EP4200456A1 - Procédé de traitement d'une tôle d'acier - Google Patents

Procédé de traitement d'une tôle d'acier

Info

Publication number
EP4200456A1
EP4200456A1 EP21769632.7A EP21769632A EP4200456A1 EP 4200456 A1 EP4200456 A1 EP 4200456A1 EP 21769632 A EP21769632 A EP 21769632A EP 4200456 A1 EP4200456 A1 EP 4200456A1
Authority
EP
European Patent Office
Prior art keywords
steel sheet
surface treatment
carried out
heating
treatment
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.)
Pending
Application number
EP21769632.7A
Other languages
German (de)
English (en)
Inventor
Christian DORFBAUER
Marius KREUZEDER
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.)
Nanoneal Technologies GmbH
Original Assignee
Nanoneal Technologies 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 Nanoneal Technologies GmbH filed Critical Nanoneal Technologies GmbH
Publication of EP4200456A1 publication Critical patent/EP4200456A1/fr
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • 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
    • C21D1/26—Methods of annealing
    • C21D1/28—Normalising
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/022—Cleaning travelling work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/041—Cleaning travelling work
    • 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
    • B21B45/04—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 de-scaling, e.g. by brushing
    • B21B45/06—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 de-scaling, e.g. by brushing of strip material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
    • B24C1/086—Descaling; Removing coating films
    • 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
    • C21D1/26—Methods of annealing
    • 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
    • C21D1/26—Methods of annealing
    • C21D1/32—Soft annealing, e.g. spheroidising
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1216—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the working step(s) being of interest
    • C21D8/1222—Hot rolling
    • 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
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
    • 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
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
    • C21D8/1261—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest following hot rolling
    • 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
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1277—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a particular surface treatment
    • 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
    • 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
    • C21D11/00—Process control or regulation for heat treatments
    • 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
    • C21D9/561—Continuous furnaces for strip or wire with a controlled atmosphere or vacuum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon

