CN107949649A - Ferrite cast iron with globular graphite - Google Patents

Ferrite cast iron with globular graphite Download PDF

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Publication number
CN107949649A
CN107949649A CN201680051021.3A CN201680051021A CN107949649A CN 107949649 A CN107949649 A CN 107949649A CN 201680051021 A CN201680051021 A CN 201680051021A CN 107949649 A CN107949649 A CN 107949649A
Authority
CN
China
Prior art keywords
cast iron
ferrite
ferrite cast
graphite
globular graphite
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.)
Pending
Application number
CN201680051021.3A
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Chinese (zh)
Inventor
H·米勒
L·施利默克
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.)
Ke Fu Foundry Co Ltd
Eickhoff Giesserei GmbH
Original Assignee
Ke Fu Foundry Co Ltd
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 Ke Fu Foundry Co Ltd filed Critical Ke Fu Foundry Co Ltd
Publication of CN107949649A publication Critical patent/CN107949649A/en
Pending 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
    • 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

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

Abstract

The present invention relates to a kind of ferrite cast iron for including globular graphite, the ferrite cast iron contains by mass percentage：3.4 to 3.8% carbon (C)；1.5 to 2.1% silicon (Si)；Manganese (Mn) no more than 0.25%；Sulphur (S) no more than 0.05%；Most 0.6% common accompanying element；Remaining is iron (Fe).In order to it is such comprising the ferrite cast iron of globular graphite in the case of obtain the notch shock energy of at least 20J at a temperature of 10 DEG C, the present invention proposes that the total amount of accompanying element chromium (Cr), vanadium (V), niobium (Nb) and titanium (Ti) is limited to 0.05% in quality.This causes the number of graphite ball in the cast iron to be less than or equal to 160/mm2.The invention further relates to the purposes for cold quick component of such cast iron, the purposes particularly in ship or wind power plant for cold quick component.

