NON-ORIENTED ELECRICAL STEEL SHEET AND METHOD OF MANUFACTURING THE SAME

본 발명은 중량%로, 탄소(C): 0% 초과 0.002% 이하, 실리콘(Si): 2.3% 이상 2.8% 이하, 망간(Mn): 0.2% 이상 0.28% 이하, 알루미늄(Al): 0.32% 이상 0.45% 이하, 인(P): 0% 초과 0.015% 이하, 황(S): 0% 초과 0.002% 이하, 질소(N): 0% 초과 0.002% 이하, 티타늄(Ti): 0% 초과 0.002% 이하, 잔부의 철(Fe) 및 불가피한 불순물을 포함하는 슬라브를 준비하는 단계; 상기 슬라브를 열간 압연하여 열연판을 형성하는 단계; 상기 열연판을 예비 소둔하여...

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Hauptverfasser: KANG CHUN KU, CHO HAN HYUK
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CHO HAN HYUK
description 본 발명은 중량%로, 탄소(C): 0% 초과 0.002% 이하, 실리콘(Si): 2.3% 이상 2.8% 이하, 망간(Mn): 0.2% 이상 0.28% 이하, 알루미늄(Al): 0.32% 이상 0.45% 이하, 인(P): 0% 초과 0.015% 이하, 황(S): 0% 초과 0.002% 이하, 질소(N): 0% 초과 0.002% 이하, 티타늄(Ti): 0% 초과 0.002% 이하, 잔부의 철(Fe) 및 불가피한 불순물을 포함하는 슬라브를 준비하는 단계; 상기 슬라브를 열간 압연하여 열연판을 형성하는 단계; 상기 열연판을 예비 소둔하여 열연 소둔판을 형성하는 단계; 상기 열연 소둔판을 냉간 압연하여 냉연판을 형성하는 단계; 및 상기 냉연판을 냉연 소둔하여 냉연 소둔판을 형성하는 단계;를 포함하고, 상기 슬라브에 포함된 망간(Mn) 및 알루미늄(Al)은 하기 식 1을 만족하는 무방향성 전기강판의 제조 방법이 제공된다. 0.10 ≤ 1.3 x [Mn] - 0.46 x [Al] ≤ 0.18 (상기 식 1에서 [Mn] 및 [Al]은 각각 슬라브에 포함된 망간(Mn) 및 알루미늄(Al)의 중량%를 의미한다.) The present invention provides a method for manufacturing a non-oriented electrical steel sheet, comprising the steps of: preparing a slab comprising, by wt%, carbon (C) in an amount greater than 0% and less than or equal to 0.002%, 2.3-2.8% of silicon (Si), 0.2-0.28% of manganese (Mn), 0.32-0.45% of aluminum (Al), phosphorus (P) in an amount greater than 0% and less than or equal to 0.015%, sulfur (S) in an amount greater than 0% and less than or equal to 0.002%, nitrogen (N) in an amount greater than 0% and less than or equal to 0.002%, titanium (Ti) in an amount greater than 0% and less than or equal to 0.002%, and the balance of iron (Fe) and inevitable impurities; hot rolling the slab, thereby forming a hot rolled sheet; pre-annealing the hot rolled sheet, thereby forming a hot annealed sheet; cold rolling the hot annealed sheet, thereby forming a cold rolled sheet; and cold annealing the cold rolled sheet, thereby forming a cold annealed sheet, wherein Mn and Al, which are contained in the slab, satisfy relation 1 (0.10 ≤ 1.3 x [Mn] - 0.46 x [Al] ≤ 0.18).
