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DE375329C - Casting mold for centrifugal casting - Google Patents

Casting mold for centrifugal casting

Info

Publication number
DE375329C
DE375329C DEV17872D DEV0017872D DE375329C DE 375329 C DE375329 C DE 375329C DE V17872 D DEV17872 D DE V17872D DE V0017872 D DEV0017872 D DE V0017872D DE 375329 C DE375329 C DE 375329C
Authority
DE
Germany
Prior art keywords
casting
mold
centrifugal
casting mold
liquid
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
DEV17872D
Other languages
German (de)
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.)
WILH VOLLBRECHT DR
Original Assignee
WILH VOLLBRECHT DR
Publication date
Priority to DEV17872D priority Critical patent/DE375329C/en
Application granted granted Critical
Publication of DE375329C publication Critical patent/DE375329C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D13/00—Centrifugal casting; Casting by using centrifugal force
    • B22D13/10—Accessories for centrifugal casting apparatus, e.g. moulds, linings therefor, means for feeding molten metal, cleansing moulds, removing castings
    • B22D13/101—Moulds

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Description

Gußform für Schleuderguß. Bei den umlaufenden Dauergießformen für 5chleudera iß, in denen Abgüsse für Kolbenringe, Röhren usw. hergestellt werden, entstehen im Inneren an den Stellen, die mit dem flüssigen Metall in unmittell)are Berührung kommen, nach kurzem Gehrauch Risse und Sprünge. Diese werden dadurch hervorgerufen, (laß die Gießform von innen hocherhitzt wird, während. sie von außen künstlich durch Luft oder Flüssigkeit .gekühlt wird. Hierdurch entstehen in den einzelnen Metallschichten verschiedene Ausdehnungen, mithin Spannungen, die bei Wiederholung Risse hervorrufen. Diesem Übelstand -wird gemäß der Erfindung dadurch begegnet, daß die Gießform aus mehreren übereinandergezogenen Röhren mit verschiedenenWärmeausd elmungskoeffi7ienten hergestellt wird, und zwar ;o, .d aß das innere Rohr, (las mit dem flüssigen 2 etall in unmittelbare Berührung kommt und sich deshalb am meisten dehnen muß, den kleinsten Wärmeausdehnungskoeffizienten hat, während die folgenden darübergezogenen Röhren entsprechend der geringeren Erwärmung abgestuft größer werdende Wärmeaus-(lehnun.gskoeffizienten aufweisen.Casting mold for centrifugal casting. In the continuous continuous casting molds for 5chleudera ß, in which casts for piston rings, tubes, etc. are made, cracks and fissures appear in the interior at the points that come into direct contact with the liquid metal, after a short ear smoke. These are caused by (let the casting mold be heated up from the inside, while it is artificially cooled from the outside by air or liquid. This creates various expansions in the individual metal layers, and consequently tensions which, if repeated, cause cracks. This disadvantage becomes according to the invention counteracted in that the mold of several superimposed drawn tubes with verschiedenenWärmeausd elmungskoeffi7ienten is prepared, namely; o, .d ate the inner tube (las with the liquid 2 etal comes into direct contact and therefore must expand the most, has the lowest coefficient of thermal expansion, while the following pipes drawn over them have gradually increasing coefficients of thermal expansion (lehnun.gkofe) in accordance with the lower heating.

Claims (1)

PATENT-ANsPRUcH: Utnlaufende, durch Luft oder Flüssigkeit von außen gekühlte Dauergießform für Schleuderguß zur Herstellung von Hohlkörpern, dadurch gekennzeichnet, daß die Gießform aus mehreren übereinandergezogenen Röhren mit verschiedenen Wärmeausdchnungskoeffizienten besteht.PATENT CLAIM: Flow through air or liquid from the outside Cooled permanent casting mold for centrifugal casting for the production of hollow bodies, thereby characterized in that the mold consists of several tubes drawn one above the other with different There is a thermal expansion coefficient.
DEV17872D Casting mold for centrifugal casting Expired DE375329C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV17872D DE375329C (en) Casting mold for centrifugal casting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV17872D DE375329C (en) Casting mold for centrifugal casting

Publications (1)

Publication Number Publication Date
DE375329C true DE375329C (en) 1923-05-12

Family

ID=7576676

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV17872D Expired DE375329C (en) Casting mold for centrifugal casting

Country Status (1)

Country Link
DE (1) DE375329C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE852129C (en) * 1942-09-08 1952-10-13 Buderus Eisenwerk Centrifugal casting mold with a vertical axis of rotation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE852129C (en) * 1942-09-08 1952-10-13 Buderus Eisenwerk Centrifugal casting mold with a vertical axis of rotation

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