EP1078994A2 - Procédé et dispositif pour la fabrication de fil fin - Google Patents

Procédé et dispositif pour la fabrication de fil fin Download PDF

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Publication number
EP1078994A2
EP1078994A2 EP00116541A EP00116541A EP1078994A2 EP 1078994 A2 EP1078994 A2 EP 1078994A2 EP 00116541 A EP00116541 A EP 00116541A EP 00116541 A EP00116541 A EP 00116541A EP 1078994 A2 EP1078994 A2 EP 1078994A2
Authority
EP
European Patent Office
Prior art keywords
wire
furnace
chamber
cooling device
temperature
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Withdrawn
Application number
EP00116541A
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German (de)
English (en)
Other versions
EP1078994A3 (fr
Inventor
Ralph A. Graf
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.)
Graf und Cie AG
Original Assignee
Graf und Cie 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 Graf und Cie AG filed Critical Graf und Cie AG
Publication of EP1078994A2 publication Critical patent/EP1078994A2/fr
Publication of EP1078994A3 publication Critical patent/EP1078994A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C9/00—Cooling, heating or lubricating drawing material
    • 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
    • C21D9/567—Continuous furnaces for strip or wire with heating in fluidised beds
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/34—Methods of heating
    • 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
    • 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
    • C21D9/64—Patenting furnaces

