EP0277109B1 - Dispositif pour le traitement thermique (notamment pour le recuit) d'un fil métallique en défilement continu - Google Patents

Dispositif pour le traitement thermique (notamment pour le recuit) d'un fil métallique en défilement continu Download PDF

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Publication number
EP0277109B1
EP0277109B1 EP88890005A EP88890005A EP0277109B1 EP 0277109 B1 EP0277109 B1 EP 0277109B1 EP 88890005 A EP88890005 A EP 88890005A EP 88890005 A EP88890005 A EP 88890005A EP 0277109 B1 EP0277109 B1 EP 0277109B1
Authority
EP
European Patent Office
Prior art keywords
wire
drums
heating chamber
deflection
drum
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 - Lifetime
Application number
EP88890005A
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German (de)
English (en)
Other versions
EP0277109A1 (fr
Inventor
Gerhard Dipl.-Ing. Dr. Ritter
Klaus Dipl.-Ing. Ritter
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.)
EVG Entwicklungs und Verwertungs GmbH
Original Assignee
EVG Entwicklungs und Verwertungs GmbH
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Publication date
Application filed by EVG Entwicklungs und Verwertungs GmbH filed Critical EVG Entwicklungs und Verwertungs GmbH
Publication of EP0277109A1 publication Critical patent/EP0277109A1/fr
Application granted granted Critical
Publication of EP0277109B1 publication Critical patent/EP0277109B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire

