US1883338A - Continuous process and apparatus for rolling scrap rail and the like - Google Patents

Continuous process and apparatus for rolling scrap rail and the like Download PDF

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Publication number
US1883338A
US1883338A US475606A US47560630A US1883338A US 1883338 A US1883338 A US 1883338A US 475606 A US475606 A US 475606A US 47560630 A US47560630 A US 47560630A US 1883338 A US1883338 A US 1883338A
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United States
Prior art keywords
rolls
stock
rail
mill
sections
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Expired - Lifetime
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US475606A
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English (en)
Inventor
George W Connors
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Individual
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Individual
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Publication date
Priority to BE390589D priority Critical patent/BE390589A/xx
Application filed by Individual filed Critical Individual
Priority to US475606A priority patent/US1883338A/en
Priority to DEC46810D priority patent/DE593556C/de
Application granted granted Critical
Publication of US1883338A publication Critical patent/US1883338A/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
    • 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
    • B21B1/08—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 structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/085—Rail sections
    • B21B1/0855—Rerolling or processing worn or discarded rail sections

Definitions

  • My invention relates to rolling mills of the continuous type, wherein it is contemplated that stock being rolled will pass continuously from one to another of a series of stands of roughing, rough finishing and finishing rolls arranged in alignment and usually spaced so that each will receive the stock from the preceding roll stand in the series until the finishing rolls deliver the rolled stock to an annealing bed or other point of treatment, packaging or storage.
  • One object of my invention is to adapt such a continuous mill to the rolling of rods, bars, strips, and like merchant stock from scrap rails which, according to existing practice, are passed from the heating furnacethrough a slitter whichsubdivides the rail longitudinally into three separate elements, namely, the flange, the web and the head, which are rolled by hand in separate mills.
  • scrap rail, or other steel stock of irregular and varying sized cross section may be subdivided by a slitter and rolled in a continuous mill so as to effect great economies in cost of production and a large increase in output, and to this end my invention contemplates arranging the rolls of a continuous mill so as to receive simultaneously two or more differently shaped subdivided stock elements from the slitter and to pass same continuously through the mill, giving to each stock element the requisite number of passes in order to produce from it the contemplated finished product and to produce simultaneously from the
  • the slitter itself is adapted to form the initial pass in the continuous mill treatment and in receiving the hot rails or stock of different sizes from the heating furnace it can give same the first or initial reduction while subdividing it longitudinally, in the case of scrap rails, into the three elements to be rolled.
  • My invention further contemplates that all three elements or any less number thereof into which the rail, as the selected stock, is slit, maybe passed continuously through the rolls of the mill until finished. Where two or more rail elements are being continuously rolled, my invention contemplates simultaneously treating such elements by the same roughing and rough finishing rolls but so arranging and designing the finishing rolls that 1 each finishes only one size at a time of the finished product.
  • My invention contemplates utilizing the finishing rolls for one size of finished product 0 to rough finish for other sizes of finished product.
  • Another. important and distinctive feature of my invention lies in the flexibility in con troloffinished productwhich can be obtained by providing the rolls with a number of different sized and/or shaped passes, thus making it possible to divert different sectitmsof the rail from the slitter pass to the" desired pass in the succeeding rolls of the continuous mill, and permitting both the head, web, and flange to be rolled into like or different products.
  • My invention also contemplates either rollingthe web along with the head and flange of the rail through the continuous mill, or to divert the web to a hand mill and finish it there into any suitable product.
  • the head or' flange may be diverted and the remaining section or sections of the rail rolled in the continuous mill.
  • My invention further contemplates providing the rough finishing and the finishing rolls with idler grooves for permitting the free passage of any rail section or stock not at the time being reduced or formed by that respective roll, thus permitting each section to follow the selected line path from the slitter to the annealing or receiving bed.
  • My invention further contemplates the combination with the multiple pass roughing rolls, of a lurality of passes in the slitting rolls, there y permitting different sized rails to be slit and rolled Without changing the slitter rolls.
  • Fig. 1 is a plan view illustrating the initial 0I 11iO11ghiI1g section of a two pass continuous Fig. 2 represents a continuation of Fig. 1, showing the finishing section of the mill and a portion of the bed to receive the finished product.
  • Fig. 3 illustrates the scrap rail sections as delivered from the slitter and shows the utilization of the slitter to provide an initial forming and reducing pass.
  • Fig. 4 is a plan view of the mill with one layout of the multiple passes for the rolls which are shown arranged in series without regard to the normal spacing between roll stands and in which each roll is shown driven by an individual motor.
  • Fig. 5 is a cross-sectlonal view taken on the lineVV of Fig. 4.
  • Fig. 6 is a enlarged view of a modified arrangement of the multiple pass rolls showing by the arrows the different distribution of thialrail sections to theelifl'erent passes in the Fig. 7 is a view in continuation of Fig. 6,
  • Figs. 8 and 9 illustrate respectively plan and side views of the guides between the slitter and initial roughing rolls.
  • these rail sections 10 are, as shown in Fig. 1, brought to the proper heat in a heating furnace 11 and are moved opposite an opening 12 in the furnace through which they are adapted to be pushed by any suitable means, not