Definitions

  • the invention relates to a method for producing Fine wire, especially scratch wire, where one may already be treated, in particular drawn wire starting material puts a heat treatment process in a drawable state, then pulled and then to get predetermined mechanical Is rewarded for executing such properties
  • Method usable device, an oven device and a cooling device of such a device where one may already be treated, in particular drawn wire starting material puts a heat treatment process in a drawable state, then pulled and then to get predetermined mechanical Is rewarded for executing such properties
  • the mechanical Properties of the scratch wire over the entire length the sawtooth wire strip drawn on the cover also because of that, are kept at a consistently high level because local defects of the scratch wire to damage the resulting formed sawtooth wire all-steel set, which require a full exchange. That is with modern high-performance cards with regard to the associated Machine downtimes and the material required for this associated with very high costs.
  • they have a helical shape wires wound on the cylindrical drum and the total length of the sawtooth wire strips drawn on the covers with modern high-performance cards a length of several hundred meters up. Therefore, when performing a method for the production of scratch wire ensured be that the mechanical properties thus obtained about remain constant over the entire length of several hundred meters.
  • a known method is explained below, with which Fine wires can be produced that meet these requirements enough:
  • wire rod is produced and pulled to the limit of elongation.
  • the drawn one thus obtained wire generally does not have a sufficiently small amount Cross-sectional area in a direction perpendicular to its longitudinal direction running cutting planes. So that's the first Wire starting material obtained usually is one Undergone heat treatment process, with which there is again a structural structure receives that the wire can be further processed, i.e. pullable.
  • this will be Wire starting material in the known methods first heated a temperature in the range of 800 to 1000 ° C, in the a structural transformation of the steel used as wire material into the austenitic structure takes place. Then the The wire is then quenched to a temperature in the range of 400 to 600 ° C and for a predetermined time at that temperature held. This is done using steel as the material for the fine or scratch wire, a structural transformation into the pearlitic structure due to its very good cold forming properties is characterized. After completing this conversion the wire is cooled back to room temperature and one to maintain the specified mechanical properties serving remuneration.
  • conductive and inductive heating processes can be used become.
  • conductive and inductive Warming usable furnaces are heated up the temperature from 800 to 1000 ° C, however, generally in electrical or gas-heated furnaces made from the wire stock in corresponding tubes penetrating the ovens be run through.
  • Such furnaces have the additional advantage that the temperature of the wire section passing through the furnace can be kept constant better than with one conductive or inductive wire heating, which is positive the uniformity of the austenitic iron to be obtained in this furnace Structure affects.
  • the turbulent free-flowing material is usually an undesirable one Oxide layer on the wire starting material, though partly due to the abrasive effect of the usually pourable Material used sand is removed again, but then remains in the vortex chamber.
  • These so-called Scale particles have a negative effect on the quenching behavior off, so that a regular cleaning or a regular Exchange of free-flowing material is necessary.
  • this method must also be based on the wire starting material remaining oxide particles, the so-called Residual scale, chemically removed from the wire or stripped.
  • pickling plant used to remove both when using the lead bath as even when using a fluidized bed on the wire base material remaining foreign material, i.e. also as a scale layer designated oxide layer, and depending on the used Process of additional lead residues is common a so-called pickling plant used. This usually exists essentially from the usually with hydrochloric acid or Pickling tank filled with sulfuric acid and several afterwards from the Wire starting material, cascaded one after the other switched sink and one arranged behind it Drying facility.
  • the staggered wire is made using a conventional drawing process drawn to get the desired wire shape. After that the scratch wires also need to get more specified mechanical properties are compensated.
  • Remuneration is used in particular to: As much strength as possible for the wires that have already been drawn to achieve good toughness and elongation values at the same time.
  • a continuous remuneration system is usually used for this purpose used, in which the drawn wire is initially used for preservation an austenitic structure to a temperature between 800 and heated to 1000 ° C, then to obtain a martensitic transformation deterred, then to form excretions the martensitic structure to a temperature in the range of 400 to 600 ° C heated and finally to a temperature of cooled below 60 ° C.
  • the aim of deterrence is to be as complete as possible martensitic transformation of the structure. This is usually done with oil used as a quenching medium. To ensure the desired mechanical properties of the scraper wire must form an oxide layer or scaling of the wire be avoided. For this reason, the quench zone closes the known remuneration systems airtight to the Austentisierofen on. Other quenching media have been tried use as oil or indirect quenching use with gas or water. However, none could be satisfactory Uniformity and Fineness of the martensite structure can be achieved.
  • the heating of the Wire to a temperature in the range of 400 to 600 ° C in the next stage of the remuneration process for the formation of excretions from the martensitic obtained in the quenching stage Structure is also called tempering and the required one Furnace device called tempering furnace.
  • the structure consists of a ferritic matrix with excreta stored in it. This warming can also indirectly in electric or gas operated ovens respectively.
  • the wires are the same as in the previous one Heating at a temperature of 800 to 1000 ° C in Pipes are also used to avoid oxidation Shielding gas, usually nitrogen, are purged. This one too Compensation level must be maintained to maintain consistent mechanical Properties over the entire length of the wire a very good temperature stability be ensured.
  • the final cooling of the wire to a temperature of 60 ° C or less is usually done indirectly in Pipes that are washed by water.