Definitions

  • the arrangement of a drum wrapped in wire directly in the heat treatment area means that the drum itself is heated excessively and in the case of e.g. due to tangling of the interruption in the operation caused by the wire drawn off a reel, the wire in the looping area heats up even further when the temperature in the heat treatment area drops, for example by switching off the radiators and opening a housing enclosing the drum. This results in the risk that the relevant sections of the wire will anneal and become unusable.
  • the invention is therefore concerned with the task of a heat treatment device for a continuous form the advancing wire in such a way that the wire can be passed through a heat treatment area of moderate dimensions with the longest possible dwelling time without the need to arrange drum-like rotating bodies which are wrapped in the wire in the heat treatment area and which are heated to high temperature and thereby cause the difficulties described above.
  • an essentially all-round heating chamber is arranged between two mutually axially parallel and rotatably mounted deflection drums which have self-contained wire guide grooves on their outer surface, the wall of which in the intersection areas with the common outer ones Tangential planes on the two deflection drums has inlet and outlet openings for the wire to be looped around the two deflection drums with a plurality of turns lying next to one another, at least one of the two deflection drums being motor-driven and in the heating chamber along the two groups of them traversing back and forth Wire sections radiators are arranged.
  • the drums wrapped in the wire are outside the heating chamber and they are heated only by contact with the heated wire, i.e. considerably less than in the older devices, which also results in the heat returned to the wire by each drum in the event of a break in operation is significantly less and, moreover, problems with regard to the storage of the drums are eliminated.
  • the heating chamber is formed by a base plate and an elongated hood-like housing which can be lifted off the latter and has slots on its two narrow sides, starting from the base of the housing and parallel to the axes of the deflecting rollers, as entry and exit openings for the two groups of Has wire sections and carries the radiator inside on its two long sides.
  • the hood Like housing can then be easily lifted, on the one hand to load the device with the wire during the first start-up by wrapping the drums and on the other hand to remove the radiator from the area affected by the wire in all of a business interruption.
  • the deflection drums are advantageous according to the previously mentioned older proposal by the applicant rotatable, disc-shaped bodies of rotation, each of which has self-contained wire guide grooves on its circumference.
  • the disk-shaped rotating bodies can then rotate against one another with friction and thereby effectively change the wrap angle. It is particularly advantageous if the diameters of the disk-shaped rotating bodies increase along at least one of the drum axes, etc. in relation to the thermal expansion of the wire to be expected along the drum, preferably disproportionately. This ensures that the wire remains firmly in contact with the drum jacket in spite of the wire being heated and the thermal expansion caused by it.
  • the device according to FIGS. 1 and 2 has a heating chamber 1 formed by a base plate 3 and a hood-like housing 4 which can be lifted off and which is expediently arranged upstream and downstream of the deflection drums 5 arranged outside the heating chamber 1.
  • a heating chamber 1 formed by a base plate 3 and a hood-like housing 4 which can be lifted off and which is expediently arranged upstream and downstream of the deflection drums 5 arranged outside the heating chamber 1.
  • slots 9 are formed in the intersection areas with the common outer tangential planes on the two deflection drums 5 to the axes of the deflection drums, starting from the base of the housing and from on - And exit openings of the chamber 1 for the back and forth wire coulters 8a and 8b serve, which result from the wrapping of the two deflection drums 5 with a plurality of turns of the wire 8.
  • the formation of these inlet and outlet openings by slots extending from the housing base enables the hood-like housing 4 to be lifted off
  • holes can be provided in the base plate 3.
  • the entire device can moreover be surrounded by a larger hood filled with protective gas, so that the wire cools down in an adequate protective gas atmosphere when the hood-like housing 4 is lifted in the event of an interruption in operation.
  • One of the receiving chambers 2 for the deflection drums 5 has inlet and outlet openings 11 for the continuously running wire 8, which are arranged in the interior of the heat treatment device in accordance with the wire guide. It is also possible to provide the inlet opening in one of the chambers 2 and the outlet opening for the wire in the other chamber 2.
  • the deflection drums 5 can be cylindrical rollers, which have self-contained wire guide grooves 6 on their outer surface, the depth of which is so large that the wire 8 they accommodate cannot fall out of the grooves even when thermal expansion occurs.
  • a wire take-off device, not shown, downstream of the heat treatment device, can hold the wire under tension so far in this embodiment that it is held in contact with the drums 5 despite stretching when it is heated.
  • At least one of the drums 5 can be driven by a motor 12 and, as shown in FIG. 1, both drums can optionally also be connected to one another by means of chain wheels 13 and a chain 14.
  • Rows of radiators 10 are attached to the chamber walls on both sides of the movement path of the wire shares 8a and 8b passing through the heating chamber 1. However, it is also possible to provide only one row of radiators, either laterally or in the middle between the movement paths of the two wire shares 8a and 8b.
  • This can be a simple radiant heater, but, as indicated in FIG. 2, heating rods 10a are preferably used, which are arranged in the focal line of reflectors 10b.
  • the reflectors 10b can be designed to be rotatable about the axes of the heating rods 10a.
  • This arrangement makes it possible to switch off the energy supply to the heating rods in the event of an interruption in operation and at the same time to rotate the reflectors by 180 °, so that the residual energy still stored in the heating rods is radiated against the housing walls and not against the wire shares 8a, 8b.
  • the energy supply to the wire coulters can be interrupted in the shortest possible time in the event of a fault.
  • the deflecting drum is composed of disc-shaped rotating bodies 15 which can be rotated relative to one another, each of which has self-contained wire guide grooves 6 on its circumference having.
  • the diameters of the disk-shaped rotary bodies 15 preferably increase along the drum axis, at least in the case of a drum 5, etc. in relation to the thermal and tensile expansion to be expected along the drum, preferably disproportionately.
  • the hubs 16 of the disk-shaped rotary body 15 are, according to FIGS. 3 and 4, rotatably supported by means of liners 17 with frictional engagement on a driven shaft 18, with the exception of the first disk-shaped rotary body 15A, which is connected in a rotationally fixed manner to the shaft 18.
  • the individual rotary bodies 15 can be designed according to FIG. 4 as spoke wheels with a thin wheel rim 20 which has the wire guide grooves 6 and which is connected to the wheel hub 16 by means of spokes 21, which are optionally designed as cooling vanes.
  • FIG. 5 and 6 show a further advantageous exemplary embodiment of the deflection drums 5 for the wire arranged in front of and behind a heating chamber 1, which is only indicated schematically.
  • different disc-shaped rotary bodies 31 and 32 are arranged alternately, which can be rotated relative to one another and which are driven by friction.
  • the diameters of the disk-shaped rotating bodies 31 advantageously increase step by step from a smallest to a largest value, whereas the disk-shaped rotating bodies 32 increase wegs have the same diameter, but which is larger than the largest diameter of the disc-shaped rotary body 31.
  • a wire 8 can now, initially starting from the bottom and progressing upwards, be looped around the two deflection drums 5 in such a way that it always loops around only the grooved, disc-shaped rotating bodies 31.
  • the wire reaches the uppermost disk-shaped rotating body 31 of a drum 5, it is guided to the uppermost disk-shaped rotating body 32 of the other drum 5, in order then to be returned to the plane in the descending direction, but now only touching the grooved disk-shaped rotating body 32 which he entered the device.
  • the wire sections wrapping around the rotating bodies 31 and the rotating bodies 32 cross each other without contact in space.
  • the resulting dwell time in the heating chamber doubles at the same throughput speed of the wire and, moreover, the inlet and outlet openings 11 in FIG. 2 come to lie in alignment in the housing 4. They can therefore both be formed by short slots extending from the base of the housing 4.

