EP0053600B1 - Procédé pour la fabrication d'une tôle forte en acier - Google Patents

Procédé pour la fabrication d'une tôle forte en acier Download PDF

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Publication number
EP0053600B1
EP0053600B1 EP81890158A EP81890158A EP0053600B1 EP 0053600 B1 EP0053600 B1 EP 0053600B1 EP 81890158 A EP81890158 A EP 81890158A EP 81890158 A EP81890158 A EP 81890158A EP 0053600 B1 EP0053600 B1 EP 0053600B1
Authority
EP
European Patent Office
Prior art keywords
slabs
rolling
thickness
roll
steel
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
Application number
EP81890158A
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German (de)
English (en)
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EP0053600A1 (fr
Inventor
Aktiengesellschaft Voest-Alpine
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.)
Voestalpine Stahl Linz GmbH
Original Assignee
Voestalpine AG
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 Voestalpine AG filed Critical Voestalpine AG
Publication of EP0053600A1 publication Critical patent/EP0053600A1/fr
Application granted granted Critical
Publication of EP0053600B1 publication Critical patent/EP0053600B1/fr
Expired 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
    • B21B1/38—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 sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling

Definitions

  • the invention relates to a method for producing a heavy plate from steel, in particular with a thickness of more than 50 mm, by hot rolling a primary material in several passes.
  • ESU process electro slag remelting process
  • B.E.S.T. process B.E.S.T. process
  • the invention aims to avoid the disadvantages and difficulties described and has as its object to create a method of the type described above, with which heavy plates, in particular heavy plates of great thickness, can be produced inexpensively and in high-quality, error-free quality.
  • Roll welding is known per se from AT-C-302 223. It was previously used to produce multilayer rolled products, the layers of the rolled product being formed from materials with different chemical compositions.
  • Such multilayer rolled products are clad sheets, usually a base material made of ordinary steel being provided on one or both surfaces with a rust or acid-resistant coating or plating material. During roll cladding, the superimposed layers weld due to the rolling pressure and the high rolling temperature.
  • slabs are used according to the invention which originate from the same steel melt.
  • At least two packages are first formed from at least two slabs each, whereby after the slab packages have been welded to form a roll block, these roll blocks are stacked on top of one another and welded to one another by roll welding and reduced in thickness.
  • the method according to the invention is of particular importance with regard to quality and costs if continuous cast slabs are used as slabs.
  • the field of application for continuous casting slabs is significantly expanded, since the ratio of the thickness of the starting material, i. H. the slab thickness to the sheet thickness can be very small.
  • Continuous cast slabs provided the manufacturing conditions are selected correctly, have a perfect surface and interior quality. Furthermore, they have only a small segregation zone of low intensity. Continuous cast slabs are therefore practically free of internal cracks and poor in inclusions, so that they are particularly advantageous for the process according to the invention.
  • a heavy plate with a thickness of 150 mm is to be made from unalloyed structural steel.
  • Continuous casting slabs 1 with a thickness of 200 mm are available for carrying out the method. To achieve the of Heavy plate required mechanical properties, a fourfold deformation is considered sufficient. Accordingly, three continuous casting slabs 1 are placed one above the other to form a package 2, so that the package 2 has a thickness of approximately 600 mm before being deformed.
  • the slabs 1 come from a strand and from a melt.
  • the slab surfaces 3, which come to lie on one another, are ground before the package is built. If the ground slab surfaces are sufficiently flat, the package can be evacuated (after the edge of the stacked slabs has been welded).
  • the package After the package has been built, the package is rolled down in several passes (indicated by the arrows 4) to a thickness of 150 mm using the hot rolling method.
  • the primary material, the continuous casting slabs 1, have a high degree of purity of non-metallic inclusions, so that after hot rolling there is a homogeneous material with a thickness of 150 mm. This is confirmed by ultrasonic testing.
  • the heavy plate 5 produced in this way can be produced much more cost-effectively than that in the usual way via a block casting.
  • a heavy plate with a thickness of 300 mm is to be produced.
  • the available continuous caster enables the production of 300 mm thick slabs 6, which are to be used as a raw material for this sheet.
  • the thickness ratio of the slab thickness to the thickness of the heavy plate to be produced is therefore one.
  • the sheet should be made from nine continuous cast slabs. in several stages. First, three packages 7 of three slabs each are formed and each package is welded to a roll block 8 by roll welding.
  • the rolling blocks 8 thus formed have a thickness of 250 mm.
  • These three pre-rolled blocks 8 are subsequently combined to form a further approximately 750 mm thick package 9 (roll block package), which is then rolled down to the desired final thickness of 300 mm by roll welding.
  • the usual hot rolling conditions are observed during rolling. All of the superimposed surfaces 10, 11 of the slabs 6 and of the rolling blocks 8 were ground before the package was built.
  • the sheet 12 produced by this method also fulfills all quality requirements.
  • the sheet to be produced is to have a very large thickness or if a larger number of slabs is required due to the desired degree of deformation, it is advantageous to form "sub-packages" and to form each of these sub-packages by roll welding to form a billet and then the billets again in one To stack the “roll block package” on top of one another and to weld them to one another by roll welding, it being possible to start with any number of slabs or to continue working with any number of roll block packages.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Claims (5)

