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81. 发明专利

JPH1157565A LIQUID COATING METHOD AND METHOD AND DEVICE FOR METALLIC STRIP COATING 失效
公开(公告)号：JPH1157565A
公开(公告)日：1999-03-02
申请号：JP15924398
申请日：1998-06-08
申请人： NIPPON KOKAN KK
发明人： ISHIOKA MUNEHIRO , MORIKAWA YASUTAKA
IPC分类号： B05D1/28 , B05C1/08 , B05D7/14
摘要： PROBLEM TO BE SOLVED: To prevent the degradation in the quality of a coated metallic strip and the appearance of products and to reduce the time and cost required for experiment. SOLUTION: The pressing acting on the metallic strip which acts in the respective parts where groove rolls 1 and the metallic strip 2 come into contact in the metallic strip coating application method for pressing the groove rolls 1 formed by grooving rubber covering the surfaces of outer peripheral parts to the traveling metallic strip 2 and applying the coating material 3 in the grooves of the groove rolls 1 to the metallic strip 2 is determined from the factors affecting the pressing force at the time of pressing the groove rolls 1 to the metallic strip 2, the shape of the groove rolls 1, the properties of the rubber and the contact state of the groove rolls 1 and the metallic strip 2, such as the shapes of the metallic strip 2. The coating weight of the coating material 3 to be applied on the metallic strip 2 is predicted by using the determined pressure acting on the metallic strip. The pressing force at the time of pressing the groove rolls 1 to the metallic strip 2 is then controlled in such a manner that the predicted coating weight of the coating material 3 attains the target coating weight of the coating material 3.

82. 发明专利

JPH10324926A METHOD FOR PREDICTING OVERALL RATIO OF HEAT ABSORPTION IN CONTINUOUS HEATING FURNACE AND METHOD FOR PREDICTING TEMPERATURE OF STEEL SLAB 失效
公开(公告)号：JPH10324926A
公开(公告)日：1998-12-08
申请号：JP14991897
申请日：1997-05-26
申请人： NIPPON KOKAN KK
发明人： ISHIOKA MUNEHIRO , HINO YOSHIMICHI , SUGIYAMA SHUNICHI , TERAMOTO TOYOKAZU
IPC分类号： G01N25/00 , C21D1/52 , C21D9/00 , C21D11/00
摘要： PROBLEM TO BE SOLVED: To quickly and accurately obtain an overall ratio of heat absorption from the initial stage to various kinds of furnace types and operational conditions by beforehand obtaining plural overall ratios of heat abosrptions within changing range of a variating item in the actual operation by heat transfer analysis and predicting the overall ratio of heat absorption from a regression equation using the variating item as a variable in the actual operation. SOLUTION: The overall ratio of heat absorption is beforehand surely obtd. in off-line by numerical calculation estimating the whole operational condition range in an arbitrary furnace shape. Then, in the actual operation, the operational condition is applied in the regression equation to calculate the overall ratio of heat absorption. Since it is enough to execute this calculation, the complicate calculation is unnecessary and the calculation can quickly be executed. As the suitable calculating equation, at the time of using Ti for charging temp. of a steel slab, To for extracting temp. of the steel slab, P for producing quantity, ti for staying time of the steel slab in the furnace, T for furnace temp. in each zone and L for dimensionless position in the furnace longitudinal direction of the zone to calculate the overall ratio of heat absorption, the overall ratio of heat absorption ΦCG is desirable to be obtained by the equation. Wherein, (a) to (g) are the constant values in each zone obtd. from the regression calculation.

83. 发明专利

JPH10195622A METHOD FOR CONTROLLING GALVANIZED COATING WEIGHT 失效
公开(公告)号：JPH10195622A
公开(公告)日：1998-07-28
申请号：JP35676996
申请日：1996-12-27
申请人： NIPPON KOKAN KK
发明人： ISHIOKA MUNEHIRO , MORIKAWA YASUYOSHI , INAGAKI JUNICHI , OZAKI JUNICHI , NAGAYAMA TAKAHARU , YAMASHITA TAKASHI
IPC分类号： B05D3/00 , C23C2/20
摘要： PROBLEM TO BE SOLVED: To precisely control the coating wt., particularly in the thin coated material, by using a galvanized coating wt. predicting equation under consideration of an initial layer formed at the time of passing through galvanizing bath. SOLUTION: A reason, in which the coating wt. is different in the case the kind of steel or Al concn. in galvanizing bath is different even in the same wiping condition and the line speed, is known as because of the formation of the initial alloying layer with Fe-Zn reaction on a steel sheet surface during passing through the galvanizing bath. This formation of the initial alloying layer is affected from the kind of steel, Al concn. in the galvanizing bath, passing through time of the steel sheet in the galvanizing bath and temp. of the galvanizing bath. A quantitative relation between these factors and the galvanized coating wt., is grasped and the galvanized coating wt. predicting equation is obtd. and the galvanized coating wt. is predicted accompanied with the formation of the initial alloying layer to control the galvanized coating wt.

