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41. 发明专利

JPH04131741A TEST DEVICE FOR MINUTE TEST PIECE 失效
公开(公告)号：JPH04131741A
公开(公告)日：1992-05-06
申请号：JP25311590
申请日：1990-09-21
申请人： HIDEAKI TAKAHASHI , HASHIDA TOSHIYUKI , JAPAN TOBACCO INC
发明人： TAKAHASHI HIDEAKI , HASHIDA TOSHIYUKI , SHIYUU EIKAN , TOKITSU KAZUHIRO , NEI TOSHIAKI
IPC分类号： G01N3/30
摘要： PURPOSE:To highly precisely measure the displacement of a test piece changing at high speed by irradiating a reflecting surface formed on the outer circumference of a striking means with laser beam to detect the reflected beam CONSTITUTION:When an external force is given to the load receiving part 30a of an input bar 30 by the fall of a striker bar 100, a striking part 30c strikes the test piece to deform it. The axial displacement of the bar 30 is measured by a laser range finder 36. The laser beam LB emitted from the range finder 36 is reflected by an inclined surface 32 formed on the outer circumference of the receiving part 30a of the bar 30 and received by the range finder 36. The axial displacement of the bar 30 is measured on the basis of the time difference between the radiation and receipt of the beam LB. Thus, the displacement of the test piece can be highly precisely measured.

42. 发明专利

JPH03162902A MODIFYING TREATMENT OF WOOD OR THE LIKE 失效
公开(公告)号：JPH03162902A
公开(公告)日：1991-07-12
申请号：JP26841089
申请日：1989-10-16
申请人： MYAGI PREFECTURE , KYOGYO KUMIAI SENDAI FANICHIA , HIDEAKI TAKAHASHI
发明人： TAKAHASHI HIDEAKI , TAMAGAWA KINJI , SATO KIYOSHI , SUZUKI ISAO , YUME SATOSHI , HONMA KATSUMI , SUZUKI YASUO
IPC分类号： B27K3/08 , B27K3/36 , B27K3/38 , B27K5/00 , B27K5/04 , F26B1/00 , F26B3/02 , F26B21/06
摘要： PURPOSE:To make it possible to industrially and efficiently produce high quality high- temperature heat-treated material by a method wherein crack of wood is foreseen by information-processing the signals of acoustic emission (AE) and high-temperature heat treat ment is performed under a condition that its atmosphere is controlled so as not to develop cracks in wood or the like by using temperature and humidity as operating factors on the basis of foreknowledge information. CONSTITUTION:AE is detected in the form of electric signals and cracks of wood or the like is foreseen by comparing data with reference values. For example, AE, the amplitude of which is 1 V or above with the amplification factor of 80 dB within one minute, is recorded. When the cumulative number of event exceeds the reference value or the amplitude exceeds the reference value, cracks are judged to enter warning region, resulting in actuating a steam pouring section so as to pour a large amount of steam in a heat treatment chamber in a short period of time in order to adjust the humidity in the heat treatment chamber. At the same time, the temperature in the heat treatment chamber is adjusted by controlling the actuation of a heating section so as to perform high temperature heat treatment by controlling atmosphere in order to maintain the conditions, under which no AE generates from the wood or the like or AE signals generated have values below the predetermined reference value in order to prevent cracks from developing in the wood. Thus, high quality high-temperature heat-treated material can be efficiently produced.

43. 发明专利

JPH01288758A EVALUATING METHOD OF DEGREE OF DETERIORATION OF AUSTENITIC STAINLESS STEEL 失效
公开(公告)号：JPH01288758A
公开(公告)日：1989-11-21
申请号：JP11970888
申请日：1988-05-17
申请人： HIDEAKI TAKAHASHI , SHOJI TETSUO , TOHOKU ELECTRIC POWER CO
发明人： TAKAHASHI HIDEAKI , SHOJI TETSUO , SAITO YOSHIHISA
IPC分类号： G01N27/00 , G01N27/26 , G01N27/416 , G01N33/20
摘要： PURPOSE:To evaluate the degree of deterioration of austenitic stainless steel, by a method wherein the deterioration of the austenitic stainless steel is recognized as a change in an anode activated current intensity by an anodic polarization method in a prescribed solution and this current intensity is extrapolated on a correlation reference curve with mechanical characteristics prepared from material test data. CONSTITUTION:On end of a probe 17 is immersed in an alkaline electrolyte solution 12, while the other end thereof is immersed in an electrolyte 19. Moreover, one end of an agar salt bridge 20 is immersed in the electrolyte 19, while the other end thereof is immersed in a KCL saturated solution 22. Then, a spontaneous potential generated between a sample 14 of austenitic stainless steel and an electrode 15 is measured by a KCL reference electrode 23. When the potential between the s ample 14 and the electrode 15 is increased thereafter, the intensity of a current flowing between the sample 14 and the electrode 15 rises. An anode activated peak current intensity obtained in this way is extrapolated on a reference curve prepared by subjecting many materials to a Charpy shock test and a creep fracture test beforehand. Thereby the degree of deterioration of the sample can be quantified and evaluated quickly and accurately.