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fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_KR20240040492A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>KR20240040492A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_KR20240040492A3</originalsourceid><addsrcrecordid>eNqNyrEKwjAQgOEuDqK-w4FzIcQsjkdyaYLNBdLrXEqJk2ihvj86-AAu_7f8-6bjzG0ukVjIAfVkS7TYwyBE3wYiAWQHiSRkB9lDQh49WhlL5A4kEAyY6Njs7vNjq6efh-bsSWxo6_qa6rbOS33W93QrWmmjlFHmqvHy3_UBY3ctEA</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>NON-ORIENTED ELECRICAL STEEL SHEET AND METHOD OF MANUFACTURING THE SAME</title><source>esp@cenet</source><creator>KANG CHUN KU ; CHO HAN HYUK</creator><creatorcontrib>KANG CHUN KU ; CHO HAN HYUK</creatorcontrib><description>본 발명은 중량%로, 탄소(C): 0% 초과 0.002% 이하, 실리콘(Si): 2.3% 이상 2.8% 이하, 망간(Mn): 0.2% 이상 0.28% 이하, 알루미늄(Al): 0.32% 이상 0.45% 이하, 인(P): 0% 초과 0.015% 이하, 황(S): 0% 초과 0.002% 이하, 질소(N): 0% 초과 0.002% 이하, 티타늄(Ti): 0% 초과 0.002% 이하, 잔부의 철(Fe) 및 불가피한 불순물을 포함하는 슬라브를 준비하는 단계; 상기 슬라브를 열간 압연하여 열연판을 형성하는 단계; 상기 열연판을 예비 소둔하여 열연 소둔판을 형성하는 단계; 상기 열연 소둔판을 냉간 압연하여 냉연판을 형성하는 단계; 및 상기 냉연판을 냉연 소둔하여 냉연 소둔판을 형성하는 단계;를 포함하고, 상기 슬라브에 포함된 망간(Mn) 및 알루미늄(Al)은 하기 식 1을 만족하는 무방향성 전기강판의 제조 방법이 제공된다. &lt;식 1&gt; 0.10 ≤ 1.3 x [Mn] - 0.46 x [Al] ≤ 0.18 (상기 식 1에서 [Mn] 및 [Al]은 각각 슬라브에 포함된 망간(Mn) 및 알루미늄(Al)의 중량%를 의미한다.) The present invention provides a method for manufacturing a non-oriented electrical steel sheet, comprising the steps of: preparing a slab comprising, by wt%, carbon (C) in an amount greater than 0% and less than or equal to 0.002%, 2.3-2.8% of silicon (Si), 0.2-0.28% of manganese (Mn), 0.32-0.45% of aluminum (Al), phosphorus (P) in an amount greater than 0% and less than or equal to 0.015%, sulfur (S) in an amount greater than 0% and less than or equal to 0.002%, nitrogen (N) in an amount greater than 0% and less than or equal to 0.002%, titanium (Ti) in an amount greater than 0% and less than or equal to 0.002%, and the balance of iron (Fe) and inevitable impurities; hot rolling the slab, thereby forming a hot rolled sheet; pre-annealing the hot rolled sheet, thereby forming a hot annealed sheet; cold rolling the hot annealed sheet, thereby forming a cold rolled sheet; and cold annealing the cold rolled sheet, thereby forming a cold annealed sheet, wherein Mn and Al, which are contained in the slab, satisfy relation 1 (0.10 ≤ 1.3 x [Mn] - 0.46 x [Al] ≤ 0.18).</description><language>eng ; kor</language><subject>ALLOYS ; BASIC ELECTRIC ELEMENTS ; CHEMISTRY ; ELECTRICITY ; FERROUS OR NON-FERROUS ALLOYS ; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS ; INDUCTANCES ; MAGNETS ; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS ; METALLURGY ; METALLURGY OF IRON ; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS ; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES ; TRANSFORMERS ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2024</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20240328&amp;DB=EPODOC&amp;CC=KR&amp;NR=20240040492A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20240328&amp;DB=EPODOC&amp;CC=KR&amp;NR=20240040492A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KANG