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    • 1. 发明专利
    • MOLTEN MATERIAL EXTRUDING DEVICE
    • JPH04278325A
    • 1992-10-02
    • JP4024591
    • 1991-03-06
    • KOBE STEEL LTD
    • FUKUNAGA SHINICHIKONNO MASASHIIKEDA OSAMUYAMAZAKI NOBUHIRO
    • B29B9/06B29C47/68B29C48/30
    • PURPOSE:To make possible the change of production of products, even the extrusion diameter, swell ratio and the like of which are different from each other, without exchanging a die plate and the remarkable improvement of production efficiency possible by a method wherein die hole groups to use can be selected by changing through hole groups through the selection of breaker plates. CONSTITUTION:Under the condition that a plurality of breaker plates 6A and 6B respectively having through hole groups 6a and 6b, through which molten material sent from an extruding part 2, are made to be selectively usable, a plurality of the breaker plates 6A and 6B provide the respective through hole groups 6a and 6b at different positions from each other so as to form a plurality of passages 8A and 8B, which respectively communicate with the respective through hole groups 6A and 6B partitioned with a partition wall 18 in a die holder 4, in order to produce a plurality of die hole groups 7A and 7B, which respectively communicate with the passages 8A and 8B and the shapes of the die holes of which are different from each other.