Claims
- 1. A method of manufacturing a thick-walled container casting of cast iron with spheroidal graphite, comprising: forming an inflexible closed mold of an inner closed cylindrical dead mold core arranged within an outer closed old part spaced outwardly and upwardly of the mold core to form a closed mold space; filling the mold space between the inner mold core and the outer part through a gate: actively cooling an inner mold surface of the mold space on the dead mold core by cooling an inner surface of the mold core: dimensioning the gate so that cast iron solidifies in the gate before a eutectic solidification of the casting in the mold space begins; and after the casting completely solidifies in the mold space, cutting out the mold core from the casting.
- 2. A method according to claim 1, wherein the inner surface of the mold core is actively cooled by pressing a plurality of cooling elements against the inner surface of the mold core and passing a non-combustible liquid coolant through each cooling element.
- 3. A method according to claim 1, including providing a plurality of gates at different levels to the mold space and supplying melted cast iron to gates at the separate levels, at different times so as to fill the mold space rapidly.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3118928 |
May 1981 |
DEX |
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CROSS-REFERENCE TO RELATED APPLICATION
The present application is a continuation-in-part of Ser. No. 604,825 filed April 27th, 1984 which, in turn, was a continuation of Ser. No. 376,157 filed May 7th, 1982, both now abandoned.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4269258 |
Sonntag et al. |
May 1981 |
|
4278124 |
Aso et al. |
Jul 1981 |
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Foreign Referenced Citations (3)
Number |
Date |
Country |
1952009 |
Apr 1971 |
DEX |
50-28898 |
Sep 1975 |
JPX |
54-5820 |
Jan 1979 |
JPX |
Continuations (1)
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Number |
Date |
Country |
Parent |
376157 |
May 1982 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
604825 |
Apr 1984 |
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