84. 发明专利

JPH09195024A METHOD FOR CONTROLLING COATING WEIGHT OF HOT DIP METAL COATING 失效
公开(公告)号：JPH09195024A
公开(公告)日：1997-07-29
申请号：JP777796
申请日：1996-01-19
申请人： NIPPON KOKAN KK
发明人： MORIKAWA YASUTAKA , ISHIOKA MUNEHIRO , MIHARA YUTAKA
IPC分类号： C23C2/16 , C23C2/20
摘要： PROBLEM TO BE SOLVED: To provide a method for controlling the coating weight of plating adequate for coating at a thin surface density, especially the thin surface density even at high speed. SOLUTION: The coating weight of plating is controlled by blowing the gases discharged from wiping nozzles 5 onto the surface of a strip passed a hot dip metal plating bath in this method for controlling the coating weight of hot dip metal coating. Nozzles with which the gas flow velocity of a supersonic speed is obtainable are used as the wiping nozzles 5. The control of the coating weight of plating is executed by changing the distances between the nozzles and the strip while the header pressure of the nozzles is controlled to attain a specified pressure under which the flow velocity of the gases discharged from the nozzles attains the supersonic speed.

85. 发明专利

JPH09170749A HEATING FURNACE AND ITS OPERATING METHOD 失效
公开(公告)号：JPH09170749A
公开(公告)日：1997-06-30
申请号：JP20828296
申请日：1996-08-07
申请人： NIPPON KOKAN KK
发明人： ISHIOKA MUNEHIRO , SUGIYAMA SHUNICHI
IPC分类号： F23L15/02
摘要： PROBLEM TO BE SOLVED: To enable a reduction in combustion efficiency to be prevented even if an arrangement of heated item or aging variation in a flame or composition of fuel shows a detrain variation by a method wherein a means for sensing ignitable components is arranged at combustion discharged gas output side of a heat accumulation member and a combustion air supplying means is arranged at a combustion discharged gas input side. SOLUTION: Auxiliary combustion air supplying positions are placed within fluid passages 13a, 13b, 13c and 13d of the heat accumulating members 4a, 4b, 4c and 4d near a furnace 1. Under this state, in the case that non-ignited components are detected in the combustion discharged gas, auxiliary combustion air for use in igniting not-yet ignited ignitable components is supplied to a combustion discharged gas input side, namely, supplied to the furnace 1, resulting in that not-yet ignited ignitable components contained in the combustion discharged gas are ignited at an input side of the heat accumulating member 4. Then, heat energy recovered by the heat accumulating member 4 is applied for pre-heating of the combustion air when combustion is carried out with a heat accumulating type combustion burner having heat accumulating member 4, resulting in that a combustion efficiency at the furnace 1 is not reduced.

86. 发明专利

JPH09112883A HEATING FURNACE DISPOSED WITH REGENERATIVE COMBUSTION BURNER 失效
公开(公告)号：JPH09112883A
公开(公告)日：1997-05-02
申请号：JP26563695
申请日：1995-10-13
申请人： NIPPON KOKAN KK
发明人： ISHIOKA MUNEHIRO , SUGIYAMA SHUNICHI
IPC分类号： F23L15/02 , C21D1/52 , F27D17/00
摘要： PROBLEM TO BE SOLVED: To eliminate the decrease in the combustion efficiency without oxidizing material to be heated in a heating furnace having a regenerative combustion burner disposed therein. SOLUTION: The heating furnace has one set or more of regenerative combustion burners 1a to 1d having fuel injection nozzles 3a to 3d provided around the flow of the combustion air supplied from burner throats 2a to 2d into the furnace via thermal storage material to inject fuel substantially in parallel with the flow of combustion air and with two as one set in parallel, and comprises partition walls 4A to 4C provided between the adjacent burners 1a to 1d to prevent the exhausting of the fuel to be injected from the nozzles 3a to 3d of the burners 1a to 1d from the throats 2a to 2d of the burners 1a to 1d during combustion exhaust gas exhausting out of the furnace.

