Ingot mold for forging rolling composite is a kind of ingot mold with. high efficiency

low cost and wide application. Based on the experience of ingot production at factory and the design principle of ingot mold

the parameters such as ingot taper

aspect ratio

cap volume ratio and ingot mold thickness are designed

and a 5. 5 ~7 t ingot mold for forging and rolling composite is developed. The production practice shows that the ingot mold with design parameters of 3. 8% ta¬per

2. 0 ~ 2. 5 height-width ratio ( adjustable cap opening)

12. 5% cap-volume ratio

upper thin and lower thick wall thickness (upper 150 mm

lower 175 mm) has obvious effect on improving ingot quality and the forging yield increases from original 83. 0% to 85. 0%.