EP0246423A2 - Procédé et dispositif pour une liaison résistante de moules en céramique avec des métaux - Google Patents

Procédé et dispositif pour une liaison résistante de moules en céramique avec des métaux Download PDF

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Publication number
EP0246423A2
EP0246423A2 EP87104218A EP87104218A EP0246423A2 EP 0246423 A2 EP0246423 A2 EP 0246423A2 EP 87104218 A EP87104218 A EP 87104218A EP 87104218 A EP87104218 A EP 87104218A EP 0246423 A2 EP0246423 A2 EP 0246423A2
Authority
EP
European Patent Office
Prior art keywords
ceramic
metal
molded part
connection
ceramic molded
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.)
Withdrawn
Application number
EP87104218A
Other languages
German (de)
English (en)
Other versions
EP0246423A3 (fr
Inventor
Werner Dr. Schultze
Klaus-Dieter Dr. Partz
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 Aluminium Werke AG
Original Assignee
Vereinigte Aluminium Werke 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 Aluminium Werke AG filed Critical Vereinigte Aluminium Werke AG
Publication of EP0246423A2 publication Critical patent/EP0246423A2/fr
Publication of EP0246423A3 publication Critical patent/EP0246423A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/14—Casting in, on, or around objects which form part of the product the objects being filamentary or particulate in form

Definitions

  • the invention relates to a method and a device for the firm connection of shaped ceramic parts with metals, in particular with a metallic support made of cast steel, the shaped ceramic part being surrounded by a material and being thermally bonded to the metal.
  • the object of the invention is to provide a firm connection of shaped ceramic parts with metals, which can also absorb relatively high thermal shock loads without impairing the material and strength.
  • This object is achieved in that an elastic, fire-resistant material absorbing thermal expansion is used as the material, and in that the thermal connection of the ceramic molded part to the metal and / or metallic carrier is carried out by encapsulating liquid metal.
  • an elastic, fire-resistant material absorbing thermal expansion is used as the material, and in that the thermal connection of the ceramic molded part to the metal and / or metallic carrier is carried out by encapsulating liquid metal.
  • the ceramic molded part is surrounded by the material in the entire connection area and connected to it or to the metallic carrier by pouring liquid metal. This ensures an all-round compensation of the thermal shock loads between the ceramic molded part and the metallic carrier.
  • the metal-ceramic connection consists of a ceramic molded part (10) with a conical cross section and a metallic support (11), which are connected to one another via a material surrounding the outer edge of the ceramic molded part (10) (12), which consists of a thermal expansion absorbing, elastic, refractory material, are positively and non-positively connected.
  • This metal-ceramic connection is produced, as shown in FIG. 2, in such a way that the ceramic molded part (10) is externally spanned with the material (12), placed in the center of a mold from above and then cast with liquid metal (11) .
  • the cooled and solidified metal (11) also forms the carrier of the ceramic molded part (10).
  • the material (12) located between the metal melt (11) and the ceramic molded part (10) also shrinks more or less is strongly pressed together.
  • a non-positive connection is also very advantageously brought about by the shrink fit of the ceramic molded part (10) located in the metallic carrier (11).
  • the conical design of the ceramic molded part (10) enables uneven solidification pressures to be dampened and compensated for even with asymmetrical thermal loads during the shrinking process.
  • Another advantage of this conical design of the ceramic molded part (10) is that the ceramic molded part (10) can never come loose even at high thermal and mechanical loads and can fall out of the metallic carrier (11).
  • the materials used here are in particular ceramic fibers or fibers of borides, carbides or aluminum oxides, which can absorb very high and strongly fluctuating, different thermal expansions between the ceramic molded part (10) and the metal carrier (11), without impairing the solid Connection and the materials to be connected.
  • the thickness of the material (12) can also vary depending on the Thermal expansion coefficients between the metallic carrier (11) and the ceramic molded part (10) are each dimensioned and coordinated such that a firm connection of the ceramic molded part (10) with the metallic carrier (11) is ensured even under extreme thermal and mechanical loads.
  • Hard metals or soft metals, in particular aluminum alloys with high coefficients of thermal expansion can be used to cast or cast the ceramic shaped bodies (10). What is important here, however, is the choice of the respective material with regard to the composition and the arrangement between the ceramic molded part (10) and the metallic carrier (11).
  • a ceramic molded part (16) with a conical cross-section can also be very advantageously embedded in a corresponding recess (17) of a metallic support (18) made of cast steel.
  • a gap (20) for receiving the material (21) between the outer edge (19) of the ceramic molded part (16) and the metallic carrier (18). and the molten metal (22) is provided.
  • the ceramic molded part (16) is connected to the carrier (18) by pouring liquid metal into the gap between the material (21) and the carrier (18).
  • This metal-ceramic connection shown in FIG. 3 according to the invention is particularly suitable as wear protection for thrust grate coolers, in particular in the cooling goods receiving area, where the grate cooler plates are exposed to a particularly high abrasion and temperature change load.
  • the object of the invention is not to the embodiments shown in the drawing figures limited.
  • the ceramic molded parts can also be designed with straight edges and in any other way. The same also applies to the metallic supports of the ceramic molded parts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Products (AREA)
  • Laminated Bodies (AREA)
  • Compositions Of Oxide Ceramics (AREA)
EP87104218A 1986-05-23 1987-03-21 Procédé et dispositif pour une liaison résistante de moules en céramique avec des métaux Withdrawn EP0246423A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3617456 1986-05-23
DE19863617456 DE3617456A1 (de) 1986-05-23 1986-05-23 Verfahren und vorrichtung zur festen verbindung von keramischen formteilen mit metallen

