FR2540755A1 - PROCESS FOR EXTENDING, BY ROLLING, A METALLURGICAL MEPLATE PRODUCT - Google Patents
PROCESS FOR EXTENDING, BY ROLLING, A METALLURGICAL MEPLATE PRODUCT Download PDFInfo
- 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
- Authority
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000003475 lamination Methods 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 description 9
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910000754 Wrought iron Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements 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
- B21B39/14—Guiding, positioning or aligning work
- B21B39/16—Guiding, positioning or aligning work immediately before entering or after leaving the pass
-
- 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
- B21B1/026—Rolling
-
- 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
- B21B13/18—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories for step-by-step or planetary rolling; pendulum mills
Landscapes
- 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)
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 |
Family
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)
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)
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 |
-
1983
- 1983-02-15 FR FR8302886A patent/FR2540755A1/en active Pending
-
1984
- 1984-02-08 JP JP2151984A patent/JPS59153502A/en active Pending
- 1984-02-13 DE DE19843405076 patent/DE3405076A1/en not_active Withdrawn
- 1984-02-14 GB GB08403888A patent/GB2135224A/en not_active Withdrawn
Patent Citations (1)
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)
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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TP | Transmission of property |