Mold apparatus for continuously producing laminated resinoid mat

Details Mold apparatus for continuously producing laminated resinoid mat Mold apparatus for continuously producing laminated resinoid mat

1975-04-23

1976-06-22

Spicer, Jr., Robert L.

Plastic article or earthenware shaping or treating: apparatus

Means casting fluent stock operably associated with shaping...

425447, 425DIG201, B29D 702

Patent

active

039648494

ABSTRACT:
Resinoid wheels are continuously produced by preparing resinoid abrasive compositions each different in the size of abrasive grains contained therein, placing the abrasive compositions into a die in the form of superposed layers, molding the superposed layers into a block, heating the block by a high frequency heater, passing the heated block through multiple pairs of rolls to roll the block into a sheet, blanking out circular pieces from the rolled sheet and baking the circular pieces.

REFERENCES:
patent: 812147 (1906-02-01), McConnell
patent: 824202 (1906-06-01), Peters
patent: 1891790 (1932-12-01), Wilderman
patent: 3123889 (1964-03-01), Watts et al.

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