Lime-free preformed shapes for casting aluminum

Details Lime-free preformed shapes for casting aluminum Lime-free preformed shapes for casting aluminum

B - Operations, Transporting

28

B

25/123, 22/49

B28B 1/14 (2006.01) B22C 1/18 (2006.01) C04B 35/14 (2006.01)

Patent

CA 2034368

-10- LIME-FREE PREFORMED SHAPES FOR CASTING ALUMINUM ABSTRACT OF THE DISCLOSURE Preformed silica shapes such as pins and spouts useful in the casting of molten aluminum are provided by which a high strength chemical bond is developed by adding 2 to 10 wt. % of an alkali phosphate-modified alumino-silicate binder to a fused silica mix. To this silica and binder mix, sufficient water is added to obtain a castable consistency. Then, a shape is cast, dried, and shipped for service.

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