SI9700025B - Jeklo za izdelavo izkovkov in postopek kovanja - Google Patents

Jeklo za izdelavo izkovkov in postopek kovanja Download PDF

Info

Publication number
SI9700025B
SI9700025B SI9700025A SI9700025A SI9700025B SI 9700025 B SI9700025 B SI 9700025B SI 9700025 A SI9700025 A SI 9700025A SI 9700025 A SI9700025 A SI 9700025A SI 9700025 B SI9700025 B SI 9700025B
Authority
SI
Slovenia
Prior art keywords
temperature
optionally
process according
steel
forging
Prior art date
Application number
SI9700025A
Other languages
English (en)
Other versions
SI9700025A (en
Inventor
Jacques Bellus
Pierre Jolly
Claude Pichard
Vincent Jacot
Christian Tomme
Daniel Robat
Original Assignee
Ascometal (Societe Anonyme),
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ascometal (Societe Anonyme), filed Critical Ascometal (Societe Anonyme),
Publication of SI9700025A publication Critical patent/SI9700025A/sl
Publication of SI9700025B publication Critical patent/SI9700025B/sl

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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • 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
    • C21D1/02—Hardening articles or materials formed by forging or rolling, with no further heating beyond that required for the formation
    • 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
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • C21D1/20—Isothermal quenching, e.g. bainitic hardening
    • 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
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/002—Bainite

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Forging (AREA)

Claims (14)

1 Patentni zahtevki 1. Postopek kovanja, značilen po tem, da obsega korake: - zagotovljena jeklena gredica, katere kemična sestava v masnih % vsebuje: 0,1%<C<0,4% 1%<Μη<1,8% 0,15%<Si<l,7% 0%<Ni<l% 0%<Cr<l,2% 0%<Mo<0,3% 0%<V<0,3% Cu<0,35% - po izbiri od 0,005% do 0,06% aluminija, - po izbiri bor v vsebnosti med 0,0005% in 0,01%, - po izbiri med 0,005% in 0,03% titana, - po izbiri med 0,005% in 0,06% niobija, - po izbiri od 0,005% do 0,1% žvepla, po izbiri do 0,006% kalcija, - po izbiri do 0,03% telurja, po izbiri do 0,05% selena, po izbiri do 0,05% bizmuta, po izbiri do 0,1% svinca, - preostanek je železo in iz plavljenja izhajajoče nečistoče; 2 "* - vroče kovanje omenjene gredice, da se dobi izkovek, - izpostavljanje omenjenega izkovka toplotni obdelavi, ki se sestoji v bistvu iz ohlajanja iz temperature, pri kateri je jeklo popolnoma avstenitno, do temperature Tm, ležeče med Ms + 100 °C in MS°C s hitrostjo Vr ohlajanja, večjo od 0,5°C/s in brez držanja temperature med toplotno obdelavo, čemur sledi držanje izkovka med temperaturo Tm in temperaturo Tf, ki je večja ali enaka Ms, vsaj 2 minuti, tako da se doseže strukturo, ki vsebuje vsaj 15% spodnjega bainita, tvorjenega med Tm in Tr in manj kot 20% perlitnega ferita, pri čemer je Ms začetna temperatura martenzitne premene jekla.
2. Postopek po zahtevku 1 značilen po tem, da jeklo vsebuje manj kot 0,3% ogljika.
3. Postopek po zahtevku 1 značilen po tem, da jeklo vsebuje manj kot 1,6% mangana.
4. Postopek po zahtevku 1 značilen po tem, da jeklo vsebuje manj kot 0,8% silicija.
5. Postopek po zahtevku 1 značilen po tem, da jeklo vsebuje več kot 1,2% silicija.
6. Postopek po zahtevku 1 značilen po tem, daje držanje temperature izbrano tako, da struktura vsebuje vsaj 30% spodnjega bainita, tvorjenega med Tm in Tf.
7. Postopek po zahtevku 1 značilen po tem, da je hitrost Vr ohlajanja večja kot 2°C/s.
8. Postopek po zahtevku 1 značilen po tem, da se izkovek, potem ko se gaje držalo na temperaturi med Tm in Tt·, ohladi do sobne temperature.
9. Postopek po zahtevku 8 značilen po tem, da je ohladitev do sobne temperature dopolnjena z žarjenjem med 150°C in 650°C.
10. Postopek po zahtevku 1 značilen po tem, da se izkovek, potem ko se gaje držalo na temperaturi med Tra in Tf, ponovno segreje do temperature nižje od 650°C in nato ohladi do sobne temperature. 3
11. Postopek po zahtevku 1 značilen po tem, da se toplotno obdelavo opravi po segretju izkovka do temperature, večje kot AC3.
12. Postopek po zahtevku 1 značilen po tem, da se toplotno obdelavo opravi neposredno po kovanju.
13. Postopek po zahtevku 1 značilen po tem, daje Tf višja od Ms.
14. Postopek po zahtevku 1 značilen po tem, da sestoji iz omenjenih korakov.
SI9700025A 1996-02-08 1997-02-04 Jeklo za izdelavo izkovkov in postopek kovanja SI9700025B (sl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9601525A FR2744733B1 (fr) 1996-02-08 1996-02-08 Acier pour la fabrication de piece forgee et procede de fabrication d'une piece forgee