Description

Ferrite cast iron with globular graphite
Technical field
The present invention relates to a kind of ferrite cast iron for including globular graphite, the ferrite cast iron contains by mass percentage Have：
3.4 to 3.8% carbon (C)；
1.5 to 2.1% silicon (Si)；
Manganese (Mn) no more than 0.25%；
Sulphur (S) no more than 0.05%；
Common accompanying element no more than 0.6%；
Remaining is iron (Fe).
Background technology
Most often occur in ferrite cast iron and be typically derived from raw materials (waste material and/or the pig iron and/or regeneration Material) accompanying element be such as phosphorus (P), magnesium (Mg), chromium (Cr), nickel (Ni), molybdenum (Mo), copper (Cu), aluminium (Al), titanium (Ti), Vanadium (V), niobium (Nb), zirconium (Zr), antimony (Sb), tin (Sn), lead (Pb), cerium (Ce), bismuth (Bi), tellurium (Te) and rare earth element etc.. A part in these accompanying elements particularly negatively affects to be formed in the case where they are as carbide former Micro-structure.For this reason, the total content of accompanying element is normally limited in the case of the industrial ferrite cast iron comprising globular graphite Above-mentioned value.
With the relevant standard DIN-EN1535 of the ferrite cast iron comprising globular graphite by detailed chemical composition and into And accompanying element content leave for the producer decision, as long as the physical property issued in standard is complied with.
Ferrite cast iron comprising globular graphite is substantially the iron material with the micro-structure containing embedded globular graphite Material.This special micro-structure can obtain favourable performance, particularly in having 320-400N/ under 12 to 22% elongation mm2Relatively high tensile strength, and at a temperature of -20 DEG C to -40 DEG C have 10 to 12J high notch shock energy (reference, for example, according to standard DIN-EN-1563:2011 GJS-400-18-LT or GJS-350-22-LT).It is this can be with Relatively cheap material of very high reliability of technology production also shows high deformability, high cracking resistance and height before disabling Crack arrest ability.For this reason, this material is gathered applying for load, including low temperature ring especially suitable for component be subject to frequent cycle Border.
However, in some purposes, the notch shock energy of the 12J at -40 DEG C obtained so far is inadequate. So as to for example, according to EN ISO148-1:2010 standards measure Charpy sample (V notches), are used in arctic waters The regular notch required at a temperature of -10 DEG C of construction of the construction rule of ship or the wind power plant in extremely cold area operation Impact energy is at least 20J.So far, only in the austenitic cast iron containing a large amount of alloying elements expensive as nickel In the case of could realize this HI high impact energy.
The content of the invention
Therefore the purpose of the present invention is provide a kind of iron for including spherical graphite of type described in introductory song in a reliable fashion Ferrite cast iron, the ferrite cast iron have the notch shock energy of at least 20J at a temperature of -10 DEG C.
To realize the purpose, the present invention is proposed from the ferrite cast iron for including spherical graphite of type described in introductory song Accompanying element chromium, vanadium, the total amount of niobium and titanium are limited to 0.05% in quality.
It was surprisingly found that in the experiment targetedly carried out, this four are carbide Accompanying element has very big influence to obtainable notch shock energy under low temperature either alone or in combination, and is opening In the case of the ferrite cast iron comprising globular graphite that refers to of a piece, when ensuring the total of above-mentioned four kinds of accompanying elements in melt When being limited to 0.05% in quality, with the achievable notch shock energy of reliable technique can be increased at -10 DEG C 20J with On.
This is advantageously realized by means of the dispensing for setting and monitoring meticulously, to exclude to contain the specific of these accompanying elements Raw material, or these accompanying elements are introduced with the amount no more than above-mentioned maximum.
When in accordance with these rules, reliably establish and be less than or equal to often in the ferrite cast iron produced by this way The number of graphite of square millimeter 160.The reduction of known this number of graphite can increase notch shock energy.
Embodiment
Three concrete operations examples of the present invention are described more fully below：
Example 1：
Ferrite cast iron includes globular graphite and has following component：
Carbon (C)：3.600%
Silicon (Si):1.530%
Manganese (Mn)：0.198%
Sulphur (S)：0.007%
Phosphorus (P)：0.010%
Magnesium (Mg):0.052%
Nickel (Ni)：0.359%
Molybdenum (Mo)：0.001%
Copper (Cu)：0.010%
Aluminium (Al)：0.014%
Zirconium (Zr)：0.005%
Antimony (Sb)：0.001%
Tin (Sn)：0.001%
Lead (Pb)：0.001%
Cerium (Ce)：0.001%
Bismuth (Bi)：0.001%
Tellurium (Te)：0.002%
Chromium (Cr)：0.028%
Titanium (Ti)：0.003%
Vanadium (V)：0.002%
Niobium (Nb)：0.001%
Remaining is iron (Fe).
In the case of such component, in the ferrite cast iron produced in this way, 160/mm is established2Graphite nodule Quantity and the notch shock energy more than 20J at a temperature of -10 DEG C.
Example 2：
Ferrite cast iron includes globular graphite and has following component：
Carbon (C)：3.580%
Silicon (Si):1.600%
Manganese (Mn)：0.124%
Sulphur (S)：0.007%
Phosphorus (P)：0.011%
Magnesium (Mg):0.060%
Nickel (Ni)：0.208%
Molybdenum (Mo)：0.001%
Copper (Cu)：0.011%
Aluminium (Al)：0.012%
Zirconium (Zr)：0.005%
Antimony (Sb)：0.001%
Tin (Sn)：0.001%
Lead (Pb)：0.001%
Cerium (Ce)：0.003%
Bismuth (Bi)：0.002%
Tellurium (Te)：0.002%
Chromium (Cr)：0.015%
Titanium (Ti)：0.003%
Vanadium (V)：0.002%
Niobium (Nb)：0.002%
Remaining is iron (Fe).
In the case of such component, in the ferrite cast iron produced in this way, 130/mm is established2Graphite nodule Quantity and the notch shock energy more than 20J at a temperature of -10 DEG C.
Example 3：
Ferrite cast iron includes globular graphite and has following component：
Carbon (C)：3.550%
Silicon (Si):1.600%
Manganese (Mn)：0.202%
Sulphur (S)：0.006%
Phosphorus (P)：0.014%
Magnesium (Mg):0.034%
Nickel (Ni)：0.436%
Molybdenum (Mo)：0.001%
Copper (Cu)：0.004%
Aluminium (Al)：0.014%
Zirconium (Zr)：0.006%
Antimony (Sb)：0.001%
Tin (Sn)：0.001%
Lead (Pb)：0.001%
Cerium (Ce)：0.006%
Bismuth (Bi)：0.002%
Tellurium (Te)：0.002%
Chromium (Cr)：0.011%
Titanium (Ti)：0.004%
Vanadium (V)：0.002%
Niobium (Nb)：0.003%
Remaining is iron (Fe).
In the case of such component, in the ferrite cast iron produced in this way, 110/mm is established2Graphite nodule Quantity and the notch shock energy more than 20J at a temperature of -10 DEG C.

Claims (2)

1. a kind of ferrite cast iron for including globular graphite, the ferrite cast iron contain by mass percentage：
3.4 to 3.8% carbon (C)；
1.5 to 2.1% silicon (Si)；
Manganese (Mn) no more than 0.25%；
Sulphur (S) no more than 0.05%；
Common accompanying element no more than 0.6%；
Remaining is iron (Fe),
It is characterized in that, accompanying element chromium (Cr), vanadium (V), niobium (Nb) and titanium (Ti) are limited to 0.05% in quality altogether.
2. a kind of purposes of ferrite cast iron according to claim 1, the ferrite cast iron is used for cold quick element, especially Ground is used for cold quick element in ship or wind power plant.
CN201680051021.3A 2015-07-22 2016-07-20 Ferrite cast iron with globular graphite Pending CN107949649A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102015111915.3A DE102015111915A1 (en) 2015-07-22 2015-07-22 Ferritic cast iron with nodular graphite
DE102015111915.3 2015-07-22
PCT/EP2016/067271 WO2017013165A1 (en) 2015-07-22 2016-07-20 Ferritic cast iron having spheroidal graphite

