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1. 发明专利

JPS6250070A SLIDING NOZZLE DEVICE HAVING SEALING MECHANISM 失效
公开(公告)号：JPS6250070A
公开(公告)日：1987-03-04
申请号：JP19135085
申请日：1985-08-29
申请人： NIPPON STEEL CORP , KUROSAKI REFRACTORIES CO
发明人： OWADA YASUNORI , KASHIO SHIGEKI , TSUKIJI HIDEO , MIZOBE ARIHITO
IPC分类号： B22D41/08 , B22D37/00 , B22D41/22 , B22D41/32 , B22D41/34 , B22D41/40 , B22D41/42
摘要： PURPOSE:To thoroughly prevent the penetration of air from a nozzle part by forming the space including the sliding surface of a nozzle plate and the joint part between an immersion nozzle and nozzle plate as a hermetic chamber shut off from the external air. CONSTITUTION:A sliding nozzle device is formed of a stationary metallic flask 1 for supporting an upper stationary plate 7, an attachable and detachable sealing metallic flask 2 and a metallic holder 3 for supporting a lower stationary plate 9. The holder 3 seals and joins an O-ring fitted to a hollow groove 3a at the outside peripheral end face to a sealing wall 2b in an aperture 2a of the flask 2. A sealing ring 4 for sealing the periphery at the top end of the immersion nozzle 10 is connected to the holder 3 to form the hermetic chamber in the flask 1 including the upper part of the nozzle 10. An inert gas is introduced into such chamber. The penetration of the air from the nozzle part is thereby thoroughly prevented.

2. 发明专利

JPH0679442A STRUCTURE FOR LINING REFRACTORY ON BOTTOM PART IN LADLE 失效
公开(公告)号：JPH0679442A
公开(公告)日：1994-03-22
申请号：JP23732192
申请日：1992-09-04
申请人： KUROSAKI REFRACTORIES CO , NIPPON STEEL CORP
发明人： HATTA TOKUAKI , MIZOBE ARIHITO , SUEKAWA YUKIHIRO , TAKAYAMA AKIHIKO , HANAGIRI SEIJI , MIYAGAWA YOSHIKAZU
IPC分类号： B22D41/02 , F27B3/14 , F27D1/10
摘要： PURPOSE:To achieve monolithic lining, labor saving and economical service life to the lining of a large capacity ladle bottom by lining the monolithic refractory in each space and if necessary, while combining refractory blocks with different kinds of monolithic refractory, etc. CONSTITUTION:As a means for making the bottom part of the large capacity ladle monolithic refractory, the refractory blocks 1, 2 are linearly and parallel arranged on the ladle bottom in the suitable interval. Then, the refractory blocks are arranged so that the positions fixed to an iron shell at the bottom part, such as tuyere part for fitting nozzle, porous plug tuyere part 5, and molten metal hitting part 10 do not coexist and the positions fixed to the iron shell at the bottom part do not mutually coexist, in the same space divided with these block groups parallel arranged, and the monolithic refractory 3 in each space and if necessary, while combining the refractory blocks 1, 2, the different kinds of monolithic refractory, etc., is lined. The lining can be made monolithic and W labor saved and the development of the crack at the molten metal hitting part can be prevented.

3. 发明专利

JPH02291108A VACUUM CHUCK FOR RESIST COATING APPARATUS AND RESIST COATER 失效
公开(公告)号：JPH02291108A
公开(公告)日：1990-11-30
申请号：JP11159489
申请日：1989-04-28
申请人： NIPPON STEEL CORP , KUROSAKI REFRACTORIES CO
发明人： KOTABE NORIO , INAYOSHI MASATO , MIZOBE ARIHITO
IPC分类号： B05C11/08 , H01L21/027 , H01L21/312
摘要： PURPOSE:To execute a resist coating operation by which a deviation of a film thickness is small and to reduce a problem that a wafer is detached during its turning operation by a method wherein a suction face coming into contact with the wafer is formed of a ceramic and at least one part between the suction face and a connection part to a shaft is formed of a material whose heat conductivity is lower than that of the ceramic. CONSTITUTION:A vacuum chuck 1 has a nearly T-shaped cross-sectional shape which is composed of a tubular shaft part 2 connected to a shaft and of a disk-shaped support part 3 formed at the upper part of the shaft part. The support part 3 and the outer- face side of the shaft part 2 are formed collectively by using a ceramic C. On the other hand, the inner-face side of the shaft part 2 is formed of a material 1 whose heat conductivity is lower than that of the ceramic. This material as a tubular heat- insulating material 7 is inserted into a member formed of the ceramic C. Accordingly, heat which is going to move from the side of a motor to a suction face can be reduced; in addition, the heat which has reached the suction face of the vacuum chuck can be moved and diffused quickly to the whole surface of the suction face because the heat conductivity of the ceramic constituting the suction face of the vacuum chuck is comparatively high.

