EP2401532B1 - Kolbenring - Google Patents

Kolbenring Download PDF

Info

Publication number: EP2401532B1
Authority: EP; European Patent Office
Prior art keywords: weight; piston ring; max; steel material; steel
Prior art date: 2009-02-26
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

EP09744325.3A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP2401532A1 (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

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.)

2009-02-26

Filing date

2009-10-13

Publication date

2017-08-16

2009-10-13 Application filed by Federal Mogul Burscheid GmbH filed Critical Federal Mogul Burscheid GmbH

2012-01-04 Publication of EP2401532A1 publication Critical patent/EP2401532A1/de

2017-08-16 Application granted granted Critical

2017-08-16 Publication of EP2401532B1 publication Critical patent/EP2401532B1/de

Status Not-in-force legal-status Critical Current

2029-10-13 Anticipated expiration legal-status Critical

Links

239000000463 material Substances 0.000 claims description 28
229910000831 Steel Inorganic materials 0.000 claims description 24
239000010959 steel Substances 0.000 claims description 24
238000004519 manufacturing process Methods 0.000 claims description 13
239000000203 mixture Substances 0.000 claims description 11
229910052710 silicon Inorganic materials 0.000 claims description 8
238000000034 method Methods 0.000 claims description 7
229910052758 niobium Inorganic materials 0.000 claims description 7
229910052719 titanium Inorganic materials 0.000 claims description 7
229910052720 vanadium Inorganic materials 0.000 claims description 7
229910052799 carbon Inorganic materials 0.000 claims description 5
239000000155 melt Substances 0.000 claims description 5
238000005121 nitriding Methods 0.000 claims description 5
238000010791 quenching Methods 0.000 claims description 5
230000000171 quenching effect Effects 0.000 claims description 5
229910052742 iron Inorganic materials 0.000 claims description 4
229910052698 phosphorus Inorganic materials 0.000 claims description 4
229910052796 boron Inorganic materials 0.000 claims description 3
229910052804 chromium Inorganic materials 0.000 claims description 3
229910052802 copper Inorganic materials 0.000 claims description 3
229910052745 lead Inorganic materials 0.000 claims description 3
229910052748 manganese Inorganic materials 0.000 claims description 3
229910052759 nickel Inorganic materials 0.000 claims description 3
239000007858 starting material Substances 0.000 claims description 3
229910052717 sulfur Inorganic materials 0.000 claims description 3
229910052718 tin Inorganic materials 0.000 claims description 3
229910052750 molybdenum Inorganic materials 0.000 claims description 2
238000004320 controlled atmosphere Methods 0.000 claims 1
238000005496 tempering Methods 0.000 claims 1
229910001018 Cast iron Inorganic materials 0.000 description 15
238000002844 melting Methods 0.000 description 8
230000008018 melting Effects 0.000 description 8
239000010955 niobium Substances 0.000 description 5
239000010936 titanium Substances 0.000 description 5
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
238000002485 combustion reaction Methods 0.000 description 4
XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
238000005266 casting Methods 0.000 description 3
230000008569 process Effects 0.000 description 3
239000010703 silicon Substances 0.000 description 3
229910052721 tungsten Inorganic materials 0.000 description 3
RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
230000008901 benefit Effects 0.000 description 2
230000006835 compression Effects 0.000 description 2
238000007906 compression Methods 0.000 description 2
230000007797 corrosion Effects 0.000 description 2
238000005260 corrosion Methods 0.000 description 2
GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
239000003921 oil Substances 0.000 description 2
230000002093 peripheral effect Effects 0.000 description 2
239000004576 sand Substances 0.000 description 2
239000000126 substance Substances 0.000 description 2
WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
239000010937 tungsten Substances 0.000 description 2
LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
229910001141 Ductile iron Inorganic materials 0.000 description 1
229910000976 Electrical steel Inorganic materials 0.000 description 1
CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
230000002411 adverse Effects 0.000 description 1
229910045601 alloy Inorganic materials 0.000 description 1
239000000956 alloy Substances 0.000 description 1
238000005275 alloying Methods 0.000 description 1
238000000137 annealing Methods 0.000 description 1
229910001566 austenite Inorganic materials 0.000 description 1
238000005452 bending Methods 0.000 description 1
238000009750 centrifugal casting Methods 0.000 description 1
230000008859 change Effects 0.000 description 1
238000000576 coating method Methods 0.000 description 1
238000009749 continuous casting Methods 0.000 description 1
238000001816 cooling Methods 0.000 description 1
230000006378 damage Effects 0.000 description 1
230000002542 deteriorative effect Effects 0.000 description 1
238000005516 engineering process Methods 0.000 description 1
230000003628 erosive effect Effects 0.000 description 1
230000005496 eutectics Effects 0.000 description 1
-1 for example Substances 0.000 description 1
229910002804 graphite Inorganic materials 0.000 description 1
239000010439 graphite Substances 0.000 description 1
230000005484 gravity Effects 0.000 description 1
230000001050 lubricating effect Effects 0.000 description 1
229910000734 martensite Inorganic materials 0.000 description 1
238000010309 melting process Methods 0.000 description 1
150000001247 metal acetylides Chemical class 0.000 description 1
239000012778 molding material Substances 0.000 description 1
238000003825 pressing Methods 0.000 description 1
230000001681 protective effect Effects 0.000 description 1
230000009467 reduction Effects 0.000 description 1
238000007711 solidification Methods 0.000 description 1
230000008023 solidification Effects 0.000 description 1
230000009466 transformation Effects 0.000 description 1
238000004804 winding Methods 0.000 description 1

