DE876575C - Process for casting steel parts in cast iron - Google Patents
Process for casting steel parts in cast ironInfo
- Publication number
- DE876575C DE876575C DEM10682A DEM0010682A DE876575C DE 876575 C DE876575 C DE 876575C DE M10682 A DEM10682 A DE M10682A DE M0010682 A DEM0010682 A DE M0010682A DE 876575 C DE876575 C DE 876575C
- Authority
- DE
- Germany
- Prior art keywords
- cast iron
- steel parts
- casting
- casting steel
- copper
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Coating With Molten Metal (AREA)
Description
Verfahren zum Eingießen stählerner Teile in Gußeisen Das Eingießen der Einschweißringe in die gekühlten Zylinderlaufbüchsen bietet besondere Schwierigkeiten. Das in Gießereien allgemein üb- liche Verfahren, Stahlteile, die irgendwie eingegossen werden sollen (Rohre, Kernstützen, Ringe tisw.), vor dem Einsetzen in die Form zu verzinnen, ist hier nicht durchführbar. Die Zylinderlaufbüchse muß vor dem Guß sehr hoch angewärmt werden. Es besteht daher die Gefahr, daß das Zinn von den Ringen abtropft und daß sich auf demungeschützten Stahlring eine Oxydhaut bildet, die möglicherweise das einwandfreie Verschweißen verhindert. Zur Merwindung dieser Schwierigkeit wurde bereits vorgeschlagen, ein Schutzmetall mit höherem Schmelzpunkt, z. B. Kupfer, zu verwenden. In den bisher bekanntgewordenen Fällen wurde dieses Kupfer stets auf galvanischem Wege auf die Teile aufgebracht. Dieses Verfahren erfordert im vorliegenden Fall sehr große Behälter und bietet ferner keine ausreichende Gewähr für eine feste Verbindung zwischen der verhältnismäßig glatten Kupferoberfläche und dem Gußeisen.Process for casting steel parts in cast iron The casting of the weld-in rings in the cooled cylinder liners presents particular difficulties. The common method in foundries of tin- plating steel parts that are somehow to be cast in (pipes, core supports, rings, etc.) before inserting them into the mold is not feasible here. The cylinder liner must be heated to a very high temperature before casting. There is therefore the risk that the tin will drip off the rings and that an oxide skin will form on the unprotected steel ring, which may prevent proper welding. To overcome this difficulty it has already been proposed to use a protective metal with a higher melting point, e.g. B. copper to be used. In the cases that have become known so far, this copper was always applied to the parts by electroplating. This method requires very large containers, in the present case, and further does not provide sufficient guarantees for a connection between the f este relatively smooth copper surface and the cast iron.
Nach der Erfindung wird beim Eingießen stählerner Teile in Gußeisen und insbesondere beim Eingießen der Einschweißringe in gekühlte Zylinderlaufbüchsen vor dem Einsetzen der Stahlteile in die Form auf die Stahlteile ein Kupferüberzug im Spritzverfahren aufgebracht.According to the invention, when casting steel parts in cast iron and especially when casting the weld-in rings in cooled cylinder liners a copper plating on the steel parts prior to inserting the steel parts into the mold applied by spraying.
Wie eingehende metallographische Untersuchungen bewiesen haben, konnte durch dieses Verfahren ein außergewöhnlicher und überraschender Effekt erzielt werden. Der hohe Schmelzpunkt des Kupfers (io8,4'C) verhindert naturgemäß, daß die Kupferschicht bei der Berührung mit dem flüssigen Eisen we""o.reschmolzeii wird. Es hat sich aber gezeigt, daß infolge der rauhen Oberfläche der Spritzverkupferting zwischen dem Kupfer einerseits und dem Gußeisen anderseits eine aus-ezeichneteVerzahnung entsteht, welche für alle Fälle eine vollkommene Dichtheit gegenüber dem Gußeisen der Zylinderlaufbüchse gewährleistet.As in-depth metallographic studies have shown, could an extraordinary and surprising effect can be achieved by this method. The high melting point of copper (io8.4'C) naturally prevents the copper layer at contact with liquid iron we "" o.reschmolzeii becomes. But it has shown that as a result of the rough surface of the Spritzverkupferting between the copper on the one hand and the cast iron on the other hand an excellent toothing arises, which for all cases a perfect tightness against the cast iron the cylinder liner guaranteed.
