Abstract:
PROBLEM TO BE SOLVED: To provide a method of producing acicular chromium dioxide having high coercive force, short particle length and narrow particular size distribution. SOLUTION: The method of producing chromium dioxide modified by iron and tellurium or antimony and having coercive force of >60 kA/m, saturation magnetization of >85 nTm3/g and average particle length of
Abstract:
PROBLEM TO BE SOLVED: To manufacture glass gob having high quality and high precision in weight with high productivity. SOLUTION: A driving signal 1 for starting the drive of a conveying means 108 is sent and hereby a molding die is conveyed to a casting position. When a signal showing that the drive of the conveying means is completed is received, a driving signal 2 for starting the drive of a molding die raising/lowering means is sent and hereby the molding die is raised to receive the tip of molten glass in the molding die and then the molding die is lowered to receive molten glass of fixed weight in the molding die. When a predetermined time passes after the driving signal 1 is sent, the driving signal 1 is sent again and hereby the glass gob-received molding die is conveyed and an empty molding die is conveyed to the casting position. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To cut plural glass fibers or photocatalyst fibers at a cutting face capable of introducing a prescribed quantity of light and to omit a polishing stage for the end faces of the fibers. SOLUTION: Many photocatalyst fibers 2 are packed and fixed to a frame 5 of the gas treatment apparatus and the photocatalyst fibers 2 on the side to be cut off are also packed and fixed into a frame 10 for cutting off. A cutting blade 11 is rotated around a fulcrum 12 with respect to the photocatalyst fibers 2 between the frame 5 and the frame 10 for cutting off. This blade 11 is pressed nearly perpendicularly to the longitudinal direction of the photocatalyst fibers 2, by which the photocatalyst fibers are cut. The cutting faces of the photocatalyst fibers 2 are made into a mirror finished surface-like surface state by this cutting, by which the need for polishing the end faces is eliminated.
Abstract:
PROBLEM TO BE SOLVED: To provide a method and an apparatus for producing a visually faultless glass block from fused glass with high productivity. SOLUTION: The glass block is produced from a fused glass block by being molded and cooled at a glass block molding part with an intermittent circumferential movement. An intermittent circumferential moving time at the glass block molding part is 0.1 second or more and 0.25 second or less and an intermittent circumferential moving distance for one movement at the glass block molding part is 0.8-7 cm. The apparatus for molding the glass block from fused glass which flow out continuously has a turn table which moves around a rotating shaft circumferentially and a glass block mold placed on the turn table. The glass block mold has plural glass block molding parts to mold the glass block by receiving fused glass on the upper face and is placed on the turn table to arrange the glass block molding part with uniform apace on the circumference of which the center is that of the turn table.
Abstract:
PROBLEM TO BE SOLVED: To obtain a high quality glass ingot by reducing the contact of the glass ingot with the molding surface at the horizontal transferring of the mold. SOLUTION: This method for forming a glass ingot uses a mold 102 having a concave molding surface 102a which receives a described weight of molten glass at the casting position and forms this into a glass ingot, where the mold 102 has a plurality of gas jetting nozzles 132 at positions along the periphery g and inside of the glass ingot put on the molding surface at the molding surface 102a, which eject a gas to float or nearly float the glass ingot. The gas ejected from nozzles disposed at positions along the periphery of the glass ingot not only functions to float or nearly float the glass ingot but also acts as a resistant force to the movement in the horizontal direction generated in the glass ingot caused by horizontal transferring of the mold.
Abstract:
PROBLEM TO BE SOLVED: To produce glass gobs of high quality and high weight accuracy with high productivity. SOLUTION: A drive signal 1 to start driving of a transfer means 108 is delivered, by which a formed die is moved to a casting position. A signal indicating that the driving is completed is received and, when this signal is received, the drive signal 1 to start the driving of a lifting means for the formed die is delivered, by which the forming die is risen to receive the front end of molten glass and thereafter the forming die is lowered to receive the molten glass of a specified weight. The drive signal 1 is delivered at the time when a predetermined time elapses after the receipt of the signal indicating the delivery of the driving signal or the completion of the drive signal, by which the forming die receiving the glass gob is transferred and the empty formed die is transferred to the casting position.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing bundled fibers by allowing a liquid adhesive to penetrate into a group of fibers up to the same depth and effectively bonding ends of the fibers. SOLUTION: Ends of densely packed plural fibers are aligned, fixed and brought into contact with a liquid adhesive with the fixed ends downward. The liquid adhesive is raised by capillarity through the gaps among the densely packed fibers. At the point when the rate of raising lowers at 0.1-0.01 mm/min variation, the liquid adhesive is solidified to produce the objective bundled fibers.
Abstract:
PROBLEM TO BE SOLVED: To obtain a gas treatment apparatus and gas treatment filter which are capable of efficiently developing a photocatalytic reaction and are small in size and high in treatment capacity. SOLUTION: The gas treatment unit 1 has a multiplicity of photocatalytic fibers 3 held between metallic filters 2 as air permeable members in a bundled state. Photocatalytic fiber 3 is formed by depositing a photocatelyst having the refractive index higher than the refractive index of a fiber-like guide body having projections on the surface of the light guide body. The gas to be treated flows through the gaps of the many photocatalyst fibers 3 bundled between the metallic filters 2. On the other hand, the UV rays from a UV light 6 are cast to the end faces of the photocatalystic fibers 3 and leaks out to the photocatalyst on the surface of the light guide bodies while propagating in the photocatalytic fibers 3. At this time, the malodorous components, etc., included in the gas are brought into contact with the photocatalyst excited by the UV rays and are decomposed by the photocatalytic reaction.
Abstract:
PROBLEM TO BE SOLVED: To provide a method of producing a glass gob which makes it possible to produce a glass gob low in weight dispersion and having high quality. SOLUTION: The method of producing the glass gob comprises a first process wherein a molten glass flow is received in a molding die; a second process wherein the molten glass flow is divided by lowering the molding die at a speed faster than down flow velocity of the molten glass, and the molten glass with a predetermined weight is left in the molding die; a third process wherein the glass gob is formed in a state in which the molten glass left in the molding die is floated or almost floated by being sprayed with gas. The first process is carried out by spraying the gas having a rate of flow lower than that in the third process on the molten glass flow or alternately without spraying it.