FR2540755A1 - PROCESS FOR EXTENDING, BY ROLLING, A METALLURGICAL MEPLATE PRODUCT - Google Patents

PROCESS FOR EXTENDING, BY ROLLING, A METALLURGICAL MEPLATE PRODUCT Download PDF

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Publication number
FR2540755A1
FR2540755A1 FR8302886A FR8302886A FR2540755A1 FR 2540755 A1 FR2540755 A1 FR 2540755A1 FR 8302886 A FR8302886 A FR 8302886A FR 8302886 A FR8302886 A FR 8302886A FR 2540755 A1 FR2540755 A1 FR 2540755A1
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FR
France
Prior art keywords
product
metallurgical
relative
incidence
rolling
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.)
Pending
Application number
FR8302886A
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French (fr)
Inventor
Francois Regis Boutin
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.)
Rio Tinto France SAS
Original Assignee
Aluminium Pechiney SA
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 Aluminium Pechiney SA filed Critical Aluminium Pechiney SA
Priority to FR8302886A priority Critical patent/FR2540755A1/en
Priority to JP2151984A priority patent/JPS59153502A/en
Priority to DE19843405076 priority patent/DE3405076A1/en
Priority to GB08403888A priority patent/GB2135224A/en
Publication of FR2540755A1 publication Critical patent/FR2540755A1/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B39/00Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/14Guiding, positioning or aligning work
    • B21B39/16Guiding, positioning or aligning work immediately before entering or after leaving the pass
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-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
    • B21B1/02Metal-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
    • B21B1/026Rolling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B13/00Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/18Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories for step-by-step or planetary rolling; pendulum mills

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)

Abstract

L'INVENTION CONCERNE UNE METHODE D'ELARGISSEMENT PAR LAMINAGE D'UN PRODUIT MEPLAT CONSISTANT A L'INTRODUIRE SOUS UN ANGLE D'INCIDENCE TH0 DANS UN LAMINOIR DE TYPE PLANETAIRE, AVEC UN CORROYAGE TEL QU'UN SEUL DES CYLINDRIQUES DE TRAVAIL SITUES D'UN MEME COTE DU PRODUIT, SOIT EN CONTACT AVEC CELUI-CI. LA FIGURE 1 DONNE SOUS FORME PARAMETRIQUE LA RELATION ENTRE LE CORROYAGE ET L'ELARGISSEMENT EN FONCTION DE L'ANGLE D'INCIDENCE TH EN DEGRE.THE INVENTION CONCERNS A METHOD OF ENLARGEMENT BY LAMINATION OF A FLAT PRODUCT CONSISTING OF INTRODUCING IT UNDER AN ANGLE OF INCIDENCE TH0 IN A LAMINATOR OF PLANET TYPE, WITH A CORROWAGE SUCH AS A SINGLE OF THE WORKING CYLINDRICS LOCATED FROM ' THE SAME SIZE OF THE PRODUCT, EITHER IN CONTACT WITH IT. FIGURE 1 GIVES IN PARAMETRIC FORM THE RELATIONSHIP BETWEEN CORROYMENT AND ENLARGEMENT AS A FUNCTION OF THE ANGLE OF INCIDENCE TH IN DEGREE.

Description

-1-* PROCEDE POU Rt ELARGIR, PAR LAMINAGE, UN PRODUIT MEPLAT-1- * METHOD FOR EXLARGING, BY ROLLING, A MEPLAT PRODUCT

METALLURGIQUEMETALLURGICAL

La méthode est relative à l'élargissement d'un produit métallurgique  The method relates to the enlargement of a metallurgical product

méplat à l'aide d'un laminoir du type planétaire ou pendulaire.  flat by means of a rolling mill of the planetary or pendular type.

