KR20040029510A - 법랑용 열연강판의 제조방법 - Google Patents
법랑용 열연강판의 제조방법 Download PDFInfo
- Publication number
- KR20040029510A KR20040029510A KR1020020059800A KR20020059800A KR20040029510A KR 20040029510 A KR20040029510 A KR 20040029510A KR 1020020059800 A KR1020020059800 A KR 1020020059800A KR 20020059800 A KR20020059800 A KR 20020059800A KR 20040029510 A KR20040029510 A KR 20040029510A
- Authority
- KR
- South Korea
- Prior art keywords
- less
- temperature
- hot
- steel sheet
- manufacturing
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 49
- 239000010959 steel Substances 0.000 claims abstract description 49
- 238000005098 hot rolling Methods 0.000 claims abstract description 12
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 3
- 210000003298 dental enamel Anatomy 0.000 claims description 17
- 229910052719 titanium Inorganic materials 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 2
- 241000251468 Actinopterygii Species 0.000 abstract description 17
- 238000003303 reheating Methods 0.000 abstract description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 4
- 238000004534 enameling Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 239000011593 sulfur Substances 0.000 abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- 230000007547 defect Effects 0.000 description 12
- 229910052739 hydrogen Inorganic materials 0.000 description 10
- 239000001257 hydrogen Substances 0.000 description 10
- 239000002244 precipitate Substances 0.000 description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 5
- 239000011572 manganese Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- CADICXFYUNYKGD-UHFFFAOYSA-N sulfanylidenemanganese Chemical compound [Mn]=S CADICXFYUNYKGD-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910001567 cementite Inorganic materials 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B3/02—Rolling special iron alloys, e.g. stainless steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
-
- 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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
-
- 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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/225—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length by hot-rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0057—Coiling the rolled product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2261/00—Product parameters
- B21B2261/20—Temperature
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
Description
시편번호 | 화학성분(중량%), N는 ppm | 열연조건(℃) | ||||||||
C | Mn | P | S | Al | Ti | N | SLAB 재가열온도 | 열간압연마무리온도 | 권취온도 | |
발명강1 | 0.026 | 0.12 | 0.020 | 0.007 | 0.025 | 0.181 | 53 | 1200 | 900 | 680 |
발명강2 | 0.028 | 0.13 | 0.017 | 0.007 | 0.025 | 0.183 | 68 | |||
발명강3 | 0.034 | 0.11 | 0.014 | 0.006 | 0.030 | 0.190 | 60 | |||
비교강1 | 0.040 | 0.29 | 0.015 | 0.006 | 0.028 | 0.132 | 33 | |||
비교강2 | 0.037 | 0.21 | 0.014 | 0.009 | 0.025 | 0.192 | 35 |
시편번호 | 피쉬스케일 | 기계적 성질 | ||
항복강도,Mpa | 인장강도,Mpa | 연신율,% | ||
발명강1 | 미발생 | 221 | 406 | 35 |
발명강2 | 미발생 | 285 | 442 | 36 |
발명강3 | 미발생 | 313 | 468 | 30 |
비교강1 | 발생 | 684 | 689 | 20 |
비교강2 | 발생 | 569 | 629 | 22 |
Claims (1)
- 법랑용 열연강판의 제조방법에 있어서, 중량%로 C:0.01~0.08%, Mn:0.15%이하, P:0.03%이하, S:0.03%이하, Al: 0.02~0.06%, Ti:0.16~0.30%, N:50ppm 이상을 함유하고 나머지 Fe 및 기타 불가피한 불순물로 이루어진 강을 1300℃이하에서 재가열한 후 열간 압연하되, 열간압연 마무리 온도를 880℃ 이상으로 하고 600℃ 이상의 온도에서 권취하는 것을 특징으로 하는 법랑용 열연강판의 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0059800A KR100506634B1 (ko) | 2002-10-01 | 2002-10-01 | 법랑용 열연강판의 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0059800A KR100506634B1 (ko) | 2002-10-01 | 2002-10-01 | 법랑용 열연강판의 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20040029510A true KR20040029510A (ko) | 2004-04-08 |
KR100506634B1 KR100506634B1 (ko) | 2005-08-11 |
Family
ID=37330887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2002-0059800A KR100506634B1 (ko) | 2002-10-01 | 2002-10-01 | 법랑용 열연강판의 제조방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100506634B1 (ko) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02305926A (ja) * | 1989-05-17 | 1990-12-19 | Nippon Steel Corp | ホーロー用熱延鋼板の製造方法 |
JP3258704B2 (ja) * | 1992-05-27 | 2002-02-18 | 川崎製鉄株式会社 | ほうろう焼成後、高強度化するほうろう用熱延鋼板およびその製造方法 |
JPH0892653A (ja) * | 1994-09-27 | 1996-04-09 | Kawasaki Steel Corp | 耐つまとび性に優れた琺瑯用鋼板の製造方法 |
JPH08269540A (ja) * | 1995-03-30 | 1996-10-15 | Kawasaki Steel Corp | 耐つまとび性に優れるほうろう用熱延鋼板の製造方法 |
KR100361753B1 (ko) * | 1998-12-29 | 2003-02-20 | 주식회사 포스코 | 박슬라브 직접압연법을 이용한 열연법랑강판 제조방법 |
KR100402009B1 (ko) * | 1999-10-05 | 2003-10-17 | 주식회사 포스코 | 양면 법랑용 열연강판의 제조방법 |
-
2002
- 2002-10-01 KR KR10-2002-0059800A patent/KR100506634B1/ko active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
KR100506634B1 (ko) | 2005-08-11 |
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