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JP3398793 |
To manufacture a thin and wide sheet material with a 4-stage rolling mill of a low price and to realize high rolling accuracy. With a 4-stage rolling mill, a holder 3 is fixed to a bearing box 4 of a backup roll 2. The rotating shaft of ...
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JP2003048005 |
To improve the accuracy of the thickness of a rolled stock by suppressing impact force which is generated when the rolled stock is bitten with rolling rolls, with respect to a rolling mill and its operating method. Hydraulic cylinders 21...
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JP2003048006 |
To enable high efficiency rolling by preventing the vibration of a mill by improving the workability of a fluid-pressure cylinder and also to enable performing rolling in a stable state by reducing backlash between the housing and the ro...
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JP3397877 |
PURPOSE: To provide a method and apparatus for hot rolled strips which are capable of freely setting up a rolling program and sufficiently satisfy the requirements for the accuracy and flatness of the cross-sectional surface of the rolle...
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JP2003035372 |
To provide a highly reliable sealing device which has improved sealing performance. A sealing member 3 comprises a seal lip 3a which is formed so as to have a thin plate shape having almost constant thickness and extending toward the out...
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JP3394761 |
To provide a simple small-sized housingless roll stand, that only two screw piers are needed to adjust symmetrical separation of rolls. This roll stand is provided with a supporting structure 12 fixed in a prescribed position along the c...
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JP3394729 |
To make a housing compact and to reduce the cost of equipment of a spare housing for a tandem mill composed of many rolling stands. This mill consists of a roll unit B in which plural rolls are arranged and drive unit A for rotationally ...
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JP3393230 |
To improve both sealing performance with seals on both sides in the axial direction and introducibility of lube oil mixed with air in the bearing device of the rollneck of a rolling mill. This bearing device is provided with a four-row t...
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JP2003028166 |
To prevent the early damage and early separation (hydrogen embrittlement separation) even under a bad lubricating environment such as mixing the intruded water and the like with a lubricant, and to prolong the life be reducing the intrus...
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JP2003025004 |
To increase the number of cycles while evading drawback in manufacturing technology and tool exchange by improving a cross rolling machine having a form described at the begining.A pair of rolls are mechanically connected to each other w...
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JP2003025003 |
To obtain a configuration system of rolls, by which technical drawback in deforming work is evaded and tools are easily and rapidly exchanged by improving a cross rolling machine of a form described at the beginning.A tool 6 is formed as...
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JP2003025006 |
To provide a method capable of forming a taper body excellent in characteristics and quality at a low cost and to provide a rolling device used therefor.With the rolling device capable of forming and opening of the gap for rolling, a bas...
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JP3392969 |
PURPOSE: To improve the accuracy of a plate thickness in the plate width direction, and to attain a cold rolled steel strip with a few yield losses. CONSTITUTION: When performing the cold rolling of a steel strip by arranging a work roll...
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JP2003021143 |
To increase productivity by reducing time to repair a hydrostatic bearing.The hydrostatic bearing 1 has two top plates 6 arranged to cover respective open shoulder portions 9 of a raceway 3. In the arrangement, an edge 6a of each top pla...
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JP3392366 |
To prevent a lubrication oil of a reduction screw part from dropping down to a lower part roll and a strip by arranging an oil seal between a reduction screw having a quick open mechanism to a tip and a nut and applying a surface hardeni...
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JP3390768 |
PURPOSE: To extend a lifetime by preventing generation of roller locking when an offset load from upper/lower two work rolls is applied. CONSTITUTION: The bearing device 1 is provided with a radial type roller bearing 2 and a supporting ...
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JP3391280 |
To prevent the bend of a tube generated by the deviation of the pass line of a three-roll type sizing machine in a tube-making process from the reference point. Position regulating mechanisms 4a, 4b, 4c, 4a', 4b', 4c' with which the roll...
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JP2003019504 |
To provide a play suppressing apparatus for rolling mills with which the deformation of a roll chock is minimized in such a manner that the clearance between a chock and a housing is eliminated, the application to an existing mill is eas...
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JP3389035 |
To smoothly slide guide blocks without loading a bending moment to bearing housings by providing the attaching and detaching mechanism capable of attachably and detachably installing the engaging part of the roll end part pivotally suppo...
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JP3388969 |
To absorb the impact force caused by the crash of the top end of a ratch with the top end of a work roll by vertically operating the ratch of a connecting device by a center trunnion both rods type air cylinder having a spring. A roll 1 ...
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JP3387773 |
To automatize roll changing work by precisely making the stop position of a roll shaft at the time of changing rolls a constant position to enable key fitting. The stopping device of the roll shaft is provided with the supporting pin 12 ...
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JP3388105 |
To provide a method for adjusting the zero point of screwdown location suitable to a 2-stage horizontal rolling mill the reduction fastening force of which is small or with which kiss-roll is impossible and device therefor. Hydraulic jac...
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JP2003004035 |
To provide a bearing device with improved sealing performance and excellence in disassembling and assembling workability.There is provided a bearing device comprising an inner race divisible axially, an outer race divisible axially, coni...
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JP3383818 |
PURPOSE: To prevent the generation of rust in the projecting parts at both ends of roll shaft by force-fitting a sleeve made of a corrosion resistant material on the outer periphery of the projecting parts at both ends of roll shaft. CON...
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JP2002361308 |
To provide a hydraulic drafting device of a rolling mill capable of overcoming instability with the influence of mutual cylinders since the rod side pressure room of each cylinder communicates with each other in the hydraulic drafting de...