  • the invention has for its object a development of the above state the method described according to the prior art, with the mechanical one ensuring the same Properties of a scratch wire thus obtained Investment costs for the operable to carry out this method Plant lowered and at the same time the amount of at Execution of the process of polluting substances can be reduced, as well as a device for performing this method, an oven device and a cooling device to provide for this device.
  • this task is accomplished by a further development of the known method for the production of Fine wire, especially scratch wire, solved that essentially is characterized in that the drawn wire for tempering at least one previously to perform the heat treatment process used furnace and / or cooling device goes through.
  • the method according to the invention can then already be used Advantage can be used if only one of the to execute the Heat treatment process required system parts, i.e. the first Furnace device, the first cooling device, the second Furnace device or the second cooling device also for tempering is used.
  • the device to be used for the method is achieved if the wire for tempering both the first furnace device and also the first cooling device and the second furnace device, as well as the second cooling device.
  • the wire for tempering is initially on a Temperature heated from about 800 to 1000 ° C and then about Room temperature is quenched. This can also be done during the Heat treatment process for heating the wire raw material first furnace device used at 800 to 1000 ° C and the first cooling device to be converted is used become.
  • the wire usually to a fourth predetermined temperature of about 400 to 600 ° C heated and then to room temperature or a slightly higher temperature of less than 100 ° C, preferably cooled to about 60 ° C.
  • the second furnace device and the second Cooling device can be used.
  • the temperature in the corresponding furnace devices over the total length of the wire section received in the furnace is kept constant.
  • the wire in the first and / or second furnace device one of corresponding channels and if necessary, pass through flow tubes arranged therein, for example cuboid heat distribution block.
  • On such heat distribution block can be with a much higher Mass run than the commonly used Pipes and therefore has very good heat storage properties, with which temperature fluctuations are buffered in the furnace device can be, so that they the wire temperature or No longer influence the wire temperature curve inside the furnace.
  • the use of one of the wire enables passed heat distribution blocks ensuring one constant temperature distribution the use of gas burner heated Furnaces with very small furnace chambers because of the Gas burners also cause local temperature peaks in a small furnace chamber due to the relatively high mass of the heat distribution block can be distributed evenly and no longer up to those passing through the heat distribution block Wires.
  • a furnace device according to the invention is evident to perform this procedure with at least one designed to hold at least one wire section, heatable furnace chamber essentially characterized in that in the Furnace chamber in the area of the wire to be arranged in it uniform heating of the absorbed in the furnace chamber Arranged wire section designed heat distribution block is.
  • the oven chamber expediently has at least a wire inlet and at least one separate wire outlet and can be operated continuously.
  • the heat distribution block of at least one of the Wire section or a tube that surrounds this with a precise fit Channel is penetrated.
  • the embodiment of the invention is the furnace device according to the invention for the simultaneous heating of a large number of wire sections designed, the heat distribution block from a Large number of parallel and one each Wire section receiving channels is interspersed. It can the heating of those passing through the heat distribution block Wire sections by heating the heat distribution block from the outside, preferably with at least one furnace chamber delimiting wall penetrating gas burner.
  • Such a furnace device can cause scaling of the wire section to be heated in the furnace chamber and the Deposition of combustion products on the wire surface can be prevented if at least one of the to accommodate the Channels serving wire sections to the heated environment of the heat distribution block in the heating chamber gas-tight is completed and preferably with an inert gas, such as such as nitrogen.
  • the Heat distribution block at least partially made of a semiconductor material exists because this is in the relevant temperature range from 400 to 1000 ° C a good heat capacity and satisfactory Has heat conduction properties and at the same time is light in weight. It turned out to be special Proven useful when silicon carbide as a semiconductor material is used because this is particularly low Weight has particularly good thermal properties.
  • the first and / or the second cooling device has a swirl chamber with at least a layer of swirled, free-flowing material, such as Sand, which pass through the wire for cooling becomes.
  • free-flowing material such as Sand
  • an inert gas for swirling allows of the free-flowing material in the swirl chamber too yet another significant reduction in the quantities used in wire production otherwise occurring polluting substances, because it prevents scale particles from forming, otherwise a frequent exchange of the free-flowing material make necessary.
  • the operation opens up an inert gas for swirling the free flowing material in the vertebral chamber also the possibility to the otherwise Preparation of the with the heat treatment process in the drawable Condition of staggered wire, pickling line required, complete to do without because the wire cools down at the second temperature, no oxide layer on the wire surfaces is formed. This will cause a further reduction the resultant when carrying out the method according to the invention environmentally harmful substances achieved because the conventional processes in the pickling plant are no longer needed.
  • the swirl chamber can Use of an inert gas to swirl the free-flowing material also as a deterrent in the course of the remuneration process be used, because of the quality reasons in the course scaling to be avoided during the remuneration process of the wire is safely excluded. That way a further reduction in the amount of when performing the Environmentally harmful substances occurring according to the method of the invention achieved because that would otherwise quench the wire Oil no longer needed during the tempering process becomes.
  • a particularly preferred embodiment of the invention will one and the same vortex chamber both during the to maintain the heat-treatment process that can be drawn, as well as used in the compensation process.