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
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
- 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
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
- 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
- C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
- 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

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 or cylinder liners. 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 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 as well as 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.
the silicon present in higher amounts adversely affects the hardenability of the material as its austenite transformation temperature "Ac3" is increased.
austenite transformation temperature "Ac3" is increased.
Kolberninge which have as a basic body a steel material composition containing the following elements in the specified proportion: C: 0.5 - 1.2 Wt .-% Nb: 0,0 - 7,0 Wt .-% Cr: 0.2-20.0 Wt .-% Si: 2,0 - 10,0 Wt .-% Fe: 49.0 - 97.1 Wt .-% Ti: 0,0 - 7,0 Wt .-% Mn: 0.1 - 3.0 Wt .-% V: 0,0 - 7,0 Wt .-% Not a word: 0.1 - 3.0 Wt .-% W: 0,0 - 0,5 Wt .-% B: Max.
the increased wear resistance is achieved according to the invention by the carbide formers niobium, titanium, vanadium and tungsten. According to the invention, it has been found that a proportion of 2.0-7.0% by weight of these carbide formers leads to good wear resistance without the machinability of the resulting material deteriorating such that the production costs would thereby increase disproportionately.
Table 1 gives a list of the hardness of carbides of the elements niobium, titanium, vanadium and tungsten: ⁇ b> Table 1 ⁇ / b> carbide NbC TiC VC WC W 2 C Hardness HV (50 kg) 2000 3000 2900 2200 3000
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 process, 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.

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)

EP09744325.3A 2009-02-26 2009-10-13 Kolbenring Not-in-force EP2401532B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE102009010727A DE102009010727B3 (de)	2009-02-26	2009-02-26	Stahlgusswerkstoffzusammensetzung zur Herstellung von Kolbenringen und Zylinderlaufbuchsen
PCT/EP2009/007355 WO2010097105A1 (de)	2009-02-26	2009-10-13	Stahlwerkstoffzusammensetzung zur herstellung von kolbenringen und zylinderlaufbuchsen

Publications (2)

Publication Number	Publication Date
EP2401532A1 EP2401532A1 (de)	2012-01-04
EP2401532B1 true EP2401532B1 (de)	2017-08-16

Family

ID=41506518

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP09744325.3A Not-in-force EP2401532B1 (de)	2009-02-26	2009-10-13	Kolbenring

Country Status (9)

Country	Link
US (1)	US8506727B2 (pt)
EP (1)	EP2401532B1 (pt)
JP (1)	JP5497798B2 (pt)
KR (1)	KR20110128269A (pt)
CN (1)	CN102272490B (pt)
BR (1)	BRPI0921528A2 (pt)
DE (1)	DE102009010727B3 (pt)
PT (1)	PT2401532T (pt)
WO (1)	WO2010097105A1 (pt)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102009015008B3 (de) *	2009-03-26	2010-12-02	Federal-Mogul Burscheid Gmbh	Kolbenringe und Zylinderlaufbuchsen
JP2015507081A (ja) *	2011-11-30	2015-03-05	フェデラル−モーグルコーポレイション	ピストンリングの用途のための高弾性の耐摩耗性のねずみ鋳鉄
UA111115C2 (uk)	2012-04-02	2016-03-25	Ейкей Стіл Пропертіс, Інк.	Рентабельна феритна нержавіюча сталь
JP2015533943A (ja) *	2012-09-14	2015-11-26	タタ、スティール、ネダーランド、テクノロジー、ベスローテン、フェンノートシャップＴａｔａＳｔｅｅｌＮｅｄｅｒｌａｎｄＴｅｃｈｎｏｌｏｇｙＢｖ	弾性率が改良されたＴｉＣ粒子強化高強度低密度鋼製品およびその製造方法
CN103834872A (zh) *	2012-11-26	2014-06-04	天工爱和特钢有限公司	高耐磨性模具钢
CN104451361A (zh) *	2014-12-25	2015-03-25	常熟市瑞峰模具有限公司	乳液瓶生产用合金铸铁模具
CN104895695B (zh) *	2015-05-18	2017-09-19	宏远石油设备股份有限公司	一种柴油发动机气缸盖
CN105296870A (zh) *	2015-11-03	2016-02-03	合肥海源机械有限公司	叉车用液压油缸活塞杆制备方法
US9873928B2 (en) *	2016-03-15	2018-01-23	Federal-Mogul	High strength cast iron for cylinder liners
WO2020136991A1 (ja) *	2018-12-25	2020-07-02	日鉄日新製鋼株式会社	鋼材及び部品
JP7336685B2 (ja) *	2018-12-25	2023-09-01	日本製鉄株式会社	調質熱処理用鋼材及び部品
CN114962460A (zh) *	2021-02-25	2022-08-30	斯凯孚公司	经热处理的滚子轴承圈

