Nothing Special   »   [go: up one dir, main page]

DE825201C - Process for the manufacture of exhaust valves for internal combustion engines - Google Patents

Process for the manufacture of exhaust valves for internal combustion engines

Info

Publication number
DE825201C
DE825201C DET201A DET0000201A DE825201C DE 825201 C DE825201 C DE 825201C DE T201 A DET201 A DE T201A DE T0000201 A DET0000201 A DE T0000201A DE 825201 C DE825201 C DE 825201C
Authority
DE
Germany
Prior art keywords
internal combustion
combustion engines
exhaust valves
valve
manufacture
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
Application number
DET201A
Other languages
German (de)
Inventor
Gerhard Kubera
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.)
Continental Teves AG and Co oHG
Original Assignee
Alfred Teves 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
Application filed by Alfred Teves GmbH filed Critical Alfred Teves GmbH
Priority to DET201A priority Critical patent/DE825201C/en
Application granted granted Critical
Publication of DE825201C publication Critical patent/DE825201C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/20—Making machine elements valve parts
    • B21K1/22—Making machine elements valve parts poppet valves, e.g. for internal-combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/16—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating with interposition of special material to facilitate connection of the parts, e.g. material for absorbing or producing gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P13/00—Making metal objects by operations essentially involving machining but not covered by a single other subclass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/02—Selecting particular materials for valve-members or valve-seats; Valve-members or valve-seats composed of two or more materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Forging (AREA)

Description

Verfahren zur Herstellung von Auslaßventilen von Verbrennungsmotoren Die Erfindung bezieht sich auf ein Verfahren zur Herstellung von Auslaßventilen von Verbrennungsmotoren sowie nach diesem Verfahren hergestellte Ventilkegel.Process for the manufacture of exhaust valves for internal combustion engines The invention relates to a method for manufacturing exhaust valves of internal combustion engines as well as valve cones manufactured according to this process.

Es. ist bekannt, daß die Ventile von Verbrennungsmotoren, insbesondere die Auslaßventile, einer außerordentlich starken Beanspruchung unterliegen und durch die hohen Temperaturen und Korrosionsangriffe stark angegriffen werden. Zum Schutz gegen diese Angriffe hat man auf die Dichtfläche ein Material aufgeschweißt, welches infolge seiner Legierung ganz besonders Kitze- und korrosionsbeständig ist.It. it is known that the valves of internal combustion engines, in particular the exhaust valves are subject to extremely high stress and through the high temperatures and corrosion attacks are strongly attacked. For protection Against these attacks, a material has been welded onto the sealing surface, which Due to its alloy, it is particularly resistant to fawning and corrosion.

Die bekannten Panzermaterialien wurden durch Schweißung von Hand auf den Ventilkegelrohling aufgetragen, der meist durch Stauchen und Schmieden hergestellt wurde und der zur Aufnahme des 1'anzerungsmaterials eine entsprechende Auskehlung besaß. Die Herstellung derartiger gepanzerter Kegel war insbesondere deshalb sehr schwierig und kostspielig, als das aufgetragene Panzermaterial nur sehr schwer durch Drehen oder Schleifen bearbeitet werden konnte. Da das Schweißmaterial nur in Form der bekannten Schweißraupe aufgetragen werden konnte und deshalb eine wulstartige Form besaß, mußte es jedoch meist mehr als zur Hälfte durch Zerspanen wieder abgetragen werden, was nicht nur einen hohen Arbeitsaufwand, sondern auch einen hohen Verlust an dem hochwertigen Panzerungsmaterial zur Folge hatte.The known armor materials were welded on by hand applied to the valve cone blank, which is usually produced by upsetting and forging and a corresponding groove to accommodate the armoring material owned. The manufacture of such armored cones was particularly great difficult and expensive, as the applied armor material is very difficult to get through Turning or grinding could be machined. Because the welding material is only in shape the known weld bead could be applied and therefore a bead-like Possessed shape, it usually had to be removed again more than half by machining become, which is not only a large amount of work but also a large loss on the high-quality armor material.

Das Verfahren zur Herstellung von Ventilen gemäß vorliegender Erfindung ist dadurch gekennzeichnet, daß das in bekannter Weise durch Auftragsschweißung auf den entsprechend vorgeformten Kegel aufgebrachte Panzermaterial plastisch verformt wird, wobei das auf Schmiedetemperatur erwärmte Ventil im Gesenk geschlagen und die Oberfläche der Schweißraupe matriziert wird, worauf die an sich bekannteOberflächenbearbeitung erfolgt.The method of making valves according to the present invention is characterized in that this is done in a known manner by build-up welding Armor material applied to the appropriately preformed cone plastically deformed the valve, heated to forging temperature, is struck in the die and the surface of the weld bead is matrixed, whereupon the surface treatment known per se he follows.

Durch das gemäß Erfindung vorgesehene Matrizieren des Kegels einschließlich der Panzerungsauflage wird die erforderliche Oberflächenbearbeitung auf ein Mindestmaß reduziert und dadurch nicht nur der Arbeitsaufwand erheblich verringert, sondern insbesondere in erheblichem Umfang Panzerungsmaterial eingespart. Durch das Schmieden wird ferner eine nachträgliche Verdichtung und damit Verfestigung der Panzerauflage erzielt, was zur Erhöhung der Lebensdauer des Ventils beiträgt.Including by the matrixing of the cone provided according to the invention the armor plating will keep the required surface finishing to a minimum and thus not only significantly reduces the workload, but in particular, a considerable amount of armor material saved. By forging there is also a subsequent compaction and thus solidification of the armor support achieved, which contributes to increasing the service life of the valve.

