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JP2001219211 |
To provide a method by which the accuracy in the width of a rolled stock is improved and which is effective to width drop when a slab of steel or the like is made into the rolled stock of a prescribed width from a wide slab with the equi...
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JP2001219212 |
To provide a pinch roll with which the meandering of a steel sheet which is generated by unbalanced pressurization on the right and left of the pinch roll for pressing the steel sheet by being pressurized from the up-and-down direction a...
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JP2001219201 |
To suppress the bends of a material after edging by properly centering a slab with side guides even in the case the variation of width and bends of the slab are large.In this device, an opening degree adjusting mechanism for presetting i...
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JP3219555 |
PURPOSE: To provide an excellent joining part by correctly and easily forming the clearance between the rear end part of the preceding plate and the front end part of the succeeding plate which are opposite to each other, and improving t...
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JP2001212607 |
To provide a method of projecting a plate shape and/or metal flow after the final rolling pass in three dimensions and determining a schedule of rolling passes and conditions for heating a slab to minimize an amount of crop.Based on a th...
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JP3216558 |
To provide a traveling type supporting device for materials to be transported with which a material to be transported such as a billet is stably supported, also a roller pitch is made small without taking up large space and which is obta...
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JP3217641 |
PURPOSE: To stably execute continuous hot finish rolling without lowering strength because blow holes are not generated in a butt-joined part between the rear end of a preceding steel and the front end of the succeeding steel. CONSTITUTI...
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JP3217904 |
PURPOSE: To impart sufficient joining strength between mutual billets and to execute stable continuous hot rolling without breaking separation of sheet because discrepancy and buckling of sheet that are generated at the time of butt join...
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JP3217503 |
PURPOSE: To receive upward force that acts on the main body of slide with a guide rail through a lifting preventing roller and to prevent the lifting of the main body of slide by bringing the lifting preventing roller into press-contact ...
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JP2001205317 |
To provide a steel extracting method in continuous hot-rolling by which the time required by the time the steel reaches the position of the target catching-up section is minimized, moreover, joining is surely performed by making the rear...
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JP2001205404 |
To provide a fettling method which removes the fins sticking to the lower edges of the gas cut surface of a slab on a slab refining line with small equipment. This fettling method in gas cutting of the slab consists in disposing nozzles ...
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JP2001205307 |
To straighten a camber after rolling over the whole range of thickness even when the thickness of a rolled stock is varied with the straightening device which is attached to a reverse mill such as a roughing mill of a hot-rolling line. T...
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JP3215332 |
To obtain the same width as that of a steady part in the vicinity of the joined part on the oulet side of finishing in spite of the temp. distribution in the vicinity of the joined part and the variation of tension in finish rolling. In ...
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JP3212224 |
PURPOSE: To prevent a sheet from breaking by tracking a joined part between a preceding and a succeeding sheet and rolling so that the ear may be expanded in the sheet shape at each stand from the front to the rear as the joint part pass...
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JP2001191216 |
To improve a high speed shear for cutting a steel plate so as to surely perform an exact cutting in case of fast steel plate speed and in case of minimum steel plate thickness. This high speed shear is provided with a first cutter drum 1...
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JP3208821 |
PURPOSE: To shorten a rolling reduction cycle for one slab in the width rolling reduction of the slab. CONSTITUTION: A front part pressing surface 10b and a rear part pressing surface 10c sloped to the front side and the rear side of a c...
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JP3210542 |
PURPOSE: To shorten the time required for tack welding, and to accelerate line speed by butting the rear end part of a preceding slab and the tip part of a succeeding slab, performing the tack welding of the whole widths of the slabs, ma...
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JP3210543 |
PURPOSE: To attain an inexpensive technology suitable for the modification of an existing mill, by which a sheet bar is joined by arc welding, laser welding and electron beam welding on the inlet side of a finishing mill when performing ...
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JP2001179334 |
To enable an exact connection of a material making a succeeding material exactly to catch up a leading material at the initial stage of continuous rolling. The hot rolling equipment comprises roughing mills r3, r4 that conduct rough roll...
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JP2001179301 |
To provide a method and an apparatus for centering hot slab in the width pressing equipment which carries out draft with the width pressing, centering the hot slab at the side guides of the inlet side and the exit side. The centerline is...
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JP3201662 |
PURPOSE: To provide a means for removing a surface flaw efficiently and going a flaw removing process on line in a rolling line for a steel material. CONSTITUTION: An abrasive material is sprayed by a high pressure fluid jet current, tha...
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JP3203032 |
PURPOSE: To reduce the width of a hot bloom cast in a continuous casting plant by laterally pressing the bloom between movable pressing tools, so that a stroke eccentric member may be moved toward each other and away from each other by a...
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JP3202569 |
To provide a method for stably manufacturing a hot rolled steel sheet without breaking the sheet during joining, finish rolling and coiling in the method by which finish rolling is continuously executed after joining the rear end part of...
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JP3202445 |
PURPOSE: To improve sledding property of a strip and maintenance property of a line by providing one of pinch rolls at the tip part of the inlet side of an intermediate clamp plate and providing the off-line shift mechanism to the interm...
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JP3202581 |
To eliminate the positional deviation between a shifting master and a shifting sleeve by giving the positional deviation between the master and the slave during shifting only to an adding circuit at the slave side as a velocity correctin...