1. Procédé pour fabriquer une tôle forte (5, 12) en acier, notamment, d'une épaisseur de plus de 50 mm, par laminage à chaud d'une matière de départ (1, 6) en plusieurs passes, caractérisé par les caractéristiques suivantes:
a) on traite au moins deux brames (1, 6) d'une même qualité d'acier et d'une même largeur, au moins sur une surface latérale large (3) de chacune, de manière à remplir les conditions pour le soudage par laminage;
b) on superpose les brames (1, 6) en mettant leurs surfaces latérales larges (3) prétraitées en contact entre elles;
c) on bloque les brames (1, 6) pour les empêcher de se décaler mutuellement;
d) on chauffe le paquet (2, 7) ainsi formé à la température de laminage; et
e) on le lamine ensuite en plusieurs passes.
2. Procédé selon la revendication 1, caractérisé en ce qu'on utilise des brames (1, 6) qui proviennent de la même coulée d'acier.
3. Procédé selon l'une des revendications 1 et 2, caractérisé en ce que, tout d'abord, on forme au moins deux paquets d'au moins deux brames (6) chacun et, après avoir soudé les paquets de brames (7) chacun en un lingot laminé (8), on superpose ces lingots laminés (8) et, par soudage par laminage, on les soude ensemble et on les réduit en épaisseur.
4. Procédé selon les revendications 1 à 3, caractérisé en ce qu'après les avoir superposés, on bloque les brames (1, 6) ou les lingots laminés (8) au moyen de chevilles de stabilisation (13) pour les empêcher de se décaler les uns par rapport aux autres.
5. Procédé selon les revendications 1 à 4, caractérisé en ce qu'on utilise, comme brames (1, 6) des brames de coulée continue.
EP81890158A 1980-12-02 1981-10-01 Procédé pour la fabrication d'une tôle forte en acier Expired EP0053600B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT5879/80 1980-12-02
AT0587980A AT374704B (de) 1980-12-02 1980-12-02 Verfahren zum herstellen eines grobbleches aus stahl

Publications (2)

Publication Number Publication Date
EP0053600A1 EP0053600A1 (fr) 1982-06-09
EP0053600B1 true EP0053600B1 (fr) 1984-09-19

Family

ID=3580541

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81890158A Expired EP0053600B1 (fr) 1980-12-02 1981-10-01 Procédé pour la fabrication d'une tôle forte en acier

Country Status (5)

Country Link
US (2) US4493452A (fr)
EP (1) EP0053600B1 (fr)
JP (1) JPS57118879A (fr)
AT (1) AT374704B (fr)
DE (1) DE3166190D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018091571A1 (fr) 2016-11-18 2018-05-24 Sms Group Gmbh Procédé et dispositif de fabrication d'un matériau complexe sous forme de bande continue
EP3725450A2 (fr) 2019-04-18 2020-10-21 SMS Group GmbH Procédé et dispositif de fabrication d'une matière composite multicouche

