KR880003023A - 마이크로 합금강 - Google Patents
마이크로 합금강 Download PDFInfo
- Publication number
- KR880003023A KR880003023A KR1019870007147A KR870007147A KR880003023A KR 880003023 A KR880003023 A KR 880003023A KR 1019870007147 A KR1019870007147 A KR 1019870007147A KR 870007147 A KR870007147 A KR 870007147A KR 880003023 A KR880003023 A KR 880003023A
- Authority
- KR
- South Korea
- Prior art keywords
- structural
- alloy steel
- manganese
- titanium
- vanadium
- Prior art date
Links
Classifications
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Laminated Bodies (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Liquid Crystal Substances (AREA)
- Heat Treatment Of Articles (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 약 0.25%의 탄소 및 1.5%의 망간과 부가적으로 각기 니오브, 니오브＋바나듐, 바나듐＋티탄이 함유된 강의 성질을 나타낸 도표,
제2도는 50㎜의 지름을 갖는 G강을 1300℃에서 열처리하여 30분간 공냉한 후의 중심부에 대한 현미경조직,
제3도는 특허청구 범위 제4항에 따른 강의 티탄 함유유부별 결정립의 크기를 나타낸 그래프.
Claims (5)
- 탄소:0.2-0.5%, 실리콘:0.4-1.0%, 망간:0.8-1.8%, 황:0.008-0.2%, 크롬:0-0.7%, 알루미늄:0-0.1%, 질소:0-0.04%, 티탄:0.01-0.05%와 철, 용해과정 중에 함유된 불순물 및 결정입계상에 석출된 황화물로 이루어지고, 1300℃이하의 온도에서 높은 미세 결정립 저항성을 갖는 구조용 마이크로 합금강.
- 제1항에 있어서, 부가적으로 0.2% 이하의 바나듐과 0.1% 이하의 니오브가 함유된 구조용 마이크로 합금강.
- 제2항에 있어서, 탄소:0.20-0.35%, 실리콘:0.5-0.8%, 망간:1.0-1.7%, 황:0.01-0.09%, 크롬:0.2-0.5%, 알루미늄:0.015-0.06%, 질소:0.015-0.030%, 바나듐:0.05-0.015% 및/또는 니오브:0.02-0.10%, 티탄 0.01-0.04%, 용해과정중에 함유된 불순물이 포함된 잔여철로 이루어지며, 1300℃이하의 온도에서의 열간작업이나 어닐링시 높은 미세 결정립 저항성을 나타내고, 인장강도 800N/㎟ 이상, 550N/㎟ 이상의 0.2% 항복강도, 파단연신율 15% 이상, 파단시의 단면수축율 45% 이상, 실온에서 DVM 샘플상의 노치충격치 25Joule 이상을 나타내는 구조용 마이크로 합금강.
- 제2항에 있어서, 탄소:0.35-0.45%, 실리콘:0.5-0.8%, 망간:1.0-1.7%, 황:0.01-0.9%, 크롬:0.2-0.5%, 알루미늄:0.015-0.06%, 질소:0.15-0.030%, 바나듐:0.5-0.15% 및/또는 니오브:0.02-0.10%, 티탄:0.01-0.04% 용해과정중에 함유된 불순물이 포함된 잔여철로 이루어지며, 1300℃이하의 온도에서의 열간작업이나 어닐링시 높은 미세 결정립 저항성을 나타내고, 인장강도 850N/㎟ 이상 600N/㎟ 이상의 0.2% 항복강도, 파단연신율 12% 이상, 파단시의 단면 수축율 40%이상, 실온에서 DVM 샘플상의 노치충격치 25Joule 이상을 나타내는 구조용 마이크로 합금강.