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JP2001162304 |
To manufacture even a foil too thin and wide to stand on its own bottom by rolling easily and acculately.In a rolling mill for metal foils with which rolling is applied a base stock S for rolling by feeding a planar base stock S for roll...
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JP3200220 |
PURPOSE: To simply join a preceding and a succeeding billets with a high strength in a short time by obliquely cutting a rear end part and a tip part placed one upon another by cooperative operations of a shearing blade and an intermedia...
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JP3198431 |
To continuously process ground slag which is generated at the time of grinding burrs with grinding wheels in the welded part of a billet in continuous rolling, without being accumulated. At the time of grinding the burrs 3 in the welded ...
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JP3199204 |
PURPOSE: To realize the smooth biting into a rolling machine by suppressing the vibration in the frictional sliding. CONSTITUTION: The rear end of a preceding sheet bar 32a is clamped by a preceding holding block 4 from the top and the b...
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JP2001157909 |
To solve troubles that, when a wide stock is cropped, the cropping length in the width direction is increased, a crop is hooked or bridged in a crop shear or in a crop bag to cause the blocking.Circumferential cutting blades 11 and 12 ar...
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JP3197502 |
To prevent a tip biting defect, contraction at a tail end in tailing off and doubling up of a tail end and a tip end by starting rolling as setting at least a first one of a most tip end plate thickness to a specified value or more, thin...
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JP2001150014 |
To provide a method for crude bars for metal rolling which takes account of the fluctuation in lengthwise temperature of the crude bars of metal rolling during the process of metal rolling for finishing in order to reducer dispersion in ...
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JP2001150018 |
To provide an effective descaling method for a billet preventing the formation of red scales.In the descaling method for a billet extracted from a furnace before a hot rolling, the billet extracted from the furnace is pressed in the late...
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JP2001150004 |
To provide an edge mirror causing no winkle due to buckling in a steel sheet even in the case where it is applied in particular to the thin steel plate.The edge mirror for a steel plate is provided with a cutting head 37 provided with a ...
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JP2001150003 |
To form a part of a board material into a thin shape, and to form the thin part of the board into a trapezoidal shape by rotating a rolling means on the turn table, thereby achieving lightening in weight of the board and reducing the cos...
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JP3194561 |
PURPOSE: To easily and surely execute the positioning in the width direction by holding the steel strip by a pair of pinch rolls to move the steel strip in the width direction in joining the preceding steel strip to the succeeding steel ...
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JP3192375 |
To provide a tool changing device for a hot slab width press capable of safely and easily inserting a new tool into a tool storing device and taking out a used tool from the same. Press tools 4, 4' installed to reciprocating blocks 2, 2'...
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JP3191469 |
PURPOSE: To prevent the buckling of a rolled stock and the positional deviation of the rolled stock after releasing guide plates by pressing the rolled stock with press rolls which are provided on the guide plates of side guides. CONSTIT...
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JP3191461 |
PURPOSE: To reduce frictional resistance between bed plates and a housing, to prevent the vibration of the floor surface and to absorb the expansion of a housing due to the thermal effect by inserting rollers between the bed plates and t...
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JP3193343 |
To prevent overabandance of the tail end of a strip or the like at the time of coiling the tail end of the cut strip with the coiling device on the downstream side. When the strip which is coiling with the coiling device on the downstrea...
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JP2001137911 |
To provide a joining device of hot steel materials, by which the slipping of clamping in an interpose pressing and pushing pressing process to joining parts is prevented and at the same time, the load reducing phenomenon at the rolling p...
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JP2001137908 |
To prevent the splitting at the tip part of a high sulfur free-cutting stainless steel when the hot-rolling is executed. The rolling is temporarily stopped after completing the rough- rolling, and the hot-rolling workability at the porti...
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JP2001137906 |
To provide a break detecting method for taking a proper counterplan by detecting the generation of break in a joined part promptly in endless rolling. By measuring the electric currents of driving motors for a pinch roll and a coiling ma...
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JP3189919 |
PURPOSE: To restram buckling at the front and rear ends of a slab by equipping a pair of upper and lower main holding rolls in the center of the slab width and plural upper and lower holding rolls at either an inlet side or an outlet sid...
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JP3190785 |
PURPOSE: To improve the cutting position precision of a metal pipe. CONSTITUTION: An electric motor controller is equipped with a fuzzy processing means 10 which estimates the degree of generation of the slip of a metal pipe on a transfe...
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JP3185334 |
PURPOSE: To easily joint hot steels in a short period during traveling by sliding the other joining face for one joining face to give frictional force to both joining faces. CONSTITUTION: The hot steels 2 and 3 of a hot line 1 are joined...
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JP3187697 |
To eliminate the difference in level of a welding at the inlet side of a pickling line and enable the smooth treatment without causing the excess of a coil by specifying the sheet thickness of the welded part at the inlet side of the pic...
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JP3182820 |
PURPOSE: To lower the extracting temp. from a heating furnace and to reduce bend of material by constituting a part of roughing mill group of a specified number of reversible 2-high mill and making the distance between mutual mills a spe...
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JP2001113301 |
To provide a rough rolling method of a bar steel whose rolling crack at the inner and the outer parts is hardly generated by using flat rolls, even when a continuously cast billet is directly fed into a rolling line without cooling and c...
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JP3182022 |
PURPOSE: To provide a device of simple construction for rolling-down a metallic sheet width capable of preventing the plate camber of the metallic sheet generated at the time of rolling-down of the width and deforming the metallic sheet ...
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