EP2401533B1 - Composition de matériau à base d'acier pour fabriquer des segments de piston et des chemises de cylindre - Google Patents

Composition de matériau à base d'acier pour fabriquer des segments de piston et des chemises de cylindre Download PDF

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Publication number
EP2401533B1
EP2401533B1 EP09744326.1A EP09744326A EP2401533B1 EP 2401533 B1 EP2401533 B1 EP 2401533B1 EP 09744326 A EP09744326 A EP 09744326A EP 2401533 B1 EP2401533 B1 EP 2401533B1
Authority
EP
European Patent Office
Prior art keywords
weight
max
piston ring
steel material
material composition
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
EP09744326.1A
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German (de)
English (en)
Other versions
EP2401533A1 (fr
Inventor
Laszlo Persoeczy
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
Original Assignee
Federal Mogul Burscheid 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
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Application filed by Federal Mogul Burscheid GmbH filed Critical Federal Mogul Burscheid GmbH
Publication of EP2401533A1 publication Critical patent/EP2401533A1/fr
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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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
    • C21D1/18—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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races
    • 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
    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
    • 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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon

Definitions

  • the present invention relates to a piston ring. Moreover, the present invention relates to a method for producing the piston rings according to the invention.
  • piston rings seal the gap between the piston head and the cylinder wall with respect to the combustion chamber.
  • 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 For the production of highly stressed parts of internal combustion engines, such as piston rings, usually cast iron materials or cast iron alloys are used. Piston rings, particularly compression rings, are subject to increasing loads in highly stressed engines, including compression peak pressure, combustion temperature, EGR, and lubricating film reduction, which significantly affect their performance characteristics, such as wear, fire resistance, microwelding, and corrosion resistance.
  • cast iron materials according to the prior art have a high risk of breakage, so that it often comes to ring breaking when using existing materials. Increased mechanical-dynamic loads lead to shorter lifetimes of piston rings. Likewise, it comes to heavy wear and corrosion on the tread and flank.
  • piston rings made of high-quality steel tempered and high-alloyed, such as material 1.4112.
  • high-quality steel tempered and high-alloyed, such as material 1.4112.
  • ferrous materials with less than 2.08 wt .-% carbon as steel If the carbon content is higher, this is referred to as cast iron.
  • Steel materials have better strength and toughness properties compared with cast iron, since there is no disturbance due to free graphite in the basic structure.
  • 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 pour, as 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 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 degree of saturation can be significantly influenced by the Si 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 .-%).
  • Piston rings of high silicon steel cast material are known in the art. However, the silicon present in higher amounts adversely affects the hardenability of the material as its austenite transformation temperature "Ac3" is increased.
  • piston rings with the features of claim 1. Furthermore, the present invention provides a method having the features of claim 3 to produce such a piston ring. Preferred embodiments are described in the dependent claims.
  • the piston rings according to the invention comprise, as the base body, a steel material composition which contains the following elements in the stated proportion: C: 0.5 - 1.2 Wt .-% Mn: 3.0 - 15.0 Wt .-% Si: 2,0 - 10,0 Wt .-% and optional Cr: 0 - 3.0 Wt .-%, al: Max. 0.02 Wt .-%, P: Max. 0.1 Wt .-%, B: Max. 0.1 Wt .-%, S: Max. 0.05 Wt .-%, Cu: Max. 2.0 Wt .-%, Sn: Max. 0.05 Wt .-%, Not a word: Max. 3.0 Wt .-%, Ti: Max. 1.5 Wt .-%, Nb: Max. 0.05 Wt .-%, V: Max. 1.5 Wt .-%, Ni: Max. 4.0 Wt .-%, W: Max. 1.5 Wt .-%,
  • Residual iron at least 72 wt .-% and common impurities, wherein the sum of the proportions of Nb, Ti, V and W is at most 1.5 wt .-%, and the steel material composition of the invention only elements selected from the group consisting of Al, B, C, Cr, Cu, Fe, Mn , Mo, Nb, Ni, P, S, Si, Sn, Ti, V and W, the sum of these elements being 100 wt%.
  • the contained manganese functions as an austenite former that expands the gamma region and shifts the austenite transition temperature Ac3 upwards. In this way, an improved hardenability of the steel material is achieved according to the invention.
  • the piston rings according to the invention have a reduced tendency to change their shape under high heat and thus have a permanently high performance and also reduce the oil consumption.
  • the steel piston rings according to the invention furthermore have the advantage that their production with the machines and technologies necessary for the production of cast iron workpieces is made possible.
  • the production costs are equivalent to those of cast iron piston rings, which offers the manufacturer a cost advantage and a better added value.
  • material parameters can be set freely by the supplier.
  • starting materials for example, steel scrap, circulation material and alloying materials can be used.
  • the melting process takes place in an oven, preferably a cupola. Subsequently, a blank is produced with solidification of the melt.
  • the piston ring can be cast with methods known in the art, such as centrifugal casting, continuous casting, stamp pressing, croning or preferably green sand molds.
  • the mold After cooling the piston ring, the mold is ejected and the blank obtained cleaned.
  • the quenching medium used is preferably oil.
  • nitriding of the resulting piston ring can take place after the aforementioned method steps. This can be done for example by gas nitriding, plasma nitriding or pressure nitriding.
  • a piston ring was produced from a steel material composition according to the invention of the following composition: al: 0,002 Wt .-% P: 0.03 Wt .-% B: 0.1 Wt .-% S: 0.009 Wt .-% C: 0.7 Wt .-% Si: 3.0 Wt .-% Cr: 2.0 Wt .-% Sn: 0.001 Wt .-% Cu: 0.05 Wt .-% Ti: 0,007 Wt .-% Mn: 5.0 Wt .-% V: 0,015 Wt .-% Not a word: 0.5 Wt .-% W: 0.011 Wt .-% Nb: 0,002 Wt .-% Fe: rest

