Centrifugal casting die, method for manufacturing thereof as well as casting material, blade obtained therefrom and method for manufacturing thereof
AssigneeCanon Kasei Kabushiki Kaisha
InventorsTakashi Tomiyama, Hisao Kumano, Koichi Sato, Taku Hatanaka
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Abstract
A centrifugal casting die according to the present invention includes a cylindrical die body, a backup layer releasably bonded to the inner surface 12b of the die body, and a top layer bonded to be integral to the inner surface of the backup layer, for holding a centrifugally casting material supplied to the inner surface thereof, whereby the centrifugally casting material having a uniform thickness is easily releasable from the centrifugal casting die without using a die-lubricant.
Claims20
A centrifugal casting die comprising:
- a cylindrical die body;
- a backup layer releasably bonded to the inner surface of the cylindrical die body;
- and
- a top layer bonded to be integral with the inner surface of the backup layer, wherein
- the top layer releasably holds a centrifugally casting material supplied to the inner surface thereof.
A method for manufacturing a centrifugal casting die comprising the steps of:
- supplying a first liquid agent for forming a backup layer to be releasably bonded to the inner surface of the cylindrical die body;
- rotating the die body so that the first liquid agent is uniformly spread over the entirety of the inner surface of the die body;
- curing the first liquid agent spread over the entirety of the inner surface of the die body to form the backup layer;
- supplying a second liquid agent to be bonded to be integral with the inner surface of the backup layer to form a top layer;
- rotating the die body so that the second liquid agent is uniformly spread over the entirety of the inner surface of the backup layer;
- and
- curing the second liquid agent spread over the entirety of the inner surface of the die body to form the top layer.
Dependencies are inferred from the claim text.