Coating apparatus – Gas or vapor deposition
Patent
1993-07-08
1994-07-12
Bueker, Richard
Coating apparatus
Gas or vapor deposition
C23C 1600
Patent
active
053285131
ABSTRACT:
A method for producing dies for extruding ceramic honeycomb structural bodies is provided which can simultaneously produce in at least one stage a number of dies having a uniform vapor deposited film formed on the dies by chemical vapor deposition, and which has high production efficiency and decreases the production cost of the dies. The method includes the steps of forming die members having extrusion grooves and a plurality of holes for supplying a batch of ceramic raw materials respectively communicated with the extrusion grooves, and coating the die members with an abrasive-resistant material by a chemical vapor deposition operation, including forming the coating of an abrasive-resistant material on a plurality of die members simultaneously by chemical vapor depositing, while regulating a raw material gas for the chemical vapor deposition supplied from gas discharge holes of a rotatable raw material gas inlet pipe to flow to the die members.
REFERENCES:
patent: 4574459 (1986-03-01), Peters
patent: 4615294 (1986-10-01), Scapple
Derwent Japanese Patent Report, accession No. 88-202201 [29] Derwent Publications Ltd., London, GB; & JP-A-63-140087 (Ishikawajima-Harima Juko).
Arai Kenji
Suzuki Kazuo
Ueda Hiroshi
Bueker Richard
NGK Insulators Ltd.
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