CHUN KU</creatorcontrib><creatorcontrib>CHO HAN HYUK</creatorcontrib><title>NON-ORIENTED ELECRICAL STEEL SHEET AND METHOD OF MANUFACTURING THE SAME</title><description>본 발명은 중량%로, 탄소(C): 0% 초과 0.002% 이하, 실리콘(Si): 2.3% 이상 2.8% 이하, 망간(Mn): 0.2% 이상 0.28% 이하, 알루미늄(Al): 0.32% 이상 0.45% 이하, 인(P): 0% 초과 0.015% 이하, 황(S): 0% 초과 0.002% 이하, 질소(N): 0% 초과 0.002% 이하, 티타늄(Ti): 0% 초과 0.002% 이하, 잔부의 철(Fe) 및 불가피한 불순물을 포함하는 슬라브를 준비하는 단계; 상기 슬라브를 열간 압연하여 열연판을 형성하는 단계; 상기 열연판을 예비 소둔하여 열연 소둔판을 형성하는 단계; 상기 열연 소둔판을 냉간 압연하여 냉연판을 형성하는 단계; 및 상기 냉연판을 냉연 소둔하여 냉연 소둔판을 형성하는 단계;를 포함하고, 상기 슬라브에 포함된 망간(Mn) 및 알루미늄(Al)은 하기 식 1을 만족하는 무방향성 전기강판의 제조 방법이 제공된다. &lt;식 1&gt; 0.10 ≤ 1.3 x [Mn] - 0.46 x [Al] ≤ 0.18 (상기 식 1에서 [Mn] 및 [Al]은 각각 슬라브에 포함된 망간(Mn) 및 알루미늄(Al)의 중량%를 의미한다.) The present invention provides a method for manufacturing a non-oriented electrical steel sheet, comprising the steps of: preparing a slab comprising, by wt%, carbon (C) in an amount greater than 0% and less than or equal to 0.002%, 2.3-2.8% of silicon (Si), 0.2-0.28% of manganese (Mn), 0.32-0.45% of aluminum (Al), phosphorus (P) in an amount greater than 0% and less than or equal to 0.015%, sulfur (S) in an amount greater than 0% and less than or equal to 0.002%, nitrogen (N) in an amount greater than 0% and less than or equal to 0.002%, titanium (Ti) in an amount greater than 0% and less than or equal to 0.002%, and the balance of iron (Fe) and inevitable impurities; hot rolling the slab, thereby forming a hot rolled sheet; pre-annealing the hot rolled sheet, thereby forming a hot annealed sheet; cold rolling the hot annealed sheet, thereby forming a cold rolled sheet; and cold annealing the cold rolled sheet, thereby forming a cold annealed sheet, wherein Mn and Al, which are contained in the slab, satisfy relation 1 (0.10 ≤ 1.3 x [Mn] - 0.46 x [Al] ≤ 0.18).</description><subject>ALLOYS</subject><subject>BASIC ELECTRIC ELEMENTS</subject><subject>CHEMISTRY</subject><subject>ELECTRICITY</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</subject><subject>INDUCTANCES</subject><subject>MAGNETS</subject><subject>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</subject><subject>SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES</subject><subject>TRANSFORMERS</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2024</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNyrEKwjAQgOEuDqK-w4FzIcQsjkdyaYLNBdLrXEqJk2ihvj86-AAu_7f8-6bjzG0ukVjIAfVkS7TYwyBE3wYiAWQHiSRkB9lDQh49WhlL5A4kEAyY6Njs7vNjq6efh-bsSWxo6_qa6rbOS33W93QrWmmjlFHmqvHy3_UBY3ctEA</recordid><startdate>20240328</startdate><enddate>20240328</enddate><creator>KANG CHUN KU</creator><creator>CHO HAN HYUK</creator><scope>EVB</scope></search><sort><creationdate>20240328</creationdate><title>NON-ORIENTED ELECRICAL STEEL SHEET AND METHOD OF MANUFACTURING THE SAME</title><author>KANG CHUN KU ; CHO HAN HYUK</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_KR20240040492A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; kor</language><creationdate>2024</creationdate><topic>ALLOYS</topic><topic>BASIC