Definitions

  • the invention relates to a method for processing a silicon-containing, hot-rolled steel sheet to produce an electrical strip.
  • Steel sheets made of iron-silicon alloys with a high silicon content, in particular with a silicon content of more than 1.5% by weight, are of great interest for a large number of electrotechnical or electromagnetic applications.
  • Steel sheets of this type usually referred to as electrical sheet or electrical strip, have a higher saturation magnetization in combination with higher electrical resistance values and therefore offer the advantage of lower magnetic losses, particularly in applications at higher frequencies.
  • Such electrical steels represent an important basis for the construction of highly efficient electrical machines.
  • the strips are wound into rolls, so-called coils.
  • intermediate stations are provided in the manufacturing plants provided for this purpose, in which the rolls are unwound and the ends of the rolls delivered one after the other are welded together.
  • the continuous strips are cut and rewound into rolls.
  • the object of the invention is to create a method for processing a silicon-containing, hot-rolled steel sheet to produce an electrical strip, by means of which improved uniformity of the surfaces and the optical appearance of the electrical strip can be achieved.
  • the object of the invention is achieved by a method for processing a silicon-containing, hot-rolled steel sheet to produce an electrical strip, the steel sheet containing more than 1.5% by weight silicon, with a surface treatment in a device for removing oxide layers from a surface of the steel sheet and with a thermal treatment, the surface treatment to remove the oxide layers being carried out mechanically without chemical descaling, and the thermal treatment of the cleaned steel sheet being carried out after the surface treatment in a hot-wall annealing plant under a protective gas atmosphere.
  • the process has proven to be particularly environmentally friendly, since the surface descaling is carried out without the use of chemical substances.
  • the application of the method proves to be advantageous in particular for the processing of sheet steel or steel strips with a silicon content of more than 1.5% by weight, in particular for steel strips with a silicon content of between 2% and 4%.
  • the mechanical surface treatment is advantageously carried out with a granular material, particles of the granular material being accelerated and shot onto the surface of the steel sheet.
  • the mechanical surface treatment is carried out with a suspension in the method, the granular materials being slurried in a liquid.
  • the development of dust, which occurs when sandblasting can be avoided.
  • the use of particles with a smaller grain size of the granular material is also possible.
  • the mechanical surface treatment comprises a treatment by shot peening, which is carried out before the surface treatment with the granular material.
  • the mechanical surface treatment and the thermal treatment are carried out in a continuous process, the strip speed of the steel sheet being the same in the area of the mechanical surface treatment and in the area of the thermal treatment.
  • the hot strip annealing plant comprises a heating area, a holding area and a cooling area, with the steel sheet being heated to a maximum temperature in a range from 800° C. to 1130° C. in the heating area during a heating phase.
  • the heating is advantageously carried out at a heating rate of 2° C./s to 15° C./s.
  • the steel sheet in the holding area is held at the maximum temperature in a holding phase lasting 15 s to 180 s, preferably 45 s to 120 s.
  • the speed of movement of the steel sheet is controlled as a function of a heat output of the hot strip annealing plant.
  • the speed of the movement of the steel sheet is calculated based on a mathematical-physical calculation model of the hot strip annealing plant.
  • a protective gas atmosphere consisting of hydrogen and/or nitrogen is provided in the hot strip annealing plant.
  • Hydrogen is preferably provided in the protective gas atmosphere in a proportion of 50% to 100%, in particular in a proportion of 80% to 100%.
  • the steel sheet is moved in a vertical conveying direction in the hot strip annealing plant.
  • the method is particularly suitable for sheet steel with a thickness value of 0.5 mm to 3.0 mm, preferably with a value of 0.6 mm to 2.8 mm.
  • FIG. 1 shows an apparatus for processing a siliceous, hot-rolled steel sheet
  • FIG. 3 shows a second exemplary embodiment of an apparatus for processing a siliceous, hot-rolled steel sheet
  • FIG 4 shows the time course of the temperature of the steel sheet during the thermal treatment according to an alternative embodiment.
  • the steel sheet 2 processed in the device 1 is a hot-rolled steel sheet with a thickness in the range from 0.5 mm to 3 mm, the intermediate product obtained being suitable or prepared for subsequent cold rolling.
  • the steel sheet 2 is moved in a continuous sequence through a plurality of processing stations of the device 1 arranged one behind the other.
  • the device 1 comprises a device for surface treatment 3 and a device for thermal treatment 4 as central processing stations.
  • the mechanical surface treatment is followed by a thermal treatment of the cleaned steel sheet 2 in the hot strip annealing plant 4 using a protective gas atmosphere.
  • the protective gas atmosphere contains hydrogen and nitrogen, with a proportion of 50% to 100% hydrogen being provided. A proportion of 80% to 100% hydrogen is preferably provided in the protective gas atmosphere. It is of particular advantage if the inert gas atmosphere is as low as possible Rest of water vapor is included.
  • water vapor is present in the protective gas atmosphere with a proportion that corresponds to a dew point of -70 °C to -20 °C. This can prevent a renewed formation of oxide layers on the surface of the steel sheet 2 during the heat treatment of the steel sheet 2 in the hot strip annealing plant 4 at the high temperatures prevailing there with the oxygen of the water molecules.
  • the steel sheet 2 is moved, inter alia, through a measuring station 7, where the grain size in the steel sheet 2 is measured.
  • the formation of the desired crystalline structure in the steel sheet 2 can be monitored by measuring the grain size in the measuring station 7 .
  • the information obtained about the quality of the steel sheet 2 achieved by the treatment also serves as a basis for controlling the processing sequence in the device 1.
  • a second band store 9 is provided on the output side.
  • the post-processing station 8 is here again representative of several individual stations or post-processing and control work on the steel sheet 2, which is finally cut back into partial strips and wound up into corresponding rolls. This also includes, for example, trimming the edges of the steel sheet 2, checking for defects and passivating the surface of the steel sheet 2 by applying an anti-corrosion agent, such as oil.
  • a control device 10 is provided for carrying out the method for processing the steel sheet 2 .
  • the control is carried out in particular in such a way that the processing in the device for surface treatment 3 and in the device for thermal treatment 4 takes place in a continuous process, with the speed of movement of the steel sheet 2 at least in the area of the devices 3, 4 for mechanical surface treatment and for thermal treatment is the same.
  • the control device 10 regulates the speed of the steel sheet 2 depending on the heating power Hot strip annealing plant 4.
  • the processing in the surface treatment device 3, ie the intensity of the removal of the oxide layers, is consequently set by the control device 10 as a function of the predetermined strip speed of the steel sheet 2.
  • a furnace with a vertical main conveying direction is used as the hot strip annealing system 4 .
  • the steel sheet 2 comes into contact as little as possible, in particular the hot steel sheet 2 as little as possible not at all, with rollers that would otherwise be required for its guidance. Any damage to the surface of the steel sheet 2, for example as a result of the formation of grooves on the surface thereof when support rollers roll off, can thus be prevented.
  • FIG. 3 shows a further embodiment of the device 1, which may be independent of itself, with the same reference numerals or component designations as in the preceding FIGS. 1, 2 being used again for the same parts.
  • reference numerals or component designations as in the preceding FIGS. 1, 2 being used again for the same parts.
  • the steel sheet 2 has the same belt speed at least in the area over the shot peening device 15, the device for surface treatment 3 and the device for thermal treatment 4 extending area of the device 1.
  • the steel sheet 2 running through this area in the form of an endless strip is finally cut up again in the post-processing station 8 with the interposition of the strip store 9 and wound up on rolls.
  • a higher surface roughness of the strip (for the steel sheet 2) can be achieved.
  • This higher surface roughness enables increased strip temperature absorption and improved strip emissivity, which means that the heated furnace length can be reduced if necessary.
  • the surface roughness (mean roughness value Ra according to DIN EN ISO 4287:2010) can be between 2 ⁇ m and 8 ⁇ m, in particular between 2.5 ⁇ m and 4 ⁇ m.
  • the controlled mechanical descaling with the method according to the invention can be improved if a particle detection system (camera system) is used, with which the quantity of particles thrown onto the strip and/or their speed (more or faster particles are e.g. on the strip edge area than on the middle of the strip) is controlled or monitored.
  • a particle detection system camera system
  • the (optical) unevenness of the surface is dragged along in the subsequent cold rolling process and can then have a negative effect in the final annealing step on the annealing and coating line.
  • the different thermal radiation absorption of the strip surface across the strip width can lead to increased strip elongation at the strip edges compared to the center of the strip and manifest itself as edge waviness.
  • the magnetic and mechanical properties for the darker edge areas with higher thermal radiation absorption are often different from those for the middle of the strip. With the method of the invention, these darker and lighter areas can be avoided across the bandwidth. This leads to very homogeneous mechanical, magnetic and geometric properties over the entire material unit in the final downstream annealing of the end product on the annealing and coating line after a cold rolling process compared to conventional manufacturing routes.
  • the strip can be further cleaned after mechanical descaling using several pairs of brushes and several rinsing sections with water in a strip cleaning system.
  • the tape can then be dried.
  • This cleaning can remove residual oxides and lubricants on the surface.
  • This cleaning s step is can also be carried out with a lye as a cleaning agent or an electrolytic belt cleaning. This cleaning can prevent contamination of the atmosphere in the furnace by evaporation of the lubricant or growth of oxides on the transport rollers by the "loose" residual oxides on the belt in the furnace and thus quality problems (e.g. indentations) during heat treatment.

