARA KAZUMASA , OGASAWARA MITSUSATO , FUKUSHIMA TAKEO
IPC分类号： C21D9/52 , C21D9/573
摘要： PURPOSE:To enable an easy operation in the initial stage of passing a belt-like body without requiring any ancillary installation in a device for conducting the belt-like body through the immersion roll in the liquid in a tank and passing the same in the liquid by making the immersion roll movable upward in the liquid. CONSTITUTION:An immersion roll 3 is set at the level A in a tank 2 in the stage of an ordinary operation. A metallic strip 1 is brought into the tank 2 via a deflection roll 5 and is changed in direction by a roll 3 and thereafter it is fed by a deflection roll 5'. The strip 1 is cooled by contacting directly with the refrigerant 4 in the tank 2 during said time. On the other hand, shafts 6, 6' are rotated by a driving device 10, and the roll 3 supported with plummer blocks 12, 12' and bearings 11, 11' is pulled up to the level B. The strip 1 is passed through linearly as shown by a broken line and thereafter the roll 3 is returned to the level A.

57. 发明专利

JPS57164929A COOLING METHOD FOR METALLIC STRIP AND COOLING ROLL USED FOR THIS METHOD 失效
公开(公告)号：JPS57164929A
公开(公告)日：1982-10-09
申请号：JP4729981
申请日：1981-04-01
申请人： MITSUBISHI HEAVY IND LTD , KAWASAKI STEEL CO
发明人： YANAGI KENICHI , FUKUSHIMA TAKEO , UMEMOTO SUMIO , ISHIHARA HAJIME
IPC分类号： B21B27/08 , C21D1/00 , C21D9/573
摘要： PURPOSE:To cool a high temp. metallic strip quickly without producing shape defects by condensing and evaporating the heat medium sealed in a hollow cooling roll repeatedly in said roll thereby cooling a metallic strip. CONSTITUTION:A hollow cooling roll 2 for cooling a metallic strip 1 revolves while supported by means of bearings 3, and a gaseous heat medium 4 supplied from a supply pipe 5 through a rotary joint 6 is filled in the roll 2. A heat transfer pipe 7 for cooling is inserted into the atmosphere of the medium 4, and the cooling water flows through an inlet 8 then through a water sealing box 9, the inside of the pipe 7 and a water sealing box 11 and is discharged through an outlet 10. The sealed medium 4 cools and condenses on the outside surface of the pipe 7 and drips as liquid drops 4'. These drops stick on the inside wall of the roll 2 and deprive the same of a large quantity of heat of evaporation at the time when it evaporates again, thereby cooling the strip 1 through the wall surface of the roll 2.

58. 发明专利

JPS5747502A Rolling and continuous annealing method 失效
标题翻译：滚动和连续退火方法
公开(公告)号：JPS5747502A
公开(公告)日：1982-03-18
申请号：JP12226180
申请日：1980-09-05
申请人： Mitsubishi Heavy Ind Ltd
发明人： HASHIMOTO KAZUYOSHI , FUJISAKA TEIJIROU , FUKUSHIMA TAKEO , FURUKAWA HEIZABUROU
IPC分类号： B21B1/28 , B21B1/22 , B21B15/00 , B21B45/00 , C21D8/02
CPC分类号： B21B15/00 , B21B1/28 , B21B45/004
摘要： PURPOSE:To exclude the use of hardly washable rolling mill oil and its mechanical removal from the rolling and annealing process, by applying a washing and annealing process to a strip rolled to an intermediate thickness, after rolling it to a final thickness at a rolling section included in a continuous annealing process. CONSTITUTION:A strip coil 1, obtained by rolling to an intermediate thickness by a rolling apparatus comprising a tandem cold mill, is uncoiled and is rolled to a final thickness by a rolling mill 4 comprising small diameter work rolls. The rear end of a preceding strip is welded to the front end of a trailing strip by a welder 3 after passing a tension controlling bridle roll 5. Thus united strip is passed through an electrolytic tank 6, and a rinsing and drying tank 8 in order to chemically wash out adherent substances of the strip surface; then, the strip is annealed in a continuous annealing chamber 10, is cut into a proper length by an outlet shear 12, and is coiled by a coiler 14 into a coil form. By the present method, the use of hardly washable rolling milll oil becomes unnecessary so that such a mechanical remover for it as a brush scrubber is not required.
摘要翻译：目的：为了排除使用难洗的轧机油及其轧制退火工艺的机械除去，通过对轧制成中间厚度的钢带进行洗涤退火处理，轧制后的轧制部的最终厚度包括在连续退火工艺中。构成：通过包括串列式冷轧机的轧制设备将其轧制成中间厚度而获得的带状卷材1被卷起并通过包括小直径工作辊的轧机4轧制成最终厚度。在通过张力控制带轮5之后，前一条带的后端通过焊接机3焊接到拖带的前端。因此，合并后的条带依次通过电解槽6和漂洗和干燥箱8 化学洗涤带状表面的粘附物质; 然后将条带在连续退火室10中进行退火，通过出口剪切12切割成合适的长度，并由卷取机14卷成线圈形式。通过本方法，不需要使用几乎不可洗的轧制机油，因此不需要这种作为刷洗涤器的机械去除剂。

59. 发明专利

JPS56139211A RECOVERING METHOD FOR SENSIBLE HEAT OF HOT ROLLED STEEL STRIP 失效
公开(公告)号：JPS56139211A
公开(公告)日：1981-10-30
申请号：JP4046480
申请日：1980-03-31
申请人： MITSUBISHI HEAVY IND LTD
发明人： FUKUSHIMA TAKEO , YANAGI KENICHI , MIHARA KAZUMASA
IPC分类号： B21B45/00 , B21B43/00 , B21B45/02 , C21D1/00
摘要： PURPOSE:To utilize a heat exchanger for recovering the sensible heat of the steel strip, by employing a molten salt nonboiling at high temperatures for cooling the hot rolled steel strip. CONSTITUTION:A hot rolled strip A running out of the final rolling mill 1 at high temperatures is passed through a tank 3 holding a molten salt B and is cooled by the molten salt B; after that the strip A is passed through a wringer roll 7 for removing the adhering molten salt and is coiled by the coiler 8. The molten salt B does not boil even if it is heated by the hot rolled strip A, is sent through a pipeline 6 to a heat exchanger for recovering the heat received from the strip A, and is returned to the molten salt tank 3; by thus recycling the molten salt B for cooling the hot rolled strip A, the sensible heat of the hot rolled strip A is effectively recovered.

60. 发明专利

JPS51147402A A SINTERING PROCESS AND SINTERING MACHINE HAVING SPLIT TYPE FIRING FUR NACE 失效
公开(公告)号：JPS51147402A
公开(公告)日：1976-12-17
申请号：JP7122275
申请日：1975-06-12
申请人： MITSUBISHI HEAVY IND LTD
发明人： SHIMOZATO YOSHIO , ITANO SHIGEO , FUKUSHIMA TAKEO , HIYOUDOU KANAAKI
IPC分类号： C22B1/20 , C22B1/16 , F27B21/06 , F27B21/08
摘要： PURPOSE:Three steps of firing of raw material surface layers, transition from firing to regular sintering and regular singering can be correctly performed respectively, and sintering can be correctly performed respectively, and sintered ores of the quality homogenious in the thickness direction of the raw material layers are produced at high yield.

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