Extrusion die for porous aluminum alloy flat tube

Abstract

This utility model relates to the field of aluminum alloy flat tube extrusion forming dies, and discloses a porous aluminum alloy flat tube extrusion forming die, including die a, a heat dissipation assembly at the lower part of die a, a die b at the lower part of die a, and a die c at the lower part of die b; the heat dissipation assembly includes an outer cylinder fixedly connected to the lower part of die a, die b fitting against the inner side of the outer cylinder, and a pipe fixedly connected to the inner wall of die b. In this utility model, the heat dissipation assembly forms an efficient heat dissipation channel through the outer cylinder, the input pipe, the output pipe, and the inclined heat-conducting fins. The inclined design of the heat-conducting fins increases the contact area with die b, optimizes the heat conduction path, and allows the heat generated by the die during extrusion to be quickly carried away by the cooling medium in the input pipe, reducing local high temperature of the die, mitigating thermal fatigue wear, and reducing the cost and downtime of frequent die replacements.

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