Metal founding – Means to shape metallic material – Continuous or semicontinuous casting
Patent
1979-10-31
1984-09-18
Lin, Kuang Y.
Metal founding
Means to shape metallic material
Continuous or semicontinuous casting
164443, 164465, B22D 1100
Patent
active
044718306
ABSTRACT:
In the art of continuous vertical casting, an improved cooler assembly surrounds the forming die through which molten metal is poured for forming elongated metallic bar products which may be solid or hollow. The cooler assembly includes a cooling sleeve surrounding the die in continuous intimate contact; and a jacket surrounding the cooling sleeve and spaced therefrom to provide space for receiving a coolant. Along a substantial intermediate length of the cooling sleeve is formed a continuous helical or spiral groove for controlling the flow of coolant from the bottom to the top of the cooler assembly while increasing surface contact of the coolant with the cooling sleeve and the jacket itself. Coolant is introduced into and discharged from the cooler assembly at an oblique angle to initiate helical flow of the coolant about the sleeve and also avoid cold spots and consequently grain and strength imperfections in the bar product being cast. The upper and lower ends of the cooling sleeve in its inner regions adjacent the die are recessed to control the heating and cooling of the cooling sleeve itself to avoid warpage of the cooling sleeve which can harmfully unseat the die, to avoid rupture of the welds which fasten the cooling sleeve to the jacket, and to protect the inner edge of the cooling sleeve from damage during handling a set-up time.
REFERENCES:
patent: 2169893 (1939-08-01), Crampton et al.
patent: 4211270 (1980-07-01), Shinopoulos
Lin Kuang Y.
Mouzavires William E.
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