EP1812609A1 - Procede et dispositif de façonnage a proximite de la cale-etalon de produits de depart en forme de fils et de barres et profile plat ainsi obtenu - Google Patents

Procede et dispositif de façonnage a proximite de la cale-etalon de produits de depart en forme de fils et de barres et profile plat ainsi obtenu

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Publication number
EP1812609A1
EP1812609A1 EP05789611A EP05789611A EP1812609A1 EP 1812609 A1 EP1812609 A1 EP 1812609A1 EP 05789611 A EP05789611 A EP 05789611A EP 05789611 A EP05789611 A EP 05789611A EP 1812609 A1 EP1812609 A1 EP 1812609A1
Authority
EP
European Patent Office
Prior art keywords
rolling
starting material
temperature
cooling
heating
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.)
Granted
Application number
EP05789611A
Other languages
German (de)
English (en)
Other versions
EP1812609B1 (fr
Inventor
Hans-Toni Junius
Heinz HÖFINGHOFF
Norbert BRACHTHÄUSER
Victor Blinov
Rudolf Kawalla
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.)
C D Waelzholz GmbH
Original Assignee
CD Waelzholz Brockhaus GmbH
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 CD Waelzholz Brockhaus GmbH filed Critical CD Waelzholz Brockhaus GmbH
Publication of EP1812609A1 publication Critical patent/EP1812609A1/fr
Application granted granted Critical
Publication of EP1812609B1 publication Critical patent/EP1812609B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • C21D8/065—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires of ferrous alloys
    • 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
    • B21B1/16—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/166—Rolling wire into sections or flat ribbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/004—Heating the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0224—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for wire, rods, rounds, bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/023—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes by immersion in a bath
    • 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
    • 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
    • C21D9/573—Continuous furnaces for strip or wire with cooling
    • C21D9/5732—Continuous furnaces for strip or wire with cooling of wires; of rods
    • 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
    • B21B1/16—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/18—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/004—Heating the product
    • B21B2045/006—Heating the product in vacuum or in inert atmosphere
    • 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
    • C21D9/62—Continuous furnaces for strip or wire with direct resistance heating

