Kneading disc for a screw extruder

Details Kneading disc for a screw extruder Kneading disc for a screw extruder

1978-10-17

1980-08-05

Jenkins, Robert W.

Agitating

Agitator

Stirrer

366 81, B29B 106

Patent

active

042159423

ABSTRACT:
In order to improve the wear-resistance of highly stressed surfaces of a kneading disc in a helical extruding machine, the exposed tips of the kneading disc are provided with inserts of an extremely wear-resistant, hard material. In a variety of embodiments, the tips of the lenticular kneading disc are provided with bores and recesses for receiving the hard inserts. Advantageously, the recesses are cylindrical wells in which cylindrical inserts are soldered or cemented. The inserts may be made from hard metals or ceramics, for example tool steel or tungsten carbide or the like.

REFERENCES:
patent: 2781563 (1957-02-01), Horth
patent: 2838794 (1958-06-01), Munger
patent: 3195868 (1965-07-01), Loomans
patent: 3375549 (1968-04-01), Geyer
patent: 3469824 (1969-09-01), Futty
patent: 3671141 (1972-06-01), Kovacs
patent: 3804382 (1974-04-01), Pultz
patent: 4036540 (1977-07-01), Seufert
patent: 4103353 (1978-07-01), Dougherty

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