EP1566459A3 - Process for producing cast pieces of spheroidal graphite with high geometrical and dimensional precision and improved mechanical properties - Google Patents

Process for producing cast pieces of spheroidal graphite with high geometrical and dimensional precision and improved mechanical properties Download PDF

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Publication number
EP1566459A3
EP1566459A3 EP05290234A EP05290234A EP1566459A3 EP 1566459 A3 EP1566459 A3 EP 1566459A3 EP 05290234 A EP05290234 A EP 05290234A EP 05290234 A EP05290234 A EP 05290234A EP 1566459 A3 EP1566459 A3 EP 1566459A3
Authority
EP
European Patent Office
Prior art keywords
improved mechanical
essentially
spheroidal graphite
mechanical properties
iron
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP05290234A
Other languages
German (de)
French (fr)
Other versions
EP1566459A2 (en
Inventor
Daniel Labbe
Jean-Michel Lesire
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Technologica
Ateliers des Janves
Original Assignee
Technologica
Ateliers des Janves
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 Technologica, Ateliers des Janves filed Critical Technologica
Publication of EP1566459A2 publication Critical patent/EP1566459A2/en
Publication of EP1566459A3 publication Critical patent/EP1566459A3/en
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C37/00—Cast-iron alloys
    • C22C37/04—Cast-iron alloys containing spheroidal graphite
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/08—Making cast-iron alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C37/00—Cast-iron alloys
    • C22C37/10—Cast-iron alloys containing aluminium or silicon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Forging (AREA)

Abstract

L'invention concerne un procédé de fabrication de pièces coulées en fonte à graphite sphéroïdale de grande précision géométrique et dimensionnelle et à caractéristiques mécaniques améliorées, à partir de:
la composition pondérale suivante: 3 à 4 % de C; 1,7 à 3 % de Si; 0,1 à 0,7 % de Mn; 0 à 4 % de Ni; 0 à 1,5% de Cu; 0 à 0,5% de Mo, avec une teneur en Mg résiduel adaptée à l'épaisseur des pièces comprise entre 0,025 % et 0,080%, le reste étant du fer et des impuretés résultant de l'élaboration,
coulé à l'état liquide à une température comprise entre 1350°C et 1550°C;
et caractérisé en ce que l'ébauche de la pièce obtenue par moulage possède un volume sensiblement identique à celui de la pièce et que l'opération de mise en forme par déformation plastique à chaud est une opération de calibrage en conteneurs ou en matrices fermées permettant d'obtenir la pièce moulée calibrée sans bavure latérale.The invention relates to a method for manufacturing spheroidal cast iron castings of high geometric and dimensional accuracy and with improved mechanical characteristics, from:
the following composition by weight: 3 to 4% of C; 1.7 to 3% Si; 0.1 to 0.7% Mn; 0 to 4% Ni; 0 to 1.5% Cu; 0 to 0.5% Mo, with a residual Mg content adapted to the thickness of the pieces of between 0.025% and 0.080%, the remainder being iron and impurities resulting from the preparation,
cast in a liquid state at a temperature between 1350 ° C and 1550 ° C;
and characterized in that the blank of the molded part has a volume substantially the same as that of the workpiece and the hot-plastic deformation forming operation is a sizing operation in containers or closed dies allowing to obtain the calibrated molded part without lateral burr.

Fonte à graphite sphéroïdal élaborée et mise en forme selon l'invention dont la structure est, soit essentiellement bainitique, soit essentiellement perlitique, soit essentiellement ferritique, soit constituée de ferrite et de perlite en proportions variables.Spheroidal graphite iron, produced and shaped according to the invention, whose structure is either essentially bainitic, or essentially pearlitic, or essentially ferritic, or consists of ferrite and pearlite in variable proportions.

EP05290234A 2004-02-12 2005-02-03 Process for producing cast pieces of spheroidal graphite with high geometrical and dimensional precision and improved mechanical properties Withdrawn EP1566459A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0401397 2004-02-12
FR0401397A FR2866351B1 (en) 2004-02-12 2004-02-12 PROCESS FOR MANUFACTURING SPHEROIDAL GRAPHITE CAST IRON WITH HIGH GEOMETRIC AND DIMENSIONAL PRECISION AND IMPROVED MECHANICAL CHARACTERISTICS

Publications (2)

Publication Number Publication Date
EP1566459A2 EP1566459A2 (en) 2005-08-24
EP1566459A3 true EP1566459A3 (en) 2007-06-27

Family

ID=34707996

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05290234A Withdrawn EP1566459A3 (en) 2004-02-12 2005-02-03 Process for producing cast pieces of spheroidal graphite with high geometrical and dimensional precision and improved mechanical properties

Country Status (3)

Country Link
EP (1) EP1566459A3 (en)
CN (1) CN1670233A (en)
FR (1) FR2866351B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10266927B2 (en) 2012-07-23 2019-04-23 Ferry Capitain Alloy, corresponding part and manufacturing method