Publications (2)

Publication Number Publication Date
EP0246423A2 true EP0246423A2 (fr) 1987-11-25
EP0246423A3 EP0246423A3 (fr) 1988-03-02

Family

ID=6301529

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87104218A Withdrawn EP0246423A3 (fr) 1986-05-23 1987-03-21 Procédé et dispositif pour une liaison résistante de moules en céramique avec des métaux

Country Status (3)

Country Link
EP (1) EP0246423A3 (fr)
JP (1) JPS62275562A (fr)
DE (1) DE3617456A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2663250A1 (fr) * 1990-06-19 1991-12-20 Peugeot Procede de fabrication de pieces en alliage d'aluminium coule comportant un insert et culasse de moteur a combustion interne obtenue par ce procede.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69804188D1 (de) 1997-11-04 2002-04-18 Konishiroku Photo Ind Lichtempfindliches photographisches Silberhalogenidmaterial
DE10260893A1 (de) * 2002-12-17 2004-07-15 W. Haldenwanger Technische Keramik Gmbh & Co Kg Förderschnecke für das Fördern von Schüttgütern bei erhöhten Temperaturen

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH493440A (de) * 1968-08-20 1970-07-15 Foerderung Forschung Gmbh Verfahren zur Herstellung einer vakuumdichten, mechanisch festen Verbindung eines oxydkeramischen Isolierkörpers mit einem elektrisch leitenden Metallkörper
US3994430A (en) * 1975-07-30 1976-11-30 General Electric Company Direct bonding of metals to ceramics and metals
SE426581B (sv) * 1976-04-05 1983-01-31 Brunswick Corp Laminerat hogtemperaturmaterial och sett att framstella detsamma
NL7608690A (nl) * 1976-08-05 1978-02-07 Philips Nv Werkwijze voor het monteren van een keramische mantel in een metalen huis.
DE2822627A1 (de) * 1978-05-24 1979-11-29 Volkswagenwerk Ag Ceranox-verbindung und verfahren zu ihrer herstellung
FR2431335A1 (fr) * 1978-07-21 1980-02-15 Peugeot Procede de revetement de cavites internes de pieces moulees, notamment de chapelles d'echappement de moteur a combustion interne
DD146582A1 (de) * 1979-10-15 1981-02-18 Grummt Heinz Georg Verfahren zur herstellung einer hochtemperaturbestaendigen metall-keramik-verbindung
DD156078A1 (de) * 1981-01-16 1982-07-28 Dieter Reif Verfahren zur herstellung von verbundwerkstuecken
CH657791A5 (de) * 1982-10-26 1986-09-30 Fischer Ag Georg Verfahren zur herstellung eines verbundkoerpers aus metall-keramik-verbundguss.
DE3422097A1 (de) * 1984-06-14 1985-12-19 Klöckner-Humboldt-Deutz AG, 5000 Köln Verbindung von hochverschleissfesten platten, insbesondere keramikplatten, mit einem vor verschleiss zu schuetzendem traeger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2663250A1 (fr) * 1990-06-19 1991-12-20 Peugeot Procede de fabrication de pieces en alliage d'aluminium coule comportant un insert et culasse de moteur a combustion interne obtenue par ce procede.
EP0462850A1 (fr) * 1990-06-19 1991-12-27 Automobiles Peugeot Procédé de fabrication de pièces en alliage d'aluminium coulé comportant un insert et culasse de moteur à combustion interne obtenue par ce procédé

Also Published As

Publication number Publication date
DE3617456A1 (de) 1987-12-03
EP0246423A3 (fr) 1988-03-02
JPS62275562A (ja) 1987-11-30

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Inventor name: PARTZ, KLAUS-DIETER, DR.

Inventor name: SCHULTZE, WERNER, DR.