EP0496726A2 - Procédé et installation pour la fabrication en continue de fil enroulé en bobines - Google Patents
Procédé et installation pour la fabrication en continue de fil enroulé en bobines Download PDFInfo
- Publication number
- EP0496726A2 EP0496726A2 EP92890019A EP92890019A EP0496726A2 EP 0496726 A2 EP0496726 A2 EP 0496726A2 EP 92890019 A EP92890019 A EP 92890019A EP 92890019 A EP92890019 A EP 92890019A EP 0496726 A2 EP0496726 A2 EP 0496726A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- wire
- ring
- cooling
- zone
- compensation zone
- 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.)
- Withdrawn
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
- C21D8/08—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires for concrete reinforcement
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/525—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods
Definitions
- the invention relates to a method for the continuous production of wire wound into rings, in which a continuously cast strand of material is rolled into a wire with a predetermined cross section, the wire is subjected to a continuous cooling and then a predetermined production length of the wire is wound into a ring.
- the invention further relates to a plant for performing the method.
- the invention is based on the problem, starting from casting strands with a small cross-section by rolling as directly as possible in the first heat, to enable essentially continuous production of rings formed from heat-treated wire materials, the heat present in the wire being used during the production process in order to be used in Finished product to achieve a predetermined material structure and the desired mechanical-technological properties.
- this should namely be available in the form of rings with the highest possible ring weights and at the same time it should be ensured that the cooled finished product has the desired mechanical-technological properties after winding and does not have any internal stress states which occur in the Processing lead to problems.
- a disadvantage of this process is the fact that a large number of complex process steps are required in order to achieve the desired technological properties of the finished product.
- heating the wire material again would destroy the structure formed in the wire material after the first heat treatment, and the mechanical-technological properties of the wire material would be undesirably changed.
- a method for producing rolled steel products is also known, in which the rolled steel products undergo rapid cooling after leaving the finishing stands, which is sufficient for martensitic or bainitic surface quenching, the cooling conditions being regulated in such a way that at the outlet from the cooling zone, the core of the rolled steel products still has a temperature which is sufficient for natural reheating of the quenched surface layer by supplying heat from the core; the surface layer has temperatures between 450 and 750 ° C, preferably between 550 and 700 ° C after the reheating.
- the object of the invention is to provide a method of the type specified in the introduction and a system intended for its implementation, which the generation enable a homogeneous, twist-free or torsion-free end product with a predetermined material structure and predetermined mechanical-technological properties in the form of wire rings.
- the process according to the invention is characterized in that the wire emerging from the roll stand, as is known per se, is first rapidly and briefly cooled to form a martensitic or bainitic surface layer and a core zone of the wire material at a temperature higher than the temperature of the surface layer, that the wire is allowed to linger in a subsequent compensation zone until the quenched surface layer has been left on by the addition of heat, and the wire production length is then combined to form a ring without draft and twist, and the immediately subsequent wire production length is deflected and also free of draft and twist to the ring is summarized.
- the wire combined into rings has a predetermined material structure and predetermined mechanical-technological properties and at the same time is free from twist and distortion, so that it can be processed immediately can, without the need for mechanical and / or thermal aftertreatment.
- the wire is preferably cooled to a temperature below 500 ° C. before it is deflected and combined into a ring. According to a further feature of the invention, the wire is left in the compensation zone for 5 to 20 s.
- a dwell time of 5 - 20 s in the compensation zone means wire lengths of up to 600 m. Guiding such a large length of wire requires drivers, guide devices, supports and deflection devices along the compensation zone. Since the wire in the compensation zone has temperatures that cause deformation of the Wire, in particular the surface of the wire, is not excluded by these devices, the final geometry of the wire generated in the finishing train can be changed to an unacceptable extent in the compensation zone. In the case of wires that have a surface ribbing at the end of the finishing train, these ribs can be severely damaged, and in some cases even completely flattened out again.
- the wire emerging from the roll stand before the rapid and short cooling or at the end of the compensation zone or, if appropriate, behind a cooling section downstream of the compensation zone, the final wire geometry , especially ripping.
- the wire is produced directly from the first heat.
- the invention furthermore relates to a system with a continuous casting device, in particular a casting wheel, of a wire rolling section connected downstream of the casting device and provided with drive devices, to which a wire cooling section is connected, the wire rolling section being preceded and / or connected by scissors for cutting off a predetermined production length;
- this system has the features that a compensation zone adjoins the wire cooling section in the wire running direction, followed by at least two ring shaping devices connected in parallel, each provided with a drive device, for twisting and twisting-free winding of the wire, a device for deflecting in the wire running direction in front of the ring shaping devices the wire production length is provided, and in that a control device is provided which controls the drive devices of the rolling section and the drive devices of the ring forming devices and which enables the wire to be wound in the ring forming devices without tension.
