Provided are a sliding member for pumps in which generation of a wear substance is quickly and accurately grasped even if the wear substance is generated when the sliding member slides while being in contact with another member, and a pump operation state detection system using the sliding member. The pump operation state detection system includes a uniaxial eccentric screw pump, a detection device capable of detecting metal powder in a fluid discharged from the uniaxial eccentric screw pump, and a determination device. In the uniaxial eccentric screw pump, a stator is arranged so as to be exposed to a fluid conveyance path through which the fluid flows. The stator is configured to slide while being in contact with a rotor along with operation of the uniaxial eccentric screw pump. The stator is made of a resin or a rubber and contains 10-30% of metal powder by weight ratio.
F01C 1/10 - "Machines" ou machines motrices à piston rotatif d'un type à engrènement extérieur, c.-à-d. avec engrènement des organes coopérants semblable à celui d'engrenages dentés d'un type à axe interne dans lequel l'organe externe a plus de dents ou de parties équivalentes de prise, p. ex. de galets, que l'organe interne
F04C 2/107 - Machines ou pompes à piston rotatif du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés du type à axe interne, l'organe externe ayant plus de dents ou de parties équivalentes de prise, p. ex. de rouleaux, que l'organe interne avec des dents hélicoïdales
[Problem] To provide a sliding member for a pump with which the incidence of wear products can be quickly and accurately ascertained even if wear products were produced as the sliding member slides while being in contact with another member, and a pump operation state detection system for a pump that utilizes the sliding member for the pump. [Solution] A pump operation state detection system (10) is equipped with: a uniaxial eccentric screw pump (20); a detection device (100) that is capable of detecting metal powders in a fluid discharged from the uniaxial eccentric screw pump (20); and a determination device (120). The uniaxial eccentric screw pump (20) has therein a stator that is disposed so as to be exposed to a fluid conveyance path (56) through which the fluid flows. The stator is to slide while being in contact with a rotor with operation of the uniaxial eccentric screw pump (20). The stator is made of a resin or rubber and contains 10-30% of metal powders in terms of weight ratio.
F04C 15/00 - Parties constitutives, détails ou accessoires des "machines", des pompes ou installations de pompage non couverts par les groupes
F04C 2/107 - Machines ou pompes à piston rotatif du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés du type à axe interne, l'organe externe ayant plus de dents ou de parties équivalentes de prise, p. ex. de rouleaux, que l'organe interne avec des dents hélicoïdales
F04C 13/00 - Adaptations des "machines" ou pompes pour utilisation particulière, p. ex. pour très hautes compressions
Provided is a method for molding an amorphous alloy, the method having a high degree of processing freedom regardless of the components of the amorphous alloy, which especially is a metallic glass, and of the shape of the article to be molded, etc. and being capable of producing a molded article having a reduced content of pores. Also provided is a molded object produced using the molding method. This method for molding an amorphous alloy comprises a melting step in which the amorphous alloy is melted, a differential-pressure casting step in which the melt of the amorphous alloy is poured into a casting mold located below the melt and the casting mold is evacuated, and a processing step in which the melt inside the casting mold is heated and pressurized and is processed while thereby keeping the melt in a supercooled state.
B22D 21/00 - Coulée de métaux non ferreux ou de composés métalliques, dans la mesure où leurs propriétés métallurgiques affectent le procédé de couléeUtilisation de compositions appropriées
B22D 23/00 - Procédés de coulée non prévus dans les groupes
B22D 27/04 - Action sur la température du métal, p. ex. par chauffage ou refroidissement du moule
B22D 27/09 - Traitement du métal dans le moule pendant qu'il est liquide ou plastique en appliquant une pression
brevets