Definitions

  • the present invention relates to a method for near-end deformation of wire and rod-shaped starting material according to the preamble of claim 1, a device suitable for carrying out the method according to claim 26 and to a flat profile produced according to the method according to claim 38.
  • flat profiles can be carried out in various ways, depending on the required material properties, the dimensions of the flat profiles to be produced and the intended use of the flat profiles.
  • flat profiles are usually understood profile shapes in which the width of the cross section is not greater than 10-20 times the thickness.
  • Such flat profiles are used for functional components and often wear parts in technical equipment, e.g. used for springs or the like. Components in the automotive, aircraft and space industry, in equipment construction and agricultural machinery.
  • flat profiles are used as starting material e.g. used for the production of saws, saw blades, bushing chains for motorcycles and bicycles, rollers, rolling bearings, ski edges or also for piston rings.
  • these flat profiles are mechanically highly loaded components, whose strength properties are of key importance in addition to compliance with required cross-sectional shapes and dimensions.
  • the object of the present invention is therefore to provide a method for near net deformation of wire and rod-shaped starting material, which combines the advantages of thermoforming of wire and rod-shaped starting material with compliance with the process parameters relevant to the material characteristics process, thereby producing a variety of different, but nevertheless allows very consistent ein ⁇ adjustable material and workpieces properties.
  • the invention according to claim 1 is based on a process for the rolling technical deformation of wire and rod-shaped starting material, in particular for rolling flat profiles made of wire rod, in which the heating of the starting material takes place in a heating station to a desired temperature, the starting material in - A -
  • a der ⁇ like generic method is further developed in that after the heating of the starting material in the heating station, the starting material cooled in adesta ⁇ tion to a rolling temperature, at this rolling temperature near-net-formed into a flat profile and then cooled according foundedstel ⁇ lender structural properties and / or after-treatment.
  • the heating of the primary material in the heating station is at a temperature above the A 3 temperature of the ⁇ mixed crystal (austenite).
  • a 3 temperature of the ⁇ mixed crystal austenite
  • an extremely different microstructure can be produced from an austenitized microstructure as initial structure prior to the rolling of the primary material, which structures can be used to produce the various materials required for the typical applications of the flat profiles. correspond to properties of the steel material and thus enable a wide field of application according to manufactured Flachprofiie.
  • Another embodiment of the method according to the invention provides that the heating of the starting material in the heating station to a temperature in the region of the ⁇ / ⁇ mixed crystal (ferrite / austenite) takes place.
  • a temperature in the region of the ⁇ / ⁇ mixed crystal ferrite / austenite
  • round wire or oval wire is used as the preliminary material.
  • round wire is meant in this context not only wire with a circular cross-section, e.g. can be made by rolling or drawing technology, but generally wire any cross-section, which is suitable for deformation by rolling technical means towards a flat profile.
  • Corresponding Ovaldrähte here have an oval cross-section.
  • the free expansion of the round wire or oval wire is generally utilized in a rolling process in order to cause on the one hand demanded property changes with regard to the geometry of the flat profile and on the other hand to produce the required microstructural properties and thus the material properties of the finished flat profile.
  • Such round wire or oval wire is a commercially available starting material and can be obtained commercially in a variety of compositions and alloys, whereby the costs for such round wire or oval wire are relatively low.
  • the round wire or oval wire runs through the process as a windable prematerial.
  • a quasi-continuous processing of the round wire or oval wire usually supplied on rings is possible, which can also be further processed as a wound-up coil of the finished flat profile as a windable finishing material.
  • the round wire or oval wire as rod-like Vor ⁇ material passes through the process, the bar-like starting material accordingly also rod-like flat profiles results.
  • unalloyed or low-alloyed carbon steels are used as the starting material.
  • Such unalloyed or low-alloyed carbon steels form the starting material for the production of many different components and components and offer a wide range of application areas for the use of flat profiles produced according to the invention.
  • the heating of the starting material takes place in the heating station to a temperature above the A 3 point.
  • a temperature of the starting material is clearly in the range of austenite for the steels usually used in this case, so that the austenitizing processes occurring in the structure form the basis for a number of customary changes in the material properties with regard to the material properties of the flat profiles to be achieved.
  • a first embodiment of the method according to the invention can be seen therein, when the cooling in the cooling station cools the starting material before rolling to a temperature for setting an austenite microstructure only slightly above the A 3 temperature of about 800 ° C.
  • the rolling process itself is still carried out in the form of the austenite of the microstructure of the starting material as austenitic structure, whereby correspondingly simple diffusion processes can take place and the influencing of the intended microstructural changes can be carried out in a controlled manner.
  • a further embodiment of the method according to the invention can be seen therein when the cooling in the cooling station cools the starting material before rolling to a temperature for setting a bainite structure, eg for a steel C75 between 275-37O 0 C.
  • the starting material is still cooled in contrast to the setting of a PatentiergeHoges until the rolling of the starting material is carried out in a structural state of the intermediate bainite in which due to the low temperature diffusion processes are largely prevented and by folding over austenite in the material ⁇ - grid areas form. This is then precipitated by fine-grained cementite with the advantageous effects for the microstructural properties.
  • heat may have to be removed from the rolling zone with regard to the forming work introduced into the starting material and the resulting temperature change of the starting material, for example at high degrees of deformation or, for example, at low deformations of the starting material
  • heat may have to be removed from the rolling zone with regard to the forming work introduced into the starting material and the resulting temperature change of the starting material, for example at high degrees of deformation or, for example, at low deformations of the starting material
  • by tempering the rollers at the desired temperature by hillszu ⁇ be kept.
  • the starting material after the forming by means of rolling, is subjected to the end-dimensional flat profile of further cooling, in particular rapid cooling.
  • the material which is already present as a flat profile may be e.g. a water cooling or the like.
  • Well-known cooling methods are subjected.
