DE10325916A1 - Process for producing a cooled ring carrier - Google Patents
Process for producing a cooled ring carrier Download PDFInfo
- Publication number
- DE10325916A1 DE10325916A1 DE10325916A DE10325916A DE10325916A1 DE 10325916 A1 DE10325916 A1 DE 10325916A1 DE 10325916 A DE10325916 A DE 10325916A DE 10325916 A DE10325916 A DE 10325916A DE 10325916 A1 DE10325916 A1 DE 10325916A1
- Authority
- DE
- Germany
- Prior art keywords
- ring carrier
- salt core
- producing
- recess
- salt
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- F02F3/16—Pistons having cooling means
- F02F3/20—Pistons having cooling means the means being a fluid flowing through or along piston
- F02F3/22—Pistons having cooling means the means being a fluid flowing through or along piston the fluid being liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
- B22C9/105—Salt cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/0009—Cylinders, pistons
- B22D19/0027—Cylinders, pistons 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
- F02F3/00—Pistons
- F02F3/0015—Multi-part pistons
- F02F3/003—Multi-part pistons the parts being connected by casting, brazing, welding or clamping
-
- 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
- F02F3/16—Pistons having cooling means
- F02F3/20—Pistons having cooling means the means being a fluid flowing through or along piston
Abstract
Vorgeschlagen wird ein Verfahren zur Herstellung eines gekühlten Ringträgers (1) für einen im Gießverfahren herzustellenden Aluminium-Kolben eines Verbrennungsmotors mit einem auf dem Ringträgerrücken (3) als eine nach unten offene Eindrehung (4) ausgebildeten Kühlkanal (6). In die Eindrehung (4) wird zu diesem Zweck Salzgranulat mit einem Druck von 100 bis 300 N/mm·2· eingepresst, sodass sich in der Eindrehung (4) ein Salzkern (5) bildet.The invention relates to a method for producing a cooled ring carrier (1) for an aluminum piston of an internal combustion engine to be produced using the casting method, with a cooling channel (6) formed on the ring carrier back (3) as a recess (4) which is open towards the bottom. For this purpose, salt granulate is pressed into the recess (4) at a pressure of 100 to 300 N / mm · 2 ·, so that a salt core (5) forms in the recess (4).
Description
Die Erfindung betrifft ein Verfahren zur Herstellung eines gekühlten Ringträgers nach dem Oberbegriff des Anspruches 1.The invention relates to a method to produce a chilled Ringbearer according to the preamble of claim 1.
Aus dem Stand der Technik ist es allgemein bekannt, bei im Gießverfahren herzustellenden Kühlkanalkolben den hierbei vorgesehenen Kühlkanal als gepressten Salzkern vorzuformen und über Pinolen in der Gießform zu befestigen, bevor die Schmelze in die Gießform eingefüllt wird. Um diesen Kühlkanal derart anzuordnen, dass ein thermisch besonders belasteter Ringträger hierdurch bevorzugt gekühlt wird, wird in der französischen Patentschrift 2.044.242 ein Ringträger für den Kolben eines Verbrennungsmotors vorgeschlagen, der auf seiner Innenseite eine nach unten offene Ausnehmung aufweist. Diese Ausnehmung wird zunächst mit einem gut auflösbaren Material gefüllt, bevor der Ringträger, ohne zuvor in ein Alfinbad eingetaucht worden zu sein, in die Gussform für einen Kolben gelegt wird, wonach durch Einfüllen von flüssigem Metall in die Gussform der Kolben hergestellt wird. Dadurch, dass hierbei das Alfinieren des Ringträgers unterbleibt, ergibt sich bei dem bekannten Verfahren keine ausreichend feste Bindung zwischen dem Ringträger und dem gegossenen Kolben, sodass bei der Benutzung des aus dem Stand der Technik bekannten Kolbens in einem Verbrennungsmotor Funktionsprobleme zu erwarten sind.It is from the state of the art generally known in the casting process to manufacture cooling channel pistons the cooling channel provided here preform as a pressed salt core and close over quill in the mold fasten before the melt is poured into the mold. To this cooling channel like this to arrange that a thermally particularly stressed ring carrier is preferably cooled, is in the French Patent specification 2,044,242 a ring carrier for the piston of an internal combustion engine suggested the one on the inside open to the bottom Has recess. This recess is first made with a readily dissolvable material filled, before the ring bearer without having previously been immersed in an alfin bath, in the mold for one Piston is placed, after which by pouring liquid metal into the mold the piston is made. By the fact that the finishing of the ring bearer is omitted, the known method does not suffice firm bond between the ring carrier and the cast piston, so when using the known from the prior art Piston problems in an internal combustion engine can be expected are.
