METHOD FOR THE FABRICATION OF MULTIPOLE MAGNETS

摘要

A method for the fabrication of multipole magnets, which method comprises the steps of (i) screen or stencil printing an ink comprising a mixture of particles of a magnet material and a carrier material onto a backing sheet in a predetermined pattern; (ii) curing or drying the patterned sheet and magnetising the areas forming the predetermined pattern in step (i) using a magnetic field perpendicular to the plane of the backing sheet to produce North poles on one side of the sheet and South poles on the other side of the sheet; (iii) screen or stencil printing an ink comprising a mixture of a magnet material and a carrier material onto a backing sheet in a pattern which is complementary to the pattern in step (i), the ink being printed in those areas where no ink was printed in step (i); (iv) curing or drying the patterned sheet and magnetising the areas forming the complementary pattern in step (iii) using a magnetic field perpendicular to the plane of the backing sheet to produce North poles on one side of the sheet and South poles on the other side of the sheet; (v) turning over the sheet from step (iv); and (vi) bringing the sheet from step (ii) and the reversed sheet from step (v) together form a laminate, thereby forming a multiple magnet.