Testing method for determining the magnetic properties of...

Details Testing method for determining the magnetic properties of... Testing method for determining the magnetic properties of...

G - Physics

01

R

324/55

G01R 33/12 (2006.01) G01N 27/74 (2006.01)

Patent

CA 1184605

TESTING METHOD FOR DETERMINING THE MAGNETIC PROPERTIES OF FERROMAGNETIC POWDERS ABSTRACT OF THE DISCLOSURE The invention relates to a method permitting the magne- tic properties of ferromagnetic powders which are used for the preparation of heavy media for the float-sink dressing of minerals, to be tested. To this end, the invention pro- vides for the ferromagnetic powder to be magnetized in a magnetic steady field at a field strength within the range 600 to 1000 amperes per cm and the magnetized ferromagnetic powder to be demagnetized in a cyclicly decreasing magnetic alternating field at a field strength within the range 1000 to 1500 amperes per cm. Next, the ferromagnetic powder so pre- treated is heaped up, in the center portion of a circular plate made from dielectric material and the circular plate is placed on an iron core-provided coil. An alternating current voltage of 180 to 260 volts is applied to the coil, thereby effecting the occurrence of alternating fields of 180 to 220 amperes per cm in the center portion of the cir- cular plate. The ferromagnetic powder heaped up is observed for the figure it is forming under the influence of the al- ternating fields. The formation of a closed figure around the center portion of the plate indicates unlimited quali- fication of the ferromagnetic powder for use in a heavy medium suspension.

370710

Affiliated with

Also associated with

Rating

Testing method for determining the magnetic properties of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Testing method for determining the magnetic properties of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Testing method for determining the magnetic properties of... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1332050