- Another feature of the invention is before Cooling section or at the end of the compensation zone or behind a cooling device, if necessary, downstream of the compensation zone, an additional roll stand is provided, with which the final wire geometry, in particular ribbing, can be imparted to the wire.
- the ring-forming device preferably has a coil which can be driven by means of the associated drive device and has a coil core, preferably with a diameter which can be changed, and a laying device.
- FIG. 1 and 2 schematically show a system according to the invention in two different embodiments.
- a casting strand G with a small cross-section is cast in a continuous casting installation 1, which works for casting as long as possible billets, for example using the casting wheel method.
- a water-cooled groove provided on the circumference of a continuously rotating casting wheel is used as the mold, which is closed in the casting area by a continuous endless steel band.
- the cross section of the casting strand G is, for example, trapezoidal, but it can also have any other shape.
- flying shears 2 are provided in the example shown.
- the billet K can optionally be additionally heated or cooled in order to change the piercing temperature required for rolling the billet and to adapt it to the subsequent process steps.
- the heat treatment device 3 can also serve as a billet store in order to fulfill a buffer function in the event of any disturbances in the material flow.
- the rolling section has drive devices (not shown) and, in the exemplary embodiment shown, consists of a roughing mill 4, a middle mill 5 and a finishing mill 6.
- the wire D emerging from the finishing train 6 then passes through a cooling section 7, in which the wire D is cooled so quickly and briefly that this quenching forms a martensitic or bainitic surface layer of predetermined thickness in the wire material, while the core of the wire material follows Leaving the cooling section 7 is still at a significantly higher temperature than the surface layer.
- the wire remains in a compensation zone 8 downstream of the cooling section 7, depending on the rolling speed, for 5 to 20 s, so that the martensitic or bainitic surface layer of the wire material is left to cool by the heat stored in the core of the material, whereby a tempered martensitic or bainitic layer is created, while the core has a ferritic-pearlitic structure.
- the quenching process in the cooling section 7 and the dwell time in the compensation zone 8 and optionally the rolling heat are controlled and coordinated with one another in dependence on the rolling speed and the wire diameter such that the finished wire material after leaving the compensation zone 8 has the desired structure and the desired mechanical-technological Possesses properties.
- a cooling device 9 optionally adjoins the equalization zone 8, which ensures that the wire is cooled to temperatures below 500 ° C. in order to ensure that, on the one hand, the desired structure and the desired mechanical-technological properties of the cooled finished product can be achieved and, on the other hand, the wire can be combined in the form of rings in the subsequent devices with little technical effort.
- the cooling device 9 is always required when the wire temperature at the end of the compensation zone 8 is higher than 500 ° C. in order to anneal the wire, i.e. to prevent uncontrolled changes in the mechanical-technological properties in the subsequent devices of the system according to the invention.
- the wire D is then fed by means of a deflection device 10 to one of two ring-forming devices 11, 11 ', in which the wire D is combined to form rings without tension and distortion.
- the deflection device 10 may be preceded by a cutting device, not shown, in which the wire is cut to a desired length.
- the scissors 2 can optionally be omitted.
- the deflection device 10 After the end of the relevant production length of the wire fed to the ring-forming device 11 has passed through the deflection device 10, the deflection device 10 is used to switch to the other parallel or to one of a plurality of ring-forming devices 11 'connected in parallel to the subsequent wire length in the ring-forming device 11 'Also pull and twist-free to form a ring and allow an essentially continuous production.
- the ring-forming device 11 consists, for example, of a winding device which winds the wire D without tension and distortion onto a coil 13 driven by a drive device 12, a laying device 14 laying the wire in adjacent turns and superimposed layers.
- the coil 13 is equipped with a coil core which can be changed in diameter.
- the ring-forming device 11 can, however, as shown for the parallel device 11 ', for example, have a Garret reel 15 driven by a drive device 12', in which the wire is also combined in a ring without tension and distortion, the However, in contrast to the winding device of the ring forming device 11, the ring is wound loosely.
- ring-forming device 11 in the context of the invention, it is of course possible to also form the ring-forming device 11 'as a winding device.
- further types of ring-forming devices can be used within the scope of the invention, which enable wire rings to be wound without tension and distortion.
- the continuous casting plant 1, the rolling speed of the rolling mill 4, 5, 6 and the winding speeds of the ring-forming devices 11, 11 ' are coordinated with one another in such a way that in each case the wire is wound without tension.
- the compensation zone 8 is additionally used as a material store.
- the finishing train 6 can have a roll stand 16 on the outlet side, which produces the final geometry of the wire, in particular rolls the ribs onto the wire surface and can optionally be put out of operation.
