Process for producing ceramic glow plugs

A process for producing a ceramic glow plug which has more than two layers, comprises forming the layers by coextrusion. The layers are symmetric to the plug axis, are coaxial, and consist of a conducting layer and/or a layer, which is perpendicular to the plug axis . The layers are applied by spray...

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Bibliographische Detailangaben
Hauptverfasser:	GOEB, OLIVER, WEISSENBACHER, JOHANN, FRASSEK, LUTZ, HOUBEN, HANS, VON WATZDORF, HENNING, ALLGAIER, MARTIN
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COMBUSTION APPARATUS COMBUSTION PROCESSES EXTINGUISHING-DEVICES HEATING IGNITION LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER TRANSPORTING WEAPONS WORKING CEMENT, CLAY, OR STONE
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Beschreibung
Zusammenfassung:	A process for producing a ceramic glow plug which has more than two layers, comprises forming the layers by coextrusion. The layers are symmetric to the plug axis, are coaxial, and consist of a conducting layer and/or a layer, which is perpendicular to the plug axis . The layers are applied by spraying, pressing or dipping. The layers are sintered and are then thermally sprayed and ground. A mantle is applied by spraying, pressing or dipping. The plug consists of an inner cylinder (1), an insulating layer (2), the coaxial conducting layer (3) and a heating layer (4). Verfahren zum Herstellen eines keramischen Glühstiftes, der aus mehr als zwei insbesondere zur Glühstiftachse koaxial und symmetrisch angeordneten Schichten besteht. Die Schichten der Schichtstruktur werden durch Koextrusion hergestellt.