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JP2000282137A |
To improve the heating quality of a steel ingot and also the treating capacity by selecting an optimum heating operation according to the kind of the steel ingot. In the front part at an one side in the longitudinal direction of a furnac...
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JP2000272834A |
To provide a device for preventing wire thinning and disconnection at the time of continuously annealing wire. This device is constituted of a tension roll 7 installed on an entrance side of a strand type wire annealing furnace 1, a dete...
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JP3093077B2 |
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JP3093514B2 |
PURPOSE: To provide a method and device for controlling the roll quenching where the continuous measurement of the temperature of the surface of the roll and the cooling thereof according to the target pattern are continuously and automa...
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JP2000246310A |
To provide a method of rolling a seamless steel pipe of a high-load material, high in wall thickness accuracy in the longitudinal direction and uniform in material quality, by preventing temperature distribution in the longitudinal direc...
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JP2000239750A |
To prevent generation of flaws and warps on a plate surface when a plate is annealed while passing the plate by providing an upright feed roll to convey a strip-like stock to be annealed in an upright condition in the width direction on ...
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JP3081123B2 |
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JP3081729B2 |
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JP3072680B2 |
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JP3070100B2 |
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JP3069494B2 |
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JP2000190017A |
To provide a wide-flange shape steel flange cooling equipment to strongly cool the flange of the wide-flange-shape steel in an accelerating way after finish rolling the wide-flange shape steel in order to efficiently manufacture a wide-f...
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JP2000167615A |
To provide a method and device for controlling coiling temperature for reducing the influence of disturbance by determining the quantity of cooling water in real time by fetching the temperature variation of a rolled stock and temperatur...
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JP3054031B2 |
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JP2000160259A |
To provide an allocation deciding method, with which plural heating materials, such as slabs, can be alloted to plural heating furnaces having different efficiency so as to minimize the consumption of fuel.The max. number of heating mate...
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JP2000160260A |
To quickly execute the heating treatment in the non-contacting state without developing large difference between the temp. of a material to be heated and the temp. at each part in a furnace by disposing infrared sources for heating the m...
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JP3050674B2 |
PURPOSE: To provide a material supplying method and a temp. control method, by which the material having different heat pattern can continuously be heat- treated by effectively utilizing space in a continuous furnace having no partition ...
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JP3046855B2 |
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JP3046467B2 |
PURPOSE: To enable the automation of temp. rising in a heating furnace, to prevent excess speed of the temp. raising in completing the temp. rising within a short time. CONSTITUTION: The temp. DT in the heating furnace is detected to exa...
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JP2000144239A |
To provide a heat treatment furnace which can execute the heat treatment in a good energy efficiency and at a low cost. A holding chamber 5 for holding a material to be treated, is arranged. Then, a hot blast generating chamber 1 freely ...
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JP2000144255A |
To stably roll silicon steel sheet, grain-oriented silicon steel sheet, etc., by measuring the temperature of a work after rough rolling, and regulating the temperature based on the measured value. A work is heated using an induction hea...
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JP2000140926A |
To heat only the effective part of a sheet bar and to save energy by measuring each length of the crop ends on the tip side and crop end on the tail-end side of the sheet bar and heating the sheet bar from the rear end of the crop end on...
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JP3040254B2 |
PURPOSE: To control a rolling speed to a fixed value by adequately and automatically setting the maximum speed of a rolling mill constituting a continuous treating equipment. CONSTITUTION: A speed reference of an inlet side equipment 1 s...
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JP3038992B2 |
PURPOSE: To eliminate the fluctuations in carburization conditions in accordance with the history of carburization degrees in the respective carburization positions of members to be carburized in a continuous carburization furnace and to...
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JP3037131B2 |
To provide an operational method of a pusher furnace for aluminum slab, shortening the waiting time and enabling the improvement of operating ratio. In the pusher furnace for aluminum slab composed of plural zones independently controlli...
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JP3028995B2 |
PURPOSE: To provide a control method for obtaining the desirable temp. in the annealing treatment, in the case of regulating the passing velocity of a continuously fed strip from the operational condition in the carburizing treatment. CO...
