KR20040054988A - 표면탈탄이 적은 고실리콘 첨가 고탄소 선재의 제조방법 - Google Patents
표면탈탄이 적은 고실리콘 첨가 고탄소 선재의 제조방법 Download PDFInfo
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- KR20040054988A KR20040054988A KR1020020081547A KR20020081547A KR20040054988A KR 20040054988 A KR20040054988 A KR 20040054988A KR 1020020081547 A KR1020020081547 A KR 1020020081547A KR 20020081547 A KR20020081547 A KR 20020081547A KR 20040054988 A KR20040054988 A KR 20040054988A
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- wire rod
- billet
- heating
- cooling
- temperature
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 65
- 238000001816 cooling Methods 0.000 claims abstract description 40
- 239000010936 titanium Substances 0.000 claims abstract description 33
- 238000005261 decarburization Methods 0.000 claims abstract description 30
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 22
- 230000009466 transformation Effects 0.000 claims abstract description 21
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052796 boron Inorganic materials 0.000 claims abstract description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 13
- 238000005096 rolling process Methods 0.000 claims abstract description 13
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 13
- 239000010703 silicon Substances 0.000 claims abstract description 13
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 13
- 239000010955 niobium Substances 0.000 claims abstract description 12
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 11
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 11
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 10
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 9
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 5
- 239000001301 oxygen Substances 0.000 claims abstract description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 5
- 239000011574 phosphorus Substances 0.000 claims abstract description 5
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 5
- 239000011593 sulfur Substances 0.000 claims abstract description 5
- 239000012535 impurity Substances 0.000 claims abstract description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 16
- 239000010439 graphite Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 13
- 239000011572 manganese Substances 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 7
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 6
- 229910052748 manganese Inorganic materials 0.000 claims description 6
- 229910000859 α-Fe Inorganic materials 0.000 abstract description 26
- 229910000976 Electrical steel Inorganic materials 0.000 abstract description 2
- 230000014509 gene expression Effects 0.000 abstract 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 66
- 239000010959 steel Substances 0.000 description 66
- 230000000694 effects Effects 0.000 description 21
- 238000005087 graphitization Methods 0.000 description 21
- 239000000463 material Substances 0.000 description 21
- 230000000052 comparative effect Effects 0.000 description 20
- 229910001566 austenite Inorganic materials 0.000 description 17
- 230000003111 delayed effect Effects 0.000 description 17
- 239000002244 precipitate Substances 0.000 description 10
- 230000007423 decrease Effects 0.000 description 8
- 229920006395 saturated elastomer Polymers 0.000 description 7
- 239000002131 composite material Substances 0.000 description 6
- 230000001965 increasing effect Effects 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 6
