DE293402C - - Google Patents

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Publication number
DE293402C
DE293402C DENDAT293402D DE293402DA DE293402C DE 293402 C DE293402 C DE 293402C DE NDAT293402 D DENDAT293402 D DE NDAT293402D DE 293402D A DE293402D A DE 293402DA DE 293402 C DE293402 C DE 293402C
Authority
DE
Germany
Prior art keywords
parts
mixture
carbon
rolled
boric acid
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.)
Active
Application number
DENDAT293402D
Other languages
German (de)
Publication of DE293402C publication Critical patent/DE293402C/de
Active legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/02—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
    • B22C1/12—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives for manufacturing permanent moulds or cores
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Mold Materials And Core Materials (AREA)

Description

BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICHSDRUCKEREI.

Claims (2)

Patent-Ansprüche: .Patent Claims:. 1. Verfahren der Herstellung von Dauerformen für Gießereizwecke, insbesondere Gußeisen, Stahl und Metalle, durch Glühen einer Mischung eines Kohlenstoff enthaltenden Materials mit einem verkokbaren flüssigen Bindemittel, dadurch gekennzeichnet, daß die Mischung aus gemahlener Retortenkohle und gewalztem Ruß besteht, welche Mischung unter Zusatz von Borsäure mit dem dünnflüssigen verkokbaren Bindemittel versehen, stark gepreßt und dann in bekannter Weise in einem geschlossenen Ofen durchgeglüht wird.1. Process for the production of permanent molds for foundry purposes, in particular Cast iron, steel and metals, by annealing a mixture of one containing carbon Material with a coking liquid binder, characterized in that the mixture of ground Retort carbon and rolled soot are made, which mixture with the addition of boric acid provided with the thin, coking binder, strongly pressed and is then annealed in a known manner in a closed furnace. 2. Formmasse nach Anspruch 1, dadurch gekennzeichnet, daß sie aus 6 Teilen Retortenkohle, 1,5 Teilen gewalztem Ruß, 2 Teilen Gasofenteer und 0,03 Teilen Borsäure besteht.2. Molding composition according to claim 1, characterized in that it consists of 6 parts of retort carbon, 1.5 parts of rolled carbon black, 2 parts of gas furnace tar and 0.03 parts of boric acid consists.
DENDAT293402D Active DE293402C (en)

Publications (1)

Publication Number Publication Date
DE293402C true DE293402C (en)

Family

ID=548062

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT293402D Active DE293402C (en)

Country Status (1)

Country Link
DE (1) DE293402C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE752026C (en) * 1942-06-10 1953-02-09 Arthur Monzer Core for pouring steel bearing shells
DE1098677B (en) * 1955-10-11 1961-02-02 Exxon Research Engineering Co Molding compound for casting metals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE752026C (en) * 1942-06-10 1953-02-09 Arthur Monzer Core for pouring steel bearing shells
DE1098677B (en) * 1955-10-11 1961-02-02 Exxon Research Engineering Co Molding compound for casting metals

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