- the wire is conveyed through the compensation zone 8 with the aid of a driver 17 arranged within the compensation zone 8 and is safely guided in the compensation zone with the aid of guide devices, supports and deflection devices (not shown).
- An additional roll stand 18, which is expediently used for rolling the ribs on the wire surface, is arranged in this case at the end of the compensation zone 8 and takes over the function of the roll stand 16, which then is stopped.
- a rolling stand 18 ' which is also preferably used for rolling the ribs on the wire surface, can be connected downstream of the cooling device 9 and immediately in front of the deflection device 10 are arranged.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Metal Rolling (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT165/91 | 1991-01-25 | ||
AT16591A AT398714B (de) | 1991-01-25 | 1991-01-25 | Verfahren und anlage zum kontinuierlichen erzeugen von zu ringen gewickeltem draht |
AT149091A AT400822B (de) | 1991-07-25 | 1991-07-25 | Verfahren und anlage zum kontinuierlichen erzeugen von zu ringen gewickeltem draht |
AT1490/91 | 1991-07-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0496726A2 true EP0496726A2 (fr) | 1992-07-29 |
EP0496726A3 EP0496726A3 (fr) | 1994-01-12 |
Family
ID=25591708
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92890019A Withdrawn EP0496726A2 (fr) | 1991-01-25 | 1992-01-24 | Procédé et installation pour la fabrication en continue de fil enroulé en bobines |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP0496726A2 (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1111075A1 (fr) * | 1999-12-23 | 2001-06-27 | SMS Demag AG | Procédé pour le traitement thermique de fil |
WO2004104237A1 (fr) * | 2003-05-22 | 2004-12-02 | Danieli & C. Officine Meccaniche S.P.A. | Procede de bobinage pour metal en barres |
CN112974531A (zh) * | 2021-01-13 | 2021-06-18 | 南京尚吉增材制造研究院有限公司 | 连铸连轧制备钛合金丝材的可控短流程制备系统 |
WO2022248102A1 (fr) * | 2021-05-28 | 2022-12-01 | Sms Group Gmbh | Système et procédé de production de produits en acier sous forme de fils et/ou de barres |
WO2022248103A1 (fr) * | 2021-05-28 | 2022-12-01 | Sms Group Gmbh | Système et procédé pour la production d'aciers en forme de tige |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1181257B (de) * | 1961-05-19 | 1964-11-12 | Vaughn Machinery Company | Vorrichtung zum kontinuierlichen Patentieren von Stahldraht |
FR2165908A1 (fr) * | 1971-12-02 | 1973-08-10 | Properzi Giulio | |
DE2602656A1 (de) * | 1975-01-29 | 1976-08-05 | Centre Rech Metallurgique | Verfahren fuer die herstellung von walzstahlerzeugnissen |
DE2539697A1 (de) * | 1975-09-06 | 1977-03-10 | Ali Bindernagel | Giesswalzanlage fuer draht |
US4469534A (en) * | 1981-12-12 | 1984-09-04 | Southwire Company | Method for controlled temperature accumulator for elongated materials |
EP0271129A1 (fr) * | 1986-12-02 | 1988-06-15 | DANIELI & C. OFFICINE MECCANICHE S.p.A. | Installation pour le refroidissement de bobines de fils et de barres laminées |
-
1992
- 1992-01-24 EP EP92890019A patent/EP0496726A2/fr not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1181257B (de) * | 1961-05-19 | 1964-11-12 | Vaughn Machinery Company | Vorrichtung zum kontinuierlichen Patentieren von Stahldraht |
FR2165908A1 (fr) * | 1971-12-02 | 1973-08-10 | Properzi Giulio | |
DE2602656A1 (de) * | 1975-01-29 | 1976-08-05 | Centre Rech Metallurgique | Verfahren fuer die herstellung von walzstahlerzeugnissen |
DE2539697A1 (de) * | 1975-09-06 | 1977-03-10 | Ali Bindernagel | Giesswalzanlage fuer draht |
US4469534A (en) * | 1981-12-12 | 1984-09-04 | Southwire Company | Method for controlled temperature accumulator for elongated materials |
EP0271129A1 (fr) * | 1986-12-02 | 1988-06-15 | DANIELI & C. OFFICINE MECCANICHE S.p.A. | Installation pour le refroidissement de bobines de fils et de barres laminées |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1111075A1 (fr) * | 1999-12-23 | 2001-06-27 | SMS Demag AG | Procédé pour le traitement thermique de fil |
US6682612B2 (en) | 1999-12-23 | 2004-01-27 | Sms Demag Ag | Method of heat treatment of wire |
WO2004104237A1 (fr) * | 2003-05-22 | 2004-12-02 | Danieli & C. Officine Meccaniche S.P.A. | Procede de bobinage pour metal en barres |
