US3147648A - Strip mill with roll cartridge - Google Patents

Strip mill with roll cartridge Download PDF

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Publication number
US3147648A
US3147648A US205372A US20537262A US3147648A US 3147648 A US3147648 A US 3147648A US 205372 A US205372 A US 205372A US 20537262 A US20537262 A US 20537262A US 3147648 A US3147648 A US 3147648A
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United States
Prior art keywords
cartridge
mill
bore
rolls
shafts
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Expired - Lifetime
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US205372A
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English (en)
Inventor
Sendzimir Tadeusz
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T Sendzimir Inc
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T Sendzimir Inc
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Filing date
Publication date
Priority to BE634026D priority Critical patent/BE634026A/xx
Application filed by T Sendzimir Inc filed Critical T Sendzimir Inc
Priority to US205372A priority patent/US3147648A/en
Priority to GB22128/63D priority patent/GB989047A/en
Priority to FR937029A priority patent/FR1364840A/fr
Priority to AT493863A priority patent/AT269792B/de
Priority to DE19631427998 priority patent/DE1427998A1/de
Priority to BR150140/63A priority patent/BR6350140D0/pt
Application granted granted Critical
Publication of US3147648A publication Critical patent/US3147648A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • B21B13/147—Cluster mills, e.g. Sendzimir mills, Rohn mills, i.e. each work roll being supported by two rolls only arranged symmetrically with respect to the plane passing through the working rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
    • B21B31/26—Adjusting eccentrically-mounted roll bearings

