RU2014115200A - METHOD FOR PRODUCING SHEET FROM TEXTURED ELECTRICAL STEEL WITH EXCELLENT PROPERTIES OF LOSS IN IRON - Google Patents

METHOD FOR PRODUCING SHEET FROM TEXTURED ELECTRICAL STEEL WITH EXCELLENT PROPERTIES OF LOSS IN IRON Download PDF

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RU2014115200A
RU2014115200A RU2014115200/02A RU2014115200A RU2014115200A RU 2014115200 A RU2014115200 A RU 2014115200A RU 2014115200/02 A RU2014115200/02 A RU 2014115200/02A RU 2014115200 A RU2014115200 A RU 2014115200A RU 2014115200 A RU2014115200 A RU 2014115200A
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temperature
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Юкихиро СИНГАКИ
Макото ВАТАНАБЭ
Кунихиро СЕНДА
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ДжФЕ СТИЛ КОРПОРЕЙШН
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    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • 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
    • C21D8/1272—Final recrystallisation annealing
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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    • C22C38/00—Ferrous alloys, e.g. steel alloys
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    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
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    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
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    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/16—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of sheets
    • 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
    • C21D2201/00—Treatment for obtaining particular effects
    • C21D2201/05—Grain orientation
    • 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
    • C21D8/1216—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
    • C21D8/1233—Cold 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
    • C21D8/1266—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 between cold rolling steps

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
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  • Manufacturing & Machinery (AREA)
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Abstract

1. Способ изготовления листа из текстурированной электротехнической стали, который включает ряд стадий горячей прокатки стального сляба химического состава C: 0,001~0,10% масс., Si: 1,0~5,0% масс., Mn: 0,01~0,5% масс., Al раств.: 0,003~0,050% масс., N: 0,0010~0,020% масс., один или два элемента, выбранных из S и Se: 0,005~0,040% масс. в сумме, и остальное Fe и неизбежные примеси, при необходимости проведение отжига в зоне горячих состояний полученного листа, проведение однократной, двукратной или многократной холодной прокатки с промежуточным отжигом между ними для формирования холоднокатаного листа окончательной толщины, проведение отжига первичной рекристаллизации, нанесение отжигового сепаратора и проведение окончательного отжига, характеризующийся тем, что в процессе нагрева в отжиге первичной рекристаллизации скорость S1 нагрева от температуры Т1 до температуры Т2, которые определяются следующими уравнениями (1) и (2):устанавливают равной не менее 80°C/сек, и в среднюю скорость S2 нагрева от температуры Т2 до 750°C устанавливают равной от 0,1 до 0,7 от S1, где в уравнениях (1) и (2) NA представляет количество выделенного N (ppm по массе) после окончательной холодной прокатки и NB представляет количество выделенного N (ppm по массе) после отжига первичной рекристаллизации.2. Способ по п.1, в котором общее содержание N в стальном слябе NB′ (ppm по массе) используется вместо количества выделенного N после отжига первичной рекристаллизации NB (ppm по массе).3. Способ по п.1 или 2, характеризующийся тем, что стальной сляб дополнительно включает один или несколько элементов, выбранных из Cu: 0,01~0,2% масс., Ni: 0,01~0,5% масс., Cr: 0,01~0,5% масс., Mo: 0,01~0,5% масс., Sb: 0,01~0,1% масс., Sn: 0,01~0,5% масс., Bi: 0,001~0,1% масс., P: 0,001. A method for manufacturing a grain oriented electrical steel sheet, which includes a series of steps of hot rolling a steel slab with the chemical composition of C: 0.001~0.10 mass%, Si: 1.0~5.0 mass%, Mn: 0.01~0.01~ 0.5% mass, Al solution: 0.003~0.050% mass, N: 0.0010~0.020% mass, one or two elements selected from S and Se: 0.005~0.040% mass. in total, and the rest of Fe and unavoidable impurities, if necessary, conducting annealing in the zone of hot states of the obtained sheet, performing single, double or multiple cold rolling with intermediate annealing between them to form a cold-rolled sheet of final thickness, conducting primary recrystallization annealing, applying an annealing separator, and carrying out the final annealing, characterized in that during the heating process in the primary recrystallization annealing, the heating rate S1 from the temperature T1 to the temperature T2, which are determined by the following equations (1) and (2): the heating rate S2 from temperature T2 to 750°C is set to 0.1 to 0.7 of S1, where in equations (1) and (2) NA represents the amount of N recovered (ppm by mass) after the final cold rolling and NB represents amount of released N (ppm by mass) after primary recrystallization annealing.2. The method of claim 1, wherein the total N content of the NB' steel slab (ppm by mass) is used instead of the amount of N recovered after the NB primary recrystallization annealing (ppm by mass). Method according to claim 1 or 2, characterized in that the steel slab further comprises one or more elements selected from Cu: 0.01~0.2 mass%, Ni: 0.01~0.5 mass%, Cr : 0.01~0.5% mass, Mo: 0.01~0.5% mass, Sb: 0.01~0.1% mass, Sn: 0.01~0.5% mass. , Bi: 0.001~0.1 wt%, P: 0.00

