Metal founding – Means to shape metallic material – Continuous or semicontinuous casting
Patent
1993-12-06
1996-08-13
Lin, Kuang Y.
Metal founding
Means to shape metallic material
Continuous or semicontinuous casting
164337, 222591, B22D 4116, B22D 4150
Patent
active
055446957
ABSTRACT:
A system and a metering assembly are both disclosed, and both relate to reducing the vortexing which can occur during the outflow of molten metal from a holding reservoir to a mold during casting operations. The system includes a first molten metal holding and pouring box with first predetermined dimensions, a second molten metal holding and pouring box with second predetermined dimensions which are less than said first predetermined dimensions and which is positioned relative to said first molten metal holding and pouring box to receive a flow of molten metal therefrom, a first flow control device for controlling the outflow of molten metal located at the bottom region of the first molten metal holding and pouring box, an antivortexing insert located in an inlet portion of said first flow control device for controlling the outflow of molten metal and in direct contact with the molten metal in said holding and pouring box. The antivortexing insert has at least one opening and at least one vane for interacting with the molten metal as it flows into the inlet portion of the first flow control device to reduce vortexing. In its broadest aspect, the present invention is directed to antivortexing insert for a metal pouring vessel including an outlet orifice having a central opening therein for the passage of molten metal therethrough. The antivortexing insert comprises at least one vane extending across the central opening for interacting with molten metal flowing therethrough. The antivortexing insert is located at an inlet region of the central opening.
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Patent Abstracts of Japan, vol. 12, No. 294 (M-739((3141, 11 Aug. 1988 & JP 63 072 475 (Nippon Kokan KK) 2 Apr. 1988.
Patent Abstracts of Japan, vol. 13, No. 118 (M-806) (3466) 23 Mar. 1989 & JP 63 295 056 (NKK Corp) 1 Dec. 1988.
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