DE763200C - Production of porous immersion molds for the production of elastic seamless hollow bodies - Google Patents

Production of porous immersion molds for the production of elastic seamless hollow bodies

Info

Publication number
DE763200C
DE763200C DEST56085D DEST056085D DE763200C DE 763200 C DE763200 C DE 763200C DE ST56085 D DEST56085 D DE ST56085D DE ST056085 D DEST056085 D DE ST056085D DE 763200 C DE763200 C DE 763200C
Authority
DE
Germany
Prior art keywords
production
hollow bodies
seamless hollow
elastic
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
DEST56085D
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.)
BERLIN PORZELLAN MANUF
Original Assignee
BERLIN PORZELLAN MANUF
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 BERLIN PORZELLAN MANUF filed Critical BERLIN PORZELLAN MANUF
Priority to DEST56085D priority Critical patent/DE763200C/en
Application granted granted Critical
Publication of DE763200C publication Critical patent/DE763200C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/14—Dipping a core
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Description

Erzeugung poriger Tauchformen zur Herstellung elastischer nahtloses Hohlkörper Zur Herstellung nahtloser Hohlkörper aus Kautschuk od. dgl. elastischen Stoffen bedient man sich hohler Tauchformen, die aus gebrannten Mischungen mineralischer Stoffe (Ton, Feldspat, Kaolin, Quarz, Sand usw.) bestehen.Production of porous immersion molds for the production of elastic seamless Hollow bodies For the production of seamless hollow bodies made of rubber or similar elastic ones Fabrics are made from hollow dipping molds made from fired mixtures of minerals Substances (clay, feldspar, kaolin, quartz, sand, etc.) exist.

Diese Tauchformen sind porös. Nach dem Eintauchen der Form in eine Kautschuklösung wird in ihren Hohlraum waIme Luft eingeblasen oder die im Hohlraum befindliche Luft erwärmt, so daß die Luft durch die poröse Wandung nach außen tritt und zwischen der Form und dem elastischen Überzug eine Schicht bildet, die ein leichtes Abziehen des elastischen Hohlkörpers von der Tauchform ermöglicht.These dipping forms are porous. After dipping the mold in a Rubber solution is blown into its cavity or the air inside the cavity The air is heated so that the air passes through the porous wall to the outside and forms a layer between the mold and the elastic cover which is a light weight Pulling off the elastic hollow body from the immersion mold allows.

Die Porosität dieser bekannten Tauchformen ist verhältnismäßig gering, weil die Poren durch den beim Brennen der keramischen Masse schmelzenden Feldspat verengt werden. Die Folge davon ist, daß es eines verhältnismäßig hohen Druckes der durch den Tauchkörper hindurchzutreibenden Luft und längerer Zeit bedarf, um die Luftschicht zwischen der Tauchform und dem elastischen Hohlkörper zu bilden.The porosity of these known dipping molds is relatively low, because the pores are created by the feldspar that melts when the ceramic mass is fired be narrowed. The consequence of this is that there is a relatively high pressure the air to be driven through the immersion body and a longer time is required to to form the air layer between the dipping mold and the elastic hollow body.

Zweck vorliegender Erfindung ist die Erzeugung keramischer Tauchformen mit größerer Porosität, um das Durchdringen der in den Hohlraum eingeblasenen oder eingeschlossenen erwärmten Luft durch die Poren der Form zu erleichtern. Derartige Tauchformen haben gegenüber den bekannten eine erhöhte Stoßfestigkeit. The purpose of the present invention is to produce ceramic dipping molds with greater porosity to allow the penetration of the blown or to facilitate trapped heated air through the pores of the mold. Such Have dipping forms compared to the known an increased shock resistance.

Für die Herstellung der porigen Tauchformen wird eine Mischung von Ton, Kaolin, Bentonit od. dgl. mit Quarz, Quarzit, Sand, Flint, Sillimanit od. dgl. und Ber,Iliumoxyd, Aluminiumoxyd, Titanoxyd, Zirkonoxid od. dgl. oder mehreren Stoffen dieser Stoffgruppen verwendet. A mixture of Clay, kaolin, bentonite or the like with quartz, quartzite, sand, flint, sillimanite or the like. and ber, ilium oxide, aluminum oxide, titanium oxide, zirconium oxide or the like or several substances these groups of substances are used.

Derartige Mischungen sind im wesentlichen zur Herstellung keramischer Gegenstände bekannt. Beispielsweise werden aus silikathaltigen Stoffmischun gen, welche Berylliumoxyd enthalten, technische und wirtschaftliche Gebrauchsgegenstände mit großer Widerstandsfähigkeit gegen Säuren und hoher Druck- und Stoßfestigkeit hergestellt. Auch Mischungen aus hallischem Ton und Kaolin, Mullit und Aluminiumoxyd sind zur Erzeugung schwer schmelzbarer Gegenstände von geringer Porosität bekannt. Such mixtures are essentially for the production of ceramic Objects known. For example, mixtures of substances containing silicate which contain beryllium oxide, technical and economic utensils with great resistance to acids and high pressure and shock resistance manufactured. Also mixtures of clay and kaolin, mullite and aluminum oxide are known for the production of difficult-to-melt objects of low porosity.

