Workpiece having wear-resistant inserts locked in recesses in th

Details Workpiece having wear-resistant inserts locked in recesses in th Workpiece having wear-resistant inserts locked in recesses in th

1984-08-10

1985-10-01

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

With apparatus assembly or dismantling means or with idle part

For extrusion or injection type shaping means

425461, B29C 100

Patent

active

045443416

ABSTRACT:
A wear-protected workpiece of metal, particularly a perforated granulation plate for plastic extruders, comprising shaped members of wear-resistant material inserted in recesses in the work surface of the workpiece, the spaces between the walls of the recesses and the shaped pieces being filled with a binder. In order to minimize the expenses of manufacture and repair of the wear-protected workpiece and make it possible to use non-metallic wear-resistant material for the insert member, the recesses and the shaped members have walls which widen at least in two opposed regions, the largest dimension of the widened wall of the shaped member being equal to or smaller than the dimension of the opening of the corresponding recess so that the insert member is freely inserted into the recess and forms a space therewith in which a binder can be filled to form a locking means for the insert member in the workpiece.

REFERENCES:
patent: 3271822 (1966-09-01), Rhino
patent: 3883109 (1975-05-01), Hahne
patent: 4050865 (1977-09-01), Drostholm et al.
patent: 4384703 (1983-05-01), Boskovic

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