DE622275C - Carbide crucible - Google Patents

Carbide crucible

Info

Publication number
DE622275C
DE622275C DEK130051D DEK0130051D DE622275C DE 622275 C DE622275 C DE 622275C DE K130051 D DEK130051 D DE K130051D DE K0130051 D DEK0130051 D DE K0130051D DE 622275 C DE622275 C DE 622275C
Authority
DE
Germany
Prior art keywords
carbide
metals
carbide crucible
metal
carbides
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
DEK130051D
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.)
Buderus Edelstahl GmbH
Original Assignee
Stahlwerke Roechling Buderus 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 Stahlwerke Roechling Buderus AG filed Critical Stahlwerke Roechling Buderus AG
Priority to DEK130051D priority Critical patent/DE622275C/en
Application granted granted Critical
Publication of DE622275C publication Critical patent/DE622275C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C04B35/56—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 carbides or oxycarbides
    • C04B35/5607—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 carbides or oxycarbides based on refractory metal carbides
    • C04B35/5622—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 carbides or oxycarbides based on refractory metal carbides based on zirconium or hafnium carbides
    • 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
    • C04B35/56—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 carbides or oxycarbides

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)

Description

Karbidtiegel Zusatz zum Patent 469433 Gegenstand der Erfindung ist ein Karbidtiegel nach Patent 469 433. Die bekannten Karbidtiegel, z. B. aus gesintertem Tantalkarbid, haben den Vorteil, daß die darin erschmolzenen Metalle, Metallgemische und Metallkarbide keiner. Kohlenstoff aufnehmen. Sie haben aber den Nachteil geringerer Festigkeit und geringerer Leitfähigkeit für den elektrischen Strom. Eine weitere Ausbildung der Erfindung nach Patent 469433 besteht nun darin, Tantal- oder Zirkonkarbid oder den Gemischen dieser Karbide, Zusatzmetalle mit einem Schmelzpunkt zwischen i ioo und 3000° C zuzusetzen. Hierdurch wird nicht nur die Festigkeit der Tiegel erhöht, sondern auch die elektrische Leitfähigkeit verbessert, so daß sie sich insbesondere für Hochfrequenzbeheizung eignen. Es sind zwar Gegenstände aus gesintertem Tantalkarbid mit Zusätzen von verhältnismäßig leicht schmelzenden Metallen bekannt. Es ist aber noch nicht vorgeschlagen worden, mit derartigen Zusätzen versehene Karbide als Schmelztiegel zu verwenden, die elektrisch, insbesondere auch durch Hochfrequenzstrom beheizt werden sollen. Die Wahl der Metallzusätze richtet sich nach dem zu schmelzenden Metall bzw. der Metallegierung oder den Metallkarbiden.Carbide crucible addendum to patent 469433 is the subject of the invention a carbide crucible according to patent 469,433. The known carbide crucibles, e.g. B. from sintered Tantalum carbide have the advantage that the metals melted in it are metal mixtures and metal carbides none. Absorb carbon. But they have the disadvantage of lesser Strength and lower conductivity for the electric current. Another Formation of the invention according to patent 469433 now consists in tantalum or zirconium carbide or the mixtures of these carbides, filler metals with a melting point between ioo and 3000 ° C. to be added. This not only increases the strength of the crucible increases, but also improves the electrical conductivity, so that they are in particular suitable for high frequency heating. It is true that they are objects made of sintered tantalum carbide known with the addition of relatively easily melting metals. But it is has not yet been proposed, carbides provided with such additives as crucibles to use which is electrically heated, in particular also by high-frequency current should be. The choice of metal additives depends on the one to be melted Metal or the metal alloy or the metal carbides.

Man fügt vorteilhaft zu dem Tiegelmateriäl io °/o reine Metallzusätze von Metallen mit Schmelzpunkten von iioo bis 3000° C hinzu. Die Zusatzmetalle können beispielsweise Cu, Fe, Ni, Cr, Ti, W, Mo usw. sein.It is advantageous to add 100% pure metal additives to the crucible material of metals with melting points from 100 to 3000 ° C. The additional metals can for example, Cu, Fe, Ni, Cr, Ti, W, Mo, etc. be.

Die neuen Karbidtiegel sind zum Schmelzen verhältnismäßig großer Mengen geeignet, so daß ein wesentlicher Fortschritt beim Erschmelzen von hochschmelzenden Metallen und Karbiden erzielt wird.The new carbide crucibles are designed for melting relatively large quantities suitable, so that a significant advance in the melting of refractory Metals and carbides.

Claims (1)

PATENTANSPRUCH: Karbidtiegel gemäß Patent 469 433, dadurch gekennzeichnet, daß gesinterte-Tantal- oder Zirkonkarbide oder deren Mischungen Metalle- mit Schmelzpunkten zwischen iioo und 3000° C enthalten.PATENT CLAIM: Carbide crucible according to patent 469 433, characterized in that that sintered tantalum or zirconium carbides or their mixtures are metals with melting points contained between iioo and 3000 ° C.
DEK130051D 1933-05-09 1933-05-09 Carbide crucible Expired DE622275C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK130051D DE622275C (en) 1933-05-09 1933-05-09 Carbide crucible

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK130051D DE622275C (en) 1933-05-09 1933-05-09 Carbide crucible

Publications (1)

Publication Number Publication Date
DE622275C true DE622275C (en) 1935-11-23

Family

ID=7247028

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK130051D Expired DE622275C (en) 1933-05-09 1933-05-09 Carbide crucible

Country Status (1)

Country Link
DE (1) DE622275C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1047388B (en) * 1958-05-17 1958-12-24 Walter Eckhoff Dipl Ing Electrode for electrical melting of glass, enamel or glazes
DE1758159B1 (en) * 1967-04-13 1972-02-03 Air Reduction Process for the production of a surface-heated crucible for holding molten metal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1047388B (en) * 1958-05-17 1958-12-24 Walter Eckhoff Dipl Ing Electrode for electrical melting of glass, enamel or glazes
DE1758159B1 (en) * 1967-04-13 1972-02-03 Air Reduction Process for the production of a surface-heated crucible for holding molten metal

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