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Claims (4)

  1. Segment de piston, qui comprend comme corps de base une composition de matériau en acier, caractérisé en ce que la composition de matériau en acier est constituée des éléments suivants dans la fraction indiquée, par rapport à 100% en poids de la composition de matériau en acier : C : 0,5-1,2 % en poids Mn : 3,0-15,0 % en poids Si : 2,0-10,0 % en poids
    et en option Cr : 0-3,0 % en poids Al : max 0,02 % en poids B : max 0,1 % en poids Cu : max 2,0 % en poids Mo : max 3,0 % en poids Nb : max 0,05 % en poids Ni : max 4,0 % en poids P : max 0,1 % en poids S : max 0,05 % en poids Sn : max 0,05 % en poids Ti : max 1,5 % en poids V : max 1,5 % en poids W : max 1,5 % en poids
    fer résiduel au moins 72% en poids et autres impuretés,
    dans lequel la somme des fractions de Nb, Ti, V et W s'élève au maximum à 1,5% en poids et la composition de matériau en acier contient exclusivement des éléments, sélectionnés dans le groupe, constitué de Al, B, C, Cr, Cu, Fe, Mn, Mo, Nb, Ni, P, S, Si, Sn, Ti, V et W, dans lequel la somme de ces éléments donne 100% en poids, dans lequel le segment de piston a été fabriqué dans le cadre d'un procédé, qui comprend les étapes suivantes :
    a. production d'une fusion des matériaux de départ et
    b. coulée de la fusion dans un moule préfabriqué.
  2. Segment de piston selon la revendication 1, dans lequel la teneur en fer est comprise entre 72,0-94,5% en poids.
  3. Procédé de fabrication d'un segment de piston selon la revendication 1 ou 2, dans lequel la fabrication du segment de piston comprend les étapes suivantes :
    a. production d'une fusion des matériaux de départ et
    b. coulée de la fusion dans un moule préfabriqué ainsi que le cas échéant les étapes suivantes :
    c. austénitisation du segment de piston au-dessus d'une température Ac3,
    d. trempe du segment de piston dans un agent de trempe approprié et
    e. recuit du segment de piston à une température dans la plage de 400 à 700°C dans un four à atmosphère contrôlée.
  4. Procédé selon la revendication 3, dans lequel la fabrication du segment de piston comprend en outre l'étape suivante :
    f. nitruration du segment de piston obtenu.
EP09744326.1A 2009-02-26 2009-10-13 Composition de matériau à base d'acier pour fabriquer des segments de piston et des chemises de cylindre Not-in-force EP2401533B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009010726A DE102009010726B3 (de) 2009-02-26 2009-02-26 Kolbenringe und Zylinderlaufbuchsen
PCT/EP2009/007357 WO2010097107A1 (fr) 2009-02-26 2009-10-13 Composition de matériau à base d'acier pour fabriquer des segments de piston et des chemises de cylindre

Publications (2)

Publication Number Publication Date
EP2401533A1 EP2401533A1 (fr) 2012-01-04
EP2401533B1 true EP2401533B1 (fr) 2016-07-13

Family

ID=41479041

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09744326.1A Not-in-force EP2401533B1 (fr) 2009-02-26 2009-10-13 Composition de matériau à base d'acier pour fabriquer des segments de piston et des chemises de cylindre

Country Status (9)

Country Link
US (1) US8277576B2 (fr)
EP (1) EP2401533B1 (fr)
JP (1) JP5465258B2 (fr)
KR (1) KR101622384B1 (fr)
CN (1) CN102265069B (fr)
BR (1) BRPI0921529A2 (fr)
DE (1) DE102009010726B3 (fr)
PT (1) PT2401533T (fr)
WO (1) WO2010097107A1 (fr)

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DE102010042402A1 (de) 2010-10-13 2012-04-19 Federal-Mogul Burscheid Gmbh Verfahren zur Herstellung eines Kolbenrings mit eingelagerten Partikeln
CN103361541B (zh) * 2013-07-23 2015-05-06 河南省中原内配股份有限公司 一种气缸套工装底座的制备材料及制备工装底座的方法
CN104694814B (zh) 2015-01-26 2019-02-01 北京金万科装饰工程有限公司 一种防抗爆地坪材料及其制备方法
US20210230724A1 (en) * 2018-05-31 2021-07-29 Nippon Steel Corporation Steel material for steel piston
CN113122771B (zh) * 2019-12-31 2022-01-14 中内凯思汽车新动力系统有限公司 一种高性能摩擦焊接钢质活塞及其制备方法
CN115558887B (zh) * 2022-09-16 2024-05-14 浙江海马传动科技股份有限公司 一种铜钢复合套筒及其制备方法

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Also Published As

Publication number Publication date
PT2401533T (pt) 2016-09-14
JP5465258B2 (ja) 2014-04-09
JP2012518766A (ja) 2012-08-16
CN102265069A (zh) 2011-11-30
EP2401533A1 (fr) 2012-01-04
US20110305592A1 (en) 2011-12-15
DE102009010726B3 (de) 2010-12-09
US8277576B2 (en) 2012-10-02
CN102265069B (zh) 2014-10-01
WO2010097107A1 (fr) 2010-09-02
KR101622384B1 (ko) 2016-05-18
BRPI0921529A2 (pt) 2016-02-16
KR20110130394A (ko) 2011-12-05

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