ELECTRIC ELEMENTS</topic><topic>CHEMISTRY</topic><topic>ELECTRICITY</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</topic><topic>INDUCTANCES</topic><topic>MAGNETS</topic><topic>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</topic><topic>METALLURGY</topic><topic>METALLURGY OF IRON</topic><topic>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</topic><topic>SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES</topic><topic>TRANSFORMERS</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>KANG CHUN KU</creatorcontrib><creatorcontrib>CHO HAN HYUK</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KANG CHUN KU</au><au>CHO HAN HYUK</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>NON-ORIENTED ELECRICAL STEEL SHEET AND METHOD OF MANUFACTURING THE SAME</title><date>2024-03-28</date><risdate>2024</risdate><abstract>본 발명은 중량%로, 탄소(C): 0% 초과 0.002% 이하, 실리콘(Si): 2.3% 이상 2.8% 이하, 망간(Mn): 0.2% 이상 0.28% 이하, 알루미늄(Al): 0.32% 이상 0.45% 이하, 인(P): 0% 초과 0.015% 이하, 황(S): 0% 초과 0.002% 이하, 질소(N): 0% 초과 0.002% 이하, 티타늄(Ti): 0% 초과 0.002% 이하, 잔부의 철(Fe) 및 불가피한 불순물을 포함하는 슬라브를 준비하는 단계; 상기 슬라브를 열간 압연하여 열연판을 형성하는 단계; 상기 열연판을 예비 소둔하여 열연 소둔판을 형성하는 단계; 상기 열연 소둔판을 냉간 압연하여 냉연판을 형성하는 단계; 및 상기 냉연판을 냉연 소둔하여 냉연 소둔판을 형성하는 단계;를 포함하고, 상기 슬라브에 포함된 망간(Mn) 및 알루미늄(Al)은 하기 식 1을 만족하는 무방향성 전기강판의 제조 방법이 제공된다. &lt;식 1&gt; 0.10 ≤ 1.3 x [Mn] - 0.46 x [Al] ≤ 0.18 (상기 식 1에서 [Mn] 및 [Al]은 각각 슬라브에 포함된 망간(Mn) 및 알루미늄(Al)의 중량%를 의미한다.) The present invention provides a method for manufacturing a non-oriented electrical steel sheet, comprising the steps of: preparing a slab comprising, by wt%, carbon (C) in an amount greater than 0% and less than or equal to 0.002%, 2.3-2.8% of silicon (Si), 0.2-0.28% of manganese (Mn), 0.32-0.45% of aluminum (Al), phosphorus (P) in an amount greater than 0% and less than or equal to 0.015%, sulfur (S) in an amount greater than 0% and less than or equal to 0.002%, nitrogen (N) in an amount greater than 0% and less than or equal to 0.002%, titanium (Ti) in an amount greater than 0% and less than or equal to 0.002%, and the balance of iron (Fe) and inevitable impurities; hot rolling the slab, thereby forming a hot rolled sheet; pre-annealing the hot rolled sheet, thereby forming a hot annealed sheet; cold rolling the hot annealed sheet, thereby forming a cold rolled sheet; and cold annealing the cold rolled sheet, thereby forming a cold annealed sheet, wherein Mn and Al, which are contained in the slab, satisfy relation 1 (0.10 ≤ 1.3 x [Mn] - 0.46 x [Al] ≤ 0.18).</abstract><oa>free_for_read</oa></addata></record>
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subjects ALLOYS
BASIC ELECTRIC ELEMENTS
CHEMISTRY
ELECTRICITY
FERROUS OR NON-FERROUS ALLOYS
GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS
INDUCTANCES
MAGNETS
MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS
METALLURGY
METALLURGY OF IRON
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
TREATMENT OF ALLOYS OR NON-FERROUS METALS
title NON-ORIENTED ELECRICAL STEEL SHEET AND METHOD OF MANUFACTURING THE SAME
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