  • the rapid cooling cools the rolled flat profile at least below the temperature limit for the course of oxidation processes on the surface of the flat profile and thus ensures that Verzond- rungsvor réelle or the like. No more or no longer can proceed to an improper extent.
  • Derarti ⁇ ge tempered metal baths are basically known and tested and offer the ability to target and accurately tempering continuous metal bands and also to keep at a predetermined temperature to run appropriate Aus ⁇ equal operations without the surfaces of the metal bands of unacceptable oxidation get abandoned.
  • the material for cooling the pre-material after passing through the heating station remains in the temperature-controlled metal bath for a predeterminable time, in particular the temperature. Run through metal bath a predetermined time to run the already mentioned compensating processes for controlling the temperature of the entire cross section of the starting material.
  • An improvement in the surface of the flat profile can be achieved if the heating of the starting material is carried out under inert gas. As a result, oxidation processes occurring during the heating of the primary material are prevented, which of course then do not propagate through the entire process control and thus can not cause any later dimensional deviations or surface defects.
  • a comparison device for temperature compensation within the heated starting material is passed through between the heating station and the cooling station, wherein in a further embodiment the comparison of the temperature within the heated starting material is carried out after passing through the heating station under protective gas influence can be.
  • the invention further relates to a device for carrying out a method according to claim 1, in which the device in the direction of passage of the starting material, a winding / withdrawal device for unwinding the aufwi ⁇ ckelbaren starting material or a feed device for the rod-shaped Vormate ⁇ Rial, a heating station, a cooling station for setting a rolling temperature, a rolling station, a cooling section and a winding / withdrawal device for winding the windable flat profile or a discharge device for the rod-shaped flat profile.
  • This basic configuration of the device makes it possible to carry out the basic process variants in which, after heating, a targeted cooling of the starting material to a temperature is carried out, which comprises rolling the starting material with a structure either as an austenitic structure, as a patented structure, as a bainite structure or as a supercooled austenite allows.
  • a targeted cooling of the starting material to a temperature which comprises rolling the starting material with a structure either as an austenitic structure, as a patented structure, as a bainite structure or as a supercooled austenite allows.
  • the corresponding Microstructure can be adjusted depending on the gradient of the cooling and the cooling time.
  • Further aftertreatments or intermediate operations can be carried out by interposing or connecting additional accessory device components such as, for example, heat treatment processes such as tempering or tempering processes such as holding the starting material at a specific temperature over a defined period of time To be able to run off compensation processes within the material.
  • the rolling station has at least one rolling device, preferably several rolling devices connected in series. As a result, careful shaping of the starting material during rolling can be achieved by targeted design and even sequential arrangement of several rolling devices.
  • a temperature monitoring for detecting the temperature of the starting material before / and / or after rolling is arranged, with the e.g. with respect to the microstructure, detected impermissible temperature changes during rolling, and e.g. can be turned off zen by tempering the Wal ⁇ by targeted heat input into the rollers.
  • conductive heating of the primary material permits well controllable heating and thus structural transformation of the primary material.
  • a particularly favorable cooling of the starting material can be realized if the cooling station has a tempered metal bath to set a rolling temperature.
  • a tempered such as a metal bath of a lead-bismuth alloy
  • the tempered metal bath is arranged before and / or after the rolling station.
  • the heating temperature in the heating station can be rolled out directly from the austenite phase, with appropriate tuning of the heating temperature, so that the metal bath can then be tempered
  • the metal bath is used for targeted cooling of the starting material to the rolling temperature and must of course then be placed in front of the rolling station.
  • the temperature-controlled metal bath can have a wiper and / or deflection device, via which the starting material is guided in the tempered metal bath during the dwell time.
  • the winding or Umlenkein ⁇ direction can also take over buffer function for downstream device stations.
  • a further conductive heating station is provided for heating the flat profile for post-rolling annealing, in which e.g. the heating can take place again under inert gas influence. It is also possible, for example, to provide a further cooling section for cooling the flat profile within the scope of a tempering subsequent to rolling.
  • the invention further beschreiebt according to claim 38, a flat profile, produced 5 by the method according to claim 1.
  • a flat profile advantageously has a substantially rectangular cross-section or a rectangular cross-section, a variety of configurations of the edge region can be adjusted depending on the subsequent use of the flat profile.
  • typical carbon steels in particular o carbon steels having a carbon content of between 0.10 and 1.35%, in particular also C 10 to Ck 101/125 Cr1, are processable as starting material.
  • Such flat profiles are preferably in dimensions between a thickness of 0.5 - 5 mm and a width of 4 - 25 mm processable.
  • FIG. 1 shows a schematic representation of the basic structure of a device for carrying out a method for hot rolling of rolled wires with the most important device components
  • FIG. 2 shows a continuous time-temperature conversion diagram for carrying out the method according to FIG. 1,
  • FIG. 3 shows a schematic representation of the basic structure of a device according to claim 26 for carrying out the method according to the invention with a cooling of the starting material before rolling for the production of patented structure, bainite structure or a supercooled austenite structure, FIG.
  • FIG. 4 shows an isothermal time-temperature conversion diagram for carrying out the method according to FIG. 3 with the indication of the respective process control for the production of patented structure, bainite structure or a supercooled austenite structure,
  • FIG. 5 shows a modified device according to FIG. 3 for the heat treatment of a supercooled austenite microstructure after rolling
  • FIG. 6 shows a modified device according to FIG. 3 for the post-rolling heat treatment of an austenitic structure without a cooling device before rolling
  • FIG. 7 shows a modified device according to FIG. 3 with a cooling device in front of the rolling station and devices for heat treatment carried out after rolling
  • FIG. 6 shows a modified device according to FIG. 7 with a cooling device downstream of the rolling station and devices for heat treatment carried out after rolling.
  • FIG. 1 shows, in a very schematic representation, the structure of a device for carrying out a method for hot rolling of wire rod into flat sections. This is a device for carrying out a process without special means for cooling the starting material before rolling.