Publications (2)

Publication Number Publication Date
SI9700025A SI9700025A (en) 1997-10-31
SI9700025B true SI9700025B (sl) 2002-02-28

Family

ID=9488967

Family Applications (1)

Application Number Title Priority Date Filing Date
SI9700025A SI9700025B (sl) 1996-02-08 1997-02-04 Jeklo za izdelavo izkovkov in postopek kovanja

Country Status (18)

Country Link
US (1) US5820706A (sl)
EP (1) EP0787812B1 (sl)
JP (1) JP3915043B2 (sl)
KR (1) KR970062058A (sl)
AR (1) AR005719A1 (sl)
AT (1) ATE262047T1 (sl)
BR (1) BR9700917A (sl)
CA (1) CA2196029A1 (sl)
CZ (1) CZ293691B6 (sl)
DE (1) DE69728076T2 (sl)
DK (1) DK0787812T3 (sl)
ES (1) ES2217374T3 (sl)
FR (1) FR2744733B1 (sl)
HU (1) HUP9700269A3 (sl)
NO (1) NO970548L (sl)
PL (1) PL182920B1 (sl)
PT (1) PT787812E (sl)
SI (1) SI9700025B (sl)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3524790B2 (ja) * 1998-09-30 2004-05-10 株式会社神戸製鋼所 塗膜耐久性に優れた塗装用鋼材およびその製造方法
CN1402632A (zh) * 1999-12-23 2003-03-12 辉瑞产品公司 水凝胶驱动的药物剂型
JP3888865B2 (ja) * 2000-10-25 2007-03-07 株式会社ゴーシュー 鍛造方法
US7416617B2 (en) 2002-10-01 2008-08-26 Sumitomo Metal Industries, Ltd. High strength seamless steel pipe excellent in hydrogen-induced cracking resistance
FR2847910B1 (fr) * 2002-12-03 2006-06-02 Ascometal Sa Procede de fabrication d'une piece forgee en acier et piece ainsi obtenue.
JP4375971B2 (ja) * 2003-01-23 2009-12-02 大同特殊鋼株式会社 高強度ピニオンシャフト用鋼
AR047467A1 (es) 2004-01-30 2006-01-18 Sumitomo Metal Ind Tubo de acero sin costura para pozos petroliferos y procedimiento para fabricarlo
EP1700925B1 (en) 2005-03-09 2009-09-09 Ovako Bar Oy Ab High-strength air cooled steel alloy and hot worked product
JP3816937B1 (ja) * 2005-03-31 2006-08-30 株式会社神戸製鋼所 熱間成形品用鋼板およびその製造方法並びに熱間成形品
JP4677868B2 (ja) * 2005-09-26 2011-04-27 大同特殊鋼株式会社 高強度かつ高靱性で溶接可能な鋼とそれを使用した部材の製造方法
DE102006060994B4 (de) * 2006-12-20 2010-02-11 Zf Friedrichshafen Ag Kugelzapfen und -hülsen aus nichtrostendem Stahl
US9132567B2 (en) 2007-03-23 2015-09-15 Dayton Progress Corporation Tools with a thermo-mechanically modified working region and methods of forming such tools
US8968495B2 (en) * 2007-03-23 2015-03-03 Dayton Progress Corporation Methods of thermo-mechanically processing tool steel and tools made from thermo-mechanically processed tool steels
FR2916371B1 (fr) * 2007-05-24 2010-02-26 Fwu Kuang Entpr Co Ltd Procede de preparation de pieces forgees ayant une resistance a la traction et un allongement excellents a partir de fils mamchine en acier
FR2931166B1 (fr) * 2008-05-15 2010-12-31 Arcelormittal Gandrange Acier pour forge a chaud a hautes caracteristiques mecaniques des pieces produites
JP5483859B2 (ja) * 2008-10-31 2014-05-07 臼井国際産業株式会社 焼入性に優れた高強度鋼製加工品及びその製造方法、並びに高強度かつ耐衝撃特性及び耐内圧疲労特性に優れたディーゼルエンジン用燃料噴射管及びコモンレールの製造方法
NL2002248C2 (en) * 2008-11-24 2010-05-26 Weweler Nv Hardening of flexible trailing arms.
DE102009016079B4 (de) 2009-04-03 2018-09-06 Zf Friedrichshafen Ag Kugelzapfen aus einem Stahl mit bainitischem Gefüge und Verfahren zur Herstellung derartiger Kugelzapfen
FR2958660B1 (fr) 2010-04-07 2013-07-19 Ascometal Sa Acier pour pieces mecaniques a hautes caracteristiques et son procede de fabrication.
CN102444573A (zh) * 2010-10-11 2012-05-09 上海腾辉锻造有限公司 一种锻件泵轴的制造方法
ES2391322B1 (es) * 2011-04-29 2013-10-14 Consejo Superior De Investigaciones Científicas (Csic) ACERO BAINÍTICO 38MnV6, PROCEDIMIENTO DE OBTENCIÓN Y USO.
WO2013117953A1 (en) 2012-02-10 2013-08-15 Ascometal Process for making a steel part, and steel part so obtained
US9440693B2 (en) * 2014-03-20 2016-09-13 Caterpillar Inc. Air-hardenable bainitic steel part
FR3022259A1 (fr) 2014-06-16 2015-12-18 Asco Ind Acier pour pieces mecaniques a hautes caracteristiques traitees superficiellement, et pieces mecaniques en cet acier et leur procede de fabrication
WO2016151345A1 (fr) 2015-03-23 2016-09-29 Arcelormittal Pieces a structure bainitique a hautes proprietes de resistance et procede de fabrication
PL3168312T3 (pl) * 2015-11-16 2019-09-30 Deutsche Edelstahlwerke Specialty Steel Gmbh & Co. Kg Stopowa stal konstrukcyjna o strukturze bainitycznej, wytworzony z niej element kuty i sposób wytwarzania elementu kutego
WO2019180492A1 (en) * 2018-03-23 2019-09-26 Arcelormittal Forged part of bainitic steel and a method of manufacturing thereof
FR3123659A1 (fr) 2021-06-02 2022-12-09 Ascometal France Holding Sas Pièce en acier mise en forme à chaud et procédé de fabrication

