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1. 发明专利

JPS6197566A Detection for generation of crack in brittle material 失效
标题翻译：用于生成脆性材料中的裂纹的检测
公开(公告)号：JPS6197566A
公开(公告)日：1986-05-16
申请号：JP22015284
申请日：1984-10-19
申请人： Onoda Cement Co Ltd , Onoda Ee L C Kk
发明人： TSUKIYAMA KOICHI , OBA MICHIO , TERAMURA TOSHIFUMI
IPC分类号： G01N29/14 , G01N29/22 , G01N29/28
CPC分类号： G01N29/228 , G01N29/14 , G01N2291/0251
摘要： PURPOSE:To detect a possible defect due to the generation of a microscopic crack, by applying an acoustic emission detecting method to a lightweight aerated concrete being cured with an autoclave to monitor. CONSTITUTION:Brittle material S to be inspected is arranged in a container 2 supported with a base 1. The container 2 has a heater 3, which is connected to a controller 12 and a recorder 11 and further to a thermocouple 4 to heat and control the inside of the container 2 to a required temperature. In addition, a waveguide rod 5 is provided piercing the wall of the container 2 and the tip thereof is stuck into a lightweight aerated concrete material S while the other end thereof is mounted on an acoustic emission transducer 6 outside the container 2. An acoustic emission signal in the material S is inputted into a personal computer 9 and a data recorder 10 via an amplifier 7. In this manner, the material S in the container 2 is cured adequately under the required curing conditions and a microscopic crack can be observed as generated during the curing.
摘要翻译：目的：通过将声发射检测方法应用于用高压釜固化的轻质加气混凝土来监测由于产生微小裂纹而可能发现的缺陷。构成：将要检查的脆性材料S布置在由基座1支撑的容器2中。容器2具有加热器3，其连接到控制器12和记录器11，并且还连接到热电偶4以加热和控制容器2内部达到所需温度。此外，设置穿过容器2的壁的波导杆5，并且将其顶端粘贴到轻质加气混凝土材料S中，同时将其另一端安装在容器2外部的声发射换能器6上。声发射材料S中的信号通过放大器7输入到个人计算机9和数据记录器10.以这种方式，容器2中的材料S在所需的固化条件下被充分固化，并且可以观察到产生微小裂纹在治疗期间。

2. 发明专利

JPH0664935A CONTINUOUS PRODUCTION OF WATER-GLASS FIBER 失效
公开(公告)号：JPH0664935A
公开(公告)日：1994-03-08
申请号：JP22293792
申请日：1992-08-21
申请人： UNIV TOHOKU , TOHOKU ELECTRIC POWER CO , ONODA CEMENT CO LTD
发明人： TAKAHASHI HIDEAKI , MORIYA TAKEHIKO , TSUKIYAMA KOICHI , YUDA SHUJI
IPC分类号： C03B37/08 , C03C13/00 , D01D5/04 , D01F9/08 , D02G3/18
摘要： PURPOSE:To stabilize the quality of a water-glass fiber by introducing CO2 gas into a spinning atmosphere having a prescribed temperature and spinning water-glass in the CO2 atmosphere having a prescribed CO2 gas concentration. CONSTITUTION:A water-glass spinning dope melted by heating with a 1st heater 8 is pressed in a cylinder 6 and extruded through a spinning nozzle 7 having a prescribed nozzle diameter into an acrylic resin pipe to effect the continuous spinning of the water-glass. At the same time, CO2 gas is continuously introduced through a gas-introducing port 14 of a drum chamber 4 to keep a nozzle part 2, a cylindrical furnace 3 and the drum chamber 4 to a CO2 atmosphere having a CO2 concentration of 100-8,000ppm. The spun water-glass fiber is brought into contact with CO2 gas in the course of passing through the CO2 gas atmosphere of 100-130 deg.C) to instantaneously form crystals of Na2CO3 and Na2CO3.H2O on the surface of the fiber. The fiber is dried by heating with a 2nd heater 9 of the cylindrical furnace 3 and a 3rd heater 12 placed under the drum chamber 4 and wound on a winding drum 11 to obtain a water-glass fiber having stable quality and free from blister or bubble.

3. 发明专利

JPH01164767A MOLD FOR HOT FORMING AND PRODUCTION THEREOF 失效
公开(公告)号：JPH01164767A
公开(公告)日：1989-06-28
申请号：JP23654288
申请日：1988-09-22
申请人： ONODA CEMENT CO LTD , ONODA ALC KK
发明人： TSUKIYAMA KOICHI , TAKAHASHI HIDEAKI , TSUTSUMI KOICHI , WATANABE KOJI , WADA CHIHARU , KUNUGI KEITAROU , TERAMURA TOSHIFUMI
IPC分类号： B21J13/02 , B28B3/02 , C04B35/64
摘要： PURPOSE:To obtain a mold for hot forming having superior heat resistance, strength, hardness, machinability and high plane accuracy and useful to produce a large-sized ingot by treating xonotlite under specified conditions. CONSTITUTION:An aq. slurry of xonotlite produced on an industrial scale is dehydrated under pressure and molded and the molded body is dried at 100-120 deg.C and heated to bulk sp. gr., >=100kgf/cm bending strength and >=4 Vickers hardness.