44. 发明专利

JPS61148362A DECISION ON AGING IN CHROME-MOLYBDENUM STEEL 失效
公开(公告)号：JPS61148362A
公开(公告)日：1986-07-07
申请号：JP26989584
申请日：1984-12-21
申请人： HIDEAKI TAKAHASHI , SHOJI TETSUO , IDEMITSU KOSAN CO , TOSHIBA CORP
发明人： TAKAHASHI HIDEAKI , SHOJI TETSUO , YAEGASHI AKIRA , MATSUO KENNOSUKE
IPC分类号： G01N27/26 , G01N17/02 , G01N33/20
摘要： PURPOSE:To decide on aging in Cr.Mo steel non-destructively and at a high accuracy, by employing an aqueous solution with a specified composition of picric acid, dodecyl sodium benzenesulfonate of dimethyl sodium benzenesulfonate as an electrolytic liquid. CONSTITUTION:An aqueous solution containing 0.15-0.16wt.% of picric acid and 0.07-0.3wt.% of dodecyl sodium benzenesulfonate or demithul sodium benzenesulfonate or dimethyl sodium benzenesulfonate is used as electrolytic liquid for decision on aging caused by the high temperature use of Cr.Mo steel. After immersed into the electrolytic liquid for about five minute, a sample electrode of Cr.Mo steel to be measured is swept in the reverse direction from the natural potential A and after held for two minute at the passivity potential C, it is swept reversely at the same speed again to measure the maximum D of current density in a polarization curve. The maximum D is called as minimum current density D. The value D in creases with aging and has a high correlation with Charpy fracture transition temperature. This enables non- destructive measurement of aging non-destructively in a short time at a high density and at a high accuracy.

45. 发明专利

JPS6014155A DETECTION FOR SECULAR BRITTLENESS 失效
公开(公告)号：JPS6014155A
公开(公告)日：1985-01-24
申请号：JP12256683
申请日：1983-07-06
申请人： HIDEAKI TAKAHASHI , SHIYOUJI TETSUO , TOSHIBA KK
发明人： TAKAHASHI HIDEAKI , SHIYOUJI TETSUO , MURAMATSU MASAMITSU , KIMURA KAZUNARI , SAITOU KIYOSHI
IPC分类号： G01N27/26 , G01N17/02 , G01N27/49 , G01N17/00
摘要： PURPOSE:To evaluate a secular temper brittleness of a heat resisting steel without destruction by using the heat resisting steel as the anode in an electrolyte and raising the anode potential to a passive state area and reducing the anode potential thereafter to measure a current which sets the anode potential to the passive state again. CONSTITUTION:The heat resisting steel is provided as an anode 2 in an electrolyte 1 of an aqueous solution of a picric acid and a trimethylbenzene sodium sulfonate. A current density between the anode 2 and a counter electrode 3 and the potential of the anode 2 are measured. When the anode potential is raised, the current density is increased in an active area and reaches a peak (b), but the current density is reduced in the passive-state area. The anode potential is allowed to fall when the current density reaches a point (c). Then, the current density is reduced and reaches a minimum part (the current setting the passive state again). If temper brittleness is not caused in the heat resisting steel, a current i(e) setting the passive state again approximates zero; but if temper brittleness is caused, a current i(d) setting the passive state again is a large value.

46. 发明专利

JPS6014154A DECISION DEVICE OF BRITTLENESS OF METALLIC MATERIAL 失效
公开(公告)号：JPS6014154A
公开(公告)日：1985-01-24
申请号：JP12159183
申请日：1983-07-06
申请人： HIDEAKI TAKAHASHI , SHIYOUJI TETSUO , TOSHIBA KK
发明人： TAKAHASHI HIDEAKI , SHIYOUJI TETSUO , MURAMATSU MASAMITSU , KIMURA KAZUNARI , SAITOU KIYOSHI
IPC分类号： G01N27/26 , G01N17/00 , G01N17/02 , G01N33/20
摘要： PURPOSE:To decide a degree of brittleness of metallic materials without destruction by supplying an electrolytic solution to a probe, which is brought into contact with a metallic object to be measured, to measure the polarizability of the object to be measured. CONSTITUTION:A probe 2 is brought into contact with an object 1 to be measured as metallic materials which are used at a high temperature. The probe 2 is provided with a collating electrode 6 and a counter electrode 8, and an electrolytic solution 3 is supplied to the probe 2. A potential is loaded between the electrode 6 and the counter electrode 8 from a power source 4. This potential is swept in a prescribed speed from a negative potential in the positive direction and is held in a prescribed positive potential for a prescribed time and is swept reverse to the negative potential in a prescribed speed. At this time, such control is performed that potentials of the electrode 6 and the object 1 to be measured are held in prescribed values. A polarization curve is obtained in accordance with potentials and a current between the object 1 to be measured and the counter electrode 8. A polarization characteristic value is obtained in an arithmetic device on a basis of this polarization curve.

