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EP3325682A1 - Fonte ferritique à graphite spheroïdal - Google Patents

Fonte ferritique à graphite spheroïdal

Info

Publication number
EP3325682A1
EP3325682A1 EP16750638.5A EP16750638A EP3325682A1 EP 3325682 A1 EP3325682 A1 EP 3325682A1 EP 16750638 A EP16750638 A EP 16750638A EP 3325682 A1 EP3325682 A1 EP 3325682A1
Authority
EP
European Patent Office
Prior art keywords
cast iron
ferritic
spheroidal graphite
accompanying elements
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Withdrawn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
EP16750638.5A
Other languages
German (de)
English (en)
Inventor
Hauke MÜLLER
Lukas SCHLIMOK
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.)
Eickhoff Giesserei GmbH
Original Assignee
Eickhoff Giesserei GmbH
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 Eickhoff Giesserei GmbH filed Critical Eickhoff Giesserei GmbH
Publication of EP3325682A1 publication Critical patent/EP3325682A1/fr
Withdrawn legal-status Critical Current

Links

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
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/10—Making spheroidal graphite cast-iron
    • 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
    • C21D5/00—Heat treatments of cast-iron
    • C21D5/04—Heat treatments of cast-iron of white cast-iron
    • C21D5/06—Malleabilising
    • C21D5/14—Graphitising
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C37/00—Cast-iron alloys
    • C22C37/06—Cast-iron alloys containing chromium
    • C22C37/08—Cast-iron alloys containing chromium with nickel
    • 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
    • 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
    • C21D2211/005—Ferrite
    • 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
    • C21D2211/006—Graphite

Definitions

  • the invention relates to ferritic spheroidal graphite cast iron, contained in mass%:
  • ferritic cast iron accompanying elements which mostly come from the starting materials used (scrap and / or pig iron and / or circulating material), for example, phosphorus (P), magnesium (Mg), chromium (Cr), nickel (Ni), Molybdenum (Mo), copper (Cu), aluminum (AI), titanium (Ti), vanadium (V), niobium (Nb), zirconium (Zr), antimony (Sb), tin (Sn), lead (Pb), Cerium (Ce), bismuth (Bi), tellurium (Te) and other rare earths dergl.
  • P phosphorus
  • Mg magnesium
  • Cr chromium
  • Ni nickel
  • Cu copper
  • aluminum (AI) titanium
  • Ti vanadium
  • Nb niobium
  • Zr zirconium
  • antimony Sb
  • lead (Pb) Cerium (Ce), bismuth (Bi), tellurium (
  • ferritic spheroidal graphite cast iron is an iron material that has a structure with interspersed spherical graphite.
  • This special microstructure results in advantageous properties, in particular a relatively high tensile strength of 320-400 N / mm 2 at an elongation of 12 to 22% and a high impact energy of 10 to 12J at temperatures from -20 ° C to -40 ° C (compare eg GJS-400-18-LT or GJS-350-22-LT according to the standard DIN-EN-1563: 201 1).
  • This relatively inexpensive material which can be produced with high process reliability is also distinguished by its high deformability before failure, by a high resistance to cracking and by a high crack absorption capacity.
  • the invention proposes, starting from a ferritic spheroidal graphite cast iron of the type mentioned that the accompanying elements chromium, vanadium, niobium and titanium are limited to a total of 0.05 mass%.
  • Nodular cast iron, ferritic having the following composition:
  • Nodular cast iron, ferritic having the following composition:
  • Nodular cast iron, ferritic having the following composition:

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Wind Motors (AREA)
  • Heat Treatment Of Steel (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne une fonte ferritique à graphite sphéroïdal, contenant, en pourcentages en masse : 3,4 % à 3,8 % de carbone (C), 1,5 % à 2,1 % de silicium, au maximum 0,25 % de manganèse (Mn), au maximum 0,05 % de soufre (S), jusqu'à 0,6 % de soufre (S), jusqu'à 0,6 % d'éléments d'accompagnement usuels, le reste étant du fer (Fe). L'invention vise à obtenir, pour une telle fonte ferritique à graphite sphéroïdal, une énergie absorbée lors d'un essai de choc sur éprouvette entaillée d'au moins 20 J à une température de -10 °C. À cet effet, la somme des éléments d'accompagnement que sont le chrome (Cr), le vanadium (V), le niobium (Nb) et le titane (Ti) est limitée à 0,05 % en masse. On obtient ainsi, dans cette fonte, un nombre de billes de graphite inférieur ou égal à 160/mm². L'invention concerne en outre l'utilisation d'une telle fonte pour des éléments structuraux sensibles aux basses températures, en particulier sur des navires ou des éoliennes.
EP16750638.5A 2015-07-22 2016-07-20 Fonte ferritique à graphite spheroïdal Withdrawn EP3325682A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015111915.3A DE102015111915A1 (de) 2015-07-22 2015-07-22 Ferritisches Gusseisen mit Kugelgraphit
PCT/EP2016/067271 WO2017013165A1 (fr) 2015-07-22 2016-07-20 Fonte ferritique à graphite spheroïdal

