KR100940658B1 - 디스케일링성이 우수한 열간압연선재의 제조방법 - Google Patents
디스케일링성이 우수한 열간압연선재의 제조방법 Download PDFInfo
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- KR100940658B1 KR100940658B1 KR1020020058309A KR20020058309A KR100940658B1 KR 100940658 B1 KR100940658 B1 KR 100940658B1 KR 1020020058309 A KR1020020058309 A KR 1020020058309A KR 20020058309 A KR20020058309 A KR 20020058309A KR 100940658 B1 KR100940658 B1 KR 100940658B1
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- Prior art keywords
- descaling
- rolling
- cooling
- scale
- hot rolled
- Prior art date
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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
- C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
- C21D8/065—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires of ferrous alloys
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
Description
강 성분(중량%) | |||||
C | Si | Mn | P | S | |
강 A | 0.35 | 0.06 | 0.42 | 0.020 | 0.006 |
강 B | 0.37 | 0.49 | 0.34 | 0.012 | 0.010 |
강 C | 0.63 | 0.28 | 0.81 | 0.017 | 0.005 |
강 D | 0.81 | 0.26 | 0.78 | 0.009 | 0.008 |
강 E | 0.92 | 0.23 | 0.75 | 0.011 | 0.007 |
Claims (1)
- 중량%로, C: 0.30~1.00%, Si: 0.03~1.00%, Mn: 0.10~1.00%, P: 0.05%이하(0은 제외), S: 0.01%이하(0은 제외), 나머지 Fe 및 기타 불가피한 불순물로 조성되는 빌렛을 750~850℃로 제1 마무리압연한 후 냉각한 다음, 700~800℃로 제2 마무리압연한 후, 700~800℃에서 권취한 후 표면의 평균냉각속도를 30~80℃/초로 500~550℃까지 냉각하는 것을 포함하여 이루어지는 디스케일링성이 우수한 열간압연선재의 제조방법.
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KR1020020058309A KR100940658B1 (ko) | 2002-09-26 | 2002-09-26 | 디스케일링성이 우수한 열간압연선재의 제조방법 |
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KR1020020058309A KR100940658B1 (ko) | 2002-09-26 | 2002-09-26 | 디스케일링성이 우수한 열간압연선재의 제조방법 |
Publications (2)
Publication Number | Publication Date |
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KR20040026755A KR20040026755A (ko) | 2004-04-01 |
KR100940658B1 true KR100940658B1 (ko) | 2010-02-05 |
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KR1020020058309A KR100940658B1 (ko) | 2002-09-26 | 2002-09-26 | 디스케일링성이 우수한 열간압연선재의 제조방법 |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101253901B1 (ko) * | 2010-12-27 | 2013-04-16 | 주식회사 포스코 | 디스케일링성이 우수한 고탄소강 선재 및 그 제조방법 |
KR102448753B1 (ko) * | 2020-11-27 | 2022-09-30 | 주식회사 포스코 | 절삭성 및 충격인성이 향상된 중탄소 비조질 선재 및 그 제조방법 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58122105A (ja) * | 1982-01-16 | 1983-07-20 | Sumitomo Metal Ind Ltd | 鋼帯の製造方法 |
JPH05117763A (ja) * | 1991-10-24 | 1993-05-14 | Nippon Steel Corp | メカニカルデスケーリング性に優れた冷間圧造用炭素鋼線材の製造法 |
KR19990085728A (ko) * | 1998-05-21 | 1999-12-15 | 이구택 | 비열처리형 60㎏/㎟급 고장력 강판의 제조방법 |
KR20000040612A (ko) * | 1998-12-18 | 2000-07-05 | 이구택 | 기계적 스케일 박리성이 우수한 침대스프링용 경강선재 제조방법 |
JP2002105535A (ja) * | 2000-09-28 | 2002-04-10 | Daido Steel Co Ltd | 棒線材の製造方法 |
-
2002
- 2002-09-26 KR KR1020020058309A patent/KR100940658B1/ko active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58122105A (ja) * | 1982-01-16 | 1983-07-20 | Sumitomo Metal Ind Ltd | 鋼帯の製造方法 |
JPH05117763A (ja) * | 1991-10-24 | 1993-05-14 | Nippon Steel Corp | メカニカルデスケーリング性に優れた冷間圧造用炭素鋼線材の製造法 |
KR19990085728A (ko) * | 1998-05-21 | 1999-12-15 | 이구택 | 비열처리형 60㎏/㎟급 고장력 강판의 제조방법 |
KR20000040612A (ko) * | 1998-12-18 | 2000-07-05 | 이구택 | 기계적 스케일 박리성이 우수한 침대스프링용 경강선재 제조방법 |
JP2002105535A (ja) * | 2000-09-28 | 2002-04-10 | Daido Steel Co Ltd | 棒線材の製造方法 |
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KR20040026755A (ko) | 2004-04-01 |
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