US3367162A - Apparatus for reducing slab width - Google Patents

Apparatus for reducing slab width Download PDF

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Publication number
US3367162A
US3367162A US446221A US44622165A US3367162A US 3367162 A US3367162 A US 3367162A US 446221 A US446221 A US 446221A US 44622165 A US44622165 A US 44622165A US 3367162 A US3367162 A US 3367162A
Authority
US
United States
Prior art keywords
slab
pair
rolls
housings
slide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US446221A
Other languages
English (en)
Inventor
Llewellyn S Kazebee
Frank A Purdy
Suter Walter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
United States Steel Corp
Original Assignee
United States Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by United States Steel Corp filed Critical United States Steel Corp
Priority to US446221A priority Critical patent/US3367162A/en
Priority to GB12620/66A priority patent/GB1135851A/en
Priority to DE19661527731 priority patent/DE1527731A1/de
Priority to BE679006D priority patent/BE679006A/xx
Priority to AT328766A priority patent/AT274718B/de
Priority to FR56609A priority patent/FR1473800A/fr
Priority to NL6604759A priority patent/NL6604759A/xx
Application granted granted Critical
Publication of US3367162A publication Critical patent/US3367162A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/06—Drives for metal-rolling mills, e.g. hydraulic drives for non-continuously-operating mills or for single stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/02—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
    • B21B1/04—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing in a continuous process
    • 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
    • B21B13/06—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged vertically, e.g. edgers
    • 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
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • B21B31/12—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by vertically displacing

