Plastic and nonmetallic article shaping or treating: processes – Removal of liquid component or carrier through porous mold...
Patent
1977-05-27
1982-10-19
Parrish, John A.
Plastic and nonmetallic article shaping or treating: processes
Removal of liquid component or carrier through porous mold...
264108, 264DIG58, C04B 3526
Patent
active
043549934
ABSTRACT:
A method of manufacturing a sintered permanent magnetizable body essentially consisting of a ferrite of the formula MeO.6Fe.sub.2 O.sub.3, wherein Me is at least one of the metals barium, strontium and lead by adding an acid to a suspension of the powdered ferrite in a liquid which suspension is then supplied to one or more matrices of a press to form a compressed product which is then sintered. As a result of the treatment with acid, the compression time is reduced.
REFERENCES:
patent: 2652360 (1953-09-01), Bond
patent: 3371044 (1968-02-01), Cachardt
patent: 3903228 (1975-09-01), Riedle et al.
Kools Franciscus X. N. M.
Strijbos Sytse
Parrish John A.
Schechter Marc D.
U.S. Philips Corporation
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