EP2052094B1 - Hochsiliziumhaltiger stahlwerkstoff zur herstellung von kolbenringen und zylinderlaufbuchsen - Google Patents

Hochsiliziumhaltiger stahlwerkstoff zur herstellung von kolbenringen und zylinderlaufbuchsen Download PDF

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Publication number
EP2052094B1
EP2052094B1 EP07724936.5A EP07724936A EP2052094B1 EP 2052094 B1 EP2052094 B1 EP 2052094B1 EP 07724936 A EP07724936 A EP 07724936A EP 2052094 B1 EP2052094 B1 EP 2052094B1
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EP
European Patent Office
Prior art keywords
steel material
piston rings
steel
minute
cast 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.)
Not-in-force
Application number
EP07724936.5A
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German (de)
English (en)
French (fr)
Other versions
EP2052094A1 (de
Inventor
Laszlo Pelsoeczy
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.)
Federal Mogul Burscheid GmbH
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Federal Mogul Burscheid GmbH
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Publication of EP2052094A1 publication Critical patent/EP2052094A1/de
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Publication of EP2052094B1 publication Critical patent/EP2052094B1/de
Not-in-force 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
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
    • 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

Definitions

  • the present invention relates to a silicon-alloyed cast steel material which is particularly suitable for piston rings and cylinder liners. Furthermore, the invention relates to piston rings and cylinder liners, which comprise such a steel material as the base body. The invention further relates to a method for producing a silicon-alloyed cast steel material.
  • Piston rings seal the gap between the piston head and the cylinder wall with respect to the combustion chamber.
  • the piston piston ring slides on the one hand with its outer peripheral surface in constant resilient engagement against the cylinder wall, on the other hand slides the piston ring, due to the tilting movements of the piston, oscillating in its Kolbenringnut, with its edges alternately at the top or bottom Abut groove flank of the piston ring groove.
  • sliding against each other occurs depending on the material, a more or less severe wear, which can lead to so-called scuffing, scoring and finally to a destruction of the engine in a dry run.
  • Piston rings In particular compression rings, are subject to increasing loads in highly stressed engines, including compression peak pressure, combustion temperature, EGR, lubricating film reduction, which significantly affect their performance characteristics, such as wear, fire resistance, microwelding and corrosion resistance.
  • the DE 3717297 a cast-iron piston ring as the only material with cast iron whitened in its outer peripheral surface only in a region caused by the cast iron material being exposed to a high energy density radiation and having a thermally charged intermediate region formed between the cast iron base metal and the white solidified region.
  • JP 60-155645 concerns a forged steel for disc brakes among others with the proportions C: 0.1-0.6%, Si: 0.8-5% and Ni: 0.2-5%, the high braking effect with simultaneous resistance to wear and heat to reach.
  • the cast iron materials according to the prior art have a high risk of breakage, so that there is often ring breakage when using existing materials. Increased mechanical-dynamic loads lead to shorter lifetimes of piston rings or cylinder liners. Likewise, it comes to heavy wear and corrosion on the tread and flank.
  • Steel piston rings are made of profile wire.
  • the supplied profile wire is wound around, cut open and pulled over a "non-circular" mandrel. On this mandrel receives the piston ring by an annealing process its desired non-circular shape, whereby the required tangential forces are set.