Im Anschluss daran wird das Material mittels einer geeigneten Flüssigkeit aufgelöst und aus der Ausnehmung des Ringträgers entfernt, sodass sich hierbei im Kolben ein Kühlkanal ergibt. Dem genannten Stand der Technik sind keinerlei Angaben zu entnehmen, welcher Art das Material ist, das in die Ausnehmung gefüllt wird, und mit welcher Flüssigkeit dieses Material auflösbar ist. Zudem hat das aus dem Stand der Technik bekannte Verfahren zur Herstellung eines Kühlkanalkolbens den Nachteil, dass sich bei einem einfachen Füllen der Ausnehmung zwischen der Wandung der Ausnehmung und dem dabei verwendeten Material Hohlräume bilden können, die beim anschließenden Gießen des Kühlkanalkolbens mit der Metallschmelze gefüllt werden, wodurch sich der Querschnitt des gebildeten Kühlkanals verringert.Following that, the material using a suitable liquid disbanded and removed from the recess of the ring carrier, so that here a cooling channel in the piston results. There is no information about the state of the art determine what type of material is being filled into the recess, and with what liquid this material dissolvable is. In addition, the method known from the prior art has for the production of a cooling channel piston the disadvantage that there is a simple filling of the recess between the walls of the recess and the material used to form cavities can, the next one to water of the cooling channel piston with the molten metal filled be, whereby the cross section of the cooling channel formed reduced.
Hiervon ausgehend liegt der Erfindung das Problem zugrunde, das bekannte Verfahren zur Herstellung eines Ringträgers mit einem Kühlkanal insoweit zu verbessern, dass es auf einfache Weise ausführbar ist, und dass es die Nachteile des Standes der Technik vermeidet.The invention is based on this the problem underlying the known method of manufacturing a Ringbearer with a cooling channel to improve to the extent that it can be carried out in a simple manner, and that it avoids the disadvantages of the prior art.
Dieses Problem wird mit einem Verfahren zur Herstellung eines gekühlten Ringträgers mit den Merkmalen nach dem Kennzeichen des Anspruches 1 gelöst. Dadurch, dass hierbei die auf dem Ringträgerrücken eingearbeitete Eindrehung als Form dient, in die das Salzgranulat zur Bildung eines Salzkernes eingepresst wird, nimmt der Salzkern genau die Form der Eindrehung an, sodass sich keinerlei Hohlräume zwischen Salzkern und Eindrehung bilden können.This problem is solved with a procedure to produce a chilled Ringbearer solved with the features according to the characterizing part of claim 1. Thereby, that the one incorporated on the ring carrier back Twist serves as a form in which the salt granules form a Salt core is pressed in, the salt core takes exactly the shape of the Screwing in so that there are no voids between the salt core and screwing can form.
Nach einer weiteren Ausgestaltung der Erfindung wird in die Eindrehung ein fertig gepresster Salzkern eingelegt, der in der Halterung über eine Klebeverbindung befestigt wird. Das Verfahren zur Herstellung eines Ringträgers mit einem Kühlkanal wird hierdurch sehr vereinfacht und damit auch verbilligt.According to a further embodiment the invention is a finished pressed salt core in the screwing inserted in the holder over an adhesive connection is attached. The manufacturing process a ring bearer with a cooling duct very simplified and therefore also cheaper.