Claims (3)

1. Способ изготовления листа из текстурированной электротехнической стали, который включает ряд стадий горячей прокатки стального сляба химического состава C: 0,001~0,10% масс., Si: 1,0~5,0% масс., Mn: 0,01~0,5% масс., Al раств.: 0,003~0,050% масс., N: 0,0010~0,020% масс., один или два элемента, выбранных из S и Se: 0,005~0,040% масс. в сумме, и остальное Fe и неизбежные примеси, при необходимости проведение отжига в зоне горячих состояний полученного листа, проведение однократной, двукратной или многократной холодной прокатки с промежуточным отжигом между ними для формирования холоднокатаного листа окончательной толщины, проведение отжига первичной рекристаллизации, нанесение отжигового сепаратора и проведение окончательного отжига, характеризующийся тем, что в процессе нагрева в отжиге первичной рекристаллизации скорость S1 нагрева от температуры Т1 до температуры Т2, которые определяются следующими уравнениями (1) и (2):1. A method of manufacturing a sheet of textured electrical steel, which includes a number of stages of hot rolling of a steel slab with a chemical composition C: 0.001 ~ 0.10% wt., Si: 1.0 ~ 5.0% wt., Mn: 0.01 ~ 0.5% wt., Al solution: 0.003 ~ 0.050 wt%, N: 0.0010 ~ 0.020 wt%, one or two elements selected from S and Se: 0.005 ~ 0.040 wt%. in total, the rest of Fe and inevitable impurities, if necessary, annealing in the hot zone of the obtained sheet, conducting single, double or multiple cold rolling with intermediate annealing between them to form a cold-rolled sheet of final thickness, annealing primary recrystallization, applying an annealing separator and the final annealing, characterized in that during heating in the annealing of the primary recrystallization, the heating rate S1 from temperature T1 to temperature ry T2, which are defined by the following equations (1) and (2):
Figure 00000001
Figure 00000001
Figure 00000002
Figure 00000002
 устанавливают равной не менее 80°C/сек, и в среднюю скорость S2 нагрева от температуры Т2 до 750°C устанавливают равной от 0,1 до 0,7 от S1, где в уравнениях (1) и (2) NA представляет количество выделенного N (ppm по массе) после окончательной холодной прокатки и NB представляет количество выделенного N (ppm по массе) после отжига первичной рекристаллизации.set equal to at least 80 ° C / s, and in the average heating rate S2 from temperature T2 to 750 ° C set equal to 0.1 to 0.7 from S1, where in equations (1) and (2) NA represents the amount allocated N (ppm by mass) after the final cold rolling and NB represents the amount of N (ppm by mass) allocated after annealing the primary recrystallization. 2. Способ по п.1, в котором общее содержание N в стальном слябе NB′ (ppm по массе) используется вместо количества выделенного N после отжига первичной рекристаллизации NB (ppm по массе).2. The method according to claim 1, in which the total N content in the steel slab NB ′ (ppm by mass) is used instead of the amount of N released after annealing the primary recrystallization NB (ppm by mass). 3. Способ по п.1 или 2, характеризующийся тем, что стальной сляб дополнительно включает один или несколько элементов, выбранных из Cu: 0,01~0,2% масс., Ni: 0,01~0,5% масс., Cr: 0,01~0,5% масс., Mo: 0,01~0,5% масс., Sb: 0,01~0,1% масс., Sn: 0,01~0,5% масс., Bi: 0,001~0,1% масс., P: 0,001~0,05% масс., Ti: 0,005~0,02% масс. и Nb: 0,0005~0,0100% масс. 3. The method according to claim 1 or 2, characterized in that the steel slab further comprises one or more elements selected from Cu: 0.01 ~ 0.2% by weight, Ni: 0.01 ~ 0.5% by weight. , Cr: 0.01 ~ 0.5% by mass, Mo: 0.01 ~ 0.5% by mass, Sb: 0.01 ~ 0.1% by mass, Sn: 0.01 ~ 0.5% mass., Bi: 0.001 ~ 0.1% mass., P: 0.001 ~ 0.05% mass., Ti: 0.005 ~ 0.02% mass. and Nb: 0.0005 ~ 0.0100% by weight.
RU2014115200/02A 2011-09-16 2012-09-14 Method of plate manufacturing out of textured electric steel with superior iron losses RU2572947C2 (en)

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PCT/JP2012/073608 WO2013039193A1 (en) 2011-09-16 2012-09-14 Process for producing grain-oriented electromagnetic steel sheet with excellent core loss characteristics

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