Publications (1)

Publication Number Publication Date
EP3325682A1 true EP3325682A1 (fr) 2018-05-30

Family

ID=56683892

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16750638.5A Withdrawn EP3325682A1 (fr) 2015-07-22 2016-07-20 Fonte ferritique à graphite spheroïdal

Country Status (9)

Country Link
US (1) US20180209020A1 (fr)
EP (1) EP3325682A1 (fr)
JP (1) JP2018527470A (fr)
KR (1) KR20180031703A (fr)
CN (1) CN107949649A (fr)
BR (1) BR112018001193A2 (fr)
DE (1) DE102015111915A1 (fr)
MX (1) MX2018000935A (fr)
WO (1) WO2017013165A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108588545B (zh) * 2018-03-19 2019-09-13 河北硕凯铸造有限公司 一种ggg70l球墨铸铁及其制备方法
CN110819885A (zh) * 2019-12-17 2020-02-21 湘电风能有限公司 一种风电机组用高强度高韧性低温球墨铸铁
CN111560560A (zh) * 2020-06-30 2020-08-21 河南中原吉凯恩气缸套有限公司 一种离心铸造高强度球墨铸铁气缸套的方法
CN112410654A (zh) * 2020-10-30 2021-02-26 江苏华龙铸铁型材有限公司 一种柱状球墨铸铁材料及其垂直连铸法铸造工艺

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6030735B2 (ja) * 1979-10-30 1985-07-18 日立金属株式会社 球状黒鉛鋳鉄およびその製造方法
FR2486100A1 (fr) * 1980-07-01 1982-01-08 Creusot Loire Pieces massives en fonte a graphite spheroidal
DE3807455C2 (de) * 1987-03-09 1996-11-07 Hitachi Metals Ltd Nodulares Gußeisen hoher Schlagfestigkeit sowie Verfahren zu dessen Behandlung
JPS6439322A (en) * 1987-08-06 1989-02-09 Kawasaki Steel Co Production of thick-walled ductile cast iron having excellent ductility and toughness
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
JPH09125190A (ja) * 1995-10-31 1997-05-13 Hitachi Metals Ltd 高耐力、高延性球状黒鉛鋳鉄
US6126713A (en) * 1996-10-24 2000-10-03 Hitachi Metals, Ltd. Additive for use in producing spheroidal graphite cast iron
CN104024450B (zh) * 2011-12-28 2017-03-29 日立金属株式会社 强度和韧性优异的球状石墨铸铁及其制造方法
CN103898396B (zh) * 2012-12-26 2016-02-24 江苏吉鑫风能科技股份有限公司 兆瓦级风电高强高韧-30℃低温球墨铸铁件的制备方法
JP5506973B1 (ja) * 2013-03-29 2014-05-28 日立造船株式会社 球状黒鉛鋳鉄およびその製造方法
CN103205624A (zh) * 2013-04-16 2013-07-17 常熟建华模具科技股份有限公司 铁素体基体的石墨铸铁玻璃模具及其制备方法
JP5655115B1 (ja) * 2013-06-28 2015-01-14 株式会社リケン 球状黒鉛鋳鉄
CN103436772B (zh) * 2013-09-05 2016-03-30 常州华德机械有限公司 -60℃低温韧性铁素体球墨铸铁及其制备方法

Also Published As

Publication number Publication date
MX2018000935A (es) 2018-09-27
US20180209020A1 (en) 2018-07-26
KR20180031703A (ko) 2018-03-28
DE102015111915A1 (de) 2017-01-26
JP2018527470A (ja) 2018-09-20
CN107949649A (zh) 2018-04-20
WO2017013165A1 (fr) 2017-01-26
BR112018001193A2 (pt) 2018-09-11

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