Abstract: A layered product prepared by applying a surface treatment to an adherend having a surface with a low binding property with an anaerobic adhesive, which does not require a complex work, primer application, effected by accelerating an adhesive curing rate, and does not change surface conditions of the adherend. The layered product comprises an adherend, an uneven deposition comprising Cu, V, a Cu alloy or a V alloy and having a height of 500 nm or less on the surface of the adherend, and an adhesive layer formed at least on the uneven deposition.

Abstract: A layered product prepared by applying a surface treatment to an adherend having a surface with a low binding property with an anaerobic adhesive, which does not require a complex work, primer application, effected by accelerating an adhesive curing rate, and does not change surface conditions of the adherend. The layered product comprises an adherend, an uneven deposition comprising Cu, V, a Cu alloy or a V alloy and having a height of 500 nm or less on the surface of the adherend, and an adhesive layer formed at least on the uneven deposition.

Abstract: A deburring method of removing burrs present on the surface of a yoke component, made from a low steel carbon steel, of a voice coil motor for a hard disk drive, includes a first step of subjecting the yoke component to a barrel polishing treatment; and a second step of subjecting the yoke component to at least one of an abrasive grain fluidization treatment, a thermal deburring treatment, a magnetic polishing treatment, an ultrasonic deburring treatment, and a water jet deburring treatment.

Abstract: A deburring method of removing burrs present on the surface of a yoke component, made from a low steel carbon steel, of a voice coil motor for a hard disk drive, includes a first step of subjecting the yoke component to a barrel polishing treatment; and a second step of subjecting the yoke component to at least one of an abrasive grain fluidization treatment, a thermal deburring treatment, a magnetic polishing treatment, an ultrasonic deburring treatment, and a water jet deburring treatment.

Abstract: A deburring method of removing burrs present on the surface of a yoke component, made from a low steel carbon steel, of a voice coil motor for a hard disk drive, includes a first step of subjecting the yoke component to a barrel polishing treatment; and a second step of subjecting the yoke component to at least one of an abrasive grain fluidization treatment, a thermal deburring treatment, a magnetic polishing treatment, an ultrasonic deburring treatment, and a water jet deburring treatment.

Abstract: A rare earth permanent magnet of the formulaR(Fe.sub.1-x-y Co.sub.x M.sub.y).sub.z,in which R is rare earth element(s) and/or Y, M is Si, Ti, Mo, B, W, V, Cr, Mn, Al, Nb, Ni, Sn, Ta, Zr, and/or Hf, and x, y, z are numbers such that0.ltoreq.x.ltoreq.0.99,0.01.ltoreq.y.ltoreq.0.03, and8.5<z<12.0,and in which the matrix cells consist of two finely segregated phases.