DE4109628C2 - Use of a precipitation hardening ferritic pearlitic steel - Google Patents

Use of a precipitation hardening ferritic pearlitic steel

Info

Publication number
DE4109628C2
DE4109628C2 DE4109628A DE4109628A DE4109628C2 DE 4109628 C2 DE4109628 C2 DE 4109628C2 DE 4109628 A DE4109628 A DE 4109628A DE 4109628 A DE4109628 A DE 4109628A DE 4109628 C2 DE4109628 C2 DE 4109628C2
Authority
DE
Germany
Prior art keywords
steel
precipitation hardening
hardening ferritic
pearlitic steel
steels
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.)
Expired - Lifetime
Application number
DE4109628A
Other languages
German (de)
Other versions
DE4109628A1 (en
Inventor
Werner H Bregler
Dieter Mueller-Schwelling
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.)
Mahle GmbH
Original Assignee
Mahle 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6410201&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE4109628(C2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mahle GmbH filed Critical Mahle GmbH
Priority to DE4109628A priority Critical patent/DE4109628C2/en
Publication of DE4109628A1 publication Critical patent/DE4109628A1/en
Application granted granted Critical
Publication of DE4109628C2 publication Critical patent/DE4109628C2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F2200/00—Manufacturing
    • F02F2200/04—Forging of engine parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/02—Light metals
    • F05C2201/021—Aluminium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0448—Steel

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Description

Die Erfindung betrifft die Verwendung eines ausscheidungs­ härtenden ferritisch-perlitischen Stahls.The invention relates to the use of an excretion hardening ferritic-pearlitic steel.

Bei Kolben mit geschmiedeten Bereichen aus Stahl wurde bis­ her als Stahlwerkstoff überwiegend der vergütete Chrom-Mo­ lybdän-Stahl 42CrMo4 eingesetzt. Er gilt für diesen Ein­ satzbereich als ein sehr guter Kompromiß in bezug auf seine Umformbarkeit, seine Festigkeitseigenschaften, Bearbeitbar­ keit, Härtbarkeit und Kosten.Pistons with forged areas made of steel were used up to mainly the tempered chrome Mo as a steel material 42CrMo4 lybdenum steel used. It applies to this one range as a very good compromise in terms of its Formability, its strength properties, machinable speed, hardenability and costs.

Hiervon ausgehend liegt der Erfindung die Aufgabe zugrunde, einen kostengünstigeren, insbesondere kostengünstiger zu verarbeitenden, Werkstoff mit vergleichbar guten Eigen­ schaften einzusetzen.Proceeding from this, the object of the invention is a less expensive, in particular less expensive processing, material with comparable good properties insert shafts.

Gelöst wird diese Aufgabe durch die Verwendung eines an sich bekannten Stahles aus der Gruppe ausscheidungshärten­ der ferritisch-perlitischer Stähle, die nach dem Stahl-Ei­ sen-Werkstoffblatt 101 als AFP-Stähle bezeichnet werden und deren Zusammensetzung dort vorgegeben ist. Solche Stähle sind auch bekannt aus "Dubbel Taschenbuch für den Maschi­ nenbau, Auflage 1990, Seiten E36,37". Desweiteren sind mi­ krolegierte Baustähle mit hoher Feinkornbeständigkeit bei Temperaturbelastung aus der DE-OS 37 19 569 bekannt. Eben­ falls bekannt ist die Verwendung ausscheidungshärtender ferritisch-perlitischer Stähle als Werkstoff für Gaswech­ selventile von Verbrennungsmotoren aus der nicht vorveröf­ fentlichten DE-OS 40 14 072.This task is solved by using one known steels from the group precipitation hardening of ferritic-pearlitic steels made after the steel egg material sheet 101 are referred to as AFP steels and whose composition is specified there. Such steels are also known from "Dubbel paperback for the Maschi nenbau, edition 1990, pages E36,37 ". Furthermore, mi Krolegierte structural steels with high fine grain resistance Thermal stress known from DE-OS 37 19 569. Exactly if known, the use of precipitation hardening  ferritic-pearlitic steels as material for gas exchange valves of internal combustion engines from the not pre-published published DE-OS 40 14 072.

Als besonders vorteilhaft hat sich die Verwendung des AFP- Stahles 38MnSiVS5 in der Zusammensetzung nach dem kenn­ zeichnenden Teil des Anspruchs 2 gezeigt.The use of the AFP- Steel 38MnSiVS5 in the composition according to the kenn drawing part of claim 2 shown.