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102051520B (en) * 2011-01-25 2013-03-27 上海圣德曼铸造有限公司 Composite beam connecting piece for maglev train and casting method of composite beam connecting piece
CN103060669A (en) * 2013-01-10 2013-04-24 鞍钢集团铁路运输设备制造公司 Sintering machine heat insulation pad material and thermal treatment method of same
CN105970076B (en) * 2016-06-27 2017-10-31 含山县兴达球墨铸铁厂 The preparation method of high-strength low-temperature-resistant spheroidal graphite cast-iron
CN111368416B (en) * 2020-03-02 2020-11-13 三鑫重工机械有限公司 Large-scale steel casting mold filling sensing correction method and system

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB697743A (en) * 1950-01-10 1953-09-30 Electric Furnace Prod Co Improvements in and relating to cast iron articles
US3411957A (en) * 1965-06-01 1968-11-19 Nisso Seiko Kabushiki Kaisha Method of manufacturing a cast iron roll
GB2079315A (en) * 1980-07-01 1982-01-20 Creusot Loire Ferritic spheroidal-graphite iron for casting thick sections without segregation
JPS58185745A (en) * 1982-04-22 1983-10-29 Mazda Motor Corp Spherical graphite cast iron parts and their manufacture
EP0144907A2 (en) * 1983-12-05 1985-06-19 Nissan Motor Co., Ltd. Method of producing austempered spheroidal graphite cast iron body
DE3509709A1 (en) * 1984-03-19 1985-09-26 Nissan Motor Co., Ltd., Yokohama, Kanagawa Process for producing an austempered nodular cast iron article, and the article thus obtained
US4838956A (en) * 1987-04-16 1989-06-13 Mazda Motor Corporation Method of producing a spheroidal graphite cast iron
US4990194A (en) * 1988-09-09 1991-02-05 Hitachi Metals, Ltd. Thin high-strength article of spheroidal graphite cast iron and method of producing same
FR2712606A1 (en) * 1993-11-19 1995-05-24 Tech Ind Fonderie Centre Spheroidal graphite cast iron@ with high toughness
DE20306253U1 (en) * 2003-04-17 2003-06-26 Deutsche Bahn AG, 10785 Berlin Solid wheel for rail vehicles comprising isothermally treated bainitic cast iron with spheroidal graphite and microstructure containing austenite
FR2839727A1 (en) * 2002-05-14 2003-11-21 Technologica Sarl Production and hot forming of components of spheroidal graphite iron with elevated mechanical characteristics with an essentially bainitic structure

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB697743A (en) * 1950-01-10 1953-09-30 Electric Furnace Prod Co Improvements in and relating to cast iron articles
US3411957A (en) * 1965-06-01 1968-11-19 Nisso Seiko Kabushiki Kaisha Method of manufacturing a cast iron roll
GB1149401A (en) * 1965-06-01 1969-04-23 Nisso Seiko Kabushiki Kaisha Hot worked cast iron roll
GB2079315A (en) * 1980-07-01 1982-01-20 Creusot Loire Ferritic spheroidal-graphite iron for casting thick sections without segregation
JPS58185745A (en) * 1982-04-22 1983-10-29 Mazda Motor Corp Spherical graphite cast iron parts and their manufacture
EP0144907A2 (en) * 1983-12-05 1985-06-19 Nissan Motor Co., Ltd. Method of producing austempered spheroidal graphite cast iron body
DE3509709A1 (en) * 1984-03-19 1985-09-26 Nissan Motor Co., Ltd., Yokohama, Kanagawa Process for producing an austempered nodular cast iron article, and the article thus obtained
US4838956A (en) * 1987-04-16 1989-06-13 Mazda Motor Corporation Method of producing a spheroidal graphite cast iron
US4990194A (en) * 1988-09-09 1991-02-05 Hitachi Metals, Ltd. Thin high-strength article of spheroidal graphite cast iron and method of producing same
FR2712606A1 (en) * 1993-11-19 1995-05-24 Tech Ind Fonderie Centre Spheroidal graphite cast iron@ with high toughness
FR2839727A1 (en) * 2002-05-14 2003-11-21 Technologica Sarl Production and hot forming of components of spheroidal graphite iron with elevated mechanical characteristics with an essentially bainitic structure
DE20306253U1 (en) * 2003-04-17 2003-06-26 Deutsche Bahn AG, 10785 Berlin Solid wheel for rail vehicles comprising isothermally treated bainitic cast iron with spheroidal graphite and microstructure containing austenite

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 0080, no. 19 (C - 207) 26 January 1984 (1984-01-26) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10266927B2 (en) 2012-07-23 2019-04-23 Ferry Capitain Alloy, corresponding part and manufacturing method

Also Published As

Publication number Publication date
FR2866351A1 (en) 2005-08-19
FR2866351B1 (en) 2006-04-28
EP1566459A2 (en) 2005-08-24
CN1670233A (en) 2005-09-21

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