Casting apparatus for low-melting metals having two or more...

Details Casting apparatus for low-melting metals having two or more... Casting apparatus for low-melting metals having two or more...

B - Operations, Transporting

22

D

B22D 41/02 (2006.01) B22C 3/00 (2006.01) B22D 41/54 (2006.01)

Patent

CA 2079859

ABSTRACT OF THE DISCLOSURE Disclosed herein is a casting apparatus for low- melting metals which has a coating layer of two-layered structure which hardly reacts with low-melting metals, adheres firmly to the substrate, and protects the substrate from thermal and mechanical shocks for a long period of time. The layer in contact with the substrate contains glass powder having a melting point below 1000°C and at least one binder selected from silicates and phosphates. The layer in contact with molten metal contains 5 - 80 wt% of at least one fluorine compound (as a corrosion resistant material) having a melting point of above 700°C. Owing to the multiple layers, each having a specialized function, the casting apparatus has improved durability over a long period of time. - 25 -

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