US7367208B2 (en) | 2003-05-22 | 2008-05-06 | Danieli & C. Officine Meccaniche S.P.A. | Coil winding method for metal in bars |
CN112974531A (zh) * | 2021-01-13 | 2021-06-18 | 南京尚吉增材制造研究院有限公司 | 连铸连轧制备钛合金丝材的可控短流程制备系统 |
CN112974531B (zh) * | 2021-01-13 | 2022-10-28 | 南京尚吉增材制造研究院有限公司 | 连铸连轧制备钛合金丝材的可控短流程制备系统 |
WO2022248102A1 (fr) * | 2021-05-28 | 2022-12-01 | Sms Group Gmbh | Système et procédé de production de produits en acier sous forme de fils et/ou de barres |
WO2022248103A1 (fr) * | 2021-05-28 | 2022-12-01 | Sms Group Gmbh | Système et procédé pour la production d'aciers en forme de tige |
Also Published As
Publication number | Publication date |
---|---|
EP0496726A3 (fr) | 1994-01-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0415987B1 (fr) | Procede pour produire en continu du feuillard d'acier ou de la tole d'acier a partir de produits plats fabriques selon le procede de coulee continue en arc | |
DE69730750T2 (de) | Verfahren zur herstellung eines stahlbandes | |
EP1951451B2 (fr) | Procede de fabrication d'un feuillard d'acier lamine a chaud et installation combinee de coulee et de laminage en vue de la mise en oeuvre du procede | |
WO1997036699A1 (fr) | Procede et unite pour fabriquer un feuillard d'acier lamine a chaud | |
DE102008003222A1 (de) | Kompakte flexible CSP-Anlage für Endlos-, Semi-Endlos- und Batchbetrieb | |
DE3027927C2 (fr) | ||
DE2414015A1 (de) | Verfahren und vorrichtung zum steuern der kuehltemperatur von warmem stahldraht | |
EP0761326A1 (fr) | Installation pour la production d'une bande mince laminée à chaud | |
DE102009018683A1 (de) | Verfahren und Vorrichtung zum Stranggießen einer Bramme | |
EP3341142B1 (fr) | Procédé de fonctionnement d'une installation fonctionnant suivant le concept csp (compact strip production) | |
EP0595282B1 (fr) | Procédé et installation pour la fabrication de bandes d'acier laminées à chaud, en particulier à partir d'une ébauche de bande coulée en continu | |
DE2208270B2 (de) | Tandemzieh- und glühverfahren für elektrischen Leiterdraht sowie Schmiermittel für das Verfahren und Vorrichtung zum Durchführen des Verfahrens | |
EP1812609B1 (fr) | Procede et dispositif de façonnage a proximite de la taille finale de produits de depart en forme de fils et de barres | |
WO2016165933A1 (fr) | Installation de coulée et de laminage et procédé servant à faire fonctionner ladite installation | |
DE3039101A1 (de) | Anordnung einer kontinuierlich arbeitenden feinstahl-drahtwalzstrasse zum auswalzen von draht oder rundquerschnitten aus edelstaehlen oder hochwertigen legierungen | |
EP0496726A2 (fr) | Procédé et installation pour la fabrication en continue de fil enroulé en bobines | |
DE1602371A1 (de) | Verfahren zum Herstellen eines laenglichen Produktes,wie eines Drahtes,eines Kabels oder einer Stange,aus Kohlenstoffstahl,mit hoher Bruch- und Dehnungsfestigkeit,sowie nach diesem Verfahren hergestellte Produkte | |
EP0314667B2 (fr) | Procédé et dispositif pour la fabrication de fils, de barres, de tuyaux et de profilés minces en aciers ou alliages difficilement déformables, notamment en aciers durcissables | |
DE102012224531A1 (de) | Verfahren zur Herstellung von kornorientierten Silizium-Stählen | |
EP3027331B1 (fr) | Installation de laminage de coulée continue et procédé de fabrication de brames | |
AT398714B (de) | Verfahren und anlage zum kontinuierlichen erzeugen von zu ringen gewickeltem draht | |
WO1999058263A1 (fr) | Procede et systeme pour produire un feuillard d'acier | |
DE19632448A1 (de) | Verfahren und Anlage zur Herstellung von Band aus niedriggekohlten und ultraniedriggekohlten Stählen | |
AT400822B (de) | Verfahren und anlage zum kontinuierlichen erzeugen von zu ringen gewickeltem draht | |
DE805753C (de) | Verfahren zum Herstellen von Feindraht aus Stahl |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU MC NL PT SE |
|
ITCL | It: translation for ep claims filed |
Representative=s name: BARZANO' E ZANARDO MILANO S.P.A. |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU MC NL PT SE |
|
17P | Request for examination filed |
Effective date: 19940418 |
|
17Q | First examination report despatched |
Effective date: 19961211 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19970422 |