Abstract: A column base structure formed by integrally joining a column base metal fitting having a raised portion and a base plate to a steel-frame column, and joining the column base metal fitting joined to the steel-frame column to a concrete foundation via anchor bolts embedded in the concrete foundation, in which an anchor-bolt retainer having an upper anchor plate and a lower anchor plate is fixedly fitted to support members installed on a concrete subslab, anchor bolts are hold in position via the anchor-bolt retainer, and the anchor bolts are embedded, together with the anchor-bolt retainer, into the concrete foundation.

Abstract: A swing-type actuator comprising (a) a housing comprising two yokes and permanent magnets attached to the yokes with their different magnetic poles opposing each other, a magnetic gap existing between the opposing permanent magnets; and (b) a swingable arm having one end to which a movable coil is fixed and the other end to which a function member is fixed, such that the movable coil is swingable in the magnetic gap, the movable coil being integrally fixed to the arm by a hold member made of a thermoplastic resin having a modulus of 10.sup.5 kg/cm.sup.2 or more.

Abstract: Spheroidal graphite cast iron containing 0.016-0.030 weight % of S, in which the number of spheroidal graphite particles having a diameter of 2 .mu.m or more is such that it is 1700/mm.sup.2 or more when an as-cast iron portion measured has a thickness of 3 mm. This cast iron is produced by:(a) preparing an Fe alloy melt consisting essentially of, by weight, 3.0-4.0% of C, 1.8-5.0% of Si, 1.0% or less of Mn, 0.20% or less of P, 0.005-0.015% of S and balance Fe and inevitable impurities;(b) adding 0.020-0.050% of a lanthanide rare earth metal to the Fe alloy melt before or simultaneously with adding a spheroidizing agent;(c) subjecting the melt to a spheroidizing treatment by using the spheroidizing agent; and(d) adding a sulfur-containing material to the melt so that the amount of S is adjusted to 0.016-0.030 weight %, and that the amount of the lanthanide rare earth metal is adjusted to 0.010-0.040 weight %.

Abstract: A diffusion-bonded assembly of AlN ceramic bodies, at least one of the AlN ceramic bodies having a boundary phase content of 1000 ppm or more. A heat dissipation member constituted by diffusion-bonded AlN ceramic bodies, at least one of the AlN ceramic bodies having a boundary phase content of 1000 ppm or more.

Abstract: A the magnetically anisotropic magnetic powder having an average particle size of 1-1000 .mu.m and made from a magnetically anisotropic R-TM-B-Ga or R-TM-B-Ga-M alloy having an average crystal grain size of 0.01-0.5 .mu.m, wherein R represents one or more rare earth elements including Y, TM represents Fe which may be partially substituted by Co, B boron, Ga gallium, and M one or more elements selected from the group consisting of Nb, W, V, Ta, Mo, Si, Al, Zr, Hf, P, C and Zn. This is useful for anisotropic resin-bonded magnet with high magnetic properties.

Abstract: The magnet article for attracting foreign matters in the stomach is constituted by (a) a hollow cylindrical case made of a corrosion-resistant, non-magnetic material: (b) a plurality of disc-shaped yokes made of a soft magnetic material; (c) a plurality of disc-shaped magnet members made of an R-Fe-B permanent magnet material and having magnetic poles on both end surfaces, the disc-shaped magnet members being arranged alternately with the disc-shaped yokes in the hollow cylindrical case such that the magnetic poles having the same polarity of the adjacent disc-shaped magnet members face each other via each disc-shaped yoke; and (d) a pair of end covers made of a corrosion-resistant, non-magnetic material, each end cover being fixed to each end of the hollow cylindrical case so that the inside of the hollow cylindrical case is sealed.

Abstract: A wear-resistant compound roll comprising an outer layer made of an iron-base alloy containing such components as to precipitate at least one of carbides of W, V, Nb, Ti, Ta, Zr and Hf from an alloy melt in a solidification process thereof, and a steel shaft metallurgically bonded to the outer layer, the outer layer having a surface with a Shore hardness of 70 or more, and the shaft having a tensile strength of 55 kg/mm.sup.2 or more and an elongation of 1.0% or more, and a boundary layer between the outer layer and the shaft being not weaker than weaker one of the outer layer and the shaft.The iron-base alloy has a composition by weight % consisting essentially of 1.5-3.5% C, 0.3-3.0% Si, 0.3-1.5% Mn, 2-7% Cr, 9% or less Mo, 20% or less W, 3-15% V and balance substantially Fe.