Kneading disc, screw element and extruder
AssigneeThe Japan Steel Works, Ltd.
InventorsTakahide TAKEUCHI, Motoi NAKAMURA
Life of this patent
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Abstract
Mixing performance of resin material in the rotational direction of the screw is enhanced. Kneading disc 7 is fitted onto rotatable shaft 3 and is arranged in cylinder 2. Outer circumferential surface 8 of kneading disc 7 of the present invention that faces cylinder 2 has band portion 9 that extends between both ends 7a, 7b of kneading disc 7 in axial direction X of shaft 3 and that forms a minimum gap with cylinder 2. Band portion 9 includes at least one bent part 10.
Claims10
A kneading disc that is fitted onto a rotatable shaft and that is arranged in a cylinder, the kneading disc comprising an outer circumferential surface that faces the cylinder, and the outer circumferential surface has a band portion that extends between both ends of the kneading disc with regard to an axial direction of the shaft and that forms a minimum gap with the cylinder, wherein the band portion includes at least one bent part.
Dependencies are inferred from the claim text.