Definitions

  • the invention relates to rolling mills for metal and other strip material, and more particularly to improvements on mills characterized by the use of very thin work rolls which are supported substantially along their whole length by intermediate rolls. The intermediate rolls are supported in turn by freely rotating casters alternating on their shafts with fixed supports mounted in a very rigid mill housing. Such a mill is disclosed in applicants United States Patent No. 2,776,586.
  • mills of this type enable metal strips to be rolled with great accuracy.
  • the effective use of very small rolls makes it possible to reduce even relatively hard materials down to very light gauges.
  • Such mills also permit change in the crown or profile of the mill thereby controlling the flatness of the strip produced. It has been found, however, that in mills of this type the work rolls, backing rolls, and other precision parts, as well as the guides and spraying means for coolant lubricant are exposed to severe damage upon the occurrence of a cobble, that is, when a strip, instead of passing through the mill, flat and under tension, passes instead in a folded-up state.
  • FIGURE 1 is a perspective view of the lower half of a mill cartridge with the rolls and casters removed.
  • FIGURE 2 is a side elevation of the mill housing with the cartridge in place.
  • FIGURE 3 is a sectional view taken along the section line A-A of FIGURE 2.
  • FIGURE 4 is a partial cross-sectional view of the work rolls and supporting rolls taken along the line BB of FIGURE 3.
  • FIGURE 5 is a perspective view of a lower drawer member showing the coolant jets.
  • FIGURE 6 is a partial cross-sectional view of the spring means for raising the lower cradle prior to removal of the cartridge.
  • FIGURE 7 is a side elevation of the mill with a cartridge in place. Part of the figure is in section to show a two-high roll arrangement.
  • FIGURE 8 is a cross-sectional view taken along the line CC of FIGURE 7.
  • FIGURE 9 is a partial sectional view taken along the line DD of FIGURE 3 showing the independent crown control means.
  • FIGURE 10 is a partial sectional view taken along the line E-E of FIGURE 9.
  • the mill of the present invention is provided with a rigid housing generally indicated at 1. It has a bore 3 extending through it from side to side, and front and rear openings 3a and 3b for the entrance and exit of the material being rolled.
  • the housing is generally like that of the mill of the patent first mentioned above, and may have elastic deflection characteristics heretofore known in such housings.
  • the single bore 3 extending axially through the center of the housing receives a cartridge generally indicated at 4, for mounting the work rolls and support mechanisms therefor.
  • the cartridge is made up of two halves or cradles indicated at 2 and 2.
  • the lower cradle 2' is illustrated in FIGURE 1.
  • the cradle 2 is in the form of a hollow half-cylinder shell 4 with a plurality of spaced ribs 5 perpendicular to its axis.
  • the elements 2 and 2' with the ribs are preferably but not necessarily formed as an integral casting. Certain surfaces will be machined as hereinafter pointed out.
  • the spaced ribs 5 have a plurality of perforations 7, the axes of which are parallel to the axis of the cradle, corresponding perforations in the several ribs being coaxial.
  • the perforations 7 house the double eccentric bearings as shown at 81 and 70 in FIGURE 9. These are the bearings for the caster supporting shafts 82, later described.
  • the number of such backing shafts will determine the number of groups of coaxial holes in the ribs, the cradle illustrated in FIG- URE 1 having in each rib four such groups for four such bearings.
  • Each rib is also provided with a cut-away portion indicated at 7 to accommodate the working rolls and first and second intermediate backing rolls.
  • the cradles, being held apart at their corners, are configured to have surfaces 8 which will be separated when the cradles are in assembly, to provide throats for entrance and exit of the strip.
  • the cartridge 6 will house the working rolls, the intermediate backing rolls, the backing bearings, the casters, lubricant jets and screwdown and crown adjustment means. While the cartridge 6 may be removed from the housing 1 in any suitable manner, FIGURE 3 illustrates convenient means for such removal. Adjacent the bore 3, the mill is provided with a short bridge 22. The end of the bridge 22 which extends away from the bore 3 leads to an adjacent cradle carriage 23 which rides on rails indicated at 23'.
  • a hydraulic or mechanical moving means such as a straight line actuator or' its equivalent (indicated generally at 21) may be used to shove the cartridge 6 out of the bore 3, across the bridge 22, and onto the cradle carriage 23 by which the cartridge may be transported to the maintenance shop for necessary overhaul or repair.
  • the same or different cartridge may be brought into position by means of the cradle carriage and immediately inserted into the bore 3 by means of the same straight line actuator 21.
