DE10218714A1 - Process for producing a light metal liner with an outer rough surface - Google Patents
Process for producing a light metal liner with an outer rough surfaceInfo
- Publication number
- DE10218714A1 DE10218714A1 DE10218714A DE10218714A DE10218714A1 DE 10218714 A1 DE10218714 A1 DE 10218714A1 DE 10218714 A DE10218714 A DE 10218714A DE 10218714 A DE10218714 A DE 10218714A DE 10218714 A1 DE10218714 A1 DE 10218714A1
- Authority
- DE
- Germany
- Prior art keywords
- particles
- liner
- producing
- light metal
- casting mold
- 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- Withdrawn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
-
- 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
- B22D19/0081—Casting in, on, or around objects which form part of the product pretreatment of the insert, e.g. for enhancing the bonding between insert and surrounding cast metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/12—Treating moulds or cores, e.g. drying, hardening
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
- B22D29/001—Removing cores
- B22D29/002—Removing cores by leaching, washing or dissolving
Abstract
Description
Die Erfindung betrifft ein zur Herstellung einer Leichtmetalllaufbuchse mit einer äußeren rauen Oberfläche für einen Verbrennungsmotor. Ein derartiges Verfahren ist aus der DE 199 58 185 bekannt. Dort wird die raue Oberfläche der Leichtmetalllaufbuchse beim Abgießen der Laufbuchse im Lost-Foam-Verfahren erzeugt, indem das Schaumstoffgußmodell der Laufbuchse eine äußere Partikelschicht mit Hinterschnitten aufweist, die zu einer entsprechend hinterschnittenen Form der Außenoberfläche der gegossenen Laufbuchse führt. Die raue Oberfläche der Laufbuchse ist Voraussetzung dafür, daß sich beim Gießen des Motorblocks eine gute Verbindung zwischen der Laufbuchse und dem Umgußmaterial einstellt. The invention relates to a for producing Alloy bush with an outer rough surface for an internal combustion engine. Such a procedure is known from DE 199 58 185. There is the rough surface the light metal liner when casting the liner in Lost foam process created by the foam molding model with an outer particle layer Has undercuts that correspond to one undercut shape of the outer surface of the cast liner leads. The rough surface of the liner is a requirement for making a good one when casting the engine block Connection between the liner and the casting material established.
Die Erfindung beschäftigt sich mit dem Problem, die Herstellung einer Laufbuchse mit einer äußeren rauen Oberfläche auch im Kokillenguß oder Sandguß zu ermöglichen. The invention addresses the problem that Making a liner with an outer rough To allow surface also in permanent mold or sand casting.
Dieses Problem wird gelöst durch ein Verfahren nach Anspruch 1. Vorteilhafte Weiterbildungen sind Gegenstand der Unteransprüche. This problem is solved by a method according to Claim 1. Advantageous further developments are the subject of Dependent claims.
Unter Fixierung der Partikel ist zu verstehen, daß die Partikel zumindest sich nicht schwerkraftbedingt von der Gießform ablösen oder beim Einfüllen der Schmelze aufschwimmen. Andererseits ist die Fixierung nach Möglichkeit nur so schwach zu wählen, daß sich die teilumgossenen Partikel beim Ausformen der Leichtmetalllaufbuchse problemlos von der Oberfläche der Gießform, insbesondere einer Kokille oder einem Blecheinsatz für eine Kokille lösen. Besonders bevorzugt erfolgt die Fixierung der Partikel in der Gießform mittels Kernbindemitteln, die üblicherweise bei der Herstellung von Sandkernen oder Sandformen eingesetzt werden. Fixation of the particles means that the Particles do not at least differ from the gravity Detach the casting mold or float when filling the melt. On the other hand, the fixation is only possible if possible weak to choose that the partially cast particles when molding the light metal bushing from the surface of the mold, in particular a mold or loosen a sheet metal insert for a mold. Especially the particles are preferably fixed in the Casting mold using core binders, which are usually used in the Manufacture of sand cores or sand molds used become.
