SIZING OF FINE PARTICLE FERROMAGNETIC MATERIALS

1,220,420. Screening magnetic materials. GENERAL ELECTRIC CO. 13 Feb., 1969 [28 Feb., 1968], No. 7875/69. Heading B2H. Ferromagnetic materials (e.g. Co 5 Sm) are ground to a powder and placed on a screen. The screen is subjected to a magnetic field of constant or reversing polarity as the powder is...

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Bibliographische Detailangaben
Hauptverfasser:	ROBERT L. FULLMAN, JOSEPH J. BECKER
Format:	Patent
Sprache:	eng
Schlagworte:	MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS PERFORMING OPERATIONS SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS TRANSPORTING
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Zusammenfassung:	1,220,420. Screening magnetic materials. GENERAL ELECTRIC CO. 13 Feb., 1969 [28 Feb., 1968], No. 7875/69. Heading B2H. Ferromagnetic materials (e.g. Co 5 Sm) are ground to a powder and placed on a screen. The screen is subjected to a magnetic field of constant or reversing polarity as the powder is agitated. This has the effect of breaking up conglomerations of cohering fine magnetic powder so that the fine powder produced passes through the screen. The particles that remain on the screen are ground again and subjected to a further screening operation.