DE881324C - Mold for the production of ceramic bodies - Google Patents

Mold for the production of ceramic bodies

Info

Publication number
DE881324C
DE881324C DES16490D DES0016490D DE881324C DE 881324 C DE881324 C DE 881324C DE S16490 D DES16490 D DE S16490D DE S0016490 D DES0016490 D DE S0016490D DE 881324 C DE881324 C DE 881324C
Authority
DE
Germany
Prior art keywords
mold
production
ceramic bodies
plaster
molds
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
DES16490D
Other languages
German (de)
Inventor
Gustav Voigt
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to DES16490D priority Critical patent/DE881324C/en
Application granted granted Critical
Publication of DE881324C publication Critical patent/DE881324C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/26—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor
    • B28B1/261—Moulds therefor
    • B28B1/262—Mould materials; Manufacture of moulds or parts thereof
    • B28B1/264—Plaster

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Mold Materials And Core Materials (AREA)
  • Producing Shaped Articles From Materials (AREA)

Description

Gießform für die Herstellung keramischer Körper Die in, der Keramik Üblichen Gießformen sind aus Gips hergestellt und müssen, um ihre Wasseraufnahmefestigkeit zu behalten, zwecks Ermöglichung einer schnellen Fertigung immer wieder einer Trocknung unterworfen werden. Infolge ihrer geringen Temperaturwechselbeständigkeit weisen die Gipsformen eine verhältnismäßig geringe Lebens,dauer auf. Es ergibt sich ein großer Gipsbedarf, der die Wirtschaftlichkeit der Fertigung sehr nachteilig beeinflußt.Casting mold for the manufacture of ceramic bodies Die in, the ceramic Usual casting molds are made of plaster of paris and need to be water-absorbent to keep drying again and again in order to enable quick production be subjected. As a result of their low resistance to temperature changes the plaster molds have a relatively short lifespan. It turns out to be a large gypsum requirement, which has a very negative effect on the economy of production.

Gemäß der Erfindung wird eine Verbesserung derartiger Gießformen dadurch erzielt, daß diese aus Gips und Sc#hamotte hergestellt sin#d. Zweckmäßig besteht die Form aus 401/o Gips und' 6o'/o Schamottemehl. Derartige Gießformen weisen gegenüber den reinen Gipsformen eine vergrößerte Ansauggeschwindigkeit auf. Auch ist infolge ihrer besseren Temperaturweffiselbeständigkeit die Lebensdauer bei gleichbleibender Qualität der Gießkörper bedeutend, höher. Da Schamottemehl in keramisc#hen Betrieben als Abfallprodukt anfällt, ist vor allem,die Wirtschaftlichkeit der neuen Gießformen gegenüber reinen Gipsformen sehr beachtlich. Es kann Gips in großem Umfang eingespart werden. Die neue Gießform weist eine be- deutend bessert Temperaturwechselbeständigkeit auf und kann so Gchneller bei höheren-Temperatu-ren getrocknet wer-den. Auch #die mechanische Festigkeit ist gegenüber reinen Gips.formen höher, so daß sich z. B. scharfkantige Einkerbungen und Vertiefungen bedeutend länger halten. Aus der neuen Masse können auch Trockenunterlagen (in Form von Platten) für keramische Körper hergestellt werden.According to the invention, an improvement in such casting molds is achieved in that they are made from plaster of paris and hamotte. The mold expediently consists of 401 / o plaster and '6o' / o firebrick flour. Such casting molds have an increased suction speed compared to the pure plaster molds. Also, because of their better temperature resistance, the service life is significantly higher while the quality of the castings remains the same. Since fireclay flour is a waste product in ceramic companies, the economic efficiency of the new casting molds compared to pure plaster molds is very considerable. A large amount of plaster of paris can be saved. The new mold has a loading pointing improved thermal shock resistance and can thus Gchneller at higher-tempera-ren dried who-the. The mechanical strength is also higher compared to pure plaster molds, so that e.g. B. keep sharp-edged notches and depressions significantly longer. The new compound can also be used to produce drying pads (in the form of plates) for ceramic bodies.

Claims (2)

PATENTANSPRÜCHE-i. Gießform für die Herstellung keramischer Körper, dadurch gekennzeichnet, daß die Form ans Gips und Schamotte od. dgl. besteht. ' PATENT CLAIMS-i. Casting mold for the production of ceramic bodies, characterized in that the mold is made of plaster of paris and chamotte or the like. ' 2. Gießform nach Anspruch i, dadurch gekennzeichnet, daß die Form bis zu 70V0 gemahlene Schamotte enthält.2. Casting mold according to claim i, characterized in that the mold contains up to 70V0 ground chamotte.
DES16490D 1944-08-01 1944-08-01 Mold for the production of ceramic bodies Expired DE881324C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES16490D DE881324C (en) 1944-08-01 1944-08-01 Mold for the production of ceramic bodies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES16490D DE881324C (en) 1944-08-01 1944-08-01 Mold for the production of ceramic bodies

Publications (1)

Publication Number Publication Date
DE881324C true DE881324C (en) 1953-06-29

Family

ID=7475226

Family Applications (1)

Application Number Title Priority Date Filing Date
DES16490D Expired DE881324C (en) 1944-08-01 1944-08-01 Mold for the production of ceramic bodies

Country Status (1)

Country Link
DE (1) DE881324C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1269935B (en) * 1964-02-15 1968-06-06 Battelle Institut E V Permanent form for plastic and castable ceramic bodies
DE1279620B (en) * 1955-04-29 1968-10-10 Budd Co Forming tool, in particular die for the production of pressed sheet metal parts, and method for its production

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1279620B (en) * 1955-04-29 1968-10-10 Budd Co Forming tool, in particular die for the production of pressed sheet metal parts, and method for its production
DE1269935B (en) * 1964-02-15 1968-06-06 Battelle Institut E V Permanent form for plastic and castable ceramic bodies

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