Definitions

  • This invention relates to an improved edge-rolling mill for reducing the width of steel slabs or the like.
  • An object of the invention is to provide an improved edge-rolling mill which operates in conjunction with conventional horizontal roll stands to reduce the total section of a slab in one closely coupled operation without turning or stopping the slab.
  • a further object is to provide an improved edge-rolling mill particularly adapted for reducing the width of slabs formed by a continuous casting process, where it is desirable to reduce the slab width quite drastically with the slab under tension before it becomes too cool.
  • a more specific object is to provide an improved edgerolling mill which includes at least three sets of rolls journaled on vertical axes to reduce a slab width in steps and apply tension to the slab, and means for applying pressure to the rolls and controlling their spacing.
  • FIGURE 1 is an end elevational view partly in section of our edge-rolling mill taken from the entry end and with the front tension plate broken away;
  • FIGURE 2 is a longitudinal vertical section on line IIII of FIGURE 1;
  • FIGURE 3 is a horizontal section on line III-III of FIGURE 1;
  • FIGURE 4 is a vertical sectional view on a larger scale to show one of the tension slide assemblies
  • FIGURE 5 is a horizontal section on a larger scale on line V-V of FIGURE 1;
  • FIGURE 6 is a vertical section on line VIVI of FIGURE 5;
  • FIGURE 7 is a vertical section on line VII-VII of FIGURE 6;
  • FIGURE 8 is an end elevational view similar to FIG- URE 1, but including the front tension plate, and showing how we remove and install the rolls.
  • Our rolling mill includes a stationary base frame 10 fabricated of steel plates rigidly fixed to one another, as by Welding.
  • the plates at the top of the frame define an opposed pair of relatively wide transverse slideways 12 and an opposed pair of narrow slideways 13 (FIGURE 2).
  • the base frame 10 carries an opposed pair of slidably supported upstanding ram crossheads 16 and 16a at its outer ends (FIGURE 3).
  • Front and rear tension plates 17 and 17a extend across the entry and exit sides of the mill, spanning the two crossheads and the space therebetween.
  • the mid portions of the tension plates carry downwardly projecting keys 18 which are received in corresponding keyways in the base frame 10.
  • the ends of the tension plates have integral flanges 19 which extend around the edges of the crossheads and are bolted thereto.
  • the tension plates have windows 20 to allow slabs S to pass therethrough.
  • the base frame carries rests 26 at each side of the center line for slidably supporting the tension plates.
  • each lower tension slide assembly includes a tension bar 28 attached to the slide housing 15 and extending through a slot 29 in the wall of the slide housing 14. Two pairs of rollers 30 are journaled to the tension bar and ride on wear plates 31 fixed to the inner face of housing 14.
  • the attaching means for the tension bar includes a built-up rubber sandwich 32 which we compress after the parts are assembled to provide the desired pre-tension in the assembly.
  • the upper tension slide is similar (FIGURE 2).
  • the slide housing 14 contains two lower roll chocks 35 and 36 and two upper roll chocks 37 and 38 aligned with the respective lower chocks (FIGURE 2).
  • the slide housing 15 contains aligned lower and upper roll chocks 39 and 40.
  • the primary and intermediate rolls 41 and 42 are of the same diameter, but we insert shims 44 within the slide housing 14 behind chocks 36 and 38, whereby the circumference of the intermediate roll projects further inwardly (FIGURE 3).
  • the finishing roll 43 is of larger diameter and projects still farther inwardly.
  • Each roll has a respective flange 45 at its lower end and tapers slightly from its upper end to its flange. During a rolling operation the taper drives the slab S downwardly against the flange to position the slab and prevent vertical movement in either direction.
  • the upper end of the primary roll 41 has an integral splined extension 46 to which we connect the splined sleeve of a flexible drive spindle 47.
  • the upper end of housing 14 carries a speed reducer 48, the output shaft of which is mechanically coupled to the upper end of spindle 47.
  • a motor bracket 49 is carried on two upstanding slotted pins 50 mounted on the housing of the speed reducer and is held in position by suitable locking wedges and tie bolts (not shown). Bracket 49 carries drive motor 51 removably coupled to the input side of the speed reducer for driving the primary roll 41.
  • the finishing roll 43 has a splined extension 52 and drive spindle 53, and the slide housing carries a speed reducer 54, motor bracket 55 and motor 56 all arranged similarly to corresponding parts just described.
  • the intermediate roll 42 is an idler.
  • Each of the slide housings 14 and 15 carries a respective lubricant pump 57 and drive motor 58 therefor, which form part of a forced lubrication system for its speed reducer.
  • the housings of motors 51 and .56 carry blowers 59 and drive motors 60 therefor.
  • the parts carried by the other housings 14a and 150 are of similar construction to those carried by housings 14 and 15, although in some instances of opposite hand; hence we have not repeated the description.
  • FIGURE 3 shows, we mount two air-water atomizing spray nozzles 61 adjacent the rear of each roll 41, 42 and 43. We connect these nozzles to the plant water and compressed air supply lines through suitable piping and control and operating valves (not shown). We also mount roll wipers 62 behind the rolls to prevent the cooling spray from impinging on the slab and to wipe excess water from the rolls before they contact the slab.
  • the mill also has upper and lower slab guides between the opposed slide housings to restrain slabs S against unusual vertical movement.
  • the lower slab guide includes a supporting table 65 fixed to the base frame 10, pedestals 66 removably mounted on table 65, and a pair of rails 67 mounted on the pedestals (FIGURES 1 and 4).
