摘要:
A mold device and a method of manufacturing a cylinder block. The mold device comprises a split core having two first split cores formed so that the tip parts thereof may be in a tapering shape, two second split cores installed between the first spilt cores, and an inner core is installed at the center part and pushing out the first split cores in the direction receding from the center axis thereof. When the inner core is pushed out to push out and position the first spilt cores, both end parts of the second split cores are brought into contact with the tip parts of the adjacent first split cores, and the outer side-faces of the first split cores and the outer side-faces of the second split cores form a cylindrical shape. When the inner core is raised, the first split cores and the second split cores are pulled to the axial center by first engagement pieces and second engagement pieces.
摘要:
A method of manufacturing a cylinder block using a die apparatus wherein a columnar hole includes a bore in the cylinder block. The method includes the steps of abutting first and second split cores against an upper surface of a distal end core, the upper surface being located opposite the inner core, and introducing a molten metal into a cavity. An inner core is withdrawn to move the first and second split cores toward an axis. The first and second split cores are released from a formed product made of solidified molten metal. The split cores are removed from the formed product to form the bore, and an inner surface of the bore is cut.
摘要:
An aggregate with small fiber deterioration even after being held under compression under heating at about 1,000° C. for a long term, and a holding material of e.g. a catalyst carrier of a catalyst converter or a honeycomb body of DPE employing it, are provided. An inorganic short fiber aggregate for a holding material, which is an aggregate of inorganic short fibers having a chemical composition of from 74 to 86 mass % of an alumina component and from 26 to 14 mass % of a silica component and having a mineral composition of from 15 to 60 mass % of mullite, wherein the average fiber diameter of the aggregate is from 2 to 8 μm, at least 99% (including 100%) of the number of the inorganic short fibers consists of fibers having fiber diameters of from 1.5 to 15 μm, and the specific surface area is at most 10 m2/g. Its production process, and a holding material consisting of a sheet-shape formed product comprising the aggregate and an organic binder contained in the aggregate, wherein inorganic short fibers are employed.
摘要:
A system and method are disclosed for controlling ventilation in a tunnel. According to the disclosed system and method, a set speed value for each vehicle traveling in the tunnel is determined based on the measured level of a physical phenomenon in the tunnel. The set speed value is communicated to each vehicle traveling in the tunnel and/or utilized to control a tunnel ventilator.
摘要:
A cast coated paper for ink jet recording is prepared by a process including the steps of: forming on a base paper an undercoating layer containing alumina having a bulk density of at most 0.2 g/cm.sup.3 and an adhesive, applying onto the undercoating layer an overcoating liquid containing a resin to form a wet overcoating layer, and pressing the wet overcoating layer against a heated drum having a mirror-finished surface to dry the overcoating layer, thereby forming a cast-coating layer. The resultant cast coated paper shows not only good gloss and ink jet recording performances (inclusive of ink absorptivity and recorded image density), but also good weather-fastness of recorded images.
摘要翻译:用于喷墨记录的流延涂布纸通过包括以下步骤的方法制备:在原纸上形成包含堆积密度为至多0.2g / cm 3的氧化铝的底涂层和粘合剂,在底涂层上涂布外涂层 含有树脂的液体以形成湿的外涂层,并且将湿的外涂层压在具有镜面抛光表面的加热鼓上以干燥外涂层,从而形成浇铸涂层。 所得到的涂布纸不仅具有良好的光泽度和喷墨记录性能(包括油墨吸收率和记录图像密度),而且显示了记录图像的良好耐候性。
摘要:
The disclosed are a soft drink having both an excellent fruity aroma and a fruity afteraroma once swallowed, and a method for manufacturing the same. The further disclosed are a grape skin extract, rich in precursors of 3-mercaptohexan-1-ol having good aroma, for use in manufacturing the soft drink, and to a method of preparation of the same.
摘要:
An aggregate with small fiber deterioration even after being held under compression under heating at about 1,000° C. for a long term, and a holding material of e.g. a catalyst carrier of a catalyst converter or a honeycomb body of DPE employing it, are provided. An inorganic short fiber aggregate for a holding material, which is an aggregate of inorganic short fibers having a chemical composition of from 74 to 86 mass % of an alumina component and from 26 to 14 mass % of a silica component and having a mineral composition of from 15 to 60 mass % of mullite, wherein the average fiber diameter of the aggregate is from 2 to 8 μm, at least 99% (including 100%) of the number of the inorganic short fibers consists of fibers having fiber diameters of from 1.5 to 15 μm, and the specific surface area is at most 10 m2/g. Its production process, and a holding material consisting of a sheet-shape formed product comprising the aggregate and an organic binder contained in the aggregate, wherein inorganic short fibers are employed.
摘要:
Methacrylonitrile higher in purity than that obtained by the conventional process is efficiently produced by the present improved process for producing purified methacrylonitrile in which the reaction mixture formed by the ammoxidation of isobutylene or tert-butyl alcohol is distilled using water as solvent to obtain a crude methacrylonitrile solution which contains methacrylonitrile as major constituent, methacrolein, hydrogen cyanide, and isobutyronitrile, and the crude methacrylonitrile solution is then purified in a product column, wherein the improvement comprises first removing isobutyronitrile from said crude solution, then feeding the remaining solution to the product column, withdrawing from the top a vapor containing methacrolein, condensing the vapor, returning a greater part of the condensate to the product column while removing the remainder from the distillation system, and withdrawing purified methacrylonitrile from the middle or lower section, preferably from a point lower than the feeding stage.
摘要:
A reagent container set is disclosed which comprises: a first reagent container for accommodating a first reagent to be used in a sample analyzer, the top part of the first reagent container having a first aspiration opening for inserting a first reagent aspirating tube to aspirate the first reagent; a waste fluid container for accommodating the first reagent used in the sample analyzer as a waste fluid, the top of the waste fluid container having a discharge opening for inserting a waste fluid discharging tube to discharge the waste fluid into the waste fluid container; a box for accommodating the first reagent container and the waste fluid container; and a container holding member for holding the first reagent container and the waste fluid container so that the first aspiration opening and the discharge opening are disposed at predetermined positions, the container holding member being maintained at a predetermined position within the box.