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD68973A (sl) *
DE68973C (de) * W. ARNEMANN in Hamburg, Büschstr. 13 Pichmaschine
DE673465C (de) * 1930-04-01 1939-03-22 August Thyssen Huette Akt Ges Stahl fuer verschleissfeste und zaehe Gegenstaende, wie Schienen, Radreifen und Zahnraeder
FR717116A (fr) * 1930-06-21 1932-01-04 Kraftfahrzeugbedarf Kommandit Piston pour machines à combustion
GB800286A (en) * 1955-09-13 1958-08-20 United States Steel Corp Low-alloy high-strength steel
GB1116160A (en) * 1965-04-20 1968-06-06 Nippon Kokan Kk Improvements in or relating to steel alloys
CS126995B5 (sl) * 1967-01-28 1967-09-15
DE2144325A1 (de) * 1971-09-03 1973-03-15 Mim Comb Siderurg Galati Schweissbare, witterungsbestaendige feinkorn-baustaehle
SU441335A1 (ru) * 1972-12-26 1974-08-30 Уральский научно-исследовательский институт черных металлов Сталь
SU602596A1 (ru) * 1976-07-07 1978-04-15 Уральский научно-исследовательский институт черных металлов Сталь дл отливок
IT1171403B (it) * 1981-07-21 1987-06-10 Italtractor Procentimento per il trattamento termico diretto di maglie per catenarie di trattori o mezzi cingolati
JPS6096718A (ja) * 1983-10-31 1985-05-30 Kobe Steel Ltd 耐水素誘起割れ性及び耐応力腐食割れ性の優れた鋼板の製造方法
DD243982A1 (de) * 1985-12-06 1987-03-18 Suhl Feinmesszeugfab Veb Vorrichtung zur erzeugung der messkraft fuer ein messelement
DE3628712A1 (de) * 1986-08-23 1988-02-25 Kloeckner Stahl Gmbh Denitrierter, niedriglegierter, hochfester, grubenbestaendiger feinkornbaustahl
JPH04141549A (ja) * 1990-09-28 1992-05-15 Aichi Steel Works Ltd 熱間鍛造用高強度、高靭性非調質鋼
JP3003451B2 (ja) * 1992-03-11 2000-01-31 日本鋼管株式会社 加工性および溶接性に優れた耐摩耗鋼
JPH06248386A (ja) * 1993-02-26 1994-09-06 Sumitomo Metal Ind Ltd 耐遅れ破壊性に優れた機械構造用鋼
JP3139876B2 (ja) * 1993-04-05 2001-03-05 新日本製鐵株式会社 熱間鍛造用非調質鋼および非調質熱間鍛造品の製造方法ならびに非調質熱間鍛造品
FR2727981B1 (fr) * 1994-12-13 1997-01-10 Ascometal Sa Procede de fabrication d'une piece en acier de construction mecanique et piece ainsi fabriquee

