Abstract: There is provided a device for monitoring an operation of a nuclear plant, including: a functional integration VDU having a regular-use-system VDU that monitors the operation of the plant under normal conditions, and a security-system VDU that leads to a safe state when the plant is in an abnormal state; and a security-system VDU that leads to a safe state when the plant is in an abnormal state. The functional integration VDU is mounted to a first operating console, the security-system VDU is mounted to a second operating console, and thereby an increase in the size of the operating consoles in the nuclear plant is suppressed, and increased ease of operation is enabled.

Abstract: In an operation monitoring apparatus of a nuclear power plant, a first operation console (12) that can be operated by an operator and includes displays (31 to 37), an operation command console (14) that can be operated by a shift supervisor and includes displays (41 to 44) , a transfer device (51) that can display an image displayed on the displays (31 to 37) of the first operation console (12) on the displays (41 to 44) of the operation command console (14), and a switching device (54) that switches an image on the displays (41 to 44) of the operation command console (14) to the image on the displays (31 to 37) of the first operation console transferred by the transfer device (51) are provided. With this configuration, it is possible to improve communications between the supervisor and the operation in operation of the nuclear power plant.

Abstract: An auxiliary feedwater valve control apparatus of a steam generator that operates an auxiliary feedwater valve in an auxiliary feed water system provided as a protective system of a main feed water system that feeds secondary cooling water to a steam generator, includes a water-level detection means that detects a water level of secondary cooling water in the steam generator, a water-level-deviation calculation means that calculates a deviation between a preset target water level and a water level detected by the water-level detection means, a valve-operation setting means that sets an aperture of the auxiliary feedwater valve corresponding to a deviation of the water level, and a valve drive means that outputs a signal for driving the auxiliary feedwater valve corresponding to setting by the valve-operation setting means.

Abstract: There is provided a device for monitoring an operation of a nuclear plant, including: a functional integration VDU having a regular-use-system VDU that monitors the operation of the plant under normal conditions, and a security-system VDU that leads to a safe state when the plant is in an abnormal state; and a security-system VDU that leads to a safe state when the plant is in an abnormal state. The functional integration VDU is mounted to a first operating console, the security-system VDU is mounted to a second operating console, and thereby an increase in the size of the operating consoles in the nuclear plant is suppressed, and increased ease of operation is enabled.

Abstract: In an operation monitoring apparatus of a nuclear power plant, a first operation console (12) that can be operated by an operator and includes displays (31 to 37), an operation command console (14) that can be operated by a shift supervisor and includes displays (41 to 44) , a transfer device (51) that can display an image displayed on the displays (31 to 37) of the first operation console (12) on the displays (41 to 44) of the operation command console (14), and a switching device (54) that switches an image on the displays (41 to 44) of the operation command console (14) to the image on the displays (31 to 37) of the first operation console transferred by the transfer device (51) are provided. With this configuration, it is possible to improve communications between the supervisor and the operation in operation of the nuclear power plant.

Abstract: A method for producing a thermoplastic resin molded article having a thermoplastic resin foam substrate and a functional member joined by welding to the foam substrate is provided. The occurrence of a dimple on the surface of the molded article is prevented by supplying a molten thermoplastic resin into a cavity for forming the functional member and then, before the occurrence of shrinkage of the resin due to the solidification of the resin, reducing force with which the foam substrate is compressed, thereby equalizing the shrinkage of the surface of the functional member.

Abstract: A method for producing a thermoplastic resin molded article having a thermoplastic resin foam substrate and a functional member joined by welding to the foam substrate is provided. In order to prevent the occurrence of dimples on the surface of the molded article at the joined portion of the functional member, the molding of the functional member is performed while a pressure-resistant sheet is placed at an extended portion of a molten resin feeding gate provided at the bottom of a cavity for forming the functional member.

