Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Layered – stratified traversely of length – or multiphase...
Patent
1991-01-11
1992-11-03
Lowe, James
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Layered, stratified traversely of length, or multiphase...
26417711, 26417716, 2642092, B32B 3130
Patent
active
051606844
ABSTRACT:
A method and apparatus for shaping ceramic multi-layer structural bodies by extruding through a die. Ceramic molding compounds having different properties are fed under pressure, united and integrated in an extruding apparatus, while thicknesses of layers of the respective ceramic molding compounds are controlled by adjusting extruding pressures of the respective ceramic molding compounds. The extruding apparatus includes a die having a tip end opening of a given shape corresponding to the structural bodies to be extruded, a first extruding means capable of feeding a ceramic molding compound to the die under a given pressure, and a second extruding means for feeding another ceramic molding compound to the die. The another ceramic molding compound is different from that to be extruded through the first extruding means. The second extruding means is provided separately from the first extruding means.
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Fiorilla Christopher A.
Lowe James
NGK Insulators Ltd.
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