  • the upper guide includes a pair of cross beams 68 and 69 supported on horizontal roll stands A and B at the entry and exit ends of our mill (FIGURES 5, 6 and 7).
  • the beams carry respective upstanding slotted pins 70 on which we removably mount a tie member 71. We insert wedges 72 in the slots in said pins to restrain the guide against upward movement.
  • the tie member has two pairs of spaced upstanding lugs 73 of inverted U-shape, a pair of vertical passages 74 beneath the spaces between lugs, and a depending portion 75 which fits between the beams 68 and 69.
  • the mounting means includes a screw 79, collars 80 and 81 fixed to the screw, and a nut 82 nonrotatably held between lugs 73 and threadedly receiving the screw.
  • the posts are suitably apertured to accommodate the screw and nut.
  • Our edge-rolling mill is situated between two horizontal roll stands A and B which can be of conventional construction.
  • the slab S enters from the roll stand A, and the three sets of edging rolls act on it in turn.
  • the slab goes to the roll stand B.
  • the horizontal roll stands A and B serve to tension the slab as it travels through our mill. During a rolling operation the tension plates 17 and 17a react the separating forces from the rams.
  • the slidable engagement of the ram crossheads 16 and 16a with the base frame 10 and of the tension plates with the rests 26 enables the tension plates to expand under the separating force loads and permits the resulting movement of tension plates and ram crossheads.
  • the keyed center connections 18 carry any differential loading between the rams resulting either from a ram failure or from slab misalignment.
  • the electric and hydraulic circuits used to operate our mill are equipped with controls for driving the rolls at proper speeds and positioning the rolls at the proper location with respect to the slab. We have not shown or described these controls, since they are designed according to known principles and are not of our invention.
  • An edge-rolling mill for slabs comprising a base frame, a first opposed pair of slide housings supported on said base frame for transverse sliding movement, a second opposed pair of slide housings supported on said base frame adjacent said first pair for transverse sliding movement independently thereof, a pair of primary rolls and a pair of intermediate rolls journaled on vertical axes in said first pair of slide housings, a pair of finishing rolls journaled on vertical axes in said second pair of slide housings, drive means mounted on said slide housings and operatively connected with said primary and finishing rolls, said intermediate rolls being idlers, and hydraulic means mounted on said base frame operatively connected with said slide housings for positioning said rolls.
  • a rolling mill as defined in claim 1 further comprising upper and lower slab guides mounted between the slide housings on opposite sides to prevent unusual vertical movement of a slab.
  • said hydraulic means includes ram crossheads slidably supported at opposite sides of said base frame, hydraulic rams mounted in said crossheads in alignment with the respective slide housings for pushing them toward each other, front and rear tension plates keyed to said base frame and connecting said crossheads to react the separating forces from said rams, and pull-back cylinders mounted within said base frame and connected with the respective slide housings for separating them, the slidable support of said crossheads permitting expansion of said tension plates under separating force loads.
  • a rolling mill as defined in claim 1 further comprising tension slide means mounted on one pair of slide housings and engaging the other pair of slide housings to stabilize the slide housings yet permit relative sliding movement therebetween.
  • said mill further comprises upper and lower slab guides mounted between the slide housings on opposite sides to prevent unusual vertical movement of a slab, said lower guide being supported on said base frame, said upper guide being supported on said stands.
  • tension plates are keyed at their midportions to said base frame, and including rests mounted on said base frame slidably supporting said tension plates.
  • a rolling mill as defined in claim 1 further comprising front and rear tension plates connected to said hydraulic means, said front plate extending across said first pair of housings, said rear plate extending across said second pair of housings, said plates reacting the separating forces from the hydraulic means as a slab passes between said rolls and having windows permitting slabs to enter and leave the mill.
  • said mill further comprises front and rear tension plates connected to said hydraulic means, said front plate extending across said first pair of housings, said rear plate extending across said second pair of housings, said plates reacting the separating forces from the hydraulic means as a slab passes between said rolls and having windows permitting sl-abs to enter and leave the mill.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
US446221A 1965-04-07 1965-04-07 Apparatus for reducing slab width Expired - Lifetime US3367162A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US446221A US3367162A (en) 1965-04-07 1965-04-07 Apparatus for reducing slab width
GB12620/66A GB1135851A (en) 1965-04-07 1966-03-22 Apparatus for reducing slab width
DE19661527731 DE1527731A1 (de) 1965-04-07 1966-03-31 Stauchgeruest zur Verringerung der Breite von Stahlbrammen od.dgl.
BE679006D BE679006A (enrdf_load_stackoverflow) 1965-04-07 1966-04-04
AT328766A AT274718B (de) 1965-04-07 1966-04-06 Kantenwalzwerk, insbesondere für Brammen
FR56609A FR1473800A (fr) 1965-04-07 1966-04-06 Laminoir servant à diminuer la largeur d'une brame
NL6604759A NL6604759A (enrdf_load_stackoverflow) 1965-04-07 1966-04-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US446221A US3367162A (en) 1965-04-07 1965-04-07 Apparatus for reducing slab width

