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US 3,930,875 AGranted
Pump member for molten metal
AssigneeTokyo Shibaura Electric Co., Ltd.
InventorsToshihiko Ochiai, Mitsutoshi Hirano, Hiroshi Inoue
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Abstract
A pump member for molten metal manufactured from a sintered mass including aluminium nitride as a major component and 0.1 to 10% by weight of at least one oxide selected from the group consisting of oxides of Group IIIA elements of the Periodic Table.
Claims7
A pump member of a hot chamber type aluminium metal die casting machine which directly contacts molten aluminium metal in operation, consisting essentially of a sintered mass of a powdered mixture of the following ingredients in the percentages by weight indicated:
- rare earth oxide 0.1 to 10% metal silicate 0.2 to 8% aluminum oxide 0 to 10% aluminum nitride balance,
- wherein said metal silicate is selected from the group consisting of aluminium silicate, magnesium silicate, calcium silicate, feld spars, augites, olivines and micas.
Dependencies are inferred from the claim text.