Method and apparatus for casting metals
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United States of America
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Jun 22, 1982
Grant Date -
N/A
app pub date -
May 5, 1980
filing date -
Jan 28, 1977
priority date (Note) -
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Abstract
Method and apparatus for casting a metal article in a mold at least as long as the article, utilizing a cooled mold of elongated form having top and bottom portions. The method includes the steps of introducing molten metal from a source through the bottom portion of the mold, flowing molten metal into the mold so as to form a solidifying casting shell which .Iadd.a .Iaddend.during casting occupies at least 40% of the cross-sectional mold area and .Iadd.a .Iaddend.has a molten core, and flowing molten metal from the source through the core towards the mold top .Iadd.at a filling rate, dependent on the mold cross sectional area, such that the product produced will have a relatively fine grained structure throughout the cross-section thereof.Iaddend..
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