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JP2000503462A |
A heating system and method for heating a metal strip to within a predetermined temperature tolerance range while the metal strip serially travels through a heating system. The heating system has at least one preceding heating section, a...
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JP2000073126A |
To accurately estimate the temp. of a material and to control combustion in good balance by using an on-line model to estimate the temp. of a furnace wall in a heating furnace and the temp. distribution in the thickness direction of the ...
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JP2000063958A |
To provide a continuous annealing method of a metallic strip, with which the C-shaped warping of the metallic strip can be restrained to insignificant level by varying the traveling form into a prescribed form of the metallic strip in a ...
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JP2000054032A |
To provide a control device for composition for an annealing furnace which provides a means accurately controlling the transition of sheet temp. near the welded point at the time of executing a continuous annealing treatment, even in the...
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JP2000054033A |
To prevent the development of error in the total manipulated variables by suitably distributing fuel flow rate in each zone regardless of the upper and the lower limited values of the fuel flow rate in each zone. In a distributing device...
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JP3011977B2 |
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JP3007107B2 |
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JP2000026920A |
To execute the heat treatment of a small diameter metallic columnar material while sustaining the development of bending in little by facing plural receiving rollers to one pair of pushing rollers in at least one set just before and one ...
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JP3003062B2 |
PURPOSE: To efficiently heat and eject a part of steel slabs at the different temp. from the other steel slabs by a simple method in a continuous type heating furnace. CONSTITUTION: At the time of heating and ejecting a part of the steel...
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JP3003165B2 |
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JP2000015379A |
To easily manufacture even parts having a complicated shape, further to improve productivity and moreover not to generate the reduction of wear resistance owing to the generation of a decarburized layer, the complication of a process and...
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JP2999665B2 |
A bake hardenable steel sheet ready for deep drawing is coated on at least one side with a continuous chromium bearing epoxy coating. The sheet is roll coated with continuous liquid film containing at least 2 wt.% of a water dispersible ...
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JP2998897B2 |
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JP2997003B2 |
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JPH11350098A |
To provide a metallic strip vibration restraining method in a metallic strip continuous production line which can efficiently and economically restrain the vibration of the metallic strip. A damping device 5 having one pair of rolls 6 ho...
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JPH11350023A |
To improve the stopping accuracy to a target stopping position in material transportation with a roller table. In a material transporting control device for controlling the transportation and the stop of the material with the transportin...
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JP2991922B2 |
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JPH11335739A |
To maximize a rolling efficiency and to improve a fuel consumption unit by deciding weighing allocation to every slab based on a thickness, a width, a kind of steel, a charging temp., a planned in furnace time, etc., of preceding and fol...
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JPH11335745A |
To obtain a control method of the temp. of a steel strip in a continuous annealing furnace, in which the temp. responsiveness is excellent without adverse effect to the other furnaces. A steel strip storing zone 5 is arranged between a h...
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JP2984180B2 |
PURPOSE: To control the distribution of the rolled slab by determining the optimum rolling order in the hot rolling process and the optimum charging order in heating furnaces. CONSTITUTION: The furnace where the slab is charged, the heat...
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JP2984182B2 |
PURPOSE: To control such physical distribution of rolling slabs within processes that enables decision of the optimum rolling order and charging order in a heating furnace. CONSTITUTION: In a rolling process consisting of plural heating ...
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JP2984181B2 |
PURPOSE: To control the material distribution in the process in a material distribution system of the treatment process in a hot rolling shop, a steel plate annealing shop, etc., handling the steel process. CONSTITUTION: In order to dete...
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JPH11323497A |
To provide a steel pipe for construction purposes, having practical atmosphere corrosion resistance particularly in an environment where 0.05 to <10 mdd salt comes flying. The steel pipe is produced by using, as a base material, a ferrou...
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JP2979913B2 |
PURPOSE: To prevent the development of uneven temp. distribution in the metal strip width direction even in the case a metal strip being changed in the width enters, at the time of cooling the metal strip with a nozzle header. CONSTITUTI...
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