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公开(公告)号：JP2000169237A
公开(公告)日：2000-06-20
申请号：JP34913198
申请日：1998-12-08
Applicant: AGENCY IND SCIENCE TECHN , INAX CORP , TOYO DENKA KOGYO CO LTD , NIKKO KK , YKK CORP
Inventor： SHIBAZAKI YASUO , ODA KIICHI , SANO SABURO , TOMONO TAKUMI , OGURI KENTA , KAWAI HIDEJI , NOMURA YUJI , ONO AKIRA
IPC: C04B33/13 , B28B3/20 , B28C1/16 , C04B35/622
Abstract: PROBLEM TO BE SOLVED: To control the plasticity of a kneaded clay so that the extrusion molding can be carried out excellently by adding a buffer material having deformability having a stress showing a specific value when a prescribed deformation is caused to an original shape, as an additive to a kneaded clay comprising nonplastic particles. SOLUTION: A buffer material having deformability with 0.002-0.7 MPa stress when the original shape is deformed by 40%, is added to a kneaded clay, especially preferably to the kneaded clay comprising nonplastic particles such as alumina as an additive for imparting the plasticity to control the plasticity of the kneaded clay. The size of the buffer material is preferably 10-1,000 μm, and the buffer material having high water absorption such as the one having water-absorbing magnification of 5-500 times is preferably used. The proportion of the added buffer material is preferably 0.05-10 wt.% based on the amount (100 wt.%) of the particles of the kneaded clay. The buffer material is thought that when an external force is applied to the kneaded clay, the plasticity is heightened because the buffer material itself is deformed and assists the movement of the particles of the kneaded clay to heighten the fluidity of the clay.
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2.发明专利
公开(公告)号：JP2000007327A
公开(公告)日：2000-01-11
申请号：JP16987098
申请日：1998-06-17
Applicant: AGENCY IND SCIENCE TECHN
Inventor： ONO AKIRA , SHIBAZAKI YASUO , ODA KIICHI , SANO SABURO , TOMONO TAKUMI , OGURI KENTA , KAWAI HIDEJI , NOMURA YUJI
Abstract: PROBLEM TO BE SOLVED: To provide highly plastic alumina particles exhibiting an excellent plastic property as a raw material for ceramics by forming alumina hydrate coating films on the surfaces of alumina particles. SOLUTION: The alumina particles each preferably has a fine hexagonal plate-like shape, a particle size of
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公开(公告)号：JPS62207944A
公开(公告)日：1987-09-12
申请号：JP5166086
申请日：1986-03-10
Applicant: AGENCY IND SCIENCE TECHN , SEIKO INSTR & ELECTRONICS
Inventor： ONO AKIRA , BABA TETSUYA , FUNAMOTO HIROYUKI , NISHIKAWA AKIRA
IPC: G01N25/18
Abstract: PURPOSE:To stably calculate with high accuracy the thermal conductivity of an object to be measured, by giving a temperature difference to a part of the object to be measured and its periphery, and measuring a temperature distribution which is generated thereby. CONSTITUTION:An object to be measured 1 is supported by a sample supporting base 3, a sample retaining plate 2, and a set-screw 5, and a means for generating a temperature difference between a part of the object to be measured and the periphery of the object to be measured, for instance, a heater 4 being a heating source is made to contact to the sample supporting base 3. Heat by such a heater 4 is brought to conduction heating to both ends of the object to be measured 1 through the sample supporting base 3, and a temperature distribution is generated in the longitudinal direction (x direction) of the object to be measured 1. As for the temperature distribution in the longitudinal direction of the object to be measured 1, the effect of a conduction from the object to be measured 1 to an atmosphere and the convection of the atmosphere can be disregarded, by holding the inside of a vacuum container 6 in a high vacuum exceeding 1X10 Torr. The temperature distribution of the object to be measured 1 is measured by a non-contact temperature measuring means 9 through an optical window 8.