  • Another disadvantage of the production of piston rings made of steel is that from a certain diameter, the ring production (winding) made of steel wire is no longer possible.
  • cast iron piston rings are already cast out of round so that they have an ideal shape right from the start.
  • Cast iron has a much lower melting temperature than steel. The difference can be up to 350 ° C, depending on the chemical composition. Cast iron is therefore easier to melt and cast, since a lower melting temperature means a lower casting temperature and thus a smaller shrinkage due to shrinkage, whereby the cast material has fewer voids or hot and cold cracks. A lower casting temperature also leads to a lower load on the molding material (erosion, gas porosity, sand inclusions) and the furnace and lower melt costs.
  • the steel material should be inexpensive to produce using the techniques that are also used for the production of cast iron.
  • the object is achieved by a cast iron material according to claim 1, a piston ring according to claim 2, a cylinder liner according to claim 4 and a method according to claim 6.
  • a cast iron material according to claim 1 a piston ring according to claim 2
  • a cylinder liner according to claim 4 a method according to claim 6.
  • the melting temperature of the iron material depends not only on its carbon content, but also on the "degree of saturation".
  • S c C / 4 . 26 - 1 / 3 Si + P ,
  • a saturation level of 1.0 is usually desired, wherein the cast iron has a melting temperature of 1150 ° C.
  • the degree of saturation of steel is about 0.18, depending on the chemical composition.
  • Eutectic steel has a melting temperature of 1500 ° C.
  • the saturation level can be significantly influenced by the Si and / or P content. For example, a 3% by weight higher content of silicon will be similar to a 1% higher C content. It is thus possible to produce a steel material with a C content of 1% by weight and 9.78% by weight of silicon, which has the same melting temperature as cast iron with a degree of saturation of 1.0 (C: 3.26% by weight). -%, Si: 3.0 wt .-%).
  • a steel material according to the invention is characterized by the following composition in% by weight: C: 0.5 to 1.2 Mo: 0.1 to 0.5 Nb: 0 to 0.005 Si: 3.0 to 10.0 Mn: 0.1 to 0.5 Ti: 0 to 0.01 Ni: 2.0 to 3.5 Al: 0 to 0.01 V: 0 to 0.05 P: 0 to 0.02 Co: 0 to 0.02 Sn: 0 to 0.05 S: 0 to 0.035 Cu: 0 to 0.05 Mg: 0 to 0.01 Cr: 0 to 3.0 Remainder: Fe and production-related impurities, wherein the steel material does not contain tungsten.
  • the Stahlwerkstotf may further contain at least one element which is selected from the group consisting of tantalum, boron, tellurium or bismuth or combinations thereof, in particular in an amount of up to 0.1 wt .-%.
  • the steel material may contain at least one additive selected from the group consisting of aluminum, zirconium, antimony, calcium, strontium, lanthanum. Cerium, rare earth metals or combinations thereof, preferably in an amount of up to 1 wt .-%.
  • Rare earth metals, as well as NiMg, NiSiMg, FeMg or FeSiMg, are used as nucleants and / or for deoxidation. Particularly preferred is the addition of FeSiMg.
  • Rare earth metals also include mixtures of lanthanides with oxides of other metals. These elements and additives may be impurities due to production or added to the melt during the process for producing the steel material according to the invention.
  • ingredients are included such that the sum of all said or not explicitly mentioned starting materials, ingredients, ingredients, elements, additives in each case give 100 wt .-%.
  • the proportion of starting materials Ingredients, ingredients, elements and additives may be adjusted by various methods known to those skilled in the art.