47. 发明专利

JPS603545A ELECTROLYTIC CELL FOR MEASURING POLARIZATION CURVE 失效
公开(公告)号：JPS603545A
公开(公告)日：1985-01-09
申请号：JP11150883
申请日：1983-06-21
申请人： HIDEAKI TAKAHASHI , SHIYOUJI TETSUO , TOSHIBA KK
发明人： TAKAHASHI HIDEAKI , SHIYOUJI TETSUO , SAITOU KIYOSHI , MURAMATSU MASAMITSU
IPC分类号： G01N27/26 , G01N17/00 , G01N17/02 , G01N27/416 , G01N27/46
摘要： PURPOSE:To measure highly precisely a polarization without any leakage by connecting a vessel for supplying electrolyte to one end part of a double tube, providing a double cylinder to another end part through a connecting valve, pressing an opening part for measurement, and pouring the electrolyte into the double cylinder. CONSTITUTION:A liquid 2 in an electrolytic cell is allowed to flow into the vessel 11 for supplying electrolyte through an inner tube 9b, by closing a connecting valve 19 and driving a pump 13. The liquid 2 is sent to the connecting tube 19 provided at another end part 10b of the double tube 10 from a supplying hole 8a of an outer tube 8, and returns to an electrode vessel 1 through an inner tube 9a. Next, if the measuring opening part 22a of the double cylinder 22 is brought into contact with a material W to be measured through a packing 23 and pressed, the valve 19 is opened by this operation. Thus, the liquid 2 flows down through an outer cylinder 20, then impinges on a surface of the material W and returns. An opening or closing valve 17 is opened, gaseous nitrogen of a deaeration apparatus 16 is bubbled in the liquid 2 for deaeration, driving of the pump 13 is stopped at a time point when the dissolved oxygen concn. of the liquid 2 is lowered to a suitable value, and the polarization is measured.

48. 发明专利

JP2001003520A ROOF MATERIAL JOINT AND WATERPROOF PROCESSING OF OVERLAPPED PART 失效
公开(公告)号：JP2001003520A
公开(公告)日：2001-01-09
申请号：JP20804699
申请日：1999-06-18
申请人： TAKAHASHI YOSHIJI , HIDEAKI TAKAHASHI
发明人： TAKAHASHI YOSHIJI , TAKAHASHI HIDEAKI
IPC分类号： E04D1/36
摘要： PROBLEM TO BE SOLVED: To prevent rainwater leakage by attaching a back-up material to the joint part of a roof material. SOLUTION: A silicon back-up material 3 is attached between the materials 1, 2 of a roof material. Thereby rainwater can be prevented from leaking from the joint part of the materials 1, 2. In addition, water reversely flows in a hollow part by capillary action and water leakage can be prevented from occurring by attaching the back-up material in the upper direction of the materials 1, 2 of the roof material.

49. 发明专利

JPH08325043A PRODUCTION OF HIGH STRENGTH INORGANIC HARDENED BODY 失效
公开(公告)号：JPH08325043A
公开(公告)日：1996-12-10
申请号：JP4128495
申请日：1995-02-06
申请人： MAEDA SEIKAN KK , HIDEAKI TAKAHASHI , HASHIDA TOSHIYUKI
发明人： TAKAHASHI HIDEAKI , HASHIDA TOSHIYUKI , SATO KAZUHIKO
IPC分类号： C04B7/32 , B28B3/00 , B28B11/24 , C04B12/02 , C04B22/16 , C04B28/06 , C04B28/34 , C04B111/26
摘要： PURPOSE: To provide a material intended to open up new avenues of use for a calcium aluminate-based material, having very high strength and excellent in corrosion and heat resistances. CONSTITUTION: When an inorg. hardened body using 50-90wt.% calcium aluminate such as alumina cement as principal stock is produced, 10-30wt.% condensed phosphate or 10-50wt.% phosphate glass is added to 50-90wt.% calcium aluminate, they are further mixed with 0-20wt.% amorphous silica powder and the resultant blend is caked under mechanical pressing and under the condition of hot water.

50. 发明专利

JPH07126066A CALCIUM SILICATE-CONTAINING SINTERED MATERIAL AND PRODUCTION THEREOF 失效
公开(公告)号：JPH07126066A
公开(公告)日：1995-05-16
申请号：JP27213293
申请日：1993-10-29
申请人： HIDEAKI TAKAHASHI , KOJIMA TAKASHI , CHICHIBU ONODA CEMENT CORP
发明人： TAKAHASHI HIDEAKI , KOJIMA TAKASHI , WADA CHIHARU , SAKAMAKI MAKOTO
IPC分类号： C04B35/16
摘要： PURPOSE:To improve fracture strength by forming a sintered material composed of a specified weight ratio of alpha-wollastonite, lithium aluminosilicate and zirconia as the main constituent phases. CONSTITUTION:With 4 to 95wt.% calcium silicate mineral or calcium silicate hydrate, e.g. alpha-wollastonite having about =80wt.%.

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