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JP2003028166A |
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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JP2003025006A |
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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JP2003021143A |
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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JP3367746B2 |
A two-high cross rolling mill with driven rolls situated one above the other and a pair of rotatably driven guide disks which are supported in rockers which are swivelable around vertical axles and can be adjusted transversely to the swi...
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JP2003501263A |
Arrangement for changing the nut (11), the latter holding a roll ring, on a cantilever-mounted roll shaft (2) having a thread (13) for the nut (11), by means of a changeover apparatus. This has a threaded sleeve (50) which is provided wi...
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JP3365665B2 |
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JP3364605B2 |
A rolling mill oil film bearing has a sleeve (50) with a tapered interior surface (52) axially received on and rotatably fixed with respect to a tapered section (12) of a roll neck. The sleeve has a cylindrical outer surface (54) journal...
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JP2003004035A |
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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JP3362685B2 |
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JP2002361308A |
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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JP3354923B2 |
A wiper apparatus which sandwiches a strip plate 2 between upper and lower wiper rolls 3 and 4 to squeeze out a rolling oil adhering to the strip plate 2, wherein backup rolls 5, 6 for reinforcing the wiper rolls 3, 4 each have a single ...
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JP2002541318A |
A plain bearing for necks of rolls of rolling mills includes a bearing bushing of metal and a plain bearing alloy introduced into the bushing. The plain bearing alloy is based on tin with antimony and copper and contains of 6.8 to 7.2 pe...
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JP3351949B2 |
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JP2002339997A |
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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JP3348503B2 |
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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JP3348837B2 |
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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JP2002331302A |
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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JP3345593B2 |
An assembly for producing a finished shape for a rod after the last rolling stage of a multi stand steel mill. This apparatus provides an operation for correcting minor surface irregularities and shape distortion of the rod as it exits f...
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JP2002321001A |
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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JP3336784B2 |
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JP2002301507A |
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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JP3334771B2 |
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JP2002282912A |
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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JP2002282913A |
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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JP3330371B1 |
In a rolling mill (101) with upper and lower drive motors (174 and 184) arranged oppositely to each other with respect to paired upper and lower work rolls (131 and 141), changing of the upper work roll (131) is carried out such that a c...
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JP2002266853A |
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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JP3326101B2 |
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JP2002263703A |
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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JP2002254104A |
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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JP2002529250A |
(57) [Summary] The present invention allows the upper and lower work rolls to be paired together with the backup rolls assigned to them, in some cases, by vertically dislocating the chock bearing each roll inside the housing window. Arou...
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JP3322984B2 |
The invention relates to an installation for the cold rolling of rolling stock in strip form comprising a reversing stand (2) arranged between two coiling/uncoiling reels (8,9). Using single-stand reversing mills of this kind it is possi...
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JP3322336B2 |
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JP3322184B2 |
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JP3321347B2 |
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JP2002248510A |
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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JP2002239605A |
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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JP3317632B2 |
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JP3317311B2 |
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JP3319102B2 |
PURPOSE: To efficiently change the roll of a vertical mill without using an overhead traveling crane. CONSTITUTION: A supporting frame 4 is constructed above a vertical mill 1, and a supporting frame 7 is constructed above a roll shop 6 ...
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JP3315643B2 |
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JP3315633B2 |
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JP3315371B2 |
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JP2002224722A |
To prolong the life span of bearings and components by preventing roll bearings from being suffered from overload in a method for controlling or adjusting rolling process of a rolled product 1 and a device therefor in the rolling line of...
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JP3310807B2 |
PURPOSE: To stabilize the roll gap of a rolling mill and to improve thickness accuracy of a rolled metal plate by stabilizing the oil column in a screw-down cylinder in a method for suppressing and controlling resonance in the hydraulic ...
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JP3311959B2 |
To stably start rolling without lowering yield and without generating unstable phenomena such as the defect in shape of a rolled stock. In this control method, a specified offset position where horizontal deflection which is generated on...
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JP2002523242A |
A roll stand with backup rolls and work rolls for rolling sheet and strip in which the upper and lower work rolls, together with the backup rolls associated therewith, can be displaced from the common vertical plane into positions in whi...
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JP3307551B2 |
To provide a driving device for rolling mills, rolling mill and rolling method by which the quality of a plate surface, the breaking accident of a spindle and fatal damage of a roll are prevented and the increase of rolling speed and red...
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JP3305840B2 |
PURPOSE: To provide a roll supporting structure for rolling capable of setting a gap between rolls without moving back. CONSTITUTION: A roll supporting structure for rolling is provided with at least one set of supporting rolls 6 consist...
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JP3307578B2 |
To efficiently change rolls when a part of rolls is used in common. Rolls are changed in a following process. One end side of a roll shaft 2 to which both side chocks 3a, 3b are attached is supported in a cantilever state. The chock 3b o...
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JP3306023B2 |
To surely prevent the inflow of cooling water on the side of a roll neck and to prevent the damage of an oil seal by forming an annular projection opposed to the outer end face of an eccentric seal retainer with a gap to the inner end fa...
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