  • the chemical composition is adjusted in particular depending on the workpiece to be produced.
  • the steel material according to the present invention is particularly suitable for the production of piston rings and / or cylinder liners.
  • Prefabricated piston rings and cylinder liners are coated on the flank and / or treads.
  • the steel material according to the invention reduces the tendency of the workpieces produced therefrom to change their shape under high heat and thus ensures a permanently high performance and, moreover, reduces the oil consumption. Due to its outstanding properties, the steel material according to the invention is therefore particularly suitable for the production of piston rings in the automotive and LB range, or for valve seat rings and Guides.
  • drive liners LWDs
  • pads for disc brake pads Black Plates
  • rings for cooling units pump nozzles
  • liners protective bushings or parts for the chemical industry
  • the steel material according to the invention furthermore has the advantage that the production of, for example, steel piston rings and cylinder liners with the machines and technologies necessary for the production of cast iron workpieces is made possible.
  • the manufacturing costs correspond to those of cast iron piston rings or cylinder liners, which offers the manufacturer a cost advantage and a better added value.
  • material parameters can be set freely by the supplier.
  • a process is also provided for producing a steel material in which a melt preferably has the abovementioned chemical compositions.
  • the chemical composition of the melt is adjusted as needed by adding alloys.
  • the tapping temperature of the melt is between 1480 and 1640 ° C.
  • the properties of the melt can be controlled before casting or during casting by inoculation of the melt.
  • 650 g FeSiMg and / or 130 g Al and / or 650 g FeSiZr per 130 kg melt are used as nucleating agent.
  • a blank is produced with solidification of the melt.
  • the blank can be cast with methods known in the art, such as centrifugal casting, continuous casting, stamp pressing, croning or green sand molding as a single or multiple blank, then heat treated and further processed into a piston ring or cylinder liner.
  • methods known in the art such as centrifugal casting, continuous casting, stamp pressing, croning or green sand molding as a single or multiple blank, then heat treated and further processed into a piston ring or cylinder liner.
  • the person skilled in the art will select the appropriate method due to the purpose of the blank and its general knowledge.
  • a heat treatment includes austenitizing the steel material at 900 to 1000 ° C for one hour, quenching the steel material in oil or other suitable quench medium, and tempering the steel material at 420 to 470 ° C for one hour.
  • a material which has the following composition (% by weight): C: 1.05 Mo: 0.487 Nb: 0.0027 Si: 5.91 Mn: .464 Ti: 0.0074 Ni: 2.94 Al: 0.0082 V: 0.0148 P: 0.0171 Co: 0.0141 Sn: 0.0082 S: 0.0285 Cu: 0.0433 W: 0 Cr: 0.0331 Remainder: Fe and manufacturing impurities.
  • the tapping temperature is 1560 ° C.
  • the casting temperature is 1448 ° C.
  • the melt is seeded with 650 g FeSiMg per 130 kg melt.
  • Table 1 shows the mechanical properties of the blank according to the invention in the tempered state.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Heat Treatment Of Articles (AREA)
EP07724936.5A 2006-08-17 2007-05-07 Hochsiliziumhaltiger stahlwerkstoff zur herstellung von kolbenringen und zylinderlaufbuchsen Not-in-force EP2052094B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006038670A DE102006038670B4 (de) 2006-08-17 2006-08-17 Hochsiliziumhaltiger Stahlwerkstoff zur Herstellung von Kolbenringen und Zylinderlaufbuchsen
PCT/EP2007/004012 WO2008019717A1 (de) 2006-08-17 2007-05-07 Hochsiliziumhaltiger stahlwerkstoff zur herstellung von kolbenringen und zylinderlaufbuchsen

