Method for producing dies for extruding ceramic honeycomb bodies

Details Method for producing dies for extruding ceramic honeycomb bodies Method for producing dies for extruding ceramic honeycomb bodies

1992-03-23

1993-10-26

Beck, Shrive

Coating processes

Coating by vapor, gas, or smoke

427237, 427255, 118715, C23C 1600

Patent

active

052564495

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 et al.

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