Es ist bei dein Verfahren in erster Linie an die dichte Verbindung der stählernen Einschweißringe mit dem Gußeisen der gekühlten Zylinderlaufbüchse gedacht. Die Spritzverkupferung kann indessen überall da mit Vorteil angewandt werden, wo es sich darum handelt, beim Eingießen von stählernen Teilen in Gußeisen eine dichte Verbindung zu erzielen; beispielsweise beim Eingießen von Kernstützen in Kompres,sorzylinder oder von Verstärkungsringen in Schlackenpfannen od. ä. Das Verfahren bietet den Vorteil, daß es auch bef großen Stahlteilen ohne Schwierigkeit angewandt werden kann und daß vor allem die dichte Verbindung zwischen Stahlteil und Gußteil gewährleistet ist.Your process is primarily concerned with the tight connection of the steel weld-in rings with the cast iron of the cooled cylinder liner. Spray copper plating can, however, be used with advantage wherever it is a question of achieving a tight connection when casting steel parts in cast iron; For example, when pouring core supports in Kompres, sorylinders or reinforcing rings in slag pans or the like. The method has the advantage that it can also be used for large steel parts without difficulty and that, above all, the tight connection between the steel part and the cast part is guaranteed.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM10682A DE876575C (en) | 1951-08-19 | 1951-08-19 | Process for casting steel parts in cast iron |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM10682A DE876575C (en) | 1951-08-19 | 1951-08-19 | Process for casting steel parts in cast iron |
Publications (1)
Publication Number | Publication Date |
---|---|
DE876575C true DE876575C (en) | 1953-05-15 |
Family
ID=7295245
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEM10682A Expired DE876575C (en) | 1951-08-19 | 1951-08-19 | Process for casting steel parts in cast iron |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE876575C (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1533272B1 (en) * | 1966-12-19 | 1970-05-14 | Hoesch Ag | Wear plate |
DE1583575B1 (en) * | 1967-12-14 | 1971-03-18 | Bbc Brown Boveri & Cie | COMPONENT IN PARTICULAR TURBINE BLADE |
DE19736790A1 (en) * | 1997-08-23 | 1999-02-25 | Honsel Gusprodukte Gmbh | Compound casting process |
DE19807685A1 (en) * | 1998-02-25 | 1999-09-09 | Daimler Chrysler Ag | Method for producing a blank of a cylinder liner to be poured into a light metal crankcase of a lifting crank machine |
US6484790B1 (en) | 1999-08-31 | 2002-11-26 | Cummins Inc. | Metallurgical bonding of coated inserts within metal castings |
DE10153306A1 (en) * | 2001-10-31 | 2003-05-15 | Daimler Chrysler Ag | Casting in process involves laying insertion part in pressure casting tool, applying non-ferrous metal layer to it, and making groove structure in this layer |
-
1951
- 1951-08-19 DE DEM10682A patent/DE876575C/en not_active Expired
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1533272B1 (en) * | 1966-12-19 | 1970-05-14 | Hoesch Ag | Wear plate |
DE1583575B1 (en) * | 1967-12-14 | 1971-03-18 | Bbc Brown Boveri & Cie | COMPONENT IN PARTICULAR TURBINE BLADE |
DE19736790A1 (en) * | 1997-08-23 | 1999-02-25 | Honsel Gusprodukte Gmbh | Compound casting process |
DE19807685A1 (en) * | 1998-02-25 | 1999-09-09 | Daimler Chrysler Ag | Method for producing a blank of a cylinder liner to be poured into a light metal crankcase of a lifting crank machine |
DE19807685C2 (en) * | 1998-02-25 | 2000-11-09 | Daimler Chrysler Ag | Method for producing blanks of a cylinder liner consisting of a light metal alloy |
US6484790B1 (en) | 1999-08-31 | 2002-11-26 | Cummins Inc. | Metallurgical bonding of coated inserts within metal castings |
DE10043105B4 (en) * | 1999-08-31 | 2007-06-14 | Cummins Inc., Columbus | Metallurgical bonding of coated inserts within metal castings |
DE10153306A1 (en) * | 2001-10-31 | 2003-05-15 | Daimler Chrysler Ag | Casting in process involves laying insertion part in pressure casting tool, applying non-ferrous metal layer to it, and making groove structure in this layer |
DE10153306B4 (en) * | 2001-10-31 | 2010-07-15 | Daimler Ag | Method for pouring an insert |
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