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JP2002361307 |
To provide a carrier device for replacement of a rolling mill capable of shortening the construction period and reducing the construction cost when installing the rolling mill. In the carrier device for replacement of the rolling mill pr...
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JP3378453 |
To make operation simple and to reduce the possibility of damage during working by arranging the stationary part of a tie rod which is protruded from a capsule by penetrating a sleeve and passing through the stationary part on the opposi...
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JP2002339997 |
To prolong a service life of an entire bearing of seal type by maintaining sealability of a seal for a long time.In the bearing of seal type, re-assembly with right and left seal members exchanged with each other is performed by forming ...
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JP2002331302 |
To provide a backup roll and a bearing device with a high degree of accuracy at reduced costs from the different viewpoint from conventional cases.By holding a small cylindrical portion 32 with the bearing device 20 on a holding portion ...
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JP2002321001 |
To provide a rolling method and device for a reinforced rod steel capable of improving a reduction ratio in a rolling line and reducing numbers of rolling mills and times of changing rolling mills.This rolling method and device is to man...
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JP2002301507 |
To reduce the wear of an abutting flange and to reduce the cost of a lubricating means in a slide roll for rolling a special shaped rolled stock with a rolling stand provided with a pair of grooved rolls whose calibers are divided with t...
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JP2002282904 |
To provide an inexpensive multistage rolling mill which does not need a conventional press-down block and is capable of controlling the configuration of a material to be rolled, and also a multistage rolling mill wherein the application ...
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JP2002282912 |
To provide a rolling mill which can reduce a secular change in a mill constant and cut installation costs by narrowing the range of repair work such as stainless steel cladding.A thread 10 made of steel and so on for changing rolls which...
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JP2002282913 |
To enable precise and easy roll gap setting, providing a method which extracts a roll gap setting range to achieve target product dimensions, in a roll gap setting for a universal rolling mill.After collecting actual rolling data (roll g...
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JP2002266853 |
To provide a bearing device for back-up roll that can elongate service life of a whole apparatus, by equalizing service life of rollers.A clearance δ2 among rollers 22A, 22D of a line outside a central line formed of rollers 22B, 22C, a...
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JP2002263717 |
To provide a leveling adjusting method by which the time for changing work rolls is shortened and the threading performance of a steel strip is improved from the first rolling after changing the work rolls by evaluating the amount of qua...
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JP2002263703 |
To provide a finishing part of a rolling device for manufacturing a wide range of finished products by rolling a supplied raw material having a selected size.This device has a plurality of multistage before-finish rolling devices 10, 12 ...
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JP3348503 |
PURPOSE: To provide a roll for rolling mill having high degree of freedom in a curve imparted to the external surface of a roll barrel, large controlled variable of crown and minimized vibration factors of the plate and to provide a roll...
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JP3348837 |
To prevent a lubrication oil of a reduction screw part from dropping down to a lower part roll and a strip by arranging an oil seal between a reduction screw having a quick open mechanism to a tip and a nut, conducting sealing and arrang...
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JP2002254130 |
To provide a detachable mechanism for a rotatable annular grooved leveling roller around a spindle.A spindle (1) has an air space (4) into which a pusher (9) is inserted, and the pusher (9) has tapered thrust surfaces (9a, 9b) which disp...
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JP2002254104 |
To provide rolling facilities and its front and rear face facilities capable of performing an efficient and less risky roll recombination toward workers and capable of requiring no large space around the rolling mill in the section steel...
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JP2002248501 |
To provide a rolling method by which the thickness in a portion of a different thickness can be formed uniformly even though the portion of the different thickness is formed by turning a rolling means.This stay plate is made thin locally...
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JP2002248511 |
To prevent squeezing and meandering of a strip which are apt to occur at the time of contact between a rolling material and rolling rolls, and to improve productivity, by eliminating a positional deviation of both ends of rolling rolls d...
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JP2002248510 |
To provide a device for the roll rearrangement of a rolling machine which can be adapted for the device for the roll rearrangement of a side shift system easily, inexpensively and in a short time.This device is provided with in-and-out r...
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JP2002239603 |
To prevent the generation of slip and surface flaws of rolls when rolling a metallic strip by driving only one work roll.A rolling schedule, rolling speed, screw-down location, screw- down/releasing speed of a roll and formula (1) by whi...
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JP2002239608 |
To provide a cluster type split housing rolling mill which suppresses degradation of the mill rigidity, and has excellent thickness control capacity.Two pass line adjustment devices 15 and 16 are disposed between the upper side of an upp...
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JP2002239605 |
To provide a different thickness rolling mill capable of holding a work and performing difference thickness rolling of the work by utilizing the pressing force of a ram of a press.This different thickness rolling mill having a pressing l...
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JP2002239609 |
To realize stable rolling by suppressing the deflection of work rolls and without making the bearing boxes of the work rolls flactuate in tandem rolling equipment and its rolling method.The axial center of the work roll 1 is offset on th...
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JP2002235735 |
To prevent leakage of lubricant under general using conditions.A seal unit for mutually sealing rotary machine components, especially for a seal unit for a casting roller is fitted to a rotating member, having first and second bases 17 a...
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JP2002228007 |
To provide a sealing apparatus for a roll of a rolling mill capable of preventing occurrence of chattering noise at an elastic lip caused by depressurization, with simple structure.In the sealing apparatus, inner and outer ring member 2,...
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