Process for manufacturing screens for centrifugals, particularly

Details Process for manufacturing screens for centrifugals, particularly Process for manufacturing screens for centrifugals, particularly

1979-06-25

1982-07-27

Tufariello, T.

Chemistry: electrical and wave energy

Processes and products

204 24, C25D 108

Patent

active

043416039

ABSTRACT:
Working screens for centrifugals, especially sugar centrifugals are made by electrodeposition of screen material on an electrically conducting matrix without filling the screen slots. Support material is then deposited on the screen material even to the extent that the screen slots are filled by the support material which is not resistant to an etchant whereas the screen material is resistant to such etchant. Thereafter the screen slots are opened by an etching step. In a modification three separate deposition steps are performed to form screen slots which open rearwardly so that the slot surface is larger on the rear of the screen than on the front of the screen.

REFERENCES:
patent: 2225734 (1940-12-01), Beebe
patent: 2226381 (1940-12-01), Norris
patent: 2226383 (1940-12-01), Norris
patent: 2469689 (1949-05-01), Gresham
patent: 2762149 (1956-09-01), Mears
patent: 3192136 (1965-06-01), Reid

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