| 摘要 |
In some preferred, embodiments, an extrusion die for a metallic material capable of obtaining a high quality extruded article can be provide while securing sufficient strength and durability. The die is provided with a male die case 20 having a pressure receiving portion 21, a female die case 25, a male die 30 provided in the male die case 20, and a female die 40 provided in the female die case 25. The pressure receiving portion 21 is formed into a convex configuration protruded rearward, and a porthole for introducing a metallic material is formed in the external periphery of the pressure receiving portion. A press-fitting connecting portion 21a is formed at the front side of the male die case 20 and a press-fitting dented portion 25a is formed at the rear side of the female die case 25. The press-fitting connecting portion 21a is fitted in the press-fitting dented portion 25a to thereby connect both the die cases 20 and 25 with the male die case 20 restrained from its periphery thereof by the female die case 25.
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