  • FIGURES 2 and 7 illustrate the cradle 2 as being provided with screw jacks 50 at each of its corners.
  • pins 51 are provided at diagonally opposite corners of one of the cradles and cooperating perforations in the other cradle to assure proper alignment of the cradles with respect to each other. Prior to removal of the cartridge from the housing, the jacks 50 are released.
  • Means may also be provided for raising the cradle 2' to disengage it from the bore 3 once the cradle 2 has been lowered.
  • the cradle 2 is provided with longitudinal channels or slots 60 of T-shaped cross-section.
  • a bar 53 is located within the channel 68.
  • the bar is provided with a plurality of recesses 54- extending along its entire length.
  • Springs or spring discs 55 are located within the recesses E4 and are held in place by means of screws 57 and nuts 56.
  • two such lifting means are provided on the cradle 2', one to the right and one to the left of the center of the outside periphery of the cradle.
  • the bar 53 in each of the lifting means is depressed so as to lie wholly within the slot 60, the nuts 56 in each of the lifting means being depressed into the recesses 54, so that there is a clearance between the face 58 of the bar 53 and the surfaces 59 of the slot 6%).
  • the lifting means are free to raise the cradle 2, and the cartridge may be removed as described above.
  • the bore 3 as well as the cartridge 6 are made with a slight longitudinal taper, for example between 25:1 and 50:1.
  • the housing may be provided with suitable openings 15 for the injection of oil under high pressure into the interface between the bore and the cartridge. This tends momentarily to separate the two surfaces and to create a thin film of oil therebetween. Static friction is reduced, and the linear actuator 21 can easily and safely push the cartridge out of the housing and onto the carriage 23.
  • the cartridge can be made in one piece, or in a plurality of pieces but without the jacks 59. This is true because the taper is so calibrated that the cartridge will fit the bore snugly when pulled into place by the actuator 21, while the friction is reduced by the above mentioned oil injection. It has been found that even when a cobble has occurred which has expanded a single piece cartridge or separated a two piece cartridge, the rigid housing may suffer some elastic distortion of a magnitude of a few thousandths of an inch.
  • FIGS. 4 and 5 the cartridge of the present invention is provided with upper and lower drawer-type slides 24 and 24', hereinafter referred to as drawers.
  • FIGURE 5 shows a perspective view of the lower drawer 24'.
  • the drawer comprises an open frame-like structure with two elongated portions 24a and 24b and end portions 25a and 2519.
  • the drawer 24' is slidably mounted in the lower cradle 2 with the outer edges of the portions 24a and 24b of the drawer supported by notches 5a in the ribs 5 of the cradle.
  • mill saddles are excellent for transmission of roll pressure from the caster shafts to the housing but, again owing to obvious space limitations are not capable of supporting any load applied to the top of the thin ring of the saddle, such as is frequently present if an accordion is formed. Consequently, damage by a cobble includes usually deformed bridge guides and coolant jets and sometimes even saddle rings.
  • the end portions 25!) of drawers 24 and 24' are provided with outwardly extending threaded members 26 and 26'.
  • the threaded member 26' is engaged by an internally threaded sleeve 27 which in turn is rotatably mounted in a framework 27a mounted on the cartridge 6.
  • the internally threaded member 27' is provided with a crank 28' by which it may be turned.
  • This structure enables the mill operator to control the axial position of the intermediate support rolls 10', even during the operation of the mill, by .axial movement of the drawer 24.
  • the upper drawer 24 is similarly slidably mounted in the upper cradle 2 and serves as thrust bearing means for the upper pair of first intermediate rolls 10.
  • the upper drawer is provided with a threaded member 26 engaged by an internally threaded sleeve 27 which in turn is provided with a crank means 28.
  • the upper intermediate rolls of the first series may be separately controlled as to their axial position.
  • Such control of the axial positions .of the intermediate support rolls is necessary to obtain accurate control over the shape of the strip and especially the edge portions thereof, by aligning the strip edge with certain tapers or reliefs provided on the said intermediate rolls as described in the above mentioned copending application or in US. Patent 2,778,586.
  • the portions 24a and 24b of the drawer 24' are provided with longitudindal bores 29' which serve as ducts for coolant fluid jet nozzles 13 (see FIGURE 4) located in holes 30. These nozzles are directed chiefly against the surface of the work roll 9 so as to abstract heat therefrom as Well as from the strip passing above it.
  • the upper drawer 24 is provided with similar coolant fluid ducts and nozzles 13,