Also Published As

Publication number Publication date
ATE262047T1 (de) 2004-04-15
KR970062058A (ko) 1997-09-12
US5820706A (en) 1998-10-13
PL182920B1 (pl) 2002-04-30
DE69728076D1 (de) 2004-04-22
MX9700924A (es) 1998-05-31
NO970548D0 (no) 1997-02-06
HUP9700269A3 (en) 1999-04-28
EP0787812B1 (fr) 2004-03-17
CZ37897A3 (en) 1997-08-13
NO970548L (no) 1997-08-11
CA2196029A1 (fr) 1997-08-09
DE69728076T2 (de) 2004-08-05
BR9700917A (pt) 1998-09-01
SI9700025A (en) 1997-10-31
PT787812E (pt) 2004-09-30
DK0787812T3 (da) 2004-07-26
FR2744733A1 (fr) 1997-08-14
HUP9700269A2 (hu) 1998-04-28
HU9700269D0 (en) 1997-03-28
CZ293691B6 (cs) 2004-07-14
PL318366A1 (en) 1997-08-18
ES2217374T3 (es) 2004-11-01
FR2744733B1 (fr) 1998-04-24
JP3915043B2 (ja) 2007-05-16
AR005719A1 (es) 1999-07-14
EP0787812A1 (fr) 1997-08-06
JPH09209086A (ja) 1997-08-12

Similar Documents

Publication Publication Date Title
SI9700025B (sl) Jeklo za izdelavo izkovkov in postopek kovanja
US5762725A (en) Steel for the manufacture of forging having a bainitic structure and process for manufacturing a forging
JPS5597425A (en) Preparation of high-tensile steel with low yield ratio, low carbon and low alloy
NO306122B1 (no) Stållegering, fremgangsmåte for fremstilling av denne og anvendelse av legeringen
JPS5776126A (en) Manufacture of tough steel
JP2004514060A5 (sl)
FR2834722B1 (fr) Procede de fabrication d'un produit siderurgique en acier au carbone riche en cuivre, et produit siderurgique ainsi obtenu
JPS55115928A (en) Production of non-aging cold rolled steel plate of excellent deep drawability
JPS5789437A (en) Production of cold rolled steel plate having excellent workability and bake hardenability
MXPA03010998A (es) Pieza de acero bainitico enfriada y recocida, y su proceso de fabricacion.
KR20010034182A (ko) 기계 가공이 자유로운 마르텐사이트계 스테인레스강
JPS5789426A (en) Manufacture of high-hardness and wear resistant steel having excellent weldability
JPH0717946B2 (ja) 耐濃硫酸腐食性に優れた二相ステンレス鋼の製造方法
JPS55131126A (en) Production of modified by low alloy containing boron high tensile steel plate
JPS57134518A (en) Production of high-toughness high-tensile steel
MX156238A (es) Metodo mejorado para producir acero inoxidable ferritico
JPH03180449A (ja) 冷間加工性，靭性，耐食性，被削性の優れたフェライト系快削ステンレス鋼およびその製造方法
KR910009760B1 (ko) 높은 투자율 및 낮은 보자력을 지닌 강제물품의 제조방법
JPS5729528A (en) Preparation of thick hot rolled high tension steel belt having excellent low temperature toughness
JPS57108220A (en) Production of high tensile steel for welded construction
JPS5726125A (en) Production of hot rolled steel plate of superior longitudinal crack resistance having low yield ratio and high tensile strength
JPH032355A (ja) 冷間加工性，靭性，耐食性の優れたフェライト系ステンレス鋼およびその製造方法
JPS5767115A (en) Heat treatment for hot forged parts
RU1788040C (ru) Способ производства ножей резки металла и сталь дл их изготовлени
JPH04259349A (ja) 熱間鍛造時に組織が粗大化しない熱鍛非調質鋼の製造方法

Legal Events

Date Code Title Description
IF Valid on the event date