Abstract: The present invention provides a thermoplastic resin-molded article comprising a thermoplastic resin functional member fused partially to a foamed sheet made of thermoplastic resin shaped in a predetermined form, as well as a process for producing the same. The thermoplastic molded article is preferably used mainly as an interior part in automobiles. According to the present invention, thermoplastic resin molded articles having less variability of the drawing strength of thermoplastic resin functional members from thermoplastic resin foamed sheets can be provided, and these used in interior parts in automobiles. Such molded articles made of thermoplastic resin can be produced efficiently according to the process of the present invention.

Abstract: The invention relates to a method for producing a molded article including a thermoplastic resin foamed substrate and a thermoplastic resin functional member which is joined to and projects from the foamed substrate. A molten thermoplastic resin is injected into a mold cavity for forming the functional member while the cavity is sealed with a thermoplastic resin foamed substrate. In the method, compressed gas is supplied into the cavity before the injection of the molten thermoplastic resin is completed.

Abstract: A film-like materials of resin manufacturing method for producing a film-like material made of a resin by rolling a thermoplastic resin material containing a thermoplastic resin using a molding apparatus comprising first rotation molding members composed of a pair of rollers, wherein the method is characterized in that the rotation molding is carried out under the conditions satisfying the following inequalities of the line contact pressure P (kN/m) applied to the thermoplastic resin, the peripheral velocity R (m/sec) of the rollers of the first rotation molding members, and the thickness H (m) of the film-like material made of the resin after rolling. (formula 1) 3×9.8?P (formula 2) 3×9.8×10?6?P/(R/H2)?2×9.8×10?5, wherein the reference character P denotes the line contact pressure P (kN/m), the reference character R denotes the peripheral velocity (m/sec) of the rotation molding members, and the reference character H denotes the thickness (m) of the film-like material made of the resin after rolling.

Abstract: Disclosed are methods for producing a thermoplastic resin article composed of a foamed thermoplastic resin sheet shaped in a predetermined shape and a functional member of thermoplastic resin which stands locally on and is fused with the foamed sheet. In the methods, a mold having a molding surface with a recess for forming a functional member therein is used in combination with a counter mold. A foamed thermoplastic resin sheet is stuck on the molding surface by suction or supply of compressed air so that the recess is sealed with the foamed sheet. Then, molten thermoplastic resin is fed into the recess. Thus, the molten thermoplastic resin is fused with the foamed sheet to form a thermoplastic resin article.

Abstract: Disclosed is a method for producing a thermoplastic resin article comprising a foamed thermoplastic resin sheet shaped in a predetermined shape and a functional member of thermoplastic resin which stands locally on and is fused with the foamed sheet. In the method, a mold having a molding surface with a recess for forming a functional member therein is used. A foamed thermoplastic resin sheet is stuck on the molding surface by suction so that the recess is sealed with the foamed sheet. Then, molten thermoplastic resin is fed into the recess. Thus, the molten thermoplastic resin is fused with the foamed sheet to form a thermoplastic resin article.

Abstract: The polyolefin [A] has a weight average molecular chain length of 2850 nm or longer and a density ?1 (g/cm3), the polyolefin wax [B] has a weight average molecular weight of 700–6000 and a density ?2 (g/cm3), the polyolefin and the polyolefin wax are incorporated at [A]/[B]=90/10–50/50 (ratio by weight), and the densities ?1 and ?2 satisfy the following conditions: 0.92??1?0.94, 0.91??2?0.93, ?0.03?(?1??2)?0.03.

Abstract: Disclosed is a thermoplastic resin foamed sheet wherein pillar-shaped resin portions observed in a cross section in the thickness direction of the sheet satisfy requirement (1): the number density of pillar-shaped resin portions intersecting the thickness centerline of the foamed sheet is from 1 to 20 pillars/mm-centerline and requirement(2): the average thickness of pillar-shaped resin portions intersecting the thickness centerline of the foamed sheet is from 10 to 500 ?m.

