Abstract: There is proposed a method for preliminary treatment of molten iron wherein heat source for dissolving scrap is ensured sufficiently to improve iron yield while decreasing phosphorus concentration efficiently by suppressing the amount of flux solvent used in the process of desiliconization, dephosphorization and decarburization. In the method for preliminary treatment of molten iron by conducting desiliconization and dephosphorization of molten iron with a converter type container, molten iron is first charged into the converter type container to conduct desiliconization and then intermediate slag removal is conducted, and subsequently a lime-based flux solvent is added to the container while blowing oxygen to conduct dephosphorization of the molten iron, and thereafter newly untreated molten iron is charged into the container to conduct desiliconization, and subsequently the above treatments are repeatedly conducted with the same container.

Abstract: A method of producing molten steel supplies gaseous oxygen from a top blowing lance into a converter to perform decarburization refining of molten iron while adding a CaO-containing powdery dephosphorizing agent to simultaneously decarburize and dephosphorize the molten iron and includes supplying the dephosphorizing agent to a bath surface of the molten iron together with at least one gas jet from the top blowing lance and a dynamic pressure determined when a gas jet blown from respective lance nozzles of the top blowing lance impinges onto the bath surface of the molten iron is controlled to not more than 0.50 kgf/cm2.

Abstract: In a molten iron refining method by charging molten iron and a cold iron source into a converter type refining vessel, supplying a material containing CaO with an oxygen source dissolving the cold iron source and conducting molten iron desiliconization, removing at least a part of the produced slag as an intermediate slag removal, and supplying a slag-forming agent and an oxygen source to the molten iron for dephosphorization, a silicon-containing material or a combination of it and carbonaceous material is added in the desiliconization then carried out under conditions such that the slag basicity (mass % CaO/mass % SiO2) in the desiliconization completion is more than 0.5 but less than 1.5 and a molten iron temperature in the desiliconization completion is more than 1280° C. but less than 1350° C. and more than 30 mass % of the slag produced in the desiliconization is removed from the vessel in the intermediate slag removal.

Abstract: There is proposed a method for preliminary treatment of molten iron wherein heat source for dissolving scrap is ensured sufficiently to improve iron yield while decreasing phosphorus concentration efficiently by suppressing the amount of flux solvent used in the process of desiliconization, dephosphorization and decarburization. In the method for preliminary treatment of molten iron by conducting desiliconization and dephosphorization of molten iron with a converter type container, molten iron is first charged into the converter type container to conduct desiliconization and then intermediate slag removal is conducted, and subsequently a lime-based flux solvent is added to the container while blowing oxygen to conduct dephosphorization of the molten iron, and thereafter newly untreated molten iron is charged into the container to conduct desiliconization, and subsequently the above treatments are repeatedly conducted with the same container.

Abstract: A method of producing molten steel supplies gaseous oxygen from a top blowing lance into a converter to perform decarburization refining of molten iron while adding a CaO-containing powdery dephosphorizing agent to simultaneously decarburize and dephosphorize the molten iron and includes supplying the dephosphorizing agent to a bath surface of the molten iron together with at least one gas jet from the top blowing lance and a dynamic pressure determined when a gas jet blown from respective lance nozzles of the top blowing lance impinges onto the bath surface of the molten iron is controlled to not more than 0.50 kgf/cm2.

Abstract: In a molten iron refining method by charging molten iron and a cold iron source into a converter type refining vessel, supplying a material containing CaO with an oxygen source dissolving the cold iron source and conducting molten iron desiliconization, removing at least a part of the produced slag as an intermediate slag removal, and supplying a slag-forming agent and an oxygen source to the molten iron for dephosphorization, a silicon-containing material or a combination of it and carbonaceous material is added in the desiliconization then carried out under conditions such that the slag basicity (mass % CaO/mass % SiO2) in the desiliconization completion is more than 0.5 but less than 1.5 and a molten iron temperature in the desiliconization completion is more than 1280° C. but less than 1350° C. and more than 30 mass % of the slag produced in the desiliconization is removed from the vessel in the intermediate slag removal.

Abstract: An automatic icemaker according to the present invention is capable of being installed in a freezing compartment and automatically making and discharging ice cubes, the automatic ice-making comprising at least one ice-making tray having a plurality of small ice-making compartments, partitions disposed between respective adjacent small ice-making compartments, and groove-shaped water-passage channels formed in portions of the partitions which are offset from centers of the partitions, and a rotating device for rotating the ice-making tray, wherein water is supplied after the ice-making tray is inclined at a water supply angle less than a water filling angle in such a direction that the water passage channels face downward.

Abstract: Disclosed is an automatic icemaker has a rotatably supported ice making portion having first and second ice making trays arranged in a back-to-back manner, a motor for rotating the ice making portion, a first and a second temperature detecting sensors for detecting the temperature of the first and second ice making tray or the temperature of ice within a compartment of the first and second ice making tray, and a signal processor for controlling the motor to turn over the ice making portion after the temperature of the first or second ice making tray, or the temperature of ice within a compartment of the first or second ice making tray, looking upward, detected by the first temperature detecting sensor or the second temperature detecting sensor has become stabilized in the vicinity of 0° C.

Abstract: An automatic icemaker according to the invention can be disposed in one part of a freezer and automatically make ice pieces, and is provided with temperature distribution forming means which forms a temperature distribution in which freezing progresses from the open side of ice partitions of an ice-tray and is completed near the bottom side of the ice partitions.

