ROTARY ALTERNATING FIELD GENERATOR FOR TRANSFER OF MAGNETIC POWDER

摘要

PURPOSE:To raise the efficiency of transfer of CRUD (Canadian React or Unkown Deposit) by the variation of magnetic field by using a structure in which plural slots having a specific slant angle against the axis are formed on the periphery of a magnetic cylinder and plural coils are provided in the slots. CONSTITUTION:In the rotary alternating field generator 9, plural slots having a slant angle of 20-60 deg. against the axis of the cylinder 1 are formed on the periphery of the magnetic cylinder 1, and plural coils 3 to which an insulating treatment is applied are provided in the slots 2 in the manner 3a-3f. Thus, CRUD (Canadian React or Unknown Deposit) 12 can move toward the direction F of almost right angle to the coils 3. In addition, since the AC source 13 is continuously applied, the CLUD12 is transferred and dropped onto the center of the surface by means of a continuous spiral shifting force practically and thus the does of radiation in the working space can be greatly reduced.