专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH10185863A MEASURING METHOD FOR CONCENTRATION OF SOLUTE ELEMENT IN MOLTEN METAL 失效
公开(公告)号：JPH10185863A
公开(公告)日：1998-07-14
申请号：JP35622896
申请日：1996-12-24
申请人： KAWASO DENKI KOGYO , IWASE MASANORI
发明人： IWASE MASANORI , GOMYO KENICHI
IPC分类号： G01N27/411 , G01N20060101 , G01N33/20
摘要： PROBLEM TO BE SOLVED: To obtain a measuring method by which the concentration itself of an element as an object to be measured can be measured, by using an electrochemical sensor, which measures the activity of the object to be measured in molten metal and computing the concentration by using a specific expression on the basis of a detected electromotive force and on the basis of the temperature of the molten metal. SOLUTION: An electrochemical sensor, which measures the activity of an object to be measured in a molten metal is used in such a way that a solid electrolyte, which is oxygen ion-conductive and an inorganic substance containing the oxide of an element identical to an element as an object to be measured, with which a subelectrode or the solid electrolyte is to be coated are combined or that a solid electrolyte, which contains the oxide of the element identical to the element as the object to be measured and which is oxygen ion-conductive is used. Then, on the basis of an electromotive force E detected by a sensor and on the basis of the temperature T of a liquid metal, the concentration [%M] of the element as the object to be measured is computed by an expression: log[%M]+C0 [%M]=C1 +C2 (E/T)+C3 /T-ΣCi[%X] (where C0 , C1 , C2 , C3 and Ci represent constant, and [%X] represents a solute element other tham a component M in the molten metal).

2. 发明专利

JPH09288082A PROBE FOR CONTINUOUSLY MEASURING OXYGEN IN MOLTEN METAL 失效
公开(公告)号：JPH09288082A
公开(公告)日：1997-11-04
申请号：JP12217096
申请日：1996-04-20
申请人： FUJIKURA LTD , KAWASO DENKI KOGYO
发明人： ABE KAZUYA , SASAKI SEIJI , YAMASHITA HAJIME , IGAWA HISAO , KANEKAWA YUKIO
IPC分类号： G01N27/411 , G01N33/20
摘要： PROBLEM TO BE SOLVED: To provide a probe capable of continuously and stably measuring oxygen in a molten metal with high accuracy over a long time. SOLUTION: In a measuring part 11, a sheath thermocouple 2 also used as an internal electrode is inserted into a solid electrolyte pipe 4 closed at it lower end, and the solid electrolyte pipe 4 is packed with a reference substance 3 composed of Mo and MoO2 . An internal protective pipe 5 is fitted to the upper end part of the solid electrolyte pipe 4 and the sheath thermocouple 2 of the part led out of the solid electrolyte pipe 4, and the upper end part of the solid electrolyte pipe 4 is fitted to the lower end part of the internal protective pipe 5. Both of them are fixed by a fixing agent such as refractory cement. An external protective pipe 6 also used as an external electrodes is externally fitted to the internal protective pipe 5 and the solid electrolyte pipe 4, and slits 7a, 7b are formed to the lower part of the external protective pipe. The width of these slits is 2mm or more as the circular arc length along the outer periphery of the external protective pipe 6 and the sum total of the widths of all of the slits are 70% or less of the outer periphery of the pipe 6.

3. 发明专利

JPH09288081A PROBE AND DEVICE FOR CONTINUOUSLY MEASURING OXYGEN IN MOLTEN METAL 失效
公开(公告)号：JPH09288081A
公开(公告)日：1997-11-04
申请号：JP12216996
申请日：1996-04-20
申请人： FUJIKURA LTD , KAWASO DENKI KOGYO
发明人： ABE KAZUYA , SASAKI SEIJI , YAMASHITA HAJIME , IGAWA HISAO , KANEKAWA YUKIO
IPC分类号： G01N27/411 , G01N33/20
摘要： PROBLEM TO BE SOLVED: To provide a probe and device capable of continuously and stably measuring oxygen in a molten metal with high accuracy over a long time. SOLUTION: In a measuring part 11, a sheath thermocouple 2 also used as an internal electrode is inserted into a solid electrolyte pipe 4 closed at its lower end and a solid electrolyte pipe 4 is packed with a reference substance 3 composed of Mo and MoO2 . An internal protective pipe 5 is fitted to the upper end part of the solid electrolyte pipe 4 and the sheath thermocouple 2 of the part led out of the solid electrolyte pipe 4, and the upper end part of the solid electrolyte pipe 4 is fitted to the lower end part of the internal protective pipe 5. Both of them are fixed by a fixing agent such as refractory cement. An external protective pipe 6 also used as an external electrode is externally fitted to the internal protective pipe 5 and the solid electrolyte pipe 4, and slits 7a, 7b are formed to the lower part of the external protective pipe. The width of these slits is 1/4 or more the outer diameter of the solid electrolyte pipe 4 and below 1/3 the outer diameter of the external protective pipe 6.