- 238000005728 strengthening Methods 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 230000001737 promoting effect Effects 0.000 description 5
- 229910000677 High-carbon steel Inorganic materials 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 4
- 230000002411 adverse Effects 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 238000005204 segregation Methods 0.000 description 4
- 239000006104 solid solution Substances 0.000 description 4
- 238000005275 alloying Methods 0.000 description 3
- 229910001567 cementite Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 150000004767 nitrides Chemical class 0.000 description 3
- 230000006911 nucleation Effects 0.000 description 3
- 238000010899 nucleation Methods 0.000 description 3
- 238000003303 reheating Methods 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000010953 base metal Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 230000035425 carbon utilization Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229910001563 bainite Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000003466 welding Methods 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
- B21B1/16—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section
-
- 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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- 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
- C22C38/02—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
- C22C38/14—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
- 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 Steel (AREA)
Abstract
Description
구분 | 화학성분 | ||||||||||||
C | Si | Mn | P | S | N | O | Ni | B | V | Nb | Ti | ||
발명강 | 1 | 0.79 | 3.08 | 0.52 | 0.009 | 0.009 | 0.0055 | 0.0013 | - | 0.0020 | 0.05 | 0.03 | 0.008 |
2 | 0.72 | 3.48 | 0.53 | 0.007 | 0.008 | 0.0072 | 0.0014 | - | 0.0012 | 0.06 | 0.01 | ||
3 | 0.88 | 3.10 | 0.57 | 0.006 | 0.009 | 0.0064 | 0.0015 | 0.72 | 0.0009 | 0.07 | 0.013 | ||
4 | 0.86 | 2.21 | 0.8 | 0.006 | 0.009 | 0.0093 | 0.0016 | - | 0.0041 | 0.01 | 0.01 | ||
5 | 0.85 | 3.92 | 0.52 | 0.007 | 0.006 | 0.0044 | 0.0017 | - | 0.0019 | 0.04 | 0.005 | ||
6 | 1.21 | 3.25 | 0.63 | 0.007 | 0.007 | 0.0120 | 0.0017 | - | 0.0023 | - | 0.013 | ||
7 | 1.38 | 2.55 | 0.8 | 0.009 | 0.008 | 0.0118 | 0.0018 | 1.20 | 0.0034 | - | 0.020 | ||
비교강 | 1 | 0.79 | 3.08 | 0.52 | 0.008 | 0.009 | 0.0053 | 0.0013 | - | - | 0.05 | 0.03 | - |
2 | 0.78 | 3.11 | 0.54 | 0.006 | 0.008 | 0.0056 | 0.0012 | - | 0.002 | 0.05 | 0.03 | 0.015 | |
3 | 0.77 | 2.99 | 0.51 | 0.007 | 0.009 | 0.0054 | 0.0011 | - | 0.0043 | 0.05 | 0.03 | 0.009 |
구분 | Ti/N | N/B | (Ti+5B)/N |
발명강1 | 1.5 | 2.8 | 3.3 |
발명강2 | 1.4 | 6.0 | 2.2 |
발명강3 | 2.0 | 7.1 | 2.7 |
발명강4 | 1.1 | 2.3 | 3.3 |
발명강5 | 1.1 | 2.3 | 3.3 |
발명강6 | 1.1 | 5.2 | 2.0 |
발명강7 | 1.7 | 3.5 | 3.1 |
비교강1 | - | - | - |
비교강2 | 2.7 | 2.7 | 4.5 |
비교강3 | 1.7 | 1.3 | 5.6 |
구분 | 사용강종 | Ac1까지 승온속도(℃/min) | 이상역 승온속도(℃/min) | Acm이후 가열유지온도까지 승온속도(℃/min) | 가열유지온도(℃) | 가열유지시간(min) | 지름 16mm선재전탈탄깊이(mm) |
발명재1 | 발명강1 | 20 | 2 | 15 | 1000 | 40 | 0.04 |
발명재2 | 발명강1 | 20 | 4 | 15 | 1050 | 30 | 0.05 |
발명재3 | 발명강1 | 20 | 6 | 15 | 1050 | 30 | 0.04 |
발명재4 | 발명강1 | 20 | 4 | 10 | 1050 | 30 | 0.03 |
발명재5 | 발명강1 | 20 | 4 | 15 | 1050 | 30 | 0.06 |
발명재6 | 발명강1 | 20 | 4 | 20 | 1050 | 30 | 0.04 |
발명재7 | 발명강1 | 20 | 4 | 15 | 950 | 40 | 0.04 |
발명재8 | 발명강1 | 20 | 4 | 15 | 1100 | 30 | 0.04 |
발명재9 | 발명강2 | 20 | 4 | 15 | 1050 | 30 | 0.05 |
발명재10 | 발명강3 | 20 | 4 | 15 | 1050 | 30 | 0.04 |
발명재11 | 발명강4 | 20 | 4 | 15 | 1050 | 30 | 0.05 |