Dans la production des produits plats métallurgiques,-on part généra-  In the production of metallurgical flat products, in general,

lement d'une ébauche coulée ou transformée à chaud, de section transversale rectangulaire, appelée "méplat", "brame", "plaque" ou "plateau". Cependant, ces produits ont un nombre limité de largeurs discrètes  It is a cast or hot-formed blank of rectangular cross-section called "flat", "slab", "plate" or "plate". However, these products have a limited number of discrete widths

alors que les produits finis obtenus de façon unitaire ou par refen-  whereas finished products obtained on a unitary basis or by

dage, peuvent présenter un très grand nombre de largeurs finales.  can have a very large number of final widths.

Il est donc nécessaire d'adapter la largeur d'une ébauche donnée à la largeur (ou un multiple de 1 a largeur), ou la somme des largeurs  It is therefore necessary to adapt the width of a given blank to the width (or a multiple of 1 to width), or the sum of the widths

des produits finis désirés, dans une même épaisseur.  desired finished products, in the same thickness.

Or, on sait que lorsqu'on lamine un produit plat en biais par rapport  However, it is known that when a flat product is slanted at an angle to

à l'axe des cylindres il s'élargit mais, en même temps, il se dé-  at the axis of the cylinders it widens, but at the same time

place latéralement; l'opération ne peut donc être réalisée que sur  place laterally; the operation can only be carried out on

des produits de faible longueur.products of short length.

Le proc&=ié selon l'invention permet cet élargissement sur des pro-  The method according to the invention allows this enlargement on

duits de grande longueur et/ou en continu Il consiste à introduire sous une incidence OU O ', un produit plat dans un laminoir de type planétaire avec un corroyage tel qu'un seul des cylindres de travail situés d'un même côté du produit soit en contact avec celui-ci Dans ce cas, le déplacement latéral du produit pendant le corroyage est  long and / or continuous feeds It consists in introducing, under an ORO 'incidence, a flat product into a planetary type mill with a processing such that only one of the working cylinders situated on one and the same side of the product is In this case, the lateral displacement of the product during the wrought

annulé par réalignement du produit, hors d'emprise, entre deux cy-  canceled by realigning the product, out of reach, between two cy-

lindres successifs.successive lindres.

Si R est le rayon de giration des N cylindres de travail, H O l'épais-  If R is the radius of gyration of the N working rolls, H O is the thickness

seur initiale du produit, f Bl'angle d'incidence par rapport à la nor-  product, the angle of incidence with respect to the standard

male (N) aux cylindres, la diminution d'épaisseur AH doit être -2inférieure: AH = 2 R( 1 cos 2 N La valeur de l'élargissement obtenu pour divers corroyages et divers angles d'incidence a été déterminée expérimentalement par des essais  Male (N) to the cylinders, the decrease in thickness AH must be -2 lower: AH = 2 R (1 cos 2 N The value of the enlargement obtained for various corroyings and various angles of incidence has been determined experimentally by tests

de simulation Les courbes interpolées entre les points expérimen-  The interpolated curves between experimental points

taux sont reportés sur la figure I; celle-ci donne une valeur appro-  rates are shown in Figure I; this gives an approximate value

chee de la valeur de l'angle d'incidence l'pour un élargissement-Aà  chee of the value of the angle of incidence the for a widening-Aà

déterminé en fonction du corroyage imposé (àH/H 0), AH étant la réduc-  determined according to the forced working (at H / H 0), where AH is the reduction

tion d'épaisseur du produit.thickness of the product.

L'angle d'émergence du produit Q' par rapport à la nomale aux cy-  The angle of emergence of the product Q 'with respect to the nominal

lindres est donné par la formule: 9 oc s ' = (o + Aú) cos  lindres is given by the formula: 9 oc s' = (o + Aú) cos

Lo étant la largeur du produit nitial.  Lo being the width of the nitial product.

L'angle d'incidence O est de préférence compris entre 30 et 60 car, audess:us de 30 , l'élargissement obtenu est faible quel que soit le ccrroyage appliqué et, au-dessus de 60 , la largeur du laminoir  The angle of incidence O is preferably between 30 and 60 because, beyond 30, the enlargement obtained is small irrespective of the crushing applied and, above 60, the width of the rolling mill

devient Drohibitive.becomes Drohibitive.