  • the free-flowing material when using the vortex chamber to cool the free-flowing Material in the course of the heat treatment process to the second predetermined temperature is heated, which is usually at is about 400 to 600 ° C.
  • the electromagnetic waves can, for example in the form of heat radiation from one in the swirl chamber arranged and preferably penetrating this radiated heating tube become.
  • This embodiment of the invention provides the Advantage that in addition to the warming by the Radiator also emits electromagnetic waves Heating of the free-flowing material by an immediate one Contact with the heating tube can take place if the heating tube in the Area of the layer of the swirled free-flowing material is arranged.
  • the heating tube can be heated electrically, for example will. To maintain a particularly high efficiency However, it turned out to be particularly favorable if the heating tube is designed as a hollow tube and from the inside with a gas burner is heated, the pipe interior compared to the rest of the Whirl chamber is separated gastight.
  • the free-flowing material also with electromagnetic waves in the form of in the heating chamber emitted microwaves are heated.
  • an element used to generate the microwaves corresponding microwave radiation device such as a Klystron arranged in the region of a wall delimiting the vortex chamber be so that additional heating of the free-flowing Material through the generation of microwaves waste heat is reached. Through this heat exchange cooling of the microwave generating element takes place at the same time.
  • Cooling device a device for performing of the method according to the invention are provided at their use to carry out the heat treatment process and no environmentally harmful substances are used in the remuneration process will or arise. It can be both in the execution the heat treatment process as well as the execution of the tempering process a conventional second cooling device for cooling the from the second furnace device leaking wire can be used in the wire in tubes is performed, which is washed for indirect cooling of water become.
  • Fig. 1a is a continuously operable according to the invention Device shown schematically.
  • This device essentially comprises a first furnace device 10, a first cooling device 20, a second furnace device 30 and a second cooler 40 in that order in the direction of passage indicated by the arrows P both in the execution of the to maintain the ductile structure to be performed heat treatment process as well as in the Obtaining the desired mechanical properties, i.e. the high Strength with good toughness and elongation performed compensation process.
  • the wires passed through during the heat treatment process Temperature profile is shown in Fig. 1b). After that the wires are first connected to the first furnace device 10 heated to a temperature of about 900 ° C, then with the first cooling device 20 cooled to a temperature of about 500 ° C. and kept at this temperature with the second furnace device 30, to finally get on with the second cooling device 40 To be cooled to room temperature.
  • the temperature profile of the wires is shown in Fig. 1c.
  • the wires in the tempering process first with the first furnace device 10 heated to about 900 ° C, then with the first cooling device 20 cooled to about room temperature, then with the second Furnace device 30 to a temperature of about 500 ° C. finally heated with the second cooling device 40 back to room temperature or just above it Temperature of about 60 ° C to be cooled.
  • FIG. 2 is a both for realizing the first Furnace 10 as well as for the realization of the second Furnace device 30 insertable furnace 100 shown.
  • This Furnace 100 includes one of heat-insulating furnace walls 110, 120, 130 and 140 confined furnace chamber 150 in which is made of silicon carbide manufactured heat distribution block 160 is arranged.
  • This Heat distribution block 160 is substantially cuboid and rests at a distance from the floor 130 on support elements 162, so that he from an outer annular region 170 of the furnace chamber 150 is surrounded.
  • the cuboidal silicon carbide block 160 has a plurality of him in the arrow P in Fig. 1 Passage through channels 164, of which each is designed to hold a wire section.
  • FIG. 3 is one for realizing the first cooling device 20 of the invention shown in Fig. 1a Cooling device which can be used in the form of a fluidized bed 200 shown.
  • This fluidized bed 200 comprises one of a heat-insulating wall 212 and delimited by the Arrow P in Fig. 1 designated direction traversed by the wires Vortex chamber 210.
  • In the bottom area of the vortex chamber 210 is an arrangement for introducing an inert gas into the swirl chamber appropriate. With the inert gas introduced in this way, a free-flowing material contained in the vortex chamber, such as Sand is swirled so that there is a fluid-like fluidized bed forms, which are traversed by the wires to be cooled becomes.
  • the inert gas so introduced into the swirl chamber 210 as Nitrogen, an inert gas or the like, becomes from the swirl chamber 210 derived and returned to the introduction arrangement 220.
  • the vortex chamber is located above the inlet arrangement 220 210 of one perpendicular to the direction of flow of the Wires extending heater tube 240 penetrates.
  • This heating tube 240 is designed as a hollow tube and contains in its interior a gas burner 242, the interior of the heating tube 240 from Rest of the vortex chamber 210 is separated gas-tight.
  • the exhaust gases from the gas burner are Suction device 242 aspirated and derived.
  • the invention is not explained on the basis of the drawing Embodiment limited. Rather, the free-flowing Material in the swirl chamber 210 also by irradiation are heated by microwaves, a corresponding Microwave generating element, such as a klystron in the area a side wall of the swirl chamber 210 may be arranged to thus also contributing to the heating of the free-flowing material and on the other hand cooled by the free-flowing material to become. It is also contemplated that the invention Adjust the device so that of those shown in Fig. 1 Run through different temperature profiles if, for example, high-alloy steels are used as the material can be used for the wires to be manufactured. Finally can the furnace devices 10 and 30 of the device shown in FIG. 1 can also be dimensioned differently.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Metal Extraction Processes (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Furnace Details (AREA)
EP00116541A 1999-08-27 2000-07-31 Procédé et dispositif pour la fabrication de fil fin Withdrawn EP1078994A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19940845 1999-08-27
DE19940845A DE19940845C1 (de) 1999-08-27 1999-08-27 Verfahren und Vorrichtung zum Herstellen von Feindraht