- 제1항 내지 제4항중 어느 한 항에 있어서, 자동차 구조용 부품에 적당한 구조용 마이크로 합금강.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3622735 | 1986-07-05 | ||
| DEP3622735.8 | 1986-08-11 | ||
| DE3719569A DE3719569C2 (de) | 1986-07-05 | 1987-06-12 | Mikrolegierte Stähle. |
| DEP3719569.7 | 1987-06-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR880003023A true KR880003023A (ko) | 1988-05-13 |
Family
ID=25845343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019870007147A KR880003023A (ko) | 1986-07-05 | 1987-07-04 | 마이크로 합금강 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4838963A (ko) |
| EP (1) | EP0255597B1 (ko) |
| KR (1) | KR880003023A (ko) |
| AT (1) | ATE70567T1 (ko) |
| DE (2) | DE3719569C2 (ko) |
| ES (1) | ES2027998T3 (ko) |
| FI (1) | FI88625B (ko) |
| GR (1) | GR3003399T3 (ko) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5221373A (en) * | 1989-06-09 | 1993-06-22 | Thyssen Edelstahlwerke Ag | Internal combustion engine valve composed of precipitation hardening ferritic-pearlitic steel |
| DE4017973A1 (de) * | 1989-06-09 | 1990-12-13 | Thyssen Edelstahlwerke Ag | Verwendung von afp-staehlen fuer erhoehten temperaturen ausgesetzte bauteile |
| DE4014072A1 (de) * | 1989-06-09 | 1990-12-20 | Thyssen Edelstahlwerke Ag | Verwendung von ausscheidungshaertenden ferritisch-perlitischen (afp-)staehlen als werkstoff fuer gaswechselventile von verbrennungsmotoren |
| DE4024381C2 (de) * | 1990-08-01 | 1999-01-28 | Mahle Gmbh | Kolben für Verbrennungsmotoren mit geschmiedeten Bereichen aus Stahl |
| DE4109628C2 (de) * | 1990-07-12 | 1997-04-17 | Mahle Gmbh | Verwendung eines ausscheidungshärtenden ferritisch perlitischen Stahls |
| US5136992A (en) * | 1990-07-12 | 1992-08-11 | Mahle Gmbh | Piston for internal combustion engines with forged sections made of steel |
| DE4137240A1 (de) * | 1991-11-13 | 1993-05-19 | Thyssen Edelstahlwerke Ag | Verwendung von afp-staehlen fuer die herstellung von werkzeugen |
| US5282906A (en) * | 1992-01-16 | 1994-02-01 | Inland Steel Company | Steel bar and method for producing same |
| ES2128240B1 (es) * | 1996-07-26 | 2000-01-01 | Gsb Grupo Siderurgico Vasco S | Procedimiento de fabricacion de aceros microaleados. |
| US6083455A (en) * | 1998-01-05 | 2000-07-04 | Sumitomo Metal Industries, Ltd. | Steels, steel products for nitriding, nitrided steel parts |
| DE102006007148A1 (de) * | 2006-02-16 | 2007-08-30 | Volkswagen Ag | Kolben für Verbrennungsmotoren und Verfahren zur Herstellung eines Kolbens für Verbrennungsmotoren |
| CN100469918C (zh) * | 2007-05-28 | 2009-03-18 | 无锡市恒特力金属制品有限公司 | Nb微合金化高强度粉末冶金材料 |
| JP4609585B2 (ja) * | 2008-06-06 | 2011-01-12 | 住友金属工業株式会社 | 軟窒化用鋼、軟窒化用鋼材およびクランクシャフト |
| US8241442B2 (en) | 2009-12-14 | 2012-08-14 | Arcelormittal Investigacion Y Desarrollo, S.L. | Method of making a hypereutectoid, head-hardened steel rail |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1608162B1 (de) * | 1967-11-13 | 1972-06-29 | Hoesch Ag | Verwendung von flachstahlprodukten |
| SE349059B (ko) * | 1968-11-22 | 1972-09-18 | Nippon Kokan Kk | |
| GB1342582A (en) * | 1970-03-20 | 1974-01-03 | British Steel Corp | Rail steel |
| US3773500A (en) * | 1970-03-26 | 1973-11-20 | Nippon Steel Corp | High tensile steel for large heat-input automatic welding and production process therefor |
| DE2428995B2 (de) * | 1974-06-15 | 1978-10-05 | Ferrotest Gmbh, Basel (Schweiz) | Verwendung eines naturharten Stahles für schweißgeeigneten Betonstahl mit hoher Dauerschwingfertigkeit |
| JPS5638448A (en) * | 1979-09-03 | 1981-04-13 | Nippon Steel Corp | Nonrefined tough steel |
| JPS5716114A (en) * | 1980-07-03 | 1982-01-27 | Daido Steel Co Ltd | Manufacture of steel for hardening by high frequency |
-
1987
- 1987-06-12 DE DE3719569A patent/DE3719569C2/de not_active Expired
- 1987-06-24 ES ES198787109046T patent/ES2027998T3/es not_active Expired - Lifetime
- 1987-06-24 EP EP87109046A patent/EP0255597B1/de not_active Expired - Lifetime
- 1987-06-24 DE DE8787109046T patent/DE3775298D1/de not_active Expired - Lifetime
- 1987-06-24 AT AT87109046T patent/ATE70567T1/de not_active IP Right Cessation
- 1987-07-02 FI FI872933A patent/FI88625B/fi not_active Application Discontinuation
- 1987-07-04 KR KR1019870007147A patent/KR880003023A/ko not_active Application Discontinuation
- 1987-07-06 US US07/070,047 patent/US4838963A/en not_active Expired - Fee Related
-
1991
- 1991-12-19 GR GR91401970T patent/GR3003399T3/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GR3003399T3 (en) | 1993-02-17 |
| DE3775298D1 (de) | 1992-01-30 |
| FI88625B (fi) | 1993-02-26 |
| DE3719569C2 (de) | 1988-06-23 |
| ATE70567T1 (de) | 1992-01-15 |
| EP0255597A2 (de) | 1988-02-10 |
| DE3719569A1 (de) | 1988-01-21 |
| FI872933A0 (fi) | 1987-07-02 |
| US4838963A (en) | 1989-06-13 |
| EP0255597B1 (de) | 1991-12-18 |
| ES2027998T3 (es) | 1992-07-01 |
| EP0255597A3 (en) | 1989-01-11 |
| FI872933A (fi) | 1988-01-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E601 | Decision to refuse application |