Bien S-r, la méthode est également applicable aux laminoirs pendulai-  Although S-r, the method is also applicable to pendulum mills.

res =e Iportant qu'un seul cylindre de travail, le corroyage  With only one working cylinder, wrought iron

n'e t alors limité que par la puissance disponible et/ou la géomê-  limited only by available power and / or geometry.

trie du laminoir.sorting of the rolling mill.

La seule modification notable à apporter aux laminoirs existants, pour appliquer le procéde selon l'invention, est le fait que les  The only significant modification to be made to the existing rolling mills, in order to apply the process according to the invention, is the fact that the

dispositifs de guidage d'entrée doivent être orientables par rap-  Entrance guiding devices shall be adjustable

port a l'axe du laminoir.port to the axis of the rolling mill.

L'invention sera mieux comprise à l'aide de la figure 2 qui repré-  The invention will be better understood with the aid of FIG.

sente une vue schématique en plan du laminoir et la figure 3 qui -3-  a schematic plan view of the rolling mill and FIG.

représente une vue schématique en coupe longitudinale du laminoir.  represents a schematic view in longitudinal section of the rolling mill.

Dans le cas des corrcyages élevés ( 90 à 95 % par exemple) avec un  In the case of high corrcyages (90 to 95% for example) with a

laminoir planétaire, on constate que (' ' est faible ( 1 à 5 ) et pres-  planetary mill, we find that ('' is low (1 to 5) and almost

que indépendant du taux de réduction; le facteur d'élargissement 'k ne dépend pratiquement que de l'angle Q. On a alors: k l  that independent of the rate of reduction; the expansion factor 'k depends practically only on the angle Q. We then have:

cos e-cos e-

Le produit à laminer ( 1) entre sous l'incidence t dans le laminoir et sort au-delà du plan ( 2 ') des axes ( 2) des cylindres d'appui ( 4), avec l'émergence Y' Le produit est guidé à l'entrée par les règles ( 5); on peut remarquer sur-la figure 3 qu'un seul des cylindres de  The product to be rolled (1) enters under the incidence t in the rolling mill and leaves beyond the plane (2 ') of the axes (2) of the support rollers (4), with the emergence Y' The product is guided at the entrance by the rules (5); it can be seen in FIG. 3 that only one of the cylinders of

travail ( 3) est en contact avec le produit ( 1).  Work (3) is in contact with the product (1).

EXEMPLE:EXAMPLE:

On applique le procéde à l'aide d'un laminoir type Lauener à 4 cy-  The process is applied using a Lauener rolling mill at 4 cycles.

lindres (O 250 mm) dont le rayon de giration est R = 1500 mm sur un alliage d'Al type 1050 à chaud ayant une épaisseur initiale de 100 mm et une épaisseur finale de 5 mm L'élargissement obtenu varie de ' à 100 % en fonction de l'angle d'incidence choisi entre 30 et -4-  linders (O 250 mm) whose radius of gyration is R = 1500 mm on an alloy of Al type 1050 hot having an initial thickness of 100 mm and a final thickness of 5 mm The enlargement obtained varies from 'to 100% depending on the angle of incidence chosen between 30 and -4-

Claims (3)