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)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Claims (9)

1. Dispositif pour le traitement thermique, notamment le recuit d'un fil métallique en défilement continu, dispositif dans lequel, entre deux tambours de renvoi (5) montés à rota­tion avec parallélisme axial et espacement mutuel et munis, sur leur surface périphérique, de rainures (6) guide-fil par elles-mêmes fermées, se trouve une chambre de chauffage (1) qui est pour l'essentiel fermée de toutes parts et dont la pa­roi présente, dans les zones d'intersection avec les plans tan­gentiels extérieurs communs aux deux tambours de renvoi (5), des orifices (9) d'entrée et de sortie du fil (8) devant être enroulé autour des deux tambours de renvoi (5) par un grand nombre de spires juxtaposées, dispositif dans lequel au moins l'un des deux tambours de renvoi (5) peut être entraîné par un moteur, et la chambre de chauffage (1) renferme des corps chauffants (10) le long des deux nappes (8a, 8b) de tronçons de fil qui traversent ladite chambre en un mouvement d'aller-­retour.
2. Dispositif selon la revendication 1, caractérisé par le fait que la chambre de chauffage (1) est formée par une plaque de base (3) et par un boîtier longiligne (4) du type capot, qui peut être soulevé à l'écart de ladite plaque, pré­sente, sur ses deux côtés étroits, des fentes (9) partant de la base du boîtier (4), parallèles aux axes des rouleaux de renvoi et faisant respectivement fonction d'orifices d'entrée ou de sortie des deux nappes (8a, 8b) de tronçons de fil, et porte intérieurement les corps chauffants (10) sur ses deux côtés longs.
3. Dispositif selon la revendication 1, caractérisé par le fait que des compartiments (2) de réception des deux tam­bours de renvoi (5), pour l'essentiel fermés de toutes parts, sont prévus des deux côtés de la chambre de chauffage (1), les orifices (11) d'entrée et de sortie du fil (8) pouvant être ménagés conjointement sur l'un des deux compartiments de ré­ception (2), ou bien être répartis sur ces deux compartiments (2).
4. Dispositif selon les revendications 2 et 3, caractéri­sé par le fait que le boîtier relevable (4) du type capot, for­mant la chambre de chauffage (1) au-dessus de la plaque de ba­se (3), est réalisé d'un seul tenant avec des parties de car­ter qui forment, en coopération avec la plaque de base, les compartiments (2) de réception des tambours de renvoi (5).
5. Dispositif selon l'une des revendications 1 à 4, ca­ractérisé par le fait que les tambours de renvoi (5) sont com­posés de corps rotatifs (15) pour l'essentiel discoïdaux, pou­vant accomplir une rotation mutuelle et dont chacun présente, sur son pourtour, des rainures (6) guide-fil par elles-mêmes fermées.
6. Dispositif selon la revendication 5, caractérisé par le fait que les diamètres des corps rotatifs discoïdaux (15) augmentent le long de l'axe d'au moins un tambour (5), de pré­férence surproportionnellement en rapport avec la dilatation du fil (8) escomptée le long du tambour.
7. Dispositif selon la revendication 5 ou 6, caractérisé par le fait que chaque tambour de renvoi (5) présente en al­ternance, dans le sens axial, des corps rotatifs discoïdaux (31, 32) de petit diamètre et de diamètre plus grand, de telle sorte que le fil (8), en enlaçant les corps rotatifs discoïdaux (31, respectivement 32) plus petits ou plus grands, puisse tout d'abord être guidé d'une extrémité à l'autre des deux tambours (5), puis être ensuite renvoyé à la première extrémité des deux tambours (5), en enlaçant les corps rotatifs discoïdaux (32, respectivement 31) de l'autre type considéré.
8. Dispositif selon l'une des revendications 1 à 7, ca­ractérisé par le fait que les corps chauffants (10) sont formés par des barreaux chauffants (10a) munis de réflecteurs (10b), les réflecteurs (10b) pouvant pivoter entre une position di­rigeant le rayonnement thermique vers la trajectoire de mou­vement des deux nappes de fil (8a, 8b), et une position for­mant écran protecteur de ces nappes de fil contre le rayonne­ment thermique.
9. Dispositif selon l'une des revendications 1 à 8, ca­ractérisé par le fait que la chambre de chauffage (1), et éven­tuellement aussi les compartiments (2) de réception des tam­bours de renvoi (5), sont emplis d'un gaz protecteur.
EP88890005A 1987-01-19 1988-01-12 Dispositif pour le traitement thermique (notamment pour le recuit) d'un fil métallique en défilement continu Expired - Lifetime EP0277109B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0008387A AT389323B (de) 1987-01-19 1987-01-19 Vorrichtung zum waermebehandeln, insbesondere gluehen, eines kontinuierlich fortbewegten metalldrahtes
AT83/87 1987-01-19

Publications (2)