Publications (2)

Publication Number Publication Date
EP1078994A2 true EP1078994A2 (fr) 2001-02-28
EP1078994A3 EP1078994A3 (fr) 2003-05-28

Family

ID=7919901

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00116541A Withdrawn EP1078994A3 (fr) 1999-08-27 2000-07-31 Procédé et dispositif pour la fabrication de fil fin

Country Status (12)

Country Link
US (2) US6416707B1 (fr)
EP (1) EP1078994A3 (fr)
JP (1) JP2001172724A (fr)
KR (1) KR20010021442A (fr)
CN (1) CN1234884C (fr)
AR (1) AR025347A1 (fr)
BR (1) BR0003802A (fr)
CA (1) CA2316669A1 (fr)
DE (1) DE19940845C1 (fr)
MX (1) MXPA00008398A (fr)
TR (1) TR200002516A2 (fr)
TW (1) TW524854B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1728878A3 (fr) * 2005-06-03 2008-07-09 Graf + Cie Ag Procédé et dispositif de durcissement de garnitures de cardage en dent de scie et tout-acier, ainsi que de fil à dent de scie
WO2015197150A1 (fr) * 2014-06-24 2015-12-30 TRüTZSCHLER GMBH & CO. KG Procédé de durcissement d'un fil de garniture pour le traitement de fibres textiles et installation associée
CN113319138A (zh) * 2021-06-04 2021-08-31 重庆星达铜业有限公司 一种铜线拉丝装置

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KR101054162B1 (ko) * 2008-12-12 2011-08-03 경희대학교 산학협력단 마이크로파를 이용한 와이어 인발장치
ES2365462B1 (es) * 2010-03-24 2012-08-10 Automat Industrial S.L. Procedimiento y dispositivo para el patentado de alambre por transferencia de calor por radiación-convección.
EP3597802B1 (fr) 2014-05-09 2023-12-20 Groz-Beckert KG Garniture de carde faite de bandes métalliques et son procédé de fabrication
CN106834626B (zh) * 2017-03-23 2019-01-29 湖南省中晟热能科技有限公司 一种微波钢带炉
WO2019239186A1 (fr) 2018-06-13 2019-12-19 Arcelormittal Installation de dépôt sous vide et procédé de revêtement d'un substrat
WO2019239184A1 (fr) 2018-06-13 2019-12-19 Arcelormittal Installation de dépôt sous vide et procédé de revêtement d'un substrat
WO2020012221A1 (fr) * 2018-07-11 2020-01-16 Arcelormittal Procédé de transfert de chaleur et dispositif associé
WO2020012222A1 (fr) * 2018-07-11 2020-01-16 Arcelormittal Procédé de commande du refroidissement d'un produit métallique
CN109457104B (zh) * 2018-12-13 2020-09-01 陕西鼎益科技有限公司 一种高温合金丝在线退火自动化加工装置
KR102219253B1 (ko) * 2020-05-14 2021-02-24 엄지은 저온초전도선재의 제조 장치

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FR2607519B1 (fr) * 1986-11-27 1989-02-17 Michelin & Cie Procede et dispositif pour traiter thermiquement un fil d'acier
FR2626290B1 (fr) * 1988-01-25 1990-06-01 Michelin & Cie Procedes et dispositifs permettant de traiter thermiquement des fils d'acier au carbone de facon a obtenir une structure perlitique fine
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1728878A3 (fr) * 2005-06-03 2008-07-09 Graf + Cie Ag Procédé et dispositif de durcissement de garnitures de cardage en dent de scie et tout-acier, ainsi que de fil à dent de scie
WO2015197150A1 (fr) * 2014-06-24 2015-12-30 TRüTZSCHLER GMBH & CO. KG Procédé de durcissement d'un fil de garniture pour le traitement de fibres textiles et installation associée
CN106460086A (zh) * 2014-06-24 2017-02-22 特吕茨施勒有限及两合公司 用于使加工纺织纤维用的针布钢丝硬化的方法和为此的设备
US10344347B2 (en) 2014-06-24 2019-07-09 Truetzschler Gmbh & Co. Kg Method of hardening a clothing wire for processing textile fibres, and apparatus system therefor
CN113319138A (zh) * 2021-06-04 2021-08-31 重庆星达铜业有限公司 一种铜线拉丝装置
CN113319138B (zh) * 2021-06-04 2022-11-18 重庆星达铜业有限公司 一种铜线拉丝装置

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Publication number Publication date
AR025347A1 (es) 2002-11-20
US6494973B2 (en) 2002-12-17
DE19940845C1 (de) 2000-12-21
MXPA00008398A (es) 2002-04-24
CA2316669A1 (fr) 2001-02-27
CN1234884C (zh) 2006-01-04
TR200002516A2 (tr) 2002-03-21
CN1291658A (zh) 2001-04-18
JP2001172724A (ja) 2001-06-26
KR20010021442A (ko) 2001-03-15
BR0003802A (pt) 2001-04-03
US6416707B1 (en) 2002-07-09
US20020026968A1 (en) 2002-03-07
EP1078994A3 (fr) 2003-05-28
TW524854B (en) 2003-03-21

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