발명재12 | 발명강5 | 20 | 4 | 15 | 1050 | 30 | 0.04 |
발명재13 | 발명강6 | 20 | 4 | 15 | 1050 | 30 | 0.05 |
발명재14 | 발명강7 | 20 | 4 | 15 | 1050 | 30 | 0.03 |
비교재1 | 발명강1 | 20 | 8 | 15 | 1050 | 30 | 0.10 |
비교재2 | 발명강1 | 20 | 13 | 15 | 1050 | 30 | 0.12 |
비교재3 | 발명강1 | 20 | 17 | 5 | 1050 | 30 | 0.16 |
비교재4 | 발명강1 | 20 | 17 | 25 | 1050 | 30 | 0.21 |
비교재5 | 발명강1 | 20 | 17 | 25 | 1200 | 30 | 0.23 |
비교재6 | 비교강1 | 20 | 6 | 15 | 1050 | 30 | 0.04 |
비교재7 | 비교강2 | 20 | 6 | 15 | 1050 | 30 | 0.04 |
비교재8 | 비교강3 | 20 | 6 | 15 | 1050 | 30 | 0.04 |
강종 | 냉각개시온도(권취온도)(℃) | 1차냉각온도(℃) | 1차 냉각온도까지 냉각속도(℃/sec) | 2차냉각온도(℃) | 2차 냉각온도까지 냉각속도(℃/sec) | 흑연립 상분율(%) | 흑연립 평균크기(㎛) | 선재인장강도(kg/mm2)(16mm기준) |
발명강1 | 900 | 740 | 1.3 | 670 | 0.6 | 2.3 | 18 | 57 |
발명강2 | 860 | 740 | 1.8 | 640 | 0.4 | 2.2 | 16 | 58 |
발명강3 | 900 | 740 | 1.8 | 640 | 0.6 | 2.3 | 17 | 57 |
발명강4 | 950 | 800 | 1.8 | 660 | 0.6 | 2.4 | 19 | 56 |
발명강5 | 900 | 740 | 1.8 | 680 | 0.6 | 2.3 | 20 | 58 |
발명강6 | 900 | 800 | 2.3 | 570 | 0.4 | 2.5 | 23 | 60 |
발명강7 | 950 | 770 | 1.8 | 660 | 0.6 | 2.8 | 24 | 60 |
비교강1 | 950 | 770 | 1.8 | 660 | 0.6 | 0 | 0 | 107 |
비교강2 | 950 | 770 | 1.8 | 660 | 0.6 | 0.5 | 19 | 96 |
비교강3 | 950 | 770 | 1.8 | 660 | 0.6 | 0.6 | 17 | 95 |
Claims (2)
- 중량%로, 탄소 0.65-1.50%, 실리콘 2.0-4.0%, 망간 0.1-0.8%, 인 0.01%이하, 황 0.01%이하, 질소 0.004-0.013%, 산소 0.005% 이하, 보론 0.001-0.003%, 티타늄 0.005~0.03%를 함유하고, 여기에 니켈 0.3-2.0%, 바나듐:0.01∼0.5%, 니오븀:0.01∼0.5%로 이루어진 그룹중에서 선택된 1종 또는 2종 이상, 나머지 Fe 및 기타 불순물로 조성되며, 상기 티타늄(Ti), 질소(N), 보론(B)이 다음의 관계, 0.5≤Ti/N≤2.0, 2≤N/B≤8, 1.0≤(Ti+5B)/N≤3.5를 만족하는 빌레트를 얻는 단계,상기 빌레트를 Ac1변태점까지 20±5℃/분의 가열속도로 가열하고 이상역 범위인 Ac1변태점에서 Acm변태점까지는 4±2℃/분의 가열속도로 가열하고, 1050±100℃까지 15±5℃/분의 가열속도로 가열하여 이 온도구간에서 30분 이상 유지한 다음, 선재압연하는 단계,선재압연한 직후 860-950℃에서 권취하는 단계 및,권취한 선재를 770±30℃까지는 1.8±0.5℃/sec의 냉각속도로 1차 냉각하고, 620±50℃까지는 0.4±0.2℃/sec의 냉각속도로 2차 냉각한 후 공냉하여 선재를 얻는 단계를 포함하여 이루어지는 표면탈탄이 적은 고실리콘 첨가 고탄소 선재의 제조방법.
- 제 1항에 있어서, 상기 선재는 흑연립 크기가 50㎛이하, 흑연립 상분율이 0.1%이상임을 특징으로 하는 표면탈탄이 적은 고실리콘 첨가 고탄소 선재의 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020020081547A KR100900646B1 (ko) | 2002-12-20 | 2002-12-20 | 표면탈탄이 적은 고실리콘 첨가 고탄소 선재의 제조방법 |
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KR1020020081547A KR100900646B1 (ko) | 2002-12-20 | 2002-12-20 | 표면탈탄이 적은 고실리콘 첨가 고탄소 선재의 제조방법 |
Publications (2)
Publication Number | Publication Date |
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KR20040054988A true KR20040054988A (ko) | 2004-06-26 |
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KR100627484B1 (ko) * | 2004-11-24 | 2006-09-25 | 주식회사 포스코 | 표면탈탄이 적은 기계구조용 흑연화 선재 제조방법 |
KR100920567B1 (ko) * | 2002-12-26 | 2009-10-08 | 주식회사 포스코 | 고실리콘 첨가 고탄소 선재의 제조방법 |
KR101053406B1 (ko) * | 2008-12-09 | 2011-08-01 | 주식회사 포스코 | 고탄소강 선재의 구상화 열처리 방법 |
KR20200063900A (ko) * | 2018-11-28 | 2020-06-05 | 주식회사 포스코 | 스프링강용 선재의 제조 방법 |
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CN103240271B (zh) * | 2013-04-18 | 2014-12-24 | 首钢总公司 | 一种降低低碳钢盘条拉拔动态时效的生产方法 |
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KR100431848B1 (ko) * | 1999-12-28 | 2004-05-20 | 주식회사 포스코 | 저온조직이 없는 고실리콘 첨가 고탄소 선재의 제조방법 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100920567B1 (ko) * | 2002-12-26 | 2009-10-08 | 주식회사 포스코 | 고실리콘 첨가 고탄소 선재의 제조방법 |
KR100627484B1 (ko) * | 2004-11-24 | 2006-09-25 | 주식회사 포스코 | 표면탈탄이 적은 기계구조용 흑연화 선재 제조방법 |
KR101053406B1 (ko) * | 2008-12-09 | 2011-08-01 | 주식회사 포스코 | 고탄소강 선재의 구상화 열처리 방법 |
KR20200063900A (ko) * | 2018-11-28 | 2020-06-05 | 주식회사 포스코 | 스프링강용 선재의 제조 방법 |
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