Publications (1)

Publication Number Publication Date
CN107949649A true CN107949649A (en) 2018-04-20

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CN201680051021.3A Pending CN107949649A (en) 2015-07-22 2016-07-20 Ferrite cast iron with globular graphite

Country Status (9)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110819885A (en) * 2019-12-17 2020-02-21 湘电风能有限公司 High-strength high-toughness low-temperature nodular cast iron for wind turbine generator

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108588545B (en) * 2018-03-19 2019-09-13 河北硕凯铸造有限公司 A kind of GGG70L spheroidal graphite cast-iron and preparation method thereof
CN111560560A (en) * 2020-06-30 2020-08-21 河南中原吉凯恩气缸套有限公司 Method for centrifugally casting high-strength nodular cast iron cylinder sleeve
CN112410654A (en) * 2020-10-30 2021-02-26 江苏华龙铸铁型材有限公司 Columnar nodular cast iron material and vertical continuous casting process thereof

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GB2079315A (en) * 1980-07-01 1982-01-20 Creusot Loire Ferritic spheroidal-graphite iron for casting thick sections without segregation
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
DE3807455C2 (en) * 1987-03-09 1996-11-07 Hitachi Metals Ltd Nodular cast iron with high impact strength and method for its treatment
JPH09125190A (en) * 1995-10-31 1997-05-13 Hitachi Metals Ltd Spheroidal graphite cast iron combining high proof stress with high ductility
US6126713A (en) * 1996-10-24 2000-10-03 Hitachi Metals, Ltd. Additive for use in producing spheroidal graphite cast iron
CN103205624A (en) * 2013-04-16 2013-07-17 常熟建华模具科技股份有限公司 Graphite cast iron glass mould of ferritic matrix and manufacturing method of mould
CN103436772A (en) * 2013-09-05 2013-12-11 常州华德机械有限公司 Low-temperature tough ferrite nodular cast iron of 60 DEG C below zero and preparation method thereof
CN103898396A (en) * 2012-12-26 2014-07-02 江苏吉鑫风能科技股份有限公司 Preparation method of megawatt wind power high-strength high-toughness low-temperature (-30 DEG C) spheroidal graphite iron casting
CN104024450A (en) * 2011-12-28 2014-09-03 日立金属株式会社 Spheroidal graphite cast iron having exceptional strength and ductility and method for manufacturing same
GB2513253A (en) * 2013-03-29 2014-10-22 Hitachi Shipbuilding Eng Co Spheroidal graphite cast iron and method of manufacturing the same
WO2014208240A1 (en) * 2013-06-28 2014-12-31 株式会社リケン Spheroidal graphite cast iron

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JPS5665963A (en) * 1979-10-30 1981-06-04 Hitachi Metals Ltd Nodular graphite cast iron and its manufacture
GB2079315A (en) * 1980-07-01 1982-01-20 Creusot Loire Ferritic spheroidal-graphite iron for casting thick sections without segregation
DE3807455C2 (en) * 1987-03-09 1996-11-07 Hitachi Metals Ltd Nodular cast iron with high impact strength and method for its treatment
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 (en) * 1995-10-31 1997-05-13 Hitachi Metals Ltd Spheroidal graphite cast iron combining high proof stress with high ductility
US6126713A (en) * 1996-10-24 2000-10-03 Hitachi Metals, Ltd. Additive for use in producing spheroidal graphite cast iron
CN104024450A (en) * 2011-12-28 2014-09-03 日立金属株式会社 Spheroidal graphite cast iron having exceptional strength and ductility and method for manufacturing same
CN103898396A (en) * 2012-12-26 2014-07-02 江苏吉鑫风能科技股份有限公司 Preparation method of megawatt wind power high-strength high-toughness low-temperature (-30 DEG C) spheroidal graphite iron casting
GB2513253A (en) * 2013-03-29 2014-10-22 Hitachi Shipbuilding Eng Co Spheroidal graphite cast iron and method of manufacturing the same
CN103205624A (en) * 2013-04-16 2013-07-17 常熟建华模具科技股份有限公司 Graphite cast iron glass mould of ferritic matrix and manufacturing method of mould
WO2014208240A1 (en) * 2013-06-28 2014-12-31 株式会社リケン Spheroidal graphite cast iron
CN103436772A (en) * 2013-09-05 2013-12-11 常州华德机械有限公司 Low-temperature tough ferrite nodular cast iron of 60 DEG C below zero and preparation method thereof

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110819885A (en) * 2019-12-17 2020-02-21 湘电风能有限公司 High-strength high-toughness low-temperature nodular cast iron for wind turbine generator

Also Published As

Publication number Publication date
BR112018001193A2 (en) 2018-09-11
WO2017013165A1 (en) 2017-01-26
EP3325682A1 (en) 2018-05-30
US20180209020A1 (en) 2018-07-26
KR20180031703A (en) 2018-03-28
JP2018527470A (en) 2018-09-20
DE102015111915A1 (en) 2017-01-26
MX2018000935A (en) 2018-09-27

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