Die erfindungsgemäß vorgeschlagene Verwendung ausschei­ dungshärtender ferritisch perlitischer Stähle ist besonders vorteilhaft für den Einsatz bei Gelenkkolben, bei denen der Kolbenkopf mit den Naben lediglich über den Kolbenbolzen mit dem Kolbenschaft verbunden ist.The use proposed according to the invention is not acceptable manure hardening ferritic pearlitic steels is special advantageous for use with articulated pistons where the Piston head with the hubs only over the piston pin is connected to the piston skirt.

Ein weiteres Einsatzgebiet sind Kolben, bei denen der Kol­ benboden aus Stahl und über Schrauben mit dem Kolbenunter­ teil fest verbunden ist.Another area of application is pistons, in which the col steel base and screws with the piston bottom part is firmly connected.

Claims (2)

1. Verwendung eines ausscheidungshärtenden ferritisch-per­ litischen Stahls (AFP-Stahl nach dem deutschen Stahl- Eisen-Werkstoffblatt 101) für Kolben für Verbrennungs­ motoren mit geschmiedeten Bereichen aus Stahl, insbe­ sondere in den an den Brennraum angrenzenden Bereichen sowie an den Naben und Bereichen aus Leichtmetall, ins­ besondere im Bereich des Kolbenschaftes.1. Use of a precipitation hardening ferritic per lititic steel (AFP steel after the German steel Iron material sheet 101) for pistons for combustion motors with forged areas made of steel, esp especially in the areas adjacent to the combustion chamber as well as on the hubs and areas made of light metal, ins especially in the area of the piston skirt. 2. Stahl zur Verwendung nach Anspruch 1, dadurch gekennzeichnet, daß dieser ein 38MnSiVS5-Stahl folgender Zusammenset­ zung ist, angegeben jeweils als Massenanteil in %: C = 0,35-0,40
Si = 0,5-0,8
Mn = 1,2-1,5
P bis zu 0,035
S = 0,03-0,065
V = 0,08-0,13.2. Steel for use according to claim 1, characterized in that it is a 38MnSiVS5 steel of the following composition, given in each case as a mass fraction in%: C = 0.35-0.40
Si = 0.5-0.8
Mn = 1.2-1.5
P up to 0.035
S = 0.03-0.065
V = 0.08-0.13.
DE4109628A 1990-07-12 1991-03-23 Use of a precipitation hardening ferritic pearlitic steel Expired - Lifetime DE4109628C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4109628A DE4109628C2 (en) 1990-07-12 1991-03-23 Use of a precipitation hardening ferritic pearlitic steel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4022289 1990-07-12
DE4109628A DE4109628C2 (en) 1990-07-12 1991-03-23 Use of a precipitation hardening ferritic pearlitic steel

Publications (2)

Publication Number Publication Date
DE4109628A1 DE4109628A1 (en) 1992-01-16
DE4109628C2 true DE4109628C2 (en) 1997-04-17

Family

ID=6410201

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4109628A Expired - Lifetime DE4109628C2 (en) 1990-07-12 1991-03-23 Use of a precipitation hardening ferritic pearlitic steel

Country Status (1)

Country Link
DE (1) DE4109628C2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4024381A1 (en) * 1990-08-01 1992-02-06 Mahle Gmbh Internal combustion engine piston - has zones of forged pptn.-hardening steel contg. carbon, silicon, manganese, phosphorus, sulphur and vanadium
DE102007021101A1 (en) 2007-05-03 2008-11-06 Mahle International Gmbh Alloy steel and its use

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006020861B4 (en) 2006-05-04 2010-08-26 Gesenkschmiede Schneider Gmbh Single-stage forging process and device for the production of bush-type forgings

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3719569C2 (en) * 1986-07-05 1988-06-23 Thyssen Edelstahlwerke Ag Microalloyed steels.
BR8805717A (en) * 1988-10-26 1990-06-12 Metal Leve Sa ARTICULATED PLUG ASSEMBLY
DE4014072A1 (en) * 1989-06-09 1990-12-20 Thyssen Edelstahlwerke Ag USE OF ELIGIBLE FERRITIC-PERLITIC (AFP) STEELS AS A MATERIAL FOR GAS EXCHANGE VALVES OF COMBUSTION ENGINES

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4024381A1 (en) * 1990-08-01 1992-02-06 Mahle Gmbh Internal combustion engine piston - has zones of forged pptn.-hardening steel contg. carbon, silicon, manganese, phosphorus, sulphur and vanadium
DE4024381C2 (en) * 1990-08-01 1999-01-28 Mahle Gmbh Pistons for internal combustion engines with forged areas made of steel
DE102007021101A1 (en) 2007-05-03 2008-11-06 Mahle International Gmbh Alloy steel and its use

Also Published As

Publication number Publication date
DE4109628A1 (en) 1992-01-16

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8363 Opposition against the patent
8365 Fully valid after opposition proceedings
R071 Expiry of right