Publication Number Publication Date
EP0277109A1 EP0277109A1 (fr) 1988-08-03
EP0277109B1 true EP0277109B1 (fr) 1991-03-06

Family

ID=3481078

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88890005A Expired - Lifetime EP0277109B1 (fr) 1987-01-19 1988-01-12 Dispositif pour le traitement thermique (notamment pour le recuit) d'un fil métallique en défilement continu

Country Status (7)

Country Link
US (1) US4860999A (fr)
EP (1) EP0277109B1 (fr)
JP (1) JPS63199827A (fr)
AT (1) AT389323B (fr)
DE (1) DE3861861D1 (fr)
ES (1) ES2003078B3 (fr)
GR (2) GR880300126T1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4412433B4 (de) * 1994-04-12 2006-01-19 Michael Hörauf Maschinenfabrik GmbH & Co KG Vorrichtung zum Transportieren von Garn mit einem Wickelmast
JP2905431B2 (ja) * 1995-09-07 1999-06-14 三ツ星ベルト株式会社 コードディップ処理機
US20070095006A1 (en) * 2005-11-01 2007-05-03 Konersmann Ronald D Lightweight portable concrete enclosure and associated method of construction
US7832250B2 (en) * 2008-04-18 2010-11-16 L&P Property Management Company Method and apparatus for automating production of sinuous springs
AT507423B1 (de) * 2009-03-25 2010-05-15 Ebner Ind Ofenbau Verfahren zum vorwärmen von glühgut in einer haubenglühanlage
CN112126770B (zh) * 2020-10-16 2022-02-01 江西远桥电磁线科技协同创新有限公司 一种铜线退火装置

Family Cites Families (20)

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Publication number Priority date Publication date Assignee Title
US1315835A (en) * 1919-09-09 Habby hepwobth
DE595364C (de) * 1932-12-28 1934-04-13 Kuhne G M B H Waermofen mit innen angeordneter drehbarer Trommel
DE675130C (de) * 1936-12-31 1939-04-29 Siemens Schuckertwerke Akt Ges Durchziehofen mit Waermeaustausch fuer Draehte oder schmale Baender
US2622860A (en) * 1949-05-10 1952-12-23 United States Steel Corp Apparatus for continuously processing strands
US2965368A (en) * 1953-08-14 1960-12-20 Vaughn Machinery Co Wire treating apparatus
DE1270587B (de) * 1957-09-06 1968-06-20 Syncro Machine Company Eine Ge Vorrichtung zum Waermebehandeln von Draht
GB844238A (en) * 1957-09-06 1960-08-10 Syncro Mach Co Improvements in a device for heat-treating wire
GB969192A (en) * 1959-09-26 1964-09-09 Somerset Wire Company Ltd A new or improved method of processing wire
US3325620A (en) * 1963-02-07 1967-06-13 Temescal Metallurgical Corp Furnace
BE678073A (fr) * 1964-03-11
US3422241A (en) * 1966-05-03 1969-01-14 Walco Electric Co Wheel construction for a brushless wire preheater
GB1288767A (fr) * 1969-04-21 1972-09-13
US3842643A (en) * 1970-11-25 1974-10-22 J Large Processing of wires
DE2533288A1 (de) * 1975-07-25 1977-02-17 Roth Gmbh & Co Kg Maschf Einrichtung zum gluehen von kontinuierlich laufendem metalldraht durch strombeaufschlagung des drahtes
BE847707A (nl) * 1975-11-06 1977-02-14 Doorlopend gloeien van metaaldraden,
BR7700312A (pt) * 1976-01-19 1977-09-20 Melfo Dispositivo para o recozimento direto de fio metalico a saida de uma maquina operadora
US4620884A (en) * 1979-07-24 1986-11-04 Samuel Strapping Systems Ltd. Heat treat process and furnace
JPS6044378B2 (ja) * 1980-12-05 1985-10-03 三菱電機株式会社 線材の連続焼なまし装置
US4364728A (en) * 1981-05-19 1982-12-21 The Electric Furnace Company Continuous strip preheat furnace and method of operation
US4421304A (en) * 1981-12-12 1983-12-20 Southwire Company Apparatus for controlled temperature accumulator for elongated materials

Also Published As

Publication number Publication date
GR3001606T3 (en) 1992-11-23
ES2003078A4 (es) 1988-10-16
JPS63199827A (ja) 1988-08-18
DE3861861D1 (de) 1991-04-11
ATA8387A (de) 1989-04-15
GR880300126T1 (en) 1988-12-16
US4860999A (en) 1989-08-29
EP0277109A1 (fr) 1988-08-03
ES2003078B3 (es) 1991-11-01
AT389323B (de) 1989-11-27

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