  • the cartridge structure of the present application has obviated the need for a door or end plate on the side of the mill which is faced by the operator. Instead, a bracket-like bridge element 16 forming an integral or removable part of the cartridge is used.
  • a tubular element 33 is fitted to a central bore in the bridge 16 and carries thethrust bearing 32 for the work rolls 9 and 9'.
  • the thrust bearing 34 at the opposite end of the work rolls 9 and 9' is carried at the end of a plunger 35 actuated by a hydraulic cylinder or the equivalent (not shown) and slidably mounted in a centrally located bore in a fixed back plate 36.
  • the more or less open construction of the mill of the present application has a further important advantage.
  • Modern mills of this type are capable of reductions in the order of 50% even on highly work-hardening metal strips of, for example, .040 inch by 50 inch section, and speeds in excess of 3000 f.p.m.
  • Such a mill calls for a fiow of coolant liquid at from 500 to 1000 g.p.m.
  • the mill of the present application with its open sides makes such flow possible.
  • the lower cradle 2' is provided at its lowermost point with a plurality of coaxial perforations 38 in each of the cross ribs 5. Due to the taper of the cradle, the liquid collected therein will have a tendency to run from right to left as seen in FIGURE 3. A suction connection generally indicated at 39 may be provided in order to further accelerate evacuation of the spent coolant liquid.
  • screwdown means In a mill of this type it is necessary to provide means for regulating the distance between the work rolls 9 and 9', and the pressure with which they bear upon the work piece.
  • Such control means are usually referred to as screwdown means.
  • the screwdown means used on the mill of the present invention is similar to that disclosed in the patents to the same inventor set forth above. That is to say, screwdown is effected by rotating, i.e., changing the angular position of, one or more of the caster carrying shafts, which have eccentric portions.
  • the two upper shafts are so rotated, and, in order to increase the accuracy of the control and minimize torsional deflection on wider mills, rotating means are provided at both ends of such shafts.
  • the work rolls 9 and 9 are backed by first series intermediate backing rolls It] and 10' which, in turn are backed by second series intermediate backing rolls 11 and 11.
  • the second series intermediate backing rolls are themselves backed by a plurality of casters 12 and 12' mounted on shafts indicated at 82 and 82' (FIGURES 4 and elsewhere).
  • the number of caster carrying shafts is ,not limiting.
  • the exemplary cradle illustrated in FIGURE 1 has provision for four such shafts, and FIGURE 2 illustrates four such shafts 82 in the upper cradle and four similar shafts 82 in the lower cradle.
  • the caster shafts are supported at intervals throughout their length by the cradle ribs 5, with the casters themselves located between the ribs.
  • a preferred form of actuating mechanism is a hydraulic rotary actuator, one of which is mounted and keyed on each end of the upper two caster shafts.
  • a hydraulic rotary actuator one of which is mounted and keyed on each end of the upper two caster shafts.
  • One type of such actuator is known under the trade name of Rotac made by the Ex-Cell-O Corporation, of Detroit andes sentially consists of an oil tight housing with a shaft in the center and a fixed vane with a sliding seal against said shaft. Another vane is attached to the shaft and is slidably sealed against the two inner faces and the outer periphery of said housing. An admission of hydraulic fluid under pressure on one side of the fixed vane,
  • This arrangement allows lateral displacement of the housing members 17 with respect to each other due to the eccentricity of the caster carrying shafts, but will not permit the housings to rotate about their respective shafts.
  • the use of hydraulic actuating means has the further advantage of assuring a symmetrical rotation of both eccentric shafts. This is accomplished by control of the flow of hydraulic fluid, as for example, by the use of Well known flow-splitting valves.
  • the screwdown mechanism is self-contained with the cartridge, and requires only connection to and disconnection from a source of hydraulic pressure and pressure control means when cartridges are changed.
  • the mill of the present invention is also provided with means for controlling the crown, contour or flatness of the work piece.
  • Such control means are shown in FIG- URES 9 and 10. This adjustment also is accomplished by means operating on the shafts 82. While such contour control means may be provided on any one or all of such shafts, in the preferred embodiment the upper two shafts in the upper cradle are provided with such means.
  • the caster bearing shafts 82 are keyed to eccentrics 81 by which screwdown is attained as described above.
  • Eccentric rings 70 are located in the proper bores 7 in the ribs of the cradles. The eccentric rings 70 are free to rotate within the bores 7.
  • Each eccentric ring 70 is provided with a gear segment 71 riveted thereto, one on either side of the ring.
  • the gear segments 71 mesh with a double rack 72 which may form an integral part of a screw 73.