  • a flat profile 18 is to be understood as meaning steel material whose width corresponds to a maximum of 10 to 20 times its thickness and which usually serves as a constructive basis for mainly mechanically loaded components such as springs, piston rings or the like as well as saw blades or other highly stressed components Workpieces use.
  • the dimensions of such flat profiles in contrast to otherwise produced rolled strip rather low and is typically 5 in the range of up to 30 millimeters in width and 5 millimeters in thickness.
  • the starting material 17 is usually supplied as a round wire rod of the system 1, but may of course have other cross sections as a starting material for rolling in a rolling device 7.
  • the pre-material 17 is conveyed in Appendix 1 by a reel with a coil outlet 2 o via a caterpillar take-off 3 and a straightening device 4 in a device 5 for conductive heating of the starting material 17, wherein the conductive Ein ⁇ direction 5 current-carrying contact rollers 16 which over the Coupling of the current in the starting material 17 along the conductive device 5 cause an Er ⁇ heating of the starting material 17.
  • This heating takes place predominantly in a protective gas channel 6, which prevents the formation of oxidation products on the surface of the primary material 17 during the heating.
  • a duct-like duct 12 which may also be flooded with protective gas, is provided as a compensation zone, within which the prematerial 17 uniformly heats up in the interior area by means of balancing processes and thus prevents it from entering the rolling device 7 has set a uniform temperature curve within the preliminary material 17.
  • the temperature of the starting material 17 drops from the final temperature of, for example, during the heat treatment between the contact rollers 16. B. 1020 ° Celsius to a lower temperature, so that within the compensation zone 12, a cooling of the starting material 17 to a temperature eg just above the Aß temperature occurs.
  • the starting material 17 enters the rolling device 7 and is shown there in one or more passes (simplified is only one roll ⁇ device 7, but it can also be several such rolling devices 7 are connected in series) rolled to the flat profile 18, which then cooled by means of a cooling section 9 with here, for example, two blast chillers 10 and via a Rau ⁇ penabzug 3 a reel 11 and abandoned there is wound into a coil.
  • the starting material 17 thus passes through the installation 1 in the direction of passage 19 and is supplied to the installation 1 as a wound coil, for example a round wire rod, and wound up as a coil of a flat profile 18.
  • Such a rolling line 1 carries out a method that according to the figure 2 in a representation in a continuous time-temperature conversion diagram for a steel C 75 illustrated for the production of bainite according to the Temperatur ⁇ leadership along the line 13 runs.
  • the starting material 17 is rolled at a temperature of just below 800 ° C and then cooled along the line 13.
  • the resulting sorbitol structure provides the corresponding properties of the flat profile 18 produced in this way.
  • a disadvantage of this method is that the temperature of the preliminary material 17 can be controlled relatively costly by cooling only in the compensation zone 12; in addition, the temperature can be controlled Do not reduce to values that would be useful for other procedures.
  • the heating in the conductive device 5 can be carried out in two or more stages, with a number of contact rollers 16 are arranged one behind the other, so o that the heating multi-stage, possibly even using under Kunststoffe ⁇ ner currents and thus different temperature gradients in the Ermér ⁇ determination made can be.
  • the metal bath 14 has for the passage of the starting material 17 a Wickelvorrich ⁇ device 15 in the form of rolls of z. B. a meter diameter, on the o Vormaterial 17 is wrapped several times and thus remains within a predetermined time within the metal bath 14 while passing through the metal bath 14.
  • the metal bath 14 is tempered in such a way that the desired starting temperature for the rolling of the primary material 17 in the rolling device 7 is set within the material 17 and thus precisely within the primary material 17 the structure can form Rolling is required within the rolling device 7 for achieving the subsequent final structure.
  • protective gas channels 6 are arranged before and after the metal bath, so that the starting material 17 is almost completely heated and tempered under a protective gas atmosphere becomes.
  • the flat profile 18 is cooled by a water cooler or the like via a high-speed cooler 10 and wound up as already described for FIG.
  • FIG. 4 shows various conceivable processes along the line 13 ' , 13 ", 13 '" in an isothermal time-temperature conversion diagram for a steel C 75, which shows the different final structures of the flat profile 18 to be set after rolling in the rolling device 7 specify. If, for example, the temperature of the primary material within the cooling device 14 is reduced to about 500 ° C. and then rolled, then a so-called patenting structure can be set for this steel according to line 13 ' , which results in a particularly high toughness high tensile strength values possible.
  • cooling in the cooling device 14 is continued in the cooling device 14 to values of approximately 350 ° C.
  • a so-called interstep structure in the form of a bainite structure according to line 13 " results during rolling
  • a particularly interesting option for producing flat profiles 18 is cooling in the cooling device 14 to be carried out so fast that according to the line 13 '" comes in the range below 300 degrees Celsius of the supercooled austenite for rolling in the rolling device 7 and then can perform a martensite hardening of this supercooled Austenites by appropriate treatment.
  • FIG. 5 A modification of the system described in FIG. 3 for the rolling of undercooled austenite as the structure of the starting material 18 is shown in FIG. 5, in which, as far as rolling in the rolling device 7, what was stated for FIG. 3 applies as above.
  • a further conductive device 5 ' is arranged, which serves to re-heat the flat profile 18 for a compensation of the microstructure of the flat profile 18, likewise being heated conductively again and in a subsequent Quick cooling 10 cooled becomes. This makes it possible to achieve a broad control of the properties of the precursor material 17 rolled as a supercooled austenite.
  • FIG. 6 shows a further modification of the system 1 in which, according to line 3 in FIG. 4, rolling takes place without a separate cooling device and only after a certain cooling in the compensation zone 12 and thus rolling in the rolling device 7 in the austenite region of the structure of the starting material 17 originally ⁇ leads.
  • This Flach ⁇ profile 18 thus rolled and cooled in the cooling device 10 is then tempered by Vergüteope ⁇ rations in a conductive device 5 ' as described above for Figure 5 and thus changed once again in its properties.
  • FIGS. 7 and 8 two variants of the system 1 according to FIG. 5 are shown once again, in which the cooling device 14 is arranged once before and once after the roller device 7, so that the temperature control of the material 17 in the area of the roller device 7 specifically, for example, after Wai- zen in the rolling device 7 by tempering the resulting flat profile 18 can be further changed.
  • the cooling device 14 according to FIG. 8 can serve, for example, for correspondingly slow or targeted tempering of the flat profile 18 after rolling in order to supply the structure of the flat profile 18 after rolling to a targeted change, without directly performing too rapid cooling of the flat profile 18.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