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公开(公告)号：JPH1194725A
公开(公告)日：1999-04-09
申请号：JP26817797
申请日：1997-09-12
Applicant: AGENCY IND SCIENCE TECHN , CERAMICS SUIKA SOSEIKEI GIJUTS
Inventor： SHIBAZAKI YASUO , ODA KIICHI , SANO SABURO , TOMONO TAKUMI , OGURI KENTA , KAWAI HIDEJI , NOMURA YUJI , ONO AKIRA
Abstract: PROBLEM TO BE SOLVED: To correctly measure plasticity of kneaded earth by adding pressure by a piston to the elastic body stored in a cylinder chamber, extruding the kneaded earth through a capillary, and obtaining a shear stress and a shear velocity from an extrusion pressure at the time, etc. SOLUTION: A kneaded earth 18 as a sample is pressed into a cylinder chamber 10. A piston 16 is pressed to extrude the kneaded earth 18 from a capillary 14. An extrusion pressure is measured by a pressure sensor 20. A shear stress and a shear velocity are obtained from the measured extrusion pressure, an extrusion speed and a size of the capillary 14. At this time, a pressure loss of the extrusion pressure applied by the piston 16 into the capillary 14 through the cylinder chamber 10 is corrected with a length of the capillary, so that a true shear stress is obtained. The true shear stress is obtained under various shear velocities, and a relationship of the shear velocity and shear stress is induced. A fluidity and a shape retention of the plastic body 18 are obtained from the relationship of the shear velocity and shear stress, and whether the kneaded earth has good plasticity or not is judged.
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公开(公告)号：JPS62197754A
公开(公告)日：1987-09-01
申请号：JP3976386
申请日：1986-02-25
Applicant: AGENCY IND SCIENCE TECHN
Inventor： ONO AKIRA , BABA TETSUYA
IPC: G01N25/18
Abstract: PURPOSE:To measure heat conductivity of an object to be measured at a high accuracy, by a method wherein a beam from a pulse laser is made incident to one end of an optical fiber and emitted from the end thereof to irradiate the object being measured and a rise in the temperature is measured. CONSTITUTION:A laser beam 2a from a pulse laser 1 is focused with a lens 3 to be incident into one end of a step index type optical fiber 4. At this point, the laser beam 2a propagates through the optical fiber 4 while being totally reflected repeatedly many times to become uniform spetially by being distributed evenly. The beam is emitted from the other end of the optical fiber 4, made parallel with a lens 5, adjusted in the beam diameter with a diaphragm to irradiate and heat the surface of the object 7 being measured, A rise in the temperature of the object 7 being measured is measured with a thermometer 8 to determine heat conductivity. This makes spatial energy distribution of a pulse laser beam uniform thereby enabling highly accurate measurement of heat conductivity.
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Patent Agency Ranking
公开(公告)号：JPH0469559A
公开(公告)日：1992-03-04
申请号：JP18367590
申请日：1990-07-10
Applicant: AGENCY IND SCIENCE TECHN , SEIKO INSTR INC
Inventor： ONO AKIRA , BABA TETSUYA , MATSUMOTO TAKESHI , YAMAMOTO MINAO
IPC: G01N25/18
Abstract: PURPOSE:To measure the heat conductivity of a thin film by arranging heat sources between the thin film and its substrate at constant intervals and measuring the temperature variation of the surface of the thin film while the heat sources generate heat periodically. CONSTITUTION:The microheaters 3 are embedded between the substrate 2 and thin film 1 to be measured at the constant gap intervals and generate heat at a specific period to separate thermal influence between the thin film 1 and substrate 2; and a radiation thermometer is used to measure the phases of temperature amplitudes on the gaps of the heaters embedded in the surface of the thin film 1, the phase difference from the phase of microheater heating is found to calculate heat diffusivity from the phase difference, and the result is multiplied by heat capacity per unit volume of the thin film 1 to find the heat conductivity from a specific expression. Consequently, the heat conductivity of the thin film which can not be present as a single layer can accurately be measured.