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2280284A (en) *	1940-10-02	1942-04-21	Electro Metallurg Co	Method and agent for treating iron and steel
US3295966A (en)	1964-04-30	1967-01-03	Crucible Steel Co America	Versatile low-alloy tool steel
GB1443900A (en) *	1973-03-30	1976-07-28	Crucible Inc	Powder metallurgy tool steel article
DE3147461C2 (de) *	1981-12-01	1983-10-13	Goetze Ag, 5093 Burscheid	Verschleißfeste Gußeisenlegierung hoher Festigkeit mit sphärolithischer Graphitausscheidung, ihr Herstellungsverfahren und ihre Verwendung
DE3851982T2 (de) *	1987-06-11	1995-03-09	Aichi Steel Works Ltd	Stahl mit hoher Abnutzungsbeständigkeit.
JPH02259048A (ja) *	1989-03-31	1990-10-19	Riken Corp	摺動部材
JPH0768588B2 (ja) *	1989-06-26	1995-07-26	株式会社日立製作所	金属圧延用ロールの製造法
US5081760A (en) *	1989-06-26	1992-01-21	Hitachi, Ltd.	Work roll for metal rolling
FR2688231B1 (fr) *	1992-03-05	1994-11-10	Pechiney Electrometallurgie	Fil composite a gaine plastique pour additions a des bains metalliques.
JP3693268B2 (ja) *	1995-03-24	2005-09-07	日立金属株式会社	ドライブビット
JP2000282177A (ja) *	1999-04-02	2000-10-10	Kobe Steel Ltd	ピストンリング用鋼材
US6527879B2 (en)	1999-06-25	2003-03-04	Hitachi Metals Ltd.	Self-lubricating piston ring material for internal combustion engine and piston ring
DE60027355T2 (de) *	1999-06-25	2007-01-04	Hitachi Metals, Ltd.	Selbstschmierendes Kolbenringmaterial für Verbrennungsmotoren und Kolbenring
JP4680380B2 (ja) *	2000-12-26	2011-05-11	株式会社リケン	ピストンリング及びその製造方法
CN1327025C (zh) *	2002-07-01	2007-07-18	日立金属株式会社	用于具有自润滑性滑动部件的材料以及活塞环用线材
CN100535423C (zh) *	2003-03-31	2009-09-02	日立金属株式会社	内燃机用活塞及其制造方法
DE102006038670B4 (de) *	2006-08-17	2010-12-09	Federal-Mogul Burscheid Gmbh	Hochsiliziumhaltiger Stahlwerkstoff zur Herstellung von Kolbenringen und Zylinderlaufbuchsen
DE102006038669A1 (de) *	2006-08-17	2008-02-28	Federal-Mogul Burscheid Gmbh	Stahlwerkstoff, insbesondere zur Herstellung von Kolbenringen

2009
- 2009-02-26 DE DE102009010727A patent/DE102009010727B3/de not_active Expired - Fee Related
- 2009-10-13 WO PCT/EP2009/007355 patent/WO2010097105A1/de not_active Ceased
- 2009-10-13 CN CN200980155138.6A patent/CN102272490B/zh not_active Expired - Fee Related
- 2009-10-13 BR BRPI0921528A patent/BRPI0921528A2/pt not_active Application Discontinuation
- 2009-10-13 EP EP09744325.3A patent/EP2401532B1/de not_active Not-in-force
- 2009-10-13 US US13/203,580 patent/US8506727B2/en not_active Expired - Fee Related
- 2009-10-13 PT PT97443253T patent/PT2401532T/pt unknown
- 2009-10-13 JP JP2011551412A patent/JP5497798B2/ja not_active Expired - Fee Related
- 2009-10-13 KR KR1020117015156A patent/KR20110128269A/ko not_active Ceased

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number	Publication date
CN102272490A (zh)	2011-12-07
JP2012518764A (ja)	2012-08-16
WO2010097105A1 (de)	2010-09-02
US20110311391A1 (en)	2011-12-22
CN102272490B (zh)	2014-10-15
PT2401532T (pt)	2017-10-17
US8506727B2 (en)	2013-08-13
EP2401532A1 (de)	2012-01-04
DE102009010727B3 (de)	2011-01-13
BRPI0921528A2 (pt)	2016-03-15
KR20110128269A (ko)	2011-11-29
JP5497798B2 (ja)	2014-05-21

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