Als Gießform können auch Sandformen oder Einsätze aus Sand, auch geteilte Sandformen verwendet werden. Sand molds or inserts made of sand, Split sand molds can also be used.
Es hat sich als vorteilhaft herausgestellt, daß eine Korngröße der Partikel in einem Bereich von 0,3 mm bis 1,5 mm zu einer Vergrößerung der spezifischen Oberfläche führt, die durch viele kleine Hinterschneidungen aus dem Partikelgemisch entsteht. It has proven advantageous that a Grain size of the particles in a range from 0.3 mm to 1.5 mm leads to an increase in the specific surface, caused by many small undercuts from the Particle mixture arises.
Die raue Oberfläche muß nicht notwendigerweise über die gesamte Oberfläche der Laufbuchse vorliegen, sondern kann auf Teilbereiche beschränkt sein. The rough surface does not necessarily have to be over the entire surface of the liner, but can be on Partial areas may be limited.
Der größte Durchmesser der Laufbuchse ist im rauen Bereich bestimmt durch den Innendurchmesser der Kokille bzw. des Kokilleneinsatzes, auf den die Partikel aufgebracht sind. Jeder Partikel wird beim Gießen bezüglich des Außendurchmessers der Laufbuchse als Vertiefung bzw. als Stelle geringeren Durchmessers abgebildet. Da die Partikel nach dem Ausformen der Laufbuchse vom Außendurchmesser her zugänglich sind, können sie in einer Flüssigkeit aufgelöst werden oder mechanisch z. B. durch Sandstrahlen aus der Laufbuchse entfernt werden. Anstelle der aufgelösten Partikel verbleiben Vertiefungen am Außendurchmesser des Laufbuchsenrohlings. The largest diameter of the liner is in the rough area determined by the inner diameter of the mold or Mold insert on which the particles are applied. Each particle is poured with respect to the Outside diameter of the liner as a recess or as a location mapped smaller diameter. Since the particles after Form the liner from the outside diameter accessible, they can be dissolved in a liquid or mechanically z. B. by sandblasting from the liner be removed. Instead of the dissolved particles there are recesses on the outside diameter of the Liner blank.
Die Partikel bestehen vorteilhaft aus Salz, wie es auch von der Herstellung von Salzkernen für Kühlkanäle bekannt ist. The particles advantageously consist of salt, as is the case with the production of salt cores for cooling channels is known.
Die Erfindung wird im folgenden anhand einer erfindungsgemäß hergestellten Laufbuchse näher erläutert. Es zeigt: The invention is based on a Liner produced according to the invention explained in more detail. It shows:
Fig. 1 eine Laufbuchse mit rauer Oberfläche im oberen Bereich. Fig. 1 is a liner with a rough surface in the upper area.
Die Laufbuchse weist auf den oberen ca. 60% ihrer Länge eine zerklüftete Oberfläche auf, die durch teilumgossene und später ausgelöste Salzpartikel entstanden ist. Im unteren Bereich der Laufbuchse, der durch Verwendung eines entsprechenden Kokilleneinsatzes einen etwas kleineren Durchmesser aufweist, ist die Laufbuchse vergleichsweise glatt. The liner has about 60% of its length on the top a jagged surface that is partially cast and later released salt particles. in the lower area of the liner by using a corresponding mold use a slightly smaller Has diameter, the liner is comparatively smooth.