  • ed from the mill and by hand may be rolled in a separate mill to any form desired. It is to be understood, however, that the web may be rolled in the continuous mill if desired and Fig. 4 shows a mill designed to roll all three rail sections.
  • a two pass continuous mill is more or less diagrammatically illustrated in Figs. 1 and 2, only one roll of each stand being shown, all stands and drives being omitted as same may be of any standard construction and therefore form no essential part of my present invention.
  • I show four roughing rolls 17, 18, 19 and 20 and the guides for giving the stock the kneading twist between the rolls are also omitted.
  • the passes for the flange reduce it at each roll, but the head 14 is sufliciently roughed by the rolls 18 and 19 and so passes idly through the grooves 21in the rolls 19 and 20.
  • Fig. 2 shows the rough finishing rolls 22 and the finishing rolls 23 for the head 14 which is finished as round merchant rods 24 that pass idly through the grooves 21 in the rolls 25 and 26 which respectively rough finish the flange 16 into square bars 27.
  • the roughed bars 27 pass idly through the grooves 21 in the rolls 22 and 23. All the several finished rods and bars or strips are delivered to a suitable receiving bed 28 whichmay be adapted to anneal the same, if such be desired.
  • rolls 23 finish the rod 24 and do not act on bar 27, and that rolls 26 finish the bar 27 and do not act on the rod 24.
  • Fig. 4 I show a complete set of multiple 127 and an individual motor 128 for this stand.
  • FIGs. 6 and 7 I show enlarged views of a set of rolls 213, 217, 218, 219, 220, 222,
  • the rolls may have an individual or a multiple drive as the conditions at each plant may make desirable and the passes can be varied to handle the raw stock available and to produce any desired finished-or semi-finished stock.
  • I mean thereby to include any step or steps by which the rail can be sub-divided longitudinally into two or more component sections of different shape and/or size; and, when I refer to rolling the rail sections, such step contem; plates not only completely finishing the stock, ready for the market, but also any partial finishing of the stock, i. e. rough finishing it where it may be desired to finish it in any such way.
  • the man handlin rail or stock to the shtter and from theslitter the stock sections are directed by suitable guides so as automatically to enter the selected pass in the initial roughing roll stand,
  • any type of guide may be used but it should be such as to enable the sections of rails from either pass in the slitter to be crossed over and delivered to'any desired pass in the mill.
  • the head sections from the two slitter passes can be delivered to the adjacent passes at one end of the rolls or.
  • the flange or web from the slitter passes can be delivered to the passes for the round or square stock as may be desired.
  • Figs. 8 and 9 I show the slitter roll with only a single pass and the guides comprise the fixed'slitter delivery guides 226 and 227 for the head and flange, the web being, die verted by a guide not shown.
  • the herein described process fon continuously rolling rods, bars, strips and/or shapes from scrap rail and similar raw stock, which consists in slitting the stock, in the first pass, and rolling the stogk sections simultaneously in a continuous rolling mill having multipass rolls designed to convert same continuously into the desired finished stock.
  • the herein described process foncontinuously rolling rods, bars, strips and/or shapes from scrap rail and similar raw stock, which consists in slitting the stock, in the first pass, delivering the stock sections simultaneously to a continuous rolling mill having multipass rolls designed to convert same continuously into the desired finished stock. and finishing stock of diflerent sizes on different rolls oftinuous rolling mill, and rolling said sections therein simultaneously to produce a variety of different sized and/or shaped finished products.
  • a continuous rolling mill comprising a rail slitter, a sequence of multipass rolls, and
  • a continuous rolling mill comprising a rail slitter, multipass rolls, means to deliver 0 a plurality of the slit rail sections selectively into the desired passes of said mill, and blank passes on the finishing rolls of said mills adapted to finish only one size of stock on one finishing roll.
  • a multipass slitter adapted to subdivide diiierent sized stock of irregular cross section into component parts difierent in cross section, guides to direct component parts selectively to the desired 6 pass of a continuous rolling mechanism, and
  • continuous rolling mechanism adapted to simultaneously roll said component parts into a variety of finished products of different size and/or shape.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
US475606A 1930-08-15 1930-08-15 Continuous process and apparatus for rolling scrap rail and the like Expired - Lifetime US1883338A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE390589D BE390589A (xx) 1930-08-15
US475606A US1883338A (en) 1930-08-15 1930-08-15 Continuous process and apparatus for rolling scrap rail and the like
DEC46810D DE593556C (de) 1930-08-15 1932-08-21 Verfahren zum Herstellen von Stangen, Staeben, Profileisen u. dgl. aus Abfall- oder Altmaterial

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US475606A US1883338A (en) 1930-08-15 1930-08-15 Continuous process and apparatus for rolling scrap rail and the like

Publications (1)

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US1883338A true US1883338A (en) 1932-10-18

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US475606A Expired - Lifetime US1883338A (en) 1930-08-15 1930-08-15 Continuous process and apparatus for rolling scrap rail and the like

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US (1) US1883338A (xx)
BE (1) BE390589A (xx)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3308644A (en) * 1963-12-02 1967-03-14 Mannesmann Meer Ag Drive for tube reduction mills
US9067248B2 (en) 2011-09-28 2015-06-30 W. Silver Inc. No-slit hot rolling of railroad rails
US9168575B2 (en) 2011-09-28 2015-10-27 W. Silver Inc. No-slit hot rolling of railroad rails

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3308644A (en) * 1963-12-02 1967-03-14 Mannesmann Meer Ag Drive for tube reduction mills
US9067248B2 (en) 2011-09-28 2015-06-30 W. Silver Inc. No-slit hot rolling of railroad rails
US9168575B2 (en) 2011-09-28 2015-10-27 W. Silver Inc. No-slit hot rolling of railroad rails

Also Published As

Publication number Publication date
BE390589A (xx)

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