4. 发明专利

JP2660372B2 失效
公开(公告)号：JP2660372B2
公开(公告)日：1997-10-08
申请号：JP19607692
申请日：1992-06-29
申请人： KAWASO DENKI KOGYO KK , SHINNIPPON SEITETSU KK
发明人： KAMYAMA HISAO , OKADA TSUTOMU , YAMANE KENJI , KUNITOMO KAZUYA , SAKAGUCHI IKUHEI , IDA KOJI , NAKAKITA WATARU , KAWAMOTO YOSHIHISA , FUJII EIJI
IPC分类号： C21B7/24

5. 发明专利

JP2562906B2 失效
公开(公告)号：JP2562906B2
公开(公告)日：1996-12-11
申请号：JP18919887
申请日：1987-07-29
申请人： KAWASO DENKI KOGYO
发明人： TSUDA TAKASHI , KITAURA TOSHUKI , KUROKI TOSHIKI
IPC分类号： G01N33/20

6. 发明专利

JPH08303964A LEAKAGE SENSING SENSOR IN METAL MELTING FACILITY 失效
公开(公告)号：JPH08303964A
公开(公告)日：1996-11-22
申请号：JP13277195
申请日：1995-05-02
申请人： KAWASO DENKI KOGYO
发明人： SAKAGUCHI IKUHEI
IPC分类号： G01M3/04 , F27B3/28 , F27D21/00 , G01M3/16
摘要： PURPOSE: To prevent an erroneous operation of an alarm by a method wherein a sensor electrode is sealingly enclosed at a protective cap made of specifically selected metal between it and molten metal so as to protect it. CONSTITUTION: A leakage sensing sensor 16 inserted into and loaded at one location or a plurality of locations in a clearance 15 between a crucible 13 storing molten metal 12 therein and an external container 14 is comprised of an insulator 17 and a metalic protection cap 20 inserted into the insulator and for sealingly enclosing a pair of electrodes 19, 19 in a non-contacted state which are projected from the insulator 17 at its extremity end. As a metal constituting raw material of the protection cap 20, it is selected from metal in which its melting point is higher than an operating temperature, although a melting point of alloy when the molten metal 12 is contacted with the cap to make alloy is set to be higher than an operating temperature. Due to this fact, the protection cap 20 is not melted during an operation of a melting furnace, but protects the electrodes 19 and in turn upon contact of it with the leaked molten metal 12, the metal is rapidly melted under the operating temperature to cause the electrodes 19 to be operated, resulting in that a stable operation and a real time sensing of leakage can be realized.

7. 发明专利

JP2540410B2 失效
公开(公告)号：JP2540410B2
公开(公告)日：1996-10-02
申请号：JP10179092
申请日：1992-03-26
申请人： KAWASO DENKI KOGYO
发明人： SAKAGUCHI IKUHEI , SHIGETA YOSHITERU , KITAURA TOSHUKI
IPC分类号： G01N1/10 , G01N33/20