Landscapes

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

Abstract

L'invention concerne un procédé de traitement d'une tôle d'acier laminée à chaud contenant du silicium pour produire un ruban électrique, la tôle d'acier (2) contenant plus de 1,5 parties en poids de silicium, comprenant un traitement de surface pour éliminer des couches d'oxyde et un traitement thermique, le traitement de surface pour éliminer les couches d'oxyde étant effectué mécaniquement sans décalaminage chimique, et le traitement thermique étant effectué après le traitement de surface dans une installation de recuit de ruban chaud sous atmosphère de gaz protecteur.
EP21769632.7A 2020-08-20 2021-08-18 Procédé de traitement d'une tôle d'acier Pending EP4200456A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50702/2020A AT524149B1 (de) 2020-08-20 2020-08-20 Verfahren zur Bearbeitung eines Stahlblechs
PCT/AT2021/060287 WO2022036381A1 (fr) 2020-08-20 2021-08-18 Procédé de traitement d'une tôle d'acier

Publications (1)

Publication Number Publication Date
EP4200456A1 true EP4200456A1 (fr) 2023-06-28

Family

ID=77738891

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21769632.7A Pending EP4200456A1 (fr) 2020-08-20 2021-08-18 Procédé de traitement d'une tôle d'acier

Country Status (5)

Country Link
US (1) US20230304120A1 (fr)
EP (1) EP4200456A1 (fr)
CN (1) CN115956009A (fr)
AT (1) AT524149B1 (fr)
WO (1) WO2022036381A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI810000B (zh) * 2022-07-29 2023-07-21 中國鋼鐵股份有限公司 用於鋼帶連續退火製程之自動溫控方法及電腦程式產品

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10220282C1 (de) * 2002-05-07 2003-11-27 Thyssenkrupp Electrical Steel Ebg Gmbh Verfahren zum Herstellen von kaltgewalztem Stahlband mit Si-Gehalten von mindestens 3,2 Gew.-% für elektromagnetische Anwendungen
KR101220608B1 (ko) * 2010-06-09 2013-01-10 주식회사 포스코 스케일 제거장치
EP2862673B1 (fr) * 2013-10-16 2016-03-09 Centre De Recherches Metallurgiques ASBL - Centrum Voor Research In De Metallurgie vzw Procédé et installation de décalaminage mécanique à haute température
JP6748375B2 (ja) * 2016-10-19 2020-09-02 Ｊｆｅスチール株式会社 Ｓｉ含有熱延鋼板の脱スケール方法
CN107245647B (zh) * 2017-06-01 2018-10-16 东北大学 一种基于薄带连铸制备发达{100}面织构无取向硅钢薄带的方法
CN110438317A (zh) * 2019-07-29 2019-11-12 江苏理工学院 一种初始组织热轧法制备{100}织构柱状晶无取向电工钢的方法

Also Published As

Publication number Publication date
AT524149B1 (de) 2022-11-15
CN115956009A (zh) 2023-04-11
WO2022036381A1 (fr) 2022-02-24
US20230304120A1 (en) 2023-09-28
AT524149A1 (de) 2022-03-15

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