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US 6,790,025 B2Granted
Extrusion molding apparatus
AssigneeDenso Corporation
InventorsSatoru Yamaguchi, Hiromi Katou, Yasunao Miura
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AssigneeDenso Corporation
InventorsSatoru Yamaguchi, Hiromi Katou, Yasunao Miura
Estimating the term…
An extrusion molding apparatus capable of improving the extrusion rate of the ceramic material without a major reconstruction of a drive system is disclosed. The extrusion molding apparatus comprises screw extruders (2, 3) including housings (29, 39) having screws (4, 5) built therein, wherein the ceramic material introduced into the housings (29, 39), respectively, is extruded by way of the forward end extrusion ports by rotating the screws (4, 5). The screws (4, 5) built in the screw extruders (2, 3), respectively, include pressure portions (41, 51) with the feed rate per revolution progressively decreased toward the forward end extrusion port, and extended portions (43, 53) with the feed rate per revolution progressively increased toward the forward end extrusion port.
An extrusion molding apparatus comprising a housing, the housing including a screw built into the housing, a ceramic material being introduced into the housing and extruded by way of a forward end extrusion port by rotating the screw, wherein:
An extrusion molding apparatus comprising a screw extruder including a housing having screws built therein adapted to rotate so that a ceramic material introduced into the housing is extruded by way of a forward end extrusion port, wherein:
Dependencies are inferred from the claim text.