Casting apparatus whose cooling flow passage is formed by welding and method for manufacturing the same
AssigneeSuzukiseiki Corporation
InventorKikuo SUZUKI
Life of this patent
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Abstract
A casting apparatus for manufacturing a cast product from molten metal includes a molten metal and a cooling portion. The molten metal contacts a surface for contact with the molten metal. The cooling portion forms a cooling flow passage. The cooling flow passage is configured to cool the molten metal contacting surface. At least a part of an inner surface of the cooling flow passage is constituted of a welding portion formed by welding, the welding portion sealing the cooling flow passage. The welding portion is constituted such that an exposure to the molten metal becomes equal to or less than a predetermined ratio with respect to an area of the welding portion constituting the inner surface of the cooling flow passage.
Claims10
A casting apparatus for manufacturing a cast product from molten metal, the casting apparatus comprising:
- a molten metal contacting surface for contact with the molten metal;
- and
- a cooling portion forming a cooling flow passage, the cooling flow passage being configured to cool the molten metal contacting surface, wherein
- at least a part of an inner surface of the cooling flow passage is constituted of a welding portion formed by welding, the welding portion sealing the cooling flow passage, and
- the welding portion is constituted such that an exposure to the molten metal becomes equal to or less than a predetermined ratio with respect to an area of the welding portion constituting the inner surface of the cooling flow passage.
A method for manufacturing a casting apparatus for manufacturing a cast product from molten metal, the method comprising:
- providing a molten metal contacting surface for contact with the molten metal and a material before quenching, a part of a cooling flow passage being formed at the material, the cooling flow passage being configured to cool the molten metal contacting surface, wherein
- welding at least a part of an inner surface of the cooling flow passage to form a welding portion configured to seal the cooling flow passage, and
- the welding portion is constituted such that an exposure to the molten metal becomes equal to or less than a predetermined ratio with respect to an area of the welding portion constituting the inner surface of the cooling flow passage.
Dependencies are inferred from the claim text.