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130509B (en) * 1982-11-16 1986-03-05 Rolls Royce A method for eliminating or minimising the effects of defects in materials
US5362168A (en) * 1992-10-21 1994-11-08 Zebra Co., Ltd. Writing device with spaced walls and sliding valve
US5661241A (en) * 1995-09-11 1997-08-26 The Babcock & Wilcox Company Ultrasonic technique for measuring the thickness of cladding on the inside surface of vessels from the outside diameter surface
DE102015110361B4 (de) * 2015-06-26 2019-12-24 Thyssenkrupp Ag Verfahren zum Herstellen eines Werkstoffverbundes in einer Walzanlage und Verwendung der Walzanlage
AT519697B1 (de) * 2017-03-03 2021-01-15 Primetals Technologies Germany Gmbh Verfahren zur kontinuierlichen Herstellung von Stahlband
CN113617840B (zh) * 2021-08-09 2023-04-07 长春工业大学 一种多金属多层梯度复合材料的制备方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US987774A (en) * 1910-05-25 1911-03-28 Carl T Torsell Manufacture of combined steel ingots and plates.
AT302223B (de) * 1970-09-22 1972-10-10 Voest Ag Verfahren zur Erzeugung von dreischichtigen Walzprodukten
DE2504866A1 (de) * 1974-04-06 1975-10-16 Kyoei Steel Ltd Warmwalzwerk
DE2651958A1 (de) * 1975-11-24 1977-06-02 Voest Ag Verfahren zur herstellung von blechen, insbesondere von grobblechen, und einrichtung zur durchfuehrung des verfahrens

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US70212A (en) * 1867-10-29 Improved method of piling, heating, and fluxing fagots foe eaileoad bails
US158578A (en) * 1875-01-12 Improvement in the manufacture of piles for beams
US1392416A (en) * 1919-12-27 1921-10-04 Driver Harris Co Method of producing compound metals
US2457861A (en) * 1943-05-14 1949-01-04 Brassert & Co Method of manufacturing metal products
US2753623A (en) * 1951-01-05 1956-07-10 Metals & Controls Corp Solid phase bonding of metals
US2704883A (en) * 1952-02-18 1955-03-29 United States Steel Corp Method of welding carbon steel to stainless steel
JPS5114109A (ja) * 1974-07-25 1976-02-04 Tsunetaro Moro Kanetsuroniokeruidoroshonofureemunosoriboshihoho
US4113166A (en) * 1974-12-30 1978-09-12 Olsson Erik Allan Method of and apparatus for converting molten metal into solidified products
US4141482A (en) * 1977-04-25 1979-02-27 Reynolds Metals Company Laminated compacted particle aluminum sheet
AT359810B (de) * 1978-03-14 1980-12-10 Voest Alpine Ag Verfahren zum herstellen von plattierten blechen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US987774A (en) * 1910-05-25 1911-03-28 Carl T Torsell Manufacture of combined steel ingots and plates.
AT302223B (de) * 1970-09-22 1972-10-10 Voest Ag Verfahren zur Erzeugung von dreischichtigen Walzprodukten
DE2504866A1 (de) * 1974-04-06 1975-10-16 Kyoei Steel Ltd Warmwalzwerk
DE2651958A1 (de) * 1975-11-24 1977-06-02 Voest Ag Verfahren zur herstellung von blechen, insbesondere von grobblechen, und einrichtung zur durchfuehrung des verfahrens

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018091571A1 (fr) 2016-11-18 2018-05-24 Sms Group Gmbh Procédé et dispositif de fabrication d'un matériau complexe sous forme de bande continue
WO2018091572A1 (fr) 2016-11-18 2018-05-24 Sms Group Gmbh Procédé et dispositif de fabrication d'un matériau complexe sous forme de bande continue
WO2018091562A1 (fr) 2016-11-18 2018-05-24 Sms Group Gmbh Procédé et dispositif de fabrication d'un matériau complexe sous forme de bande continue
DE102017220434A1 (de) 2016-11-18 2018-05-24 Sms Group Gmbh Verfahren und Vorrichtung zur Herstellung eines kontinuierlichen bandförmigen Verbundmaterials
DE102017220416A1 (de) 2016-11-18 2018-05-24 Sms Group Gmbh Verfahren und Vorrichtung zur Herstellung eines kontinuierlichen bandförmigen Verbundmaterials
DE102017220435A1 (de) 2016-11-18 2018-05-24 Sms Group Gmbh Verfahren und Vorrichtung zur Herstellung eines kontinuierlichen bandförmigen Verbundmaterials
US11400542B2 (en) 2016-11-18 2022-08-02 Sms Group Gmbh Method and device for producing a continuous strip-shaped composite material
EP3725450A2 (fr) 2019-04-18 2020-10-21 SMS Group GmbH Procédé et dispositif de fabrication d'une matière composite multicouche

Also Published As

Publication number Publication date
AT374704B (de) 1984-05-25
EP0053600A1 (fr) 1982-06-09
US4684053A (en) 1987-08-04
ATA587980A (de) 1983-10-15
US4493452A (en) 1985-01-15
JPS57118879A (en) 1982-07-23
DE3166190D1 (en) 1984-10-25

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