La présente invention concerne un procédé de façonnage par une technique de laminage de produits de départ (17) en forme de fils et barres, notamment de laminage de profilés plats (18) à partir de fils laminés. Dans une station de chauffage (5), la matière de départ (17) est chauffée à une température souhaitée, cette matière de départ (17) étant façonnée dans au moins une opération de laminage (7) puis refroidie. Selon l'invention, après chauffage de la matière de départ (17) dans une station de chauffage (5), cette matière de départ (17) est refroidie dans une station de refroidissement (14) à une température prédéterminée. Et à cette température de laminage, la matière de départ est façonnée en profilé plat (18) par une technique de laminage à proximité de la cale-étalon puis refroidie et/ou retraitée conformément à des propriétés de constitution à régler. Ainsi une installation permet une série de conduites de procédés différentes pour laminer la matière de départ avec une structure brevetée, une structure d'austénite, une structure de bainite ou une structure d'austénite surrefroidie.
EP05789611.0A 2004-10-02 2005-09-13 Procede et dispositif de façonnage a proximite de la taille finale de produits de depart en forme de fils et de barres Active EP1812609B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004048443A DE102004048443B3 (de) 2004-10-02 2004-10-02 Verfahren zur walztechnischen Verformung von draht- und stabförmigem Vormaterial, Vorrichtung zur Durchführung des Verfahrens sowie nach dem Verfahren hergestelltes Flachprofil
PCT/DE2005/001599 WO2006050680A1 (fr) 2004-10-02 2005-09-13 Procede et dispositif de façonnage a proximite de la cale-etalon de produits de depart en forme de fils et de barres et profile plat ainsi obtenu

