Molten iron flow rate control device for large castings

Abstract

The utility model discloses a kind of iron liquid flow rate control devices for large castings, including lower mould;The inside of the lower mould is equipped with mould groove, the upper portion of the mould groove is equipped with upper mould, the top of the upper mould is equipped with liquid guide mechanism, the inside of the liquid guide mechanism is equipped with flow rate adjusting mechanism;The utility model cooperates with use by lower mould, mould groove and upper mould, the mould groove 101 in lower mould 1 is reduced by designing multilevel resistance element, the flow velocity in high trapezoidal cross gate of large sectional area's inner gate and changes flow direction, let iron liquid change from turbulent flow state into laminar flow, utilize the characteristics of high cross gate and quickly gather slag, simultaneously, the sectional area sum of inner gate connected with casting is greater than the sectional area sum of straight gate, to reduce the iron liquid speed of entering casting, avoid splashing, scour and oxidation, ensure casting quality, and then be beneficial to the forming of casting later period.

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