REVENDICATIONCLAIM 1 Méthode pour élargir de LA un produit métallurgique méplat de  1 Method for expanding from LA a metallurgical flat product of largeur initiale 9 o et d'épaisseur initiale Ho, à l'aide d'un lami-  initial width 9 o and initial thickness Ho, using a noir planétaire dont le rayon de giration des N cylindres de travail est R, caractérisée en ce que: on introduit le produit guidé latéralement par des moyens appro-  planetary black, the radius of gyration of the N working rolls is R, characterized in that: the laterally guided product is introduced by appropriate means; priés connus, sous une incidence O non nulle par rapport à la nor-  known, with a non-zero incidence of O relative to the standard male aux cylindres (N),male to cylinders (N), on impose une diminution d'épaisseur du produit (ou passe) AH in-  it imposes a decrease in thickness of the product (or pass) AH in- férieure à: AH = 2 R(< cos 2-) 2 Méthode selon la revendication 1, caractérisée en ce qu'une valeur approchée de 'est donnée par les courbes paramétriques de la figure i, en fonction de la valeur relative de la passe choisie  less than: AH = 2 R (<cos 2-) 2 Method according to claim 1, characterized in that an approximate value of 'is given by the parametric curves of figure i, as a function of the relative value of the pass selected (:H/Ho' et de l'élargissement relatif souhaité (A/o).  (: H / Ho 'and the desired relative enlargement (A / o). 3 Ma-ode selon la revendication 1 ou 2, caractérisée en ce que  3 Ma-ode according to claim 1 or 2, characterized in that est cz:ris entre 30 et 600.is between 30 and 600. 4 _ -ioir planétaire ou pendulaire pour la mise en oeuvre de la  4-planetary or pendulum for the implementation of the r. ractérisé en ce que les guides d'entrée ( 5) sont orien-  r. characterized in that the entry guides (5) are ta::ar rapport à l'axe des cylindres ( 2).  ta: ar relative to the axis of the cylinders (2).
FR8302886A 1983-02-15 1983-02-15 PROCESS FOR EXTENDING, BY ROLLING, A METALLURGICAL MEPLATE PRODUCT Pending FR2540755A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR8302886A FR2540755A1 (en) 1983-02-15 1983-02-15 PROCESS FOR EXTENDING, BY ROLLING, A METALLURGICAL MEPLATE PRODUCT
JP2151984A JPS59153502A (en) 1983-02-15 1984-02-08 Enlargement of flat metallurgical product by rolling
DE19843405076 DE3405076A1 (en) 1983-02-15 1984-02-13 METHOD FOR WIDING A METALLURGICAL SEMI-PRODUCT BLOCK
GB08403888A GB2135224A (en) 1983-02-15 1984-02-14 A method of widening a flat metallurgical product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8302886A FR2540755A1 (en) 1983-02-15 1983-02-15 PROCESS FOR EXTENDING, BY ROLLING, A METALLURGICAL MEPLATE PRODUCT

Publications (1)

Publication Number Publication Date
FR2540755A1 true FR2540755A1 (en) 1984-08-17

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ID=9286166

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8302886A Pending FR2540755A1 (en) 1983-02-15 1983-02-15 PROCESS FOR EXTENDING, BY ROLLING, A METALLURGICAL MEPLATE PRODUCT

Country Status (4)

Country Link
JP (1) JPS59153502A (en)
DE (1) DE3405076A1 (en)
FR (1) FR2540755A1 (en)
GB (1) GB2135224A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5756104A (en) * 1980-09-20 1982-04-03 Sumitomo Metal Ind Ltd Blooming method by universal slabbing mill

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3392566A (en) * 1961-07-03 1968-07-16 Lodge & Shipley Co Metal rolling
GB998496A (en) * 1962-04-10 1965-07-14 Frederick Davison Cartwright Improvements in or relating to the control of directional properties of metals and their alloys
US3241349A (en) * 1963-10-03 1966-03-22 Lodge & Shipley Co Method for widening and removing crown from strip stock

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5756104A (en) * 1980-09-20 1982-04-03 Sumitomo Metal Ind Ltd Blooming method by universal slabbing mill

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, vol. 6, no. 130 (M-143)[1008], 16 juillet 1982 & JP - A - 57 56104 (SUMITOMO KINZOKU KOGYO K.K.) 03-04-1982 *

Also Published As

Publication number Publication date
JPS59153502A (en) 1984-09-01
GB2135224A (en) 1984-08-30
GB8403888D0 (en) 1984-03-21
DE3405076A1 (en) 1984-08-16

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