Abstract: Disclosed is a method for producing a thermoplastic resin foamed article using an apparatus including a pair of molds each having a molding surface through which vacuum sucking can be conducted, the method comprising a step of, while holding a foamed sheet between the molds, vacuum sucking through the molding surfaces of the molds to shape the thermoplastic resin foamed sheet, wherein the foamed sheet to be subjected to vacuum forming having a first foamed layer having an expansion ratio Xa of from 2 to 20, a thickness Ta of from 2 to 20 mm and a basis weight Ra of from 600 to 3000 g/m2 and a second foamed layer having an expansion ratio Xb of from 4 to 40, a thickness Tb of from 2 to 12 mm and a basis weight Rb of from 100 to 600 g/m2 wherein Ra/Rb is from 2 to 30.

Abstract: Disclosed are methods for producing thermoplastic resin foamed articles having a high expansion ratio and a large thickness by vacuum forming using a pair of molds through which vacuum sucking can be conducted and holding means for holding a thermoplastic resin foamed sheet at a predetermined position between the molds or a molding apparatus comprising a first mold having a molding surface through which vacuum sucking can be conducted, a second mold having a molding surface provided with sheet fixing means on at least the peripheral portion of the molding surface, and holding means for holding a thermoplastic resin foamed sheet at a predetermined position between the molds. In the methods, a heated and softened foamed sheet is supplied between the molds and vacuum sucking is started when the molds have been closed appropriately. Thus, the foamed sheet is vacuum formed to afford a molded article.

Abstract: A filter material for microfilters which is made of a micorporous film made of thermoplastic resin having micropores, the material being characterized in that the micropores are formed from a 3-dimensional network made of trunk fibrils extending in one direction of the film and branch fibrils through which the trunk fibrils are connected to one another, and the density of the branch fibrils is higher than the density of the trunk fibrils. This filter material is strength enough for practical use and also exhibits a high separation efficiency.

Abstract: To provide a slitting method of a battery separator-use resin film object that is less susceptible to occurrences of holes and tearing at the time of a slitting process. A slitting device, which is provided with a feeding roll 51 for feeding a film that is wound up to a role with its rotational velocity being controlled, a razor blade for slitting the film to a predetermined width, a sensor for detecting a tension of the film and winding rolls for winding the film up while controlling its tension, is used for carrying out a slitting process in a manner so as to satisfy the following conditions (1) and (2): (Condition 1) 5×9.8×104?T/L?5×9.8×105 (Condition 2) 1?R/T?5 where L is a thickness (m) of the film object, R is a rotational velocity (m/min) of the feeding roll and T is a tension (N/m) of the film object after having been subjected to the slitting operation.

Abstract: An object of the present invention is to provide a foamed polyolefin resin sheet which exhibits a high adhesive strength when laminated with a layer formed of a saponified ethylene-vinyl ester copolymer and which still exhibits a high adhesive strength even when laminated with a layer of a thermoplastic resin having relatively low polarity such as a polyolefin resin. This object is attained by a foamed polyolefin resin sheet including a foamed polyolefin resin layer and a non-foamed surface layer formed of a thermoplastic resin composition having an A1/A2 ratio falling within a range between 1×10?8 and 1×10?1, wherein A1 is a maximum absorbance of the infrared absorption spectrum of the thermoplastic resin composition within an infrared ray wave number region of from 1700 to 1750 cm?1 and A2 is a maximum absorbance of the infrared absorption spectrum of the thermoplastic resin composition within an infrared ray wave number region of from 1455 to 1465 cm?1.

Abstract: To provide a polyolefin based resin film of high elastic modulus and a composition for producing a polyolefin based resin film of high elastic modulus. The polyolefin based resin film is characterized in that a polyolefin [A] having a weight average molecular chain length of 2850 nm or more and a polyolefin wax [B] having a weight average molecular weight of 700 to 6000 have been compounded in a ratio of [A]/[B]=90/10 to 50/50 (by weight) as the resin component, and 10 to 300 parts by weight of inorganic fillers have been added to 100 parts by weight of the resin component.