KR20030052207A - 수요가 가공시 타발성이 우수하며 응력제거소둔후 철손이낮은 무방향성 전기강판의 제조방법 - Google Patents
수요가 가공시 타발성이 우수하며 응력제거소둔후 철손이낮은 무방향성 전기강판의 제조방법 Download PDFInfo
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- KR20030052207A KR20030052207A KR1020010082121A KR20010082121A KR20030052207A KR 20030052207 A KR20030052207 A KR 20030052207A KR 1020010082121 A KR1020010082121 A KR 1020010082121A KR 20010082121 A KR20010082121 A KR 20010082121A KR 20030052207 A KR20030052207 A KR 20030052207A
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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
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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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/30—Stress-relieving
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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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
-
- 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
- C21D8/1272—Final recrystallisation annealing
-
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- 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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Child & Adolescent Psychology (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
Abstract
Description
강종 | 성분(중량%) | ||||||
C | Si | 산가용성Al | Mn | S | N | ||
발명강 | A | 0.004 | 0.1 | 1.0 | 0.5 | 0.003 | 0.002 |
B | 0.005 | 1.5 | 0.1 | 0.6 | 0.003 | 0.003 | |
C | 0.002 | 0.8 | 0.3 | 1.0 | 0.005 | 0.002 | |
D | 0.002 | 0.7 | 0.9 | 0.1 | 0.004 | 0.004 | |
E | 0.003 | 0.6 | 0.6 | 0.8 | 0.003 | 0.005 | |
F | 0.005 | 0.7 | 0.5 | 0.7 | 0.003 | 0.003 | |
G | 0.003 | 0.5 | 0.8 | 0.7 | 0.002 | 0.002 | |
H | 0.003 | 0.5 | 0.8 | 0.7 | 0.0005 | 0.002 | |
I | 0.003 | 0.5 | 0.8 | 0.7 | 0.002 | 0.0005 | |
J | 0.003 | 0.5 | 0.8 | 0.7 | 0.0005 | 0.0005 | |
K | 0.003 | 0.5 | 0.8 | 0.7 | 0.005 | 0.005 | |
L | 0.003 | 0.8 | 0.1 | 0.1 | 0.002 | 0.002 | |
M | 0.003 | 0.8 | 0.3 | 0.2 | 0.002 | 0.002 | |
N | 0.003 | 0.4 | 1.0 | 1.0 | 0.002 | 0.002 | |
비교강 | A | 0.003 | 0.05* | 0.7 | 0.6 | 0.003 | 0.002 |
B | 0.003 | 2.0* | 0.7 | 0.6 | 0.003 | 0.002 | |
*: 본 발명범위를 벗어난 조건임 |
시료번호 | 재가열온도(℃) | 권취온도(℃) | 응력제거소둔전 철손,W15/50(W/kg) | 응력제거소둔후 철손,W15/50(W/kg) | 철손개선율(%) |
발명재15 | 1150 | 740 | 5.18 | 2.80 | 46 |
비교재16 | 1200* | 740 | 5.75 | 4.54* | 21* |
비교재17 | 1050* | 600* | 5.46 | 4.01* | 27* |
Claims (1)
- 무방향성 전기강판의 제조방법에 있어서,중량%로 C: 0.005%이하, S:0.0005~0.005%, N:0.0005~0.005%, Si:0.1∼1.5%, 산가용성 Al:0.1~1.0%, Mn:0.1~1.0%, 나머지Fe 및 기타 불순물로 조성된 강 슬라브를 1050∼1250℃온도범위에서 S 및 N함량에 의 아래 관계식 1에 의해 결정되는 재가열온도(T1)에서 재가열하여 1.8~3.0mm두께로 열간압연하는 단계,[관계식 1]T1=1650+1200/log(X1+X2) ±5℃여기서 T1:적정 재가열온도, X1:S함량(중량%), X2:N함량(중량%)이 열간압연판을 600∼800℃온도범위에서 산가용성 Al 및 Mn첨가량에 의해 아래 관계식 2에 의해 결정되는 권취온도(T2)에서 권취하는 단계,[관계식 2]T2=1200+1200/log[(Y1+Y2)/200] ±5℃여기서 T2:적정 권취온도, Y1:산가용성 Al함량(중량%), Y2:Mn함량(중량%)상기 권취한 미소둔 열간압연판을 산세척 행한 후 0.2~0.65mm두께로 1회 냉간압연하는 단계,냉간압연판을 600∼800℃온도에서 30∼300초동안 소둔한 다음, 수요가 가공 후 700∼850℃온도에서 응력제거소둔하는 단계를 포함하여 이루어짐을 특징으로 하는 수요가 가공시 타발성이 우수하며 응력제거소둔후 철손이 낮은 무방향성 전기강판의제조방법.
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KR1020010082121A KR100544738B1 (ko) | 2001-12-20 | 2001-12-20 | 수요가 가공시 타발성이 우수하며 응력제거소둔후 철손이낮은 무방향성 전기강판의 제조방법 |
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KR1020010082121A KR100544738B1 (ko) | 2001-12-20 | 2001-12-20 | 수요가 가공시 타발성이 우수하며 응력제거소둔후 철손이낮은 무방향성 전기강판의 제조방법 |
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KR20030052207A true KR20030052207A (ko) | 2003-06-26 |
KR100544738B1 KR100544738B1 (ko) | 2006-01-24 |
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JPH0819465B2 (ja) * | 1990-02-02 | 1996-02-28 | 日本鋼管株式会社 | 無方向性電磁鋼板の製造方法 |
KR100345706B1 (ko) * | 1996-12-09 | 2002-09-18 | 주식회사 포스코 | 자기적특성이우수한무방향성전기강판및그제조방법 |
KR100395100B1 (ko) * | 1998-06-16 | 2003-10-17 | 주식회사 포스코 | 수요가 열처리후 자성이 우수한 무방향성 전기강판의 제조방법 |
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