Abstract: Microwave irradiator 12 is attached to a furnace main body of a heating furnace 11 having microwave permeability. A running passage for passing a fiber member F which is the object to be heated is formed inside the heating furnace 11. A first tubular member 13 made of a first microwave heat-generating material absorbing microwave energy and generating heat is rotatably disposed around the running passage. A second tubular member made of a second microwave heat-generating material absorbing microwave energy and generating heat is disposed in the first tubular member 13. The fiber member F is heated and calcined while running the fiber member F containing carbon in the running passage of the second tubular member 14.

Abstract: Microwave irradiator 12 is attached to a furnace main body of a heating furnace 11 having microwave permeability. A running passage for passing a fiber member F which is the object to be heated is formed inside the heating furnace 11. A first tubular member 13 made of a first microwave heat-generating material absorbing microwave energy and generating heat is rotatably disposed around the running passage. A second tubular member made of a second microwave heat-generating material absorbing microwave energy and generating heat is disposed in the first tubular member 13. The fiber member F is heated and calcined while running the fiber member F containing carbon in the running passage of the second tubular member 14.

Abstract: A fiber spreading apparatus prevents a fiber bundle from being split apart. Position restriction rollers 43g and 43h are arranged in a fiber bundle streaming and feeding section 43 so as to restrict a streaming and feeding position of the fiber bundle 1. A spread width of the fiber bundle 1 is thereby restricted and the fiber bundle is prevented from being split apart. A squeezing roller mechanism 52, which is arranged outside of a liquid stored in a fiber spreading tank 40, guides the fiber bundle 1 from within the liquid in the fiber spreading tank 40 to the squeezing roller mechanism 52 while bringing the fiber bundle into constant contact with a first guide 51. By so configuring, a surface tension of the liquid acts to prevent the fiber bundle 1 from being split apart.

Abstract: A fiber spreading apparatus prevents a fiber bundle from being split apart. Position restriction rollers 43g and 43h are arranged in a fiber bundle streaming and feeding section 43 so as to restrict a streaming and feeding position of the fiber bundle 1. A spread width of the fiber bundle 1 is thereby restricted and the fiber bundle is prevented from being split apart. A squeezing roller mechanism 52, which is arranged outside of a liquid stored in a fiber spreading tank 40, guides the fiber bundle 1 from within the liquid in the fiber spreading tank 40 to the squeezing roller mechanism 52 while bringing the fiber bundle into constant contact with a first guide 51. By so configuring, a surface tension of the liquid acts to prevent the fiber bundle 1 from being split apart.

Abstract: A method of manufacturing a material for a magnesium alloy member, characterized in that the method comprises the steps of: heating a solid-liquid coexistent magnesium alloy up to a temperature in the range of from the solidus temperature or more to the liquidus temperature thereof or less; homogeneously dispersing carbon fibers into the solid-liquid coexistent magnesium alloy, wherein the carbon fibers have been cut into arbitrary lengths or powdered and have not been subjected to surface treatment; and then cooling the magnesium alloy.