Mischungen, welche gemäß vorliegender Erfindung Verwendung finden, sind wie folgt zusammengesetzt: I. 20 bis 70 Teile Ton, Kaolin, Bentonit od. dgl. oder Gemenge von zwei oder mehreren dieser Stoffe, 2. bis zu 50 Teilen Quarz, Quarzit, Sand, Flint, Sillimanit od. dgl. oder Gemenge aus zwei oder mehreren dieser Stoffe, 3. 30 bis 60 Teile Berylliumoxyd, Aluminiumoxyd, Titanoxid, Zirkonoxid oder Thoriumoxyd oder Gemenge von zwei oder mehreren dieser Stoffe. Mixtures which are used according to the present invention, are composed as follows: I. 20 to 70 parts of clay, kaolin, bentonite or the like. or mixtures of two or more of these substances, 2. up to 50 parts of quartz, quartzite, Sand, flint, sillimanite or the like or mixtures of two or more of these substances, 3. 30 to 60 parts of beryllium oxide, aluminum oxide, titanium oxide, zirconium oxide or thorium oxide or a mixture of two or more of these substances.

Eine besonders zweckmäßige Zusammensetzung besteht aus 40 Teilen Kaolin, 30 Teilen Aluminiumoxyd und 30 Teilen Quarz. Die Brenntemperatur für dieses Gemisch liegt zwischen I320 und I435- C. A particularly useful composition consists of 40 parts Kaolin, 30 parts of aluminum oxide and 30 parts of quartz. The firing temperature for this Mixture is between I320 and I435-C.

PATENTANSPRULU: Die Verwendung von Mischungen aus Ton, Kaolin, Bentonit od. dgl. mit Quarz, Quarzit, Sand, Flint, Sillimanit od. dgl. und Berylliumoxyd, Aluminiumoxyd, Titanoxyd, Zirkonoxyd od. dgl. oder mehreren Stoffen dieser Stoffgruppen zur Erzeugung von porigen gebrannten Tauchformen für die Herstellung elastischer nahtloser Hohlkörper aus Kautschuk od. dgl. elastischen Stoffen. PATENT APPLICATION: The use of mixtures of clay, kaolin, bentonite or the like with quartz, quartzite, sand, flint, sillimanite or the like and beryllium oxide, Aluminum oxide, titanium oxide, zirconium oxide or the like or several substances from these groups of substances for the production of porous, fired immersion forms for the production of elastic ones seamless hollow body made of rubber or similar elastic materials.

Claims (1)

Zur Abgrenzung des Erfindungsgegenstands vom Stand der Technik sind im Erteilungsverfahren folgende Druckschriften in Betracht gezogen worden: Deutsche Patentschriften Nur. 435 I96,564 858; französische Patentschriften Nr. 527 237, 703 346; britische Patentschriften Nr. 3110 vom Jahre 1864, 252 673; schweizerische Patentschrift Nr. I54460; österreichische Patentschrift Nr. 98 673. To differentiate the subject matter of the invention from the prior art are The following publications were considered in the granting procedure: German Patents Only. 435 I96,564 858; French patent specification No. 527 237, 703,346; British Patent Specification No. 3110 of 1864, 252,673; Swiss Patent Specification No. 154460; Austrian patent specification No. 98 673.
DEST56085D 1937-04-16 1937-04-16 Production of porous immersion molds for the production of elastic seamless hollow bodies Expired DE763200C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEST56085D DE763200C (en) 1937-04-16 1937-04-16 Production of porous immersion molds for the production of elastic seamless hollow bodies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST56085D DE763200C (en) 1937-04-16 1937-04-16 Production of porous immersion molds for the production of elastic seamless hollow bodies

Publications (1)

Publication Number Publication Date
DE763200C true DE763200C (en) 1954-01-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEST56085D Expired DE763200C (en) 1937-04-16 1937-04-16 Production of porous immersion molds for the production of elastic seamless hollow bodies

Country Status (1)

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DE (1) DE763200C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1112942B (en) * 1958-03-20 1961-08-17 Saale Glas G M B H Ceramic molding compound for the production of objects by sintering from glass powder

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR527237A (en) * 1920-11-15 1921-10-22 Buckman & Pritchard Refractory composition and its manufacturing process
AT98673B (en) * 1923-04-09 1924-12-10 Rudolf Dr Ditmar Process for the production of rubber u. Like. Articles made from the milky sap of the rubber hydrocarbon-bearing plants.
DE435196C (en) * 1922-10-03 1926-10-14 Josef Franz Kuehnel Form made of ceramic porous mass
GB252673A (en) * 1925-05-30 1927-05-23 Anode Rubber Co Ltd Method for the production of rubber goods directly from latex
FR703346A (en) * 1929-10-09 1931-04-28 Corning Glass Works Method of manufacturing refractory objects
CH154460A (en) * 1931-05-13 1932-05-15 Baeggli Emil Mixture of substances containing silicate for technical and economic utensils.
DE564858C (en) * 1929-09-05 1932-11-23 Eugene Freyssinet Method and device for producing moldings from moist mortar or concrete

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR527237A (en) * 1920-11-15 1921-10-22 Buckman & Pritchard Refractory composition and its manufacturing process
DE435196C (en) * 1922-10-03 1926-10-14 Josef Franz Kuehnel Form made of ceramic porous mass
AT98673B (en) * 1923-04-09 1924-12-10 Rudolf Dr Ditmar Process for the production of rubber u. Like. Articles made from the milky sap of the rubber hydrocarbon-bearing plants.
GB252673A (en) * 1925-05-30 1927-05-23 Anode Rubber Co Ltd Method for the production of rubber goods directly from latex
DE564858C (en) * 1929-09-05 1932-11-23 Eugene Freyssinet Method and device for producing moldings from moist mortar or concrete
FR703346A (en) * 1929-10-09 1931-04-28 Corning Glass Works Method of manufacturing refractory objects
CH154460A (en) * 1931-05-13 1932-05-15 Baeggli Emil Mixture of substances containing silicate for technical and economic utensils.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1112942B (en) * 1958-03-20 1961-08-17 Saale Glas G M B H Ceramic molding compound for the production of objects by sintering from glass powder

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