4. 发明专利

JPH04349126A PRODUCTION OF HIGH SILICA GLASS 失效
公开(公告)号：JPH04349126A
公开(公告)日：1992-12-03
申请号：JP8714491
申请日：1991-01-25
申请人： UNIV TOHOKU , TOHOKU ELECTRIC POWER CO , ONODA CEMENT CO LTD
发明人： TAKAHASHI HIDEAKI , MORIYA TAKEHIKO , TSUKIYAMA KOICHI , YUDA SHUJI
IPC分类号： C03B8/02 , C03B20/00 , C03C1/00 , C03C3/06
摘要： PURPOSE:To produce high silica glass having alkali resistance with an aq. sodium silicate soln. as starting material. CONSTITUTION:Sodium silicate having =800 deg.C at which glass does not devitrify.

5. 发明专利

JPH04305031A PRODUCTION OF SILICA GLASS 失效
公开(公告)号：JPH04305031A
公开(公告)日：1992-10-28
申请号：JP9345991
申请日：1991-03-30
申请人： UNIV TOHOKU , TOHOKU ELECTRIC POWER CO , ONODA CEMENT CO LTD
发明人： TAKAHASHI HIDEAKI , MORIYA TAKEHIKO , TSUKIYAMA KOICHI , YUDA SHUJI
IPC分类号： C01B33/143 , C03B8/02 , C03B20/00 , C03C3/06
摘要： PURPOSE:To produce a silica glass from cristobalite and to recover and reutilize the residue resulting from impurities in production. CONSTITUTION:An aq. soln. of the sodium silicate having a low content of water prepared from cristobalite is treated with an aq. ammonium nitrate soln. to obtain hydrous silica glass. In this case, the ammonia generated in the treatment with ammonium nitrate and the sodium nitrate obtained when the treated liq. is filtered are respectively recovered. A siliciferous component is added to the sodium nitrate and heated, the NO2 gas is allowed to react with the ammonia to form ammonium nitrate, the ammonium nitrate is used for treating the solidified water glass, the remaining Na2O and the siliciferous component are heated and subjected to reaction, the reaction product is separated into solid and liq., and the separated liq. is used as a part of the material to form the aq. soln. of sodium silicate. soln.

6. 发明专利

JPH0578119A PRODUCTION OF AQUEOUS SOLUTION OF SODIUM SILICATE 失效
公开(公告)号：JPH0578119A
公开(公告)日：1993-03-30
申请号：JP8714591
申请日：1991-01-25
申请人： UNIV TOHOKU , TOHOKU ELECTRIC POWER CO , ONODA CEMENT CO LTD
发明人： TAKAHASHI HIDEAKI , MORIYA TAKEHIKO , TSUKIYAMA KOICHI , YUDA SHUJI
IPC分类号： C01B33/32
摘要： PURPOSE:To provide a process for producing an aqueous solution of sodium silicate using cristobalite. CONSTITUTION:Powder of cristobalite is made to react with sodium hydroxide by heating in an autoclave to obtain an aqueous solution of sodium silicate. In the above process, the molar ratio of SiO2 in the cristobalite powder to Na2O in the sodium hydroxide is set to 2-4, the solid/water ratio in the slurry is adjusted to 1.0-0.1, the treating temperature is set to 80-240 deg.C and the reaction is continued for 30min to 2hr after the temperature of the system is raised to the treating temperature.

7. 发明专利

JPH05824A PRODUCTION OF HIGH STRENGTH SILICIC ACID FIBER 失效
公开(公告)号：JPH05824A
公开(公告)日：1993-01-08
申请号：JP8714691
申请日：1991-01-25
申请人： UNIV TOHOKU , TOHOKU ELECTRIC POWER CO , ONODA CEMENT CO LTD
发明人： TAKAHASHI HIDEAKI , MORIYA TAKEHIKO , TSUKIYAMA KOICHI , YUDA SHUJI
IPC分类号： C03B20/00 , C03B37/01 , C03C13/02
摘要： PURPOSE:To increase strength and elasticity by treating made by spinning hydrate soda silicate with NH4NO3 and heating fiber before treating with water solution of NaOH. CONSTITUTION:SiO2 in cristobalite and NaO of NaOH are reacted in a mole ratio of 2 to 4 and in a slurry solid/water ratio of 1.0 to 0.1 at 80 to 240 deg.C, for 30min to 2hrs to form hydrate soda silicate including =3N NH4NO3, it is heat-treated at >=800 deg.C for =60 deg.C for >=10min.

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