  • the screw 73 is engaged by a nut 74 which is rotatably mounted in the peripheral portion of the upper cradle, but is held against axial movement.
  • the nut 74 carries about its periphery gear teeth 75.
  • a horizontally mounted worm 77 engages the teeth 75.
  • the worm 77 is rotatably mounted on a shaft 76.
  • the shaft 76 runs across the width of the mill and carries a plurality of worms 77 thereon to actuate the crown control mechanisms located at each rib.
  • the shaft 76 may be turned in either direction by motor means (not shown but mounted on the cartridge) in control of the mill operator.
  • a magnetic clutch, or equivalent, generally indicated at 78 is keyed to the shaft 76 whereby worm 77 may be engaged to rotate with the shaft. Rotation of the worms 77 will cause movement of the teeth 75, which in turn through .the nut 74 will actuate the screw 73 and the double rack 72. In this way, the ececntric rings 70 will be rotated thereby changing the relative heights of the bearing supports for the shaft 82. In this way, the crown of the work piece may be controlled to insure the desired flatness, irrespective of the screwdown.
  • FIGURES 1 through 4 show an embodiment with working rolls, backing rolls and casters in what is known as a l234 cluster. That is, each working roll is backed by two first series intermediate rolls, which in turn are backed by three second series intermediate rolls, which, are in turn backed by four rows of casters I2 and 12 It will be understood by one skilled in the art, that cartridges with various roll arrangements, such as 1-2, 123 and l2-34, or others may be used. It is one of the advantages of the mill of the present application that one and the same mill may be converted from one roll arrangement to another by simply inserting cartridges of diiferent design, which conversion may be accomplished in a matter of minutes.
  • FIGURES 7 and 8 illustrated the mill of the present invention with a twohigh cartridge, i.e., a cartridge containing two plain rolls with their chocks.
  • a twohigh cartridge i.e., a cartridge containing two plain rolls with their chocks.
  • the interchangeability of cartridges is of far reaching significance.
  • the mill of this invention is particularly suitable for either skin-pass rolling or polishing of strip or sheet steels in wide widths. Such steels are often rolled in relatively small production units designed for a modest production, often sufficient to operate the mill only one shift a day. However, in such production, it is necessary to have either a twohigh skin-pass or polishing finishing mill in order to give the material the surface texture required after a final annealing and pickling operation.
  • a cartridge is provided consisting of an upper cradle 61 and a lower cradle 61.
  • Each cradle consists of two longitudinal box section beams connected by necks and 90 respectively to form one continuous body, and further reinforced by bolted ties 62 and 62.
  • the upper and lower cradles house work roll chocks 63 and 63 and standard rolls 64 and 64' respectively.
  • a rolling mill structure having a transverse cylindrical bore and front and rear openings for the entrance and exit of a strip to be rolled, and a cartridge located within said bore, said cartridge being made up of at least two parts with semi-cylindrical outer surfaces, and containing rolls and pressure bearing elements therefor, said cartridge being insertable and withdrawable from said bore as a unit, a linearly acting power means connected with said cartridge for moving it within said bore, means for forcing the said parts of said cartridge away from each other so as to lock said cartridge in said bore, and means effective within said cartridge and independent of said forcing means for varying the screwdown of said mill.
  • said cartridge has a body characterized by a plurality of spaced transverse ribs, wherein said ribs have a plurality of axially aligned perforations therein, shafts extending through and mounted in said perforations, casters located on said shafts and lying between said ribs, said rolls comprising a pair of working rolls, and at least one set of intermediate rolls located between said working rolls and said casters.
  • a housing having a transverse bore and front and rear opening for the entrance and exit of a strip to be rolled, and a cartridge located within said bore, and containing rolls and pressure bearing elements therefor, said cartridge being insertable and withdrawable from said bore as a unit, a linearly acting power means connected with said cartridge for moving it within said bore, saidcartridge having a body characterized by a plurality of spaced transverse ribs, said ribs having a plurality of axially aligned perforations therein, shafts extending through and mounted in said perforations, casters located on said shafts and lying between said ribs, said rolls comprising a pair of working rolls, and at least two sets of intermediate rolls located between said working rolls and said casters and forming a first and second series of intermediate rolls, drawer means mounted for transverse sliding movement on said ribs, said drawer means having end portions, the intermediate rolls of the first series being located within said drawer means and having thrust bearings against said ends, and means on said cartridge.