Das erfindungsgemäße Verfahren wird anhand einiger Zeichnungen näher erläutert. Es zeigenThe method according to the invention is illustrated by some Drawings closer explained. Show it
Ein in
Im Rahmen des Herstellungsverfahrens
eines mit dem Ringträger
Alternativ hierzu kann in die Eindrehung
In einem zweiten Verfahrensschritt
wird der aus dem Ringträger
Im Anschluss an den Gießvorgang
zur Herstellung des Aluminiumkolbens werden in dem noch mit dem
Salzkern
- AA
- BereichArea
- 11
- RingträgerRingbearer
- 22
- Kolbenringpiston ring
- 33
- RingträgerrückenRingbearer back
- 44
- Eindrehungrecess
- 55
- Salzkernsalt core
- 66
- Kühlkanalcooling channel
Claims (3)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10325916A DE10325916A1 (en) | 2002-06-25 | 2003-06-07 | Process for producing a cooled ring carrier |
DE50301437T DE50301437D1 (en) | 2002-06-25 | 2003-06-18 | METHOD FOR PRODUCING A COOLED RING CARRIER |
JP2004530891A JP4169740B2 (en) | 2002-06-25 | 2003-06-18 | Method for manufacturing a cooled ring support |
US10/519,271 US7356925B2 (en) | 2002-06-25 | 2003-06-18 | Method for producing a cooled ring carrier |
BRPI0312038-4A BR0312038B1 (en) | 2002-06-25 | 2003-06-18 | process for manufacturing a refrigerated ring carrier. |
PCT/DE2003/002047 WO2004000489A1 (en) | 2002-06-25 | 2003-06-18 | Method for producing a cooled ring carrier |
KR1020047021058A KR101004883B1 (en) | 2002-06-25 | 2003-06-18 | Method for producing a cooled ring carrier |
EP03760565A EP1515816B1 (en) | 2002-06-25 | 2003-06-18 | Method for producing a cooled ring carrier |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10228256 | 2002-06-25 | ||
DE10228256.0 | 2002-06-25 | ||
DE10325916A DE10325916A1 (en) | 2002-06-25 | 2003-06-07 | Process for producing a cooled ring carrier |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10325916A1 true DE10325916A1 (en) | 2004-02-05 |
Family
ID=30009759
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10325916A Withdrawn DE10325916A1 (en) | 2002-06-25 | 2003-06-07 | Process for producing a cooled ring carrier |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10325916A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007020384A1 (en) * | 2007-04-30 | 2008-11-06 | Mahle International Gmbh | Piston for an internal combustion engine, process for its preparation and ring carrier therefor |
DE102008031862A1 (en) * | 2008-07-05 | 2010-01-07 | Mahle International Gmbh | Insert for piston of combustion engine, particularly diesel engines, has circulating fire land, circulating ring portion and circulating cooling duct, where piston head is provided with piston base having combustion recess |
US8001946B2 (en) | 2005-12-21 | 2011-08-23 | Mahle International Gmbh | Piston for an internal combustion engine and method for its production |
US8122935B2 (en) | 2007-04-27 | 2012-02-28 | Mahle International Gmbh | Casting core for forming a cooling channel in a piston produced by casting |
WO2013139845A2 (en) | 2012-03-21 | 2013-09-26 | Mahle International Gmbh | Process for producing a cooled ring carrier |
DE102013007735A1 (en) | 2012-05-08 | 2013-11-14 | Audi Ag | Manufacture of salt kernel involves compressing salt mixture under high pressure, solidifying, adding mixture of binding agent and pure salt powder, injecting powder mixture into mold, and pressing |
-
2003
- 2003-06-07 DE DE10325916A patent/DE10325916A1/en not_active Withdrawn
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8001946B2 (en) | 2005-12-21 | 2011-08-23 | Mahle International Gmbh | Piston for an internal combustion engine and method for its production |
US8122935B2 (en) | 2007-04-27 | 2012-02-28 | Mahle International Gmbh | Casting core for forming a cooling channel in a piston produced by casting |
DE102007020384A1 (en) * | 2007-04-30 | 2008-11-06 | Mahle International Gmbh | Piston for an internal combustion engine, process for its preparation and ring carrier therefor |
DE102008031862A1 (en) * | 2008-07-05 | 2010-01-07 | Mahle International Gmbh | Insert for piston of combustion engine, particularly diesel engines, has circulating fire land, circulating ring portion and circulating cooling duct, where piston head is provided with piston base having combustion recess |
WO2013139845A2 (en) | 2012-03-21 | 2013-09-26 | Mahle International Gmbh | Process for producing a cooled ring carrier |
DE102012204480A1 (en) | 2012-03-21 | 2013-09-26 | Mahle International Gmbh | Process for the preparation of a cooled ring carrier |
WO2013139845A3 (en) * | 2012-03-21 | 2013-12-05 | Mahle International Gmbh | Process for producing a cooled ring carrier |
DE102013007735A1 (en) | 2012-05-08 | 2013-11-14 | Audi Ag | Manufacture of salt kernel involves compressing salt mixture under high pressure, solidifying, adding mixture of binding agent and pure salt powder, injecting powder mixture into mold, and pressing |
DE102013007735B4 (en) * | 2012-05-08 | 2015-10-15 | Audi Ag | Method for producing a castable salt core |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OR8 | Request for search as to paragraph 43 lit. 1 sentence 1 patent law | ||
8105 | Search report available | ||
8139 | Disposal/non-payment of the annual fee |