8. 发明专利

JPH07294337A MULTI-WAVELENGTH RADIATION THERMOMETER 失效
公开(公告)号：JPH07294337A
公开(公告)日：1995-11-10
申请号：JP11037794
申请日：1994-04-25
申请人： KAWASO DENKI KOGYO , SUMITOMO METAL IND
发明人： SHIBATA TOMOO , UEMATSU CHIHIRO , HIRAMOTO KAZUO
IPC分类号： G01J5/08 , G01J5/60
摘要： PURPOSE:To obtain a highly precise thermometer without dependency on temperature and moisture by insulating a spectroscopic filter from an outer air by an insulative housing and keeping the temperature and/or moisture within the housing to be constant. CONSTITUTION:A spectroscopic filter 4 is placed parallel to the transparent plates of windows 2 and 3 and the inside temperature within an insulative housing 1 is kept constant by a temperature keeping means 5. A thermal radiation light entering from the first window 2 is dispersed into different multiple thermal radiaton lights by the filter 4, and after they enters from the second window 3, they are detected in the outside of the housing 1 by a detector 6. Therefore, since the housing 1 encloses the filter 4 therein and keeps the inside temperature to be at a constant temperature regardless of the outside temperature, the filter 4 is hardly affected by the change in ambient temperature accompanying the change of climate as well as the invasion of moisture from the outside, and furthermore stable measurement can be prefomed even under such a measuring environment that ultra micro-dusts fly.

9. 发明专利

JPH07151716A METHOD FOR MEASURING CARBON CONTENT IN MOLTEN STEEL SUCH AS STAINLESS STEEL 失效
公开(公告)号：JPH07151716A
公开(公告)日：1995-06-16
申请号：JP32320193
申请日：1993-11-29
申请人： KAWASO DENKI KOGYO , NIPPON STEEL CORP
发明人： TAKANO HIRONORI , MORISHIGE HIROAKI , SHIGETA YOSHITERU
IPC分类号： G01N25/06 , G01N33/20
摘要： PURPOSE:To make the accurate measurement of carbon content in molten steel possible, by carrying out operation on the basis of a molten steel temperature detected from the molten steel, the solidification temperature of the molten steel and the Cr content in the molten steel. CONSTITUTION:When a probe 1 is immersed in molten steel, a metal cover 17 and metal cap 16 are eluted to be lost, and the molten steel is filled up in a sampling holder 12. The solidification temperature LT of the molten steel solidified in a molten steel solidification chamber 12b is detected by a means 14 for measuring solidification temperature. The temperature MT of a molten steel bath is detected by a means 4 for measuring molten steel temperature, and the Cr content in the molten steel is detected by a Cr sensor 3a, 3b. The activity of Cr in the molten steel is converted into the oxygen potential by a sub-electrode of a sensor element 3a and brought out as the potential difference by a solid electrolyte, as the partial pressure of oxygen equilibrated on three phase interfaces between molten metal/sub-electrode/solid electrolyte, and the electromotive force E is generated between a reference electrode of the element 3a and a molten metal electrode 3b. The C content in the molten steel is computed by an equation (C0-C5 are coefficients). An error of a measured value by the fluctuation of the Cr content does not occur.

10. 发明专利

JPH0712650A RADIATION THERMOMETER DEVICE IN CONTINUOUSLY MEASURING DEVICE FOR TEMPERATURE OF MOLTEN METAL 失效
公开(公告)号：JPH0712650A
公开(公告)日：1995-01-17
申请号：JP18003293
申请日：1993-06-25
申请人： KAWASO DENKI KOGYO , NIPPON STEEL CORP
发明人： SHIMA SHOZO , KONDO TAKUMI , SAKAGUCHI IKUHEI , GOMYO KENICHI , INOUE SHIGERU
IPC分类号： G01J5/02 , G01J5/00 , G01J5/10
摘要： PURPOSE:To improve responsibility, eliminate the production of gas in a radiation thermometer observation channel and make exact measurement by unitizing an endurance component of a remote measurement device and providing a cooling channel and a cooling clamber therein. CONSTITUTION:A radiation thermometer device comprises an inner pipe 7 composed of a remote measurement device 6 and an alumina porcelaneous pipe and an outer pipe 8 made of alumina graphite. In a case where the inner and outer pipes 7, 8 are consumed, the inner pipe 7 and/or the outer pipe 8 can be easily exchanged for the device 6 and the device 6 can be repeatedly used as an endurance component. A refrigerant supply opening 32 such cooling air is provided in an amplificaytion box 24 and supplied refrigerant passes a refrigerant flow passage 33 formed in a heat resistant flexible tube 12 through the inside of the amplification box 24. Thereby heat resistant fiber 11 and an optical system setting part 9 can be always surely cooled and normal temperature measurement is made possible.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式