  • the last mentioned means comprises a bracket having screw means for adjusting the positions of said drawers, a portion at least of said bracket means being movable and adapted to form a thrust bearing for one end of said working rolls, and means for providing a thrust bearing for the other end of said working rolls, said last mentioned means being a power means capable of moving said working rolls in the direction of their axes for removal thereof.
  • each shaft comprise gear teeth on said collars, a rack engaging said gear teeth and having a screw threaded portion, nuts engaging the screw threaded portions of the racks and a common shaft means mounted in said cartridge and having driving connections with said nuts, there being with respect to each g 10 such driving connection a magnetic clutch electrically operable from a position outside said cartridge.
  • a housing having a transverse bore and front and rear openings for the entrance and exit of a strip to be rolled, and a cartridge located within said bore and containing rolls and pressure bearing elements therefor, said cartridge being insertable and withdrawable from said bore as a unit, and a linearly acting power means connected with said cartridge for moving it within said bore, and wherein said cartridge contains bearings for the necks of the rolls of a 2-high mill, said bearings being movable toward and away from each other within the confines of said cartridge by means mounted on said housing and automatically engageable and disengageable with a pair of said roll bearings upon insertion and removal of said cartridge.
  • a housing having a transverse bore and front and rear openings for the entrance and exit of a strip to be rolled, and a cartridge located within said bore and containing rolls and pressure bearing elements therefor, said cartridge being insertable and withdrawable from said bore as a unit, and a linearly acting power means connected with said cartridge for moving it within said bore, and in which the body of said cartridge is formed of two parts having means at both ends for aligning the parts with respect to each other, and means also at both ends for urging the parts away from each other.
  • a housing having a transverse cylindrical bore and front and rear openings for the entrance and exit of a strip to be rolled, and a cartridge located within said bore, said cartridge being made up of at least two parts with semi-cylindrical outer surfaces, means for forcing the said parts of said cartridge away from each other so as to lock said cartridge in said bore, and containing rolls and pressure bearing elements therefor, said cartridge being insertable and withdrawable from said bore as a unit, and a linearly acting power means connected with said cartridge for moving it within said bore, and wherein said housing is provided with passageways intersecting said bore, whereby lubricant can be forced into the space between the outer surface of said cartridge and the inner surface of said bore.
  • a cartridge element for a mill of the class described comprising opposed body parts, means at the ends of said body parts for maintaining axial alignment thereof, means at the ends of said body parts for urging said parts away from each other, said body parts each comprising an outer shell and a plurality of ribs in spaced relationship, said ribs having axially aligned bores, shafts having bearings in said bores, caster members mounted on said shafts in spaced relationship and lying between said ribs, a pair of Working rolls, and at least one series of intermediate rolls lying between said working rolls and said casters.
  • aroll mill structure a housing having a transverse bore and front and rear openings for the entrance and'exit of a strip to be rolled, and a cartridge located within said bore and containing rolls and pressure hearing elements therefor, said cartridge being insertable and withdrawable from said bore as a unit, and a linearly acting'power means connected with said cartridge, for moving it within said bore, the outer surface of the said cartridge and the surface of said bore having corresponding tapers.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Rolling Contact Bearings (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
US205372A 1962-06-26 1962-06-26 Strip mill with roll cartridge Expired - Lifetime US3147648A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BE634026D BE634026A (el) 1962-06-26
US205372A US3147648A (en) 1962-06-26 1962-06-26 Strip mill with roll cartridge
GB22128/63D GB989047A (en) 1962-06-26 1963-06-04 Improvements in and relating to rolling mills for strip material
FR937029A FR1364840A (fr) 1962-06-26 1963-06-05 Laminoir à bandes
AT493863A AT269792B (de) 1962-06-26 1963-06-20 Walzwerk für bandförmiges Material
DE19631427998 DE1427998A1 (de) 1962-06-26 1963-06-21 Walzwerk fuer bandfoermiges Material
BR150140/63A BR6350140D0 (pt) 1962-06-26 1963-06-25 Laminadora para material em forma de tira