Claims (3)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10218714A DE10218714A1 (en) | 2001-06-23 | 2002-04-26 | Process for producing a light metal liner with an outer rough surface |
EP02754187A EP1401598A2 (en) | 2001-06-23 | 2002-06-07 | Method for producing a light-alloy bearing bush with a rough external surface |
PCT/DE2002/002074 WO2003000447A2 (en) | 2001-06-23 | 2002-06-07 | Method for producing a light-alloy bearing bush with a rough external surface |
BRPI0210614A BRPI0210614B1 (en) | 2001-06-23 | 2002-06-07 | 'process for manufacturing a light metal slip jacket with a rough outer surface'. |
US10/481,947 US6957489B2 (en) | 2001-06-23 | 2002-06-07 | Method for producing a light-alloy bearing bush with a rough external surface |
JP2003506676A JP4266816B2 (en) | 2001-06-23 | 2002-06-07 | Method for producing a light metal cylinder liner with an outer rough surface |
KR1020037016762A KR100893960B1 (en) | 2001-06-23 | 2002-06-07 | Method for producing a light-alloy bearing bush with a rough external surface |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10130416 | 2001-06-23 | ||
DE10218714A DE10218714A1 (en) | 2001-06-23 | 2002-04-26 | Process for producing a light metal liner with an outer rough surface |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10218714A1 true DE10218714A1 (en) | 2003-01-02 |
Family
ID=7689264
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10218714A Withdrawn DE10218714A1 (en) | 2001-06-23 | 2002-04-26 | Process for producing a light metal liner with an outer rough surface |
Country Status (2)
Country | Link |
---|---|
KR (1) | KR100893960B1 (en) |
DE (1) | DE10218714A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004031164A1 (en) * | 2004-06-28 | 2006-01-12 | Federal-Mogul Burscheid Gmbh | Runner gate body made from a metal or metal alloy used in engine blocks has an outer coating made from a first outer coating component and a second outer coating component |
DE10347512B4 (en) * | 2003-10-13 | 2006-09-14 | Federal-Mogul Burscheid Gmbh | Cylinder liner with thermally sprayed Rauschicht for internal combustion engines, their connection to a composite body and thus produced composite body |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010047471A1 (en) * | 2010-10-06 | 2012-04-12 | Sms Siemag Ag | Method for processing a bearing arrangement and bearing arrangement |
KR102417747B1 (en) * | 2017-08-02 | 2022-07-07 | 엘지전자 주식회사 | Bush bearing with external lubricant layer and manufactoring method for this |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4034464A (en) | 1975-08-27 | 1977-07-12 | Ford Motor Company | Method of aluminum cylinder head valve seat coating transplant |
JPS5257021A (en) | 1975-11-07 | 1977-05-11 | Nippon Musical Instruments Mfg | Method of manufacturing cylinder |
DE19958185A1 (en) | 1999-12-02 | 2001-06-07 | Mahle Ventiltrieb Gmbh | Lost form for the production of a cylinder liner |
JP2001276961A (en) * | 2000-03-30 | 2001-10-09 | Mazda Motor Corp | Preformed porous metal product and production process of composite metallic parts using the same |
-
2002
- 2002-04-26 DE DE10218714A patent/DE10218714A1/en not_active Withdrawn
- 2002-06-07 KR KR1020037016762A patent/KR100893960B1/en not_active IP Right Cessation
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10347512B4 (en) * | 2003-10-13 | 2006-09-14 | Federal-Mogul Burscheid Gmbh | Cylinder liner with thermally sprayed Rauschicht for internal combustion engines, their connection to a composite body and thus produced composite body |
DE10347512C5 (en) * | 2003-10-13 | 2012-09-06 | Federal-Mogul Burscheid Gmbh | Cylinder liner with thermally sprayed Rauschicht for internal combustion engines, their connection to a composite body and thus produced composite body |
DE102004031164A1 (en) * | 2004-06-28 | 2006-01-12 | Federal-Mogul Burscheid Gmbh | Runner gate body made from a metal or metal alloy used in engine blocks has an outer coating made from a first outer coating component and a second outer coating component |
DE102004031164B4 (en) * | 2004-06-28 | 2008-03-20 | Federal-Mogul Burscheid Gmbh | Cast body with external coating for the production of composite bodies |
Also Published As
Publication number | Publication date |
---|---|
KR100893960B1 (en) | 2009-04-20 |
KR20040004719A (en) | 2004-01-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
R120 | Application withdrawn or ip right abandoned |
Effective date: 20120229 |