Das Verfahren gemäß vorliegender Erfindung ermöglicht auch die Herstellung eines Ventils, das erfindungsgemäß nicht nur in der bisher bekannten Weise am Sitz, sondern darüber hinaus auch an der äußeren Randfläche, also am größten Durchmesser des Ventils, gepanzert ist und somit das Ventil an'den am stärksten Temperatur- und Korrosionseinflüssen ausgesetzten Stellen mit einem wirksamen Schutz versehen ist.The method of the present invention also enables manufacture of a valve that, according to the invention, is not only installed in the previously known manner on the seat, but also on the outer edge surface, i.e. on the largest diameter of the valve, is armored and thus the valve has the highest temperature and areas exposed to corrosion are provided with effective protection is.

Claims (2)

PATENTANSPRÜCHE: r. Verfahren zur Herstellung von Auslaßventilen von Verbrennungsmotoren mit einer Panzerung zum Schutz gegen Temperaturbeanspruchung und Korrosion, dadurch gekennzeichnet, daß das in bekannter Weise durch Auftragsschweißung auf den entsprechend vorgeformten Kegel aufgebrachte Panzermaterial plastisch verformt wird, wobei (las auf Schmiedetemperatur erwärmte Ventil im Gesenk geschlagen und die Oberfläche der Schweißraupe matriziert wird, worauf die an sich bekannte Oberflächenbearbeitung erfolgt. PATENT CLAIMS: r. Process for the production of exhaust valves for internal combustion engines with armoring to protect against temperature stress and corrosion, characterized in that the armor material applied in a known manner by build-up welding onto the appropriately pre-formed cone is plastically deformed, with the valve heated to forging temperature being struck in the die and the Surface of the weld bead is matrixed, whereupon the known surface processing takes place. 2. Auslaßventil, hergestellt nach dem im Anspruch r beanspruchten Verfahren, dadurch gekennzeichnet, daß die Panzerung sowohl die Sitzfläche als auch den Außendurchmesser des Ventils umfaßt.2. Exhaust valve, produced according to the method claimed in claim r, characterized in that the armor covers both the seat surface and the outer diameter of the valve includes.
DET201A 1949-11-26 1949-11-26 Process for the manufacture of exhaust valves for internal combustion engines Expired DE825201C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DET201A DE825201C (en) 1949-11-26 1949-11-26 Process for the manufacture of exhaust valves for internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET201A DE825201C (en) 1949-11-26 1949-11-26 Process for the manufacture of exhaust valves for internal combustion engines

Publications (1)

Publication Number Publication Date
DE825201C true DE825201C (en) 1951-12-17

Family

ID=7542909

Family Applications (1)

Application Number Title Priority Date Filing Date
DET201A Expired DE825201C (en) 1949-11-26 1949-11-26 Process for the manufacture of exhaust valves for internal combustion engines

Country Status (1)

Country Link
DE (1) DE825201C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1300799B (en) * 1964-06-13 1969-08-07 Teves Thompson Gmbh Blank for the manufacture of valve cones with armored valve disc seating surface
DE102008037747A1 (en) * 2008-08-14 2010-02-18 Märkisches Werk GmbH bimetal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1300799B (en) * 1964-06-13 1969-08-07 Teves Thompson Gmbh Blank for the manufacture of valve cones with armored valve disc seating surface
DE102008037747A1 (en) * 2008-08-14 2010-02-18 Märkisches Werk GmbH bimetal

Similar Documents

Publication Publication Date Title
EP0521821B1 (en) Exhaust valve of diesel internal combustion engine and manufacturing process thereof
DE1533239B1 (en) USE OF A STEEL FOR POPPET VALVES
DE69311302T2 (en) Process for the surface treatment of a fan tappet
DE202007019121U1 (en) Coated lock washer
DE2211138C3 (en) Method for producing a covering layer by spraying molten metal onto a previously cleaned part of a thread
DE825201C (en) Process for the manufacture of exhaust valves for internal combustion engines
DE2105851A1 (en) Aluminum materials and their manufacture
DE3501822C2 (en)
DE2904940C2 (en) Light metal cylinder head for a valve-controlled internal combustion engine
DE102006042830B3 (en) Press-quenched steel component production comprises temporarily spraying blank with cooling medium by feeding medium through feed channels into die before closing die
DE102015204656A1 (en) Layer formation for rolling bearing components
EP2285998B1 (en) Method for producing a piston for an internal combustion engine and piston for an internal combustion engine
DE3212338C2 (en) Process for the production of heavy-duty machine parts, in particular internal combustion engine parts
DE10311149A1 (en) Method of manufacturing a forged piston for an internal combustion engine
DE102014005096A1 (en) Cylinder liner, assembly and method for manufacturing a cylinder liner
EP2549067B1 (en) Method for manufacturing a valve
DE102014214640A1 (en) Method for producing a component from heat-treated cast iron
DE2929634C3 (en) Process for the production of turbo blades made of titanium or titanium-based alloy with a hard surface
DE102012002283B3 (en) Method for producing a turbine rotor
DE102018107716A1 (en) LASER RE-MELTING FOR IMPROVING MECHANICAL CHARACTERISTICS OF CYLINDER HOLES
DE2411840A1 (en) PISTONS FOR COMBUSTION ENGINES
WO2019001906A1 (en) Method for producing a ball stud
DE335030C (en) Hardening of magnesium alloys and magnesium
DET0000201MA (en) Process for the manufacture of exhaust valves for internal combustion engines.
DE19648160C2 (en) Compression piston ring