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US205372A US3147648A (en) 1962-06-26 1962-06-26 Strip mill with roll cartridge

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US3147648A true US3147648A (en) 1964-09-08

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US205372A Expired - Lifetime US3147648A (en) 1962-06-26 1962-06-26 Strip mill with roll cartridge

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US (1) US3147648A (el)
AT (1) AT269792B (el)
BE (1) BE634026A (el)
BR (1) BR6350140D0 (el)
DE (1) DE1427998A1 (el)
GB (1) GB989047A (el)

Cited By (20)

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Publication number Priority date Publication date Assignee Title
US3373590A (en) * 1964-06-23 1968-03-19 Schloemann Ag Multi-roll stands for the cold-rolling of thin, hard strips
US3394577A (en) * 1965-05-19 1968-07-30 Textron Inc Rolling mill
US3657913A (en) * 1968-09-30 1972-04-25 United Eng Foundry Co Crown control
US3709019A (en) * 1970-02-03 1973-01-09 Sendzimir Inc T Beam backed cluster mill
US3718026A (en) * 1969-06-07 1973-02-27 Inst Melaturgue Zelaza Cluster mill with cantilevered rolls
US3858424A (en) * 1972-01-28 1975-01-07 Hitachi Ltd Split type multistage rolling mill
US4064728A (en) * 1977-03-21 1977-12-27 Leonid Vasilievich Dobrovolsky Device for selecting sets of rolls for twenty-high rolling mill
EP0094104A2 (en) * 1979-10-04 1983-11-16 Hitachi, Ltd. Rolling mill and method for rolling a sheet material
EP0230333A2 (en) * 1986-01-21 1987-07-29 POMINI FARREL S.p.A. Closed mixer having parallel rotors, whose axial separation is adjustable
EP0476905A2 (en) * 1990-09-19 1992-03-25 Hitachi, Ltd. Shape control in a strip rolling mill of cluster type
US5133205A (en) * 1990-11-13 1992-07-28 Mannesmann Aktiengesellschaft System and process for forming thin flat hot rolled steel strip
US5179851A (en) * 1990-12-14 1993-01-19 T. Sendzimir, Inc. Crown adjustment control system for cluster mills
EP0529771A1 (en) * 1991-08-23 1993-03-03 T. Sendzimir, Inc. Cluster mill with crown adjustment system
US5558017A (en) * 1994-02-28 1996-09-24 Sundwiger Eisenhutte Maschinenfabrik Gmbh & Co. Roll stand
US6826941B2 (en) 2000-12-29 2004-12-07 Ronald L. Plesh, Sr. Roller apparatus with improved height adjustability
WO2005075120A1 (fr) * 2004-01-20 2005-08-18 Hongzhuan Zheng Dispositif de changement de rouleau pour malaxeur a cylindres multiples
US6959578B2 (en) * 2001-10-12 2005-11-01 Hitachi, Ltd. Multi-row rolling mills, methods of operating these mills, and rolling equipment using the mills
CN101791632A (zh) * 2009-12-03 2010-08-04 王胜翔 双向曲面旋转式二十辊轧机板形调整装置的设计方法
WO2012103961A1 (fr) 2011-02-02 2012-08-09 Siemens Vai Metals Technologies Sas Installation et methode de laminage a froid d'une bande metallique
EP3217925A4 (en) * 2014-11-14 2018-08-08 Warsaw Orthopedic, Inc. Bone graft materials, devices and methods of use

Families Citing this family (7)

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Publication number Priority date Publication date Assignee Title
GB1351074A (en) * 1971-02-15 1974-04-24 Hitachi Ltd Rolling mills
US3943742A (en) * 1973-08-24 1976-03-16 Hitachi, Ltd. Rolling mill
DE2835514C2 (de) * 1978-08-12 1982-12-02 Sundwiger Eisenhütte Maschinenfabrik Grah & Co, 5870 Hemer Vorrichtung zum axialen Verschieben von konischen Zwischenwalzen in einem Mehrrollen-Walzgerüst
EP0580291A1 (en) * 1992-07-20 1994-01-26 T. Sendzimir, Inc. Profile adjustment for cluster mills
US5421184A (en) * 1992-07-20 1995-06-06 T. Sendzimir, Inc. Additional profile control for cluster mills
DE4402398A1 (de) * 1994-01-27 1995-08-10 Froehling Josef Gmbh Vielwalzengerüst in Ständerbauweise vorzugsweise mit direkter hydraulischer Anstellung
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Cited By (27)