87. 发明专利

JPH09111350A CONTINUOUS HEATING FURNACE AND OPERATION THEREOF 失效
公开(公告)号：JPH09111350A
公开(公告)日：1997-04-28
申请号：JP27139195
申请日：1995-10-19
申请人： NIPPON KOKAN KK
发明人： ISHIOKA MUNEHIRO , SUGIYAMA SHUNICHI
IPC分类号： F23L15/02 , C21D1/52 , C21D9/00 , F27B9/36
摘要： PROBLEM TO BE SOLVED: To provide a continuous heating furnace without oxidizing a material to be heated and lowering the combustion efficiency. SOLUTION: In this continuous heating furnace in which regenerative combustion burners 6 are arranged at the zone other than a soaking zone 2 and continuous combustion burners 3 at the soaking zone 2, at the soaking zone 2 where the continuous combustion burners 3 is arranged, the combustion is executed at low air ratio of

88. 发明专利

JP2586055B2 失效
公开(公告)号：JP2586055B2
公开(公告)日：1997-02-26
申请号：JP24617387
申请日：1987-09-30
申请人： NIPPON KOKAN KK
发明人： ENDO MORINOBU , ISHIOKA MUNEHIRO , NAKAZATO KOJI , OKADA TOSHIHIKO , OKUYAMA YASUO , MATSUBARA KENJI
IPC分类号： D01F9/12 , C30B29/62 , D01F9/127

89. 发明专利

JPH0925552A METHOD FOR CONTROLLING SHAPE OF HOT DIP COATED STEEL SHEET 失效
公开(公告)号：JPH0925552A
公开(公告)日：1997-01-28
申请号：JP17081195
申请日：1995-07-06
申请人： NIPPON KOKAN KK
发明人： ISHIOKA MUNEHIRO , MORIKAWA YASUTAKA
IPC分类号： C23C2/20
摘要： PROBLEM TO BE SOLVED: To provide a shape control method of a hot dip coated steel sheet which can simply decide the position of a roll at the initial stage in on-line. SOLUTION: At the time of executing the shape control of the hot dip coated steel sheet while using a device for executing a sheet shape correction by shifting a support roll 4a arranged at the side part of the steel sheet so as to support the steel sheet 1 to be coated rounded around a sink roll 3 arranged in a hot dipping bath 2 and risen, the shifting quantity of the support roll is calculated from a relational equation IM0 =α.t .σy E .ET to execute a preset. wherein, IM0 is pushing position set at the initial stage of the support roll (m), (t) is the sheet thickness (mm), σy is yield stress (KG/mm ), E is modulus of elasticity (kg/mm ), ET is tangent modulus (kg/mm ) and α, al, a2, a3, a4 are constants decided with the shape and the arrangement of the roll arranged in the bath.

90. 发明专利

JPH08215734A UNIFORMLY COOLING METHOD OF STEEL PLATE 失效
公开(公告)号：JPH08215734A
公开(公告)日：1996-08-27
申请号：JP4791795
申请日：1995-02-14
申请人： NIPPON KOKAN KK
发明人： SUGITA SHINICHI , FUJITA YONEAKI , KIBE HIROSHI , ISHIOKA MUNEHIRO
IPC分类号： G01J5/00 , B21B45/02 , C21D1/00 , C21D9/52
摘要： PURPOSE: To prevent the defective shape by adjusting the water amount from nozzles based on the calculated value of the surface temperature distribution of the lower surface of the steel plate during the rolling corrected from the surface temperature distribution of the upper surface and the temperature distribution in the width direction to unify the surface temperature of the steel plate. CONSTITUTION: The surface temperature distribution of the upper surface of the steel plate 2 is measured by surface scanning type radiation thermometers 4, 4' before or behind a finishing mill 1, while the temperature distribution in the width direction of the lower surface is measured by radiation thermometers 5, 5. The results of measurements are received by an analysis and control device 6, the range of the non- uniform temperature which is higher than the prescribed surface temperature of the steel plate 2 by the prescribed value is established, and the required amount of the cooling water is calculated taking into consideration the steel kind, the thickness, the difference between the set temperature and the measured temperature. The temperature of the steel plate 2 is unified by continuously controlling the water amount of upper surface and lower surface cooling nozzles 8, 8', and 11, 11' installed in the width direction, and the defective shape of the steel plate in an accelerated cooling equipment after the rolling is prevented.

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