Publications (2)

Publication Number Publication Date
EP1812609A1 true EP1812609A1 (fr) 2007-08-01
EP1812609B1 EP1812609B1 (fr) 2017-03-01

Family

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EP05789611.0A Active EP1812609B1 (fr) 2004-10-02 2005-09-13 Procede et dispositif de façonnage a proximite de la taille finale de produits de depart en forme de fils et de barres

Country Status (7)

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US (1) US20080006350A1 (fr)
EP (1) EP1812609B1 (fr)
BR (1) BRPI0516301A (fr)
CA (1) CA2582731A1 (fr)
DE (2) DE102004048443B3 (fr)
MX (1) MX2007003830A (fr)
WO (1) WO2006050680A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008010062A1 (de) * 2007-06-22 2008-12-24 Sms Demag Ag Verfahren zum Warmwalzen und zur Wärmebehandlung eines Bandes aus Stahl
US9169528B2 (en) * 2008-04-30 2015-10-27 Nv Bekaert Sa Steel filament patented in bismuth
IT1391760B1 (it) * 2008-11-11 2012-01-27 Danieli Off Mecc Processo di trattamento termico di laminati
JP6405577B2 (ja) * 2013-03-26 2018-10-17 株式会社八尾金網製作所 金網用の平線および金網
DE102013005734B4 (de) * 2013-04-05 2016-05-04 Sms Group Gmbh Anlage und Verfahren zur Herstellung metallischer länglicher Halbzeuge
DE102013012118A1 (de) * 2013-07-18 2015-01-22 C.D. Wälzholz GmbH Kaltgewalztes Schmalband in Form von Flachdraht oder Profilen aus einem hochfesten Stahl für den Einsatz in flexiblen Rohren, insbesondere in flexiblen Rohren für Offshore-Anwendungen sowie Verfahren zur Herstellung derartiger kaltgewalzter Schmalbänder
CN112725608B (zh) * 2020-12-28 2022-04-12 合肥市远大轴承锻造有限公司 一种轴承套圈热处理装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT256006B (de) * 1961-11-25 1967-08-10 Moossche Eisenwerke Ag Verfahren zum Auswalzen von Profilen mittels Kaliberwalzen
DE2602656C2 (de) * 1975-01-29 1986-09-11 Centre de Recherches Métallurgiques - Centrum voor Research in de Metallurgie - Association sans but lucratif - Vereniging zonder winstoogmerk, Brüssel/Bruxelles Verfahren zur Herstellung von Walzstahl für Bewehrungszwecke
JPS5792137A (en) * 1980-11-29 1982-06-08 Daido Steel Co Ltd Heat treatment of steel wire rod
DE3518925A1 (de) * 1985-05-25 1986-11-27 Kocks Technik Gmbh & Co, 4010 Hilden Verfahren zum kontrollierten stab- und drahtwalzen legierter staehle
GB8600533D0 (en) * 1986-01-10 1986-02-19 Bekaert Sa Nv Manufacturing pearlitic steel wire
AT393361B (de) * 1987-10-29 1991-10-10 Boehler Gmbh Verfahren und Vorrichtung zur Erzeugung dünner Drähte, Stäbe, Rohre und Profile aus Stählen und Legierungen mit geringem Formänderungsverm¦gen, insbes. aus härtbaren Stählen.
DE4207298A1 (de) * 1992-03-07 1993-09-09 Schloemann Siemag Ag Verfahren und walzwerk zum praezisionswalzen von draht bzw. von walzgut mit rundquerschnitt
EP0925494B1 (fr) * 1996-09-04 2001-12-19 Scandinavian Micro Biodevices A/S Systeme a microdebit pour separation et analyse de particules
DE19962801A1 (de) * 1999-12-23 2001-06-28 Sms Demag Ag Verfahren zum Wärmebehandeln von Draht
DE10031028B4 (de) * 2000-06-26 2008-09-04 Gnothis Holding Sa Verfahren zur Selektion von Partikeln

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006050680A1 *

Also Published As

Publication number Publication date
BRPI0516301A (pt) 2008-09-02
MX2007003830A (es) 2007-04-20
EP1812609B1 (fr) 2017-03-01
WO2006050680A1 (fr) 2006-05-18
CA2582731A1 (en) 2006-05-18
DE112005003068A5 (de) 2007-09-13
DE102004048443B3 (de) 2005-12-01
US20080006350A1 (en) 2008-01-10

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