Abstract: Provided are a method of producing a protein food material, the method including: kneading a protein-containing mixture containing a vegetable protein and water by pressurizing and heating the protein-containing mixture in an extrusion section of a twin screw extruder; and after kneading, extruding the kneaded protein-containing mixture while swelling the kneaded protein-containing mixture inside a discharge die mounted at a downstream end of the extrusion section in an extrusion direction, a protein food material, and a molded meat alternative.

Abstract: A rotor 1 can prevent from cracking a magnet when molding the rotor and a molding die for the rotor can prevent from reducing yield of rotors. The rotor 1 formed into disk shape includes a rotor body 12 and an annular shape magnet 13. The rotor body 12 has inner and outer cover portions 18, 19 for covering respectively inner and outer surfaces 13a, 13b of the magnet 13, and first and second end cover portions 20, 21 for covering respectively one end face 13c and the other end face 13d of the magnet 13. The rotor 1 is formed by injection molding with the molding die, whose a cavity receives the magnet 13.

Abstract: A rotor 1 can prevent from cracking a magnet when molding the rotor and a molding die for the rotor can prevent from reducing yield of rotors. The rotor 1 formed into disk shape includes a rotor body 12 and an annular shape magnet 13. The rotor body 12 has inner and outer cover portions 18, 19 for covering respectively inner and outer surfaces 13a, 13b of the magnet 13, and first and second end cover portions 20, 21 for covering respectively one end face 13c and the other end face 13d of the magnet 13. The rotor 1 is formed by injection molding with the molding die, whose a cavity receives the magnet 13.