Publications (1)

Publication Number Publication Date
US3367162A true US3367162A (en) 1968-02-06

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ID=23771764

Family Applications (1)

Application Number Title Priority Date Filing Date
US446221A Expired - Lifetime US3367162A (en) 1965-04-07 1965-04-07 Apparatus for reducing slab width

Country Status (6)

Country Link
US (1) US3367162A (enrdf_load_stackoverflow)
AT (1) AT274718B (enrdf_load_stackoverflow)
BE (1) BE679006A (enrdf_load_stackoverflow)
DE (1) DE1527731A1 (enrdf_load_stackoverflow)
GB (1) GB1135851A (enrdf_load_stackoverflow)
NL (1) NL6604759A (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3543555A (en) * 1967-05-16 1970-12-01 Demag Ag Form changing device for continuous casting
US3583196A (en) * 1968-03-20 1971-06-08 Us Steel Corp The Edge-rolling stand for steel slabs or the like
US3688548A (en) * 1969-06-03 1972-09-05 Mitsubishi Aluminium Apparatus for the manufacture of aluminum strip conductors
FR2124437A1 (enrdf_load_stackoverflow) * 1971-02-03 1972-09-22 Krupp Ag Huettenwerke
US3757556A (en) * 1971-03-17 1973-09-11 Nippon Kokan Kk Method of roughing slab to predetermined width and apparatus thereof
EP0035302B1 (en) * 1980-02-28 1984-02-01 Hoogovens Groep B.V. A process for reducing the width of a flat metal product by rolling
US5113678A (en) * 1987-10-09 1992-05-19 Hitachi, Ltd. Method for controlling plate material hot rolling equipment
CN107377262A (zh) * 2017-08-08 2017-11-24 青岛涂汇特机电科技有限公司 一种双料缸组合式喷涂机马达

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT387531B (de) * 1983-04-26 1989-02-10 Gfm Fertigungstechnik Walzanlage zum walzen insbesondere von flachstahl
GB2516043A (en) 2013-07-09 2015-01-14 Siemens Vai Metals Tech Gmbh A rolling mill edger

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2213714A (en) * 1933-08-21 1940-09-03 Morgan Construction Co Rolling mill
US2603990A (en) * 1945-06-06 1952-07-22 Morgan Construction Co Vertical rolling mills
US2635493A (en) * 1948-08-28 1953-04-21 Richard M Schumacher Metalworking
US3160037A (en) * 1956-08-22 1964-12-08 Russell Robert Gordon Rolling mills
US3194045A (en) * 1960-10-10 1965-07-13 Morgan Construction Co Rolling mill

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2213714A (en) * 1933-08-21 1940-09-03 Morgan Construction Co Rolling mill
US2603990A (en) * 1945-06-06 1952-07-22 Morgan Construction Co Vertical rolling mills
US2635493A (en) * 1948-08-28 1953-04-21 Richard M Schumacher Metalworking
US3160037A (en) * 1956-08-22 1964-12-08 Russell Robert Gordon Rolling mills
US3194045A (en) * 1960-10-10 1965-07-13 Morgan Construction Co Rolling mill

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3543555A (en) * 1967-05-16 1970-12-01 Demag Ag Form changing device for continuous casting
US3583196A (en) * 1968-03-20 1971-06-08 Us Steel Corp The Edge-rolling stand for steel slabs or the like
US3688548A (en) * 1969-06-03 1972-09-05 Mitsubishi Aluminium Apparatus for the manufacture of aluminum strip conductors
FR2124437A1 (enrdf_load_stackoverflow) * 1971-02-03 1972-09-22 Krupp Ag Huettenwerke
US3757556A (en) * 1971-03-17 1973-09-11 Nippon Kokan Kk Method of roughing slab to predetermined width and apparatus thereof
EP0035302B1 (en) * 1980-02-28 1984-02-01 Hoogovens Groep B.V. A process for reducing the width of a flat metal product by rolling
US5113678A (en) * 1987-10-09 1992-05-19 Hitachi, Ltd. Method for controlling plate material hot rolling equipment
CN107377262A (zh) * 2017-08-08 2017-11-24 青岛涂汇特机电科技有限公司 一种双料缸组合式喷涂机马达
CN107377262B (zh) * 2017-08-08 2019-04-30 青岛涂汇特机电科技有限公司 一种双料缸组合式喷涂机马达

Also Published As

Publication number Publication date
BE679006A (enrdf_load_stackoverflow) 1966-10-04
AT274718B (de) 1969-09-25
DE1527731A1 (de) 1970-02-19
NL6604759A (enrdf_load_stackoverflow) 1966-10-10
GB1135851A (en) 1968-12-04

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