Abstract: An automatic icemaker according to the present invention is capable of being installed in a freezing compartment and automatically making and discharging ice cubes, the automatic ice-making comprising at least one ice-making tray having a plurality of small ice-making compartments, partitions disposed between respective adjacent small ice-making compartments, and groove-shaped water-passage channels formed in portions of the partitions which are offset from centers of the partitions, and a rotating device for rotating the ice-making tray, wherein water is supplied after the ice-making tray is inclined at a water supply angle less than a water filling angle in such a direction that the water passage channels face downward.

Abstract: Disclosed is an automatic icemaker has a rotatably supported ice making portion having first and second ice making trays arranged in a back-to-back manner, a motor for rotating the ice making portion, a first and a second temperature detecting sensors for detecting the temperature of the first and second ice making tray or the temperature of ice within a compartment of the first and second ice making tray, and a signal processor for controlling the motor to turn over the ice making portion after the temperature of the first or second ice making tray, or the temperature of ice within a compartment of the first or second ice making tray, looking upward, detected by the first temperature detecting sensor or the second temperature detecting sensor has become stabilized in the vicinity of 0° C.

Abstract: An automatic icemaker according to the invention can be disposed in one part of a freezer and automatically make ice pieces, and is provided with temperature distribution forming means which forms a temperature distribution in which freezing progresses from the open side of ice partitions of an ice-tray and is completed near the bottom side of the ice partitions.

Abstract: A wasteless type lamination system comprises a first transfer device for transferring along a first transfer path a continuous laminate film; a cutter for cutting the continuous laminate film in a predetermined length, provided beside the first transfer path at the downstream of the first transfer device; a second transfer device for transferring along the first transfer path a cut laminate film; a film detection sensor for detecting a leading edge of the continuous laminate film, provided beside the first transfer path at the downstream of the cutter; a card transfer device for transferring a card along a second transfer path; and a thermocompression bonding device for laminating the cut laminate film to the card. The continuous laminate film is moved backward from the cutter by a predetermined distance by the first transfer device before or after cutting action of the cutter.

Abstract: An extrusion-type liquid delivery apparatus according to the present invention comprises: a plunger mover to move a plunger; a plunger mover driver to move the plunger mover; a pair of hooks rotatably mounted on the plunger mover with the bent ends projecting from the plunger mover, and having slopes at the bent ends; a spring to close the bent ends of the pair of hooks by spring force; and a clamp to block a liquid delivery channel connected to a container.

Abstract: In a double-side lamination system having a thermocompression bonding device for laminating laminate films on both surfaces of a card by applying heat and pressure using a pair of heat rollers, a temperature measurement device for measuring temperatures of the heat rollers are provided, and whether the lamination system is in a double-side lamination mode in which laminations are carried out on both surfaces of the card, or in a single-side lamination mode in which lamination is carried out on one of the surfaces of the card, is automatically distinguished by comparing measured temperatures of the heat rollers at a predetermined time after turn-on of the power of the system with a predetermined reference temperature.

Abstract: In a lamination system for laminating a film with a heat adhesive layer on at least a surface of a plastic card applying heat and pressure by heat rollers, each of two rectification devices for rectifying warp in the laminated card is provided independently of each other, at the downstream of the heat rollers, respectively along each of sides of the card along card transfer direction. Each of the rectification devices comprises a pair of rotatable rollers.

Abstract: A movable-body linear drive assembly comprises: a drive source; a drive pulley connected to the drive source; an idler pulley which is disposed such that the idler pulley is spaced from the drive pulley by a distance; a belt which is wound around the drive pulley and the idler pulley, and which has a detection part; a movable body mounted on the belt; and at least one detector which detects the detection part of the belt.

Abstract: A lamination system comprises; a film transfer means for transferring along a film transfer path a laminate film in which small windows are provided, a film detection sensor for detecting the laminate film, a cutting means for cutting the laminate film into a predetermined length. The film transfer means further transfers the cut laminate film along the film transfer path, the lamination system further comprises a card transfer means for transferring a card on the surface of which a terminal of an IC tip is provided along a card transfer path, a positioning mean for making the terminal and the small window into a predetermined positional relation, a thermocompression bonding means for laminating laminate film with the card.

Abstract: A lamination system comprises; a film transfer means for transferring along a first transfer path a continuous film chosen from more than two kinds of films different in width, a cutting means provided along the first transfer path for cutting the film in a predetermined length, a card transfer means for transferring an ID card along a second transfer path that converges with the first transfer path at a predetermined point of conversion, a thermocompression bonding means for laminating the film cut on a surface of the ID card at the downstream of the point of conversion. The lamination system is provided with guide members for restricting the transverse movement of the film within a distance corresponding to the maximum width of the films, and alignment means for aligning the film along a desired side end of the first transfer path.

Abstract: In the double-side lamination system comprising a thermocompression bonding means for laminating laminate films on both surfaces of a card applying heat and pressure using a pair of heat rollers, temperature measurement means for measuring temperatures of the heat rollers are provided, and whether the lamination system is in a double-side lamination mode in which laminations are carried out on both surfaces of the card, or in a single-side lamination mode in which lamination is carried out on one of the surfaces of the card, is automatically distinguished by comparing measured temperatures of the heat rollers at a predetermined time after turn-on of the power of the system with a predetermined reference temperature.