Publications (2)

Publication Number Publication Date
EP2052094A1 EP2052094A1 (de) 2009-04-29
EP2052094B1 true EP2052094B1 (de) 2016-11-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP07724936.5A Not-in-force EP2052094B1 (de) 2006-08-17 2007-05-07 Hochsiliziumhaltiger stahlwerkstoff zur herstellung von kolbenringen und zylinderlaufbuchsen

Country Status (7)

Country Link
US (1) US8241559B2 (pt)
EP (1) EP2052094B1 (pt)
JP (1) JP5669392B2 (pt)
BR (1) BRPI0716492B1 (pt)
DE (1) DE102006038670B4 (pt)
PT (1) PT2052094T (pt)
WO (1) WO2008019717A1 (pt)

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CN102653848A (zh) * 2008-03-27 2012-09-05 日立金属株式会社 用于内燃机的活塞环材料
FI125458B (fi) * 2008-05-16 2015-10-15 Outokumpu Oy Ruostumaton terästuote, tuotteen käyttö ja menetelmä sen valmistamiseksi
US20100119872A1 (en) * 2008-11-13 2010-05-13 Lundeen Calvin D Iron-based hard facing alloys with rare earth additions
DE102009010728C5 (de) * 2009-02-26 2019-08-14 Federal-Mogul Burscheid Gmbh Kolbenringe und Zylinderlaufbuchsen
DE102009010726B3 (de) 2009-02-26 2010-12-09 Federal-Mogul Burscheid Gmbh Kolbenringe und Zylinderlaufbuchsen
DE102009010473A1 (de) * 2009-02-26 2010-11-18 Federal-Mogul Burscheid Gmbh Stahlwerkstoffzusammensetzung zur Herstellung von Kolbenringen und Zylinderlaufbuchsen
DE102009010727B3 (de) * 2009-02-26 2011-01-13 Federal-Mogul Burscheid Gmbh Stahlgusswerkstoffzusammensetzung zur Herstellung von Kolbenringen und Zylinderlaufbuchsen
DE102009015009B3 (de) 2009-03-26 2010-12-09 Federal-Mogul Burscheid Gmbh Kolbenring
DE102009015008B3 (de) * 2009-03-26 2010-12-02 Federal-Mogul Burscheid Gmbh Kolbenringe und Zylinderlaufbuchsen
EP2785882B1 (en) 2011-11-30 2016-01-20 Federal-Mogul Corporation High modulus wear resistant gray cast iron for piston ring applications
CN102950430B (zh) * 2012-10-25 2016-01-27 安徽蓝博旺机械集团液压流体机械有限责任公司 耐腐蚀微动阀阀体的制备方法
CN103556042A (zh) * 2013-10-23 2014-02-05 德州宏森机械有限公司 一种用于渣浆泵过流部件上的高铬铸铁铸造及热处理工艺
CN103667937A (zh) * 2013-11-08 2014-03-26 张超 一种用于阀体的抗磨合金钢材料及其制备方法
WO2015099217A1 (ko) * 2013-12-24 2015-07-02 주식회사 포스코 연질 고규소 강판 및 그 제조방법
CN104087867B (zh) * 2014-07-31 2016-08-24 宁国市宁武耐磨材料有限公司 一种球磨机用高耐磨抗氧化耐磨球
CN105369116B (zh) * 2014-08-29 2017-03-08 中原内配集团股份有限公司 一种离心铸造生产的花斑气缸套及其生产工艺
CN104404386B (zh) * 2014-12-24 2016-08-24 宁波市鄞州商业精密铸造有限公司 一种铁合金制备方法
CN104911492B (zh) * 2015-05-11 2017-02-01 安徽先锋门业科技有限公司 一种使用寿命长的伸缩门
CN107514316A (zh) * 2015-05-18 2017-12-26 夏志清 一种柴油发动机气缸盖
BR102016001063B1 (pt) 2016-01-18 2021-06-08 Amsted Maxion Fundição E Equipamentos Ferroviários S/A liga de aço para componentes ferroviários, e processo de obtenção de uma liga de aço para componentes ferroviários
CN106119680B (zh) * 2016-07-15 2018-07-27 中水淮河规划设计研究有限公司 一种耐海水腐蚀的稀土合金铸铁
WO2018128775A1 (en) * 2017-01-06 2018-07-12 Materion Corporation Piston compression rings of copper-nickel-tin alloys
JP7010474B2 (ja) * 2018-01-10 2022-02-10 国立研究開発法人物質・材料研究機構 断熱材料、その製造方法および内燃機関
CN111074146B (zh) * 2019-12-11 2021-08-10 安徽瑞泰新材料科技有限公司 一种矿山用低铬铸铁磨球及其制备方法
CN113088795A (zh) * 2019-12-23 2021-07-09 岳阳市永金起重永磁铁有限公司 一种电磁铁用硅钢材料及其制备方法
CN111349860A (zh) * 2020-05-11 2020-06-30 江苏联峰实业有限公司 一种耐磨损弹簧钢及其制备方法
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Also Published As

Publication number Publication date
DE102006038670B4 (de) 2010-12-09
WO2008019717A1 (de) 2008-02-21
US20100192895A1 (en) 2010-08-05
DE102006038670A1 (de) 2008-02-21
PT2052094T (pt) 2016-12-28
JP5669392B2 (ja) 2015-02-12
BRPI0716492B1 (pt) 2018-09-11
JP2010501044A (ja) 2010-01-14
US8241559B2 (en) 2012-08-14
BRPI0716492A2 (pt) 2014-02-25
EP2052094A1 (de) 2009-04-29

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