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公开(公告)号：JPH03236003A
公开(公告)日：1991-10-22
申请号：JP3267690
申请日：1990-02-14
Applicant: AGENCY IND SCIENCE TECHN
Inventor： BABA TETSUYA , ONO AKIRA , KOU SOUKI
IPC: G02B6/00 , B23K26/06 , B23K26/073
Abstract: PURPOSE:To allow the conversion of a large-output laser beam to a radiant heating source of a specially uniform energy distribution by irregularly reflecting the above-mentioned laser beam by the local bends of the light guide, providing a convex lens and an aperture at the exit end of the guide and then adjusting the distribution intensity. CONSTITUTION:The light of a high-luminance light source or large-output laser 1, etc., is made incident on the step index light guide 4. The local bends 5 are formed at the guide 4 to generate the irregular reflections in the light beam and to uniformize the energy distribution in the light guide. The real image at the exit end face of the light guide 4 is then formed on the aperture surface having the aperture of an arbitrary shape by a 1st convex lens 6 and further the real image of the aperture is formed on an objective lens 11 by a 2nd con vex lens 9. The large-output laser beam is converted to the beam of the spacially uniform energy distribution in this way. Contribution is thus made to the improvement in the accuracy of laser beam processing, the enhancement of a heat treatment, the improvement in the accuracy of measuring techniques, etc.
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公开(公告)号：JPH01110225A
公开(公告)日：1989-04-26
申请号：JP26623787
申请日：1987-10-23
Applicant: AGENCY IND SCIENCE TECHN
Inventor： KOBAYASHI MASANOBU , ONO AKIRA
Abstract: PURPOSE:To realize a stable infrared radiation meter without use of mechanical part such as chopper, by monitoring a temperature of an optical system to compensate for a temperature drift at the zero point. CONSTITUTION:A detector 1 comprising a photodiode such as InSb and HgCdTe is placed into a vacuum container 2 and cooled by a liquid nitrogen 3. Infrared rays from a measuring point form an image on a light detecting surface of the detector 1. A field of view of the detector 1 is restricted by a cold shield 4. Temperature of an optical system is monitored by a temperature sensor 8 to compensate for a temperature drift at the zero point of an infrared radiation meter by an output thereof.
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公开(公告)号：JPS6416954A
公开(公告)日：1989-01-20
申请号：JP17307087
申请日：1987-07-13
Applicant: AGENCY IND SCIENCE TECHN
Inventor： ARAI TERUO , BABA TETSUYA , ONO AKIRA
Abstract: PURPOSE:To perform specific heat measurement which is hardly affected by radiation loss by measuring the energy density at a place where the distribution of the energy density in a pulse beam emitted by a high-brightness light source is locally flat. CONSTITUTION:A heater 10 varies the temperature of a sample 4 from room temperature to specific high temperature. The sample 4 is placed in a vacuum tank 8 together with a hemispherical mirror 5 and a projecting beam 1 is guided in the sample 4 through the window of the vacuum tank 8. When the energy density of the beam 1 is measured, the energy of a part of the beam 1 is extracted by a beam splitter 2 and an energy density measuring instrument 3 monitors only the part where the energy density distribution is flat through an opening. Further, when the energy distribution of the beam 1 is measured, stainless steel foil coated with paint, for example, is provided at the same place with the same 4, the beam 1 is made incident on it, and the spatial distribution of the temperature raise of the stainless steel foil is observed by a heat image device 9 from the reverse side. Thus, the specific heat measurement which is hardly affected by radiation loss is performed.
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公开(公告)号：JPH1183719A
公开(公告)日：1999-03-26
申请号：JP24821997
申请日：1997-09-12
Applicant: AGENCY IND SCIENCE TECHN , CERAMICS SUIKASO SEIKEI GIJUTS
Inventor： SHIBAZAKI YASUO , ODA KIICHI , SANO SABURO , TOMONO TAKUMI , KAWAI HIDEJI , OGURI KENTA , NOMURA YUJI , ONO AKIRA
Abstract: PROBLEM TO BE SOLVED: To provide a method for evaluating plasticity of a tempered soil wherein plasticity of a tempered soil under such condition as close to a closed space is evaluated with ease. SOLUTION: At a bottom part of a cylinder 1, a nozzle plate 3 comprising a nozzle hole 2 is fixed with a lock nut 4. A sample S sandwiched between filter papers F is put in the cylinder 1, and pressed by a piston 5. The sample S is pressurized to reduce its volume. Solid volume ratio between when pressurized under low pressure and when under a high pressure is measured, and plasticity is evaluated from its difference. The larger the solid volume ratio difference between when pressurized under low pressure and pressurized under high pressure, the more preferable the filling characteristics of a tempered soil in a closed space.
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