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US3373590A (en) * 1964-06-23 1968-03-19 Schloemann Ag Multi-roll stands for the cold-rolling of thin, hard strips
US3394577A (en) * 1965-05-19 1968-07-30 Textron Inc Rolling mill
US3657913A (en) * 1968-09-30 1972-04-25 United Eng Foundry Co Crown control
US3718026A (en) * 1969-06-07 1973-02-27 Inst Melaturgue Zelaza Cluster mill with cantilevered rolls
US3709019A (en) * 1970-02-03 1973-01-09 Sendzimir Inc T Beam backed cluster mill
US3858424A (en) * 1972-01-28 1975-01-07 Hitachi Ltd Split type multistage rolling mill
US4064728A (en) * 1977-03-21 1977-12-27 Leonid Vasilievich Dobrovolsky Device for selecting sets of rolls for twenty-high rolling mill
DE2713344A1 (de) * 1977-03-21 1978-09-28 Metall Z Zaporoschstal Im Serg Einrichtung zur auswahl der walzensaetze fuer zwanzigwalzengerueste
EP0094104A2 (en) * 1979-10-04 1983-11-16 Hitachi, Ltd. Rolling mill and method for rolling a sheet material
EP0094104A3 (en) * 1979-10-04 1984-07-25 Hitachi, Ltd. Rolling mill and method for rolling a sheet material
EP0230333A2 (en) * 1986-01-21 1987-07-29 POMINI FARREL S.p.A. Closed mixer having parallel rotors, whose axial separation is adjustable
EP0230333A3 (en) * 1986-01-21 1989-05-31 Pomini Farrel S.P.A. Closed mixer having parallel rotors, whose axial separation is adjustable
EP0476905A2 (en) * 1990-09-19 1992-03-25 Hitachi, Ltd. Shape control in a strip rolling mill of cluster type
US5692407A (en) * 1990-09-19 1997-12-02 Hitachi, Ltd. Shape control in a strip rolling mill of cluster type
EP0476905A3 (en) * 1990-09-19 1993-03-03 Hitachi, Ltd. Shape control in a strip rolling mill of cluster type
US5133205A (en) * 1990-11-13 1992-07-28 Mannesmann Aktiengesellschaft System and process for forming thin flat hot rolled steel strip
US5179851A (en) * 1990-12-14 1993-01-19 T. Sendzimir, Inc. Crown adjustment control system for cluster mills
EP0529771A1 (en) * 1991-08-23 1993-03-03 T. Sendzimir, Inc. Cluster mill with crown adjustment system
US5193377A (en) * 1991-08-23 1993-03-16 T. Sendzimir, Inc. Crown adjustment systems on cluster mills
US5558017A (en) * 1994-02-28 1996-09-24 Sundwiger Eisenhutte Maschinenfabrik Gmbh & Co. Roll stand
US6826941B2 (en) 2000-12-29 2004-12-07 Ronald L. Plesh, Sr. Roller apparatus with improved height adjustability
US6959578B2 (en) * 2001-10-12 2005-11-01 Hitachi, Ltd. Multi-row rolling mills, methods of operating these mills, and rolling equipment using the mills
WO2005075120A1 (fr) * 2004-01-20 2005-08-18 Hongzhuan Zheng Dispositif de changement de rouleau pour malaxeur a cylindres multiples
CN101791632A (zh) * 2009-12-03 2010-08-04 王胜翔 双向曲面旋转式二十辊轧机板形调整装置的设计方法
CN101791632B (zh) * 2009-12-03 2012-02-15 王胜翔 双向曲面旋转式二十辊轧机板形调整装置的设计方法
WO2012103961A1 (fr) 2011-02-02 2012-08-09 Siemens Vai Metals Technologies Sas Installation et methode de laminage a froid d'une bande metallique
EP3217925A4 (en) * 2014-11-14 2018-08-08 Warsaw Orthopedic, Inc. Bone graft materials, devices and methods of use

Also Published As

Publication number Publication date
BE634026A (el)
BR6350140D0 (pt) 1973-05-15
GB989047A (en) 1965-04-14
AT269792B (de) 1969-04-10
DE1427998A1 (de) 1968-10-31

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