STRUCTURE OF MOLD FOR CASTING LONG CASTS AND MANUFACTURING METHOD FOR THE SAME

PROBLEM TO BE SOLVED: To provide a structure of a mold for casting a plurality of long casts and a manufacturing method for the same capable of improving productivity while preventing occurrence of variation in quality.SOLUTION: A structure of a mold for casting long casts comprises a plurality of molds 11 provided with vertical runners 15 in mating surfaces 13 of a pair of vertically positioned split dies 12 are integrated with the split dies 12 arranged back-to-back to position respective mating surfaces 13 in parallel. Horizontal runners 19 communicating lower parts of both vertical runners of a plurality of molds 11 with each other are formed. A sprue cap 18 is provided at the top edge of one of vertical runners 15 in the plurality of molds 11. The lower a position in each of the vertical runners 15 in the plurality of molds 11 is, the smaller a passage cross sectional area is.SELECTED DRAWING: Figure 2 【課題】長尺鋳造品を複数個取りするにあたり、生産性を向上しつつ、品質にバラツキを生ずることを防止する。【解決手段】一対の割型１２の合わせ面１３を縦にして縦湯道１５を設けた複数の鋳型１１が、各々合わせ面１３が平行になるように互いの割型１２を背中合わせにして合体されている。複数の鋳型１１の縦湯道の下端部同士を連通する横湯道１９が形成されている。複数の鋳型１１のうちのいずれかの縦湯道１５の上端に湯口カップ１８が設けられている。複数の鋳型１１各々の縦湯道１５は下方へいくほど通路断面積が小さくなっている。【選択図】図２