DE573344C - Process for repairing damaged centrifugal casting molds - Google Patents

Process for repairing damaged centrifugal casting molds

Info

Publication number
DE573344C
DE573344C DEV26211D DEV0026211D DE573344C DE 573344 C DE573344 C DE 573344C DE V26211 D DEV26211 D DE V26211D DE V0026211 D DEV0026211 D DE V0026211D DE 573344 C DE573344 C DE 573344C
Authority
DE
Germany
Prior art keywords
centrifugal casting
casting molds
repairing damaged
mold
damaged centrifugal
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
DEV26211D
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.)
Vereinigte Stahlwerke AG
Original Assignee
Vereinigte Stahlwerke AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Vereinigte Stahlwerke AG filed Critical Vereinigte Stahlwerke AG
Priority to DEV26211D priority Critical patent/DE573344C/en
Application granted granted Critical
Publication of DE573344C publication Critical patent/DE573344C/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
    • B22D13/102—Linings for moulds

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electroplating Methods And Accessories (AREA)

Description

Verfahren zum Ausbessern schadhafter Schleudergußkokillen Für Schleudergußkokillen mit Seelenrohr ist bereits vorgeschlagen, das Seelenrohr mit Chrom galvanisch zu überziehen und nach Schadhaftwerden dieses Chromüberzuges das Seelenrohr auszuwechseln oder nur den Chromüberzug zu entfernen und von neuem galvanisch zu verchromen. Chrom ist bekanntlich so hart, daß es mit den üblichen Werlezeugen in wirtschaftlicher Weise nicht bearbeitet werden kann.Process for repairing damaged centrifugal casting molds For centrifugal casting molds with a core tube has already been proposed to galvanically cover the core tube with chrome cover and replace the core tube after this chrome coating becomes damaged or just to remove the chrome coating and then to chrome-plate it again. chrome is known to be so hard that it is economical with the usual Werlezeugen Way can not be edited.

Nach der Erfindung sollen dagegen die ,galvanischen Überzüge nicht aus Chrom, sondern vorzugsweise aus Silber, Kupfer, Aluminium oder einem sonstigen hochwärmeleitfähigen Stoff bestehen und nicht an einem Seelenrohr einer Kokille, sondern unmittelbar an einer schadhaften Kokille in solcher Stärke angebracht werden, daß man die Kokille in üblicher Weise auf ein bestimmtes Maß bearbeiten Tann.According to the invention, however, the galvanic coatings should not made of chrome, but preferably made of silver, copper, aluminum or something else highly thermally conductive material and not on a core tube of a mold, but are attached directly to a damaged mold in such strength, that you edit the mold in the usual way to a certain extent Tann.

Die Erfindung hat den Zweck, schadhafte Schleudergußkokillen auf galvanischem Wege wieder verwendbar zu machen. Die schadhaften Stellen der Kokille werden entfernt oder sonstwie geeignet behandelt, worauf die gesamte Innenfläche der Kokille mit einem galvanischen Überzug von erheblicher Stärke versehen und alsdann in üblicher Weise auf bestimmte Maße bearbeitet wird. Dadurch, daß der galvanische Überzug unmittelbar auf die Innenfläche der Kokille aufgebracht wird, ergibt sich eine besonders gute Ableitung der Wärme durch die Kokillenwand nach der Kühlflüssigkeit. Die Kokillen leiden daher weniger unter der Gießhitze und .können vermöge ihrer raschen Abkühlung in einer bestimmten Zeit sehr viele Güsse liefern, sind also nicht nur in der Herstellung, sondern auch im Gebrauch billiger als Schleudergußkohllen mit Seelenrohr. Solche Kokillen sind sehr teuer und haben derb Nachteil, daß sie die Hitze des Gußstückes zu langsam ableiten. Man kann deshalb in einer bestimmten Zeit nur wenige Gußstücke gießen, und das Seelenrohr wird außerdem sehr stark und sehr lange heiß und daher rasch unbrauchbar.The invention has the purpose of defective centrifugal casting molds on galvanic To make ways usable again. The damaged parts of the mold are removed or otherwise appropriately treated, whereupon the entire inner surface of the mold with provided a galvanic coating of considerable thickness and then in the usual way Way is processed to certain dimensions. Because the galvanic coating is immediate is applied to the inner surface of the mold, the result is a particularly good one Dissipation of heat through the mold wall to the cooling liquid. The molds therefore suffer less from the casting heat and can do so by virtue of their rapid cooling deliver a large number of castings in a certain time, so they are not only in production, but also cheaper to use than centrifugally cast coal with a tube core. Such Chill molds are very expensive and have the major disadvantage that they absorb the heat of the casting dissipate too slowly. You can therefore only make a few castings in a given time pour, and the soul pipe also gets very strong and very long hot and therefore quickly unusable.

Als Metall für den galvanischen Überzug eignet sich Kupfer besonders, weil :es verhältnismäßig rasch in starker Schicht niedergeschlagen werden kann, die Wärme gut leitet, verhältnismäßig billig ist und sich leicht bearbeiten läßt.Copper is particularly suitable as a metal for the galvanic coating, because: it can be knocked down relatively quickly in a thick layer, conducts heat well, is relatively cheap and easy to work with.

Claims (2)

PATENTANSPRÜCHE: r. Verfahren zum Ausbessern schadhafter Schleudergußkokillen durch galvanisches Auftragen von Metallen, dadurch gekennzeichnet, daß als Galvanisierungsmaterial Silber, Kupfer, Aluminium, oder ein sonstiges leicht bearbeitbares, gut wärmeleitfähiges Metall benutzt wird. PATENT CLAIMS: r. Process for repairing damaged centrifugal casting molds by electroplating of metals, characterized in that as electroplating material Silver, copper, aluminum, or something else that is easily machinable and has good thermal conductivity Metal is used. 2. Verfahren nach Anspruch I, dadurch gekennzeichnet, daß der galvanische Überzug in solcher Stärke aufgetragen wird, daß er sich auf. genaues Maß bearbeiten läßt.2. The method according to claim I, characterized in that the galvanic coating is applied in such a thickness that it is on. exact Measure can be edited.
DEV26211D 1930-10-25 1930-10-25 Process for repairing damaged centrifugal casting molds Expired DE573344C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV26211D DE573344C (en) 1930-10-25 1930-10-25 Process for repairing damaged centrifugal casting molds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV26211D DE573344C (en) 1930-10-25 1930-10-25 Process for repairing damaged centrifugal casting molds

Publications (1)

Publication Number Publication Date
DE573344C true DE573344C (en) 1933-03-31

Family

ID=7582492

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV26211D Expired DE573344C (en) 1930-10-25 1930-10-25 Process for repairing damaged centrifugal casting molds

Country Status (1)

Country Link
DE (1) DE573344C (en)

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