4. 发明专利

JPH1157989A PLATE BRICK 失效
公开(公告)号：JPH1157989A
公开(公告)日：1999-03-02
申请号：JP21533297
申请日：1997-08-08
申请人： KUROSAKI REFRACTORIES CO
发明人： MIZOBE ARIHITO , HARUKI KOUICHI
IPC分类号： B22D41/28
摘要： PROBLEM TO BE SOLVED: To eliminate the warp of a brick at the time of using and to reduce the surface wearing at a stroke position and the chip of a nozzle hole edge part by arranging a recessed surface surrounding the nozzle hole on the sliding surface of the brick. SOLUTION: The nozzle hole 2 is arranged on the sliding surface 1 of the plate brick 10, and the recessed surface 3 is arranged around this nozzle hole 2. In the case of being too shallow of the recessed surface 3, the relaxation of compressive stress caused by the thermal expansion at the time of using is unsufficient and the effect to achieve the target is reduced. The depth of the recessed surface 3 is desirable to be the depth, in which the stress developed to the surrounding of the nozzle hole is relaxed and gap between the surfaces is eliminated or reduced even in the case of expanding in the thickness direction at the surroundings of the inner hole in the plate at the time of using. This condition is decided with the coefficient of thermal expansion of a material used to the plate brick and the used temp., but the depth of the recessed surface is desirable to be 0.1-2% of the thickness of the plate brick from the coefficient of thermal expansion of alumina, zirconia, magnesia, silica or carbon, etc., as the material generally used.

5. 发明专利

JPH09126405A REFRACTORY PROTECTIVE BLOCK AND BOILER PROTECTIVE WALL USING THE SAME 失效
公开(公告)号：JPH09126405A
公开(公告)日：1997-05-16
申请号：JP23116796
申请日：1996-08-30
申请人： MITSUBISHI HEAVY IND LTD , KUROSAKI REFRACTORIES CO , KUROSAKI ROKOGYO KK
发明人： HATTA TOKUAKI , NAKAJIMA HIROMI , IMAMURA SHIGERU , MIZOBE ARIHITO , ISHIMATSU SHIGEKI , TACHIKAWA AKIHIRO
IPC分类号： F23M5/00 , F22B37/10
摘要： PROBLEM TO BE SOLVED: To provide a greater durability refractory protective block and a boiler protective wall structure which is not destroyed even when a heat exchanger is more expanded than a refractory is upon temperature rise and cooling being repeated, and which ensures distorsion dispersion upon expansion and construction being repeated. SOLUTION: A refractory protective block 17 is provided which protects heat-exchange means to which a tube 10 and a fin 11 are connected. In the refractory protective block 17, there is provided a recess 14 which has a complementary internal surface configuration corresponding to that of the heat exchange means and in which a protrusion 12 provided on the tube 10 is fitted and accommodated. A pair of the protrusions 12 provided on the two adjacent tubes 10 in the heat exchange means are provided oppositely to each other.

6. 发明专利

JPS62192251A ROTARY TYPE FLOW RATE CONTROL DEVICE FOR MOLTEN METAL RECEIVING VESSEL 失效
公开(公告)号：JPS62192251A
公开(公告)日：1987-08-22
申请号：JP3446086
申请日：1986-02-18
申请人： KUROSAKI REFRACTORIES CO
发明人： MIZOBE ARIHITO , NISHIMURA TAKAHIRO , FUNATO JUNICHI
IPC分类号： B22D37/00 , B22D41/26
摘要： PURPOSE:To improve workability and to make a device compact and higher in performance by directly mounting a driving device which rotates a plate of a sliding nozzle to a metallic flask for holding said plate. CONSTITUTION:After an upper nozzle 3 is set via an upper plate flask 5 provided to a bottom wall 1, an upper plate 4 is set to an upper plate flask 5 and a lower plate 7 is set to a rotor 8. The metallic flask 14 for opening and closing is then turned around a hinge 15 to close the lower plate 7 and the upper plate 4 so that both plates approach each other. A hydraulic motor 12 is driven in the stage of pouring to slide the plate 7 via the rotation of the rotor to control the rate of pouring while a nozzle hole is adjusted. The operation of the device is made easier and the device itself is made compact by the above-mentioned constitution.

7. 发明专利

JPH1164198A TENSILE STRENGTH TESTING METHOD AND DEVICE BY CYLINDRICAL TEST PIECE 失效
公开(公告)号：JPH1164198A
公开(公告)日：1999-03-05
申请号：JP22540997
申请日：1997-08-21
申请人： KUROSAKI REFRACTORIES CO
发明人： MORIKAWA KATSUMI , MIZOBE ARIHITO , YO CHIYUUTATSU , HIRAIWA YOSHITAKA
IPC分类号： G01N3/00 , G01N3/08
摘要： PROBLEM TO BE SOLVED: To dispense with a special sealing means and uniformly pressurize the inner surface of a cylindrical test piece without leaking a pressurizing medium by arranging a highly elastic body in the bore of the test piece, and pressurizing it from both upper and lower end surface directions. SOLUTION: A cylindrical test piece 3 is placed on a pedestal 1 through a spacer 2, and a bore pressurizing jig is arranged in the bore thereof. The bore pressurizing jig comprises a disc-like highly elastic body 5 placed on a lower pressurizing plate 4, and an upper pressurizing plate 6 placed further thereon. The highly elastic body 5 is pressurized through the upper and lower pressurizing plates 6, 4 by lowering an Amsler head 7, and the tensile strength on the inner surface of the cylindrical test piece 3 is calculated from the load when the cylindrical test piece 3 is broken. The spacer 2 is used for holding the cylindrical, test piece 3, and can be removed just after the pressurization start. Thus, an uniform pressure can be added to the cylindrical test piece 3, and a precise measurement result can be provided.

8. 发明专利

JPH09253835A METHOD FOR FIXING SLIDING GATE REFRACTORY 失效
公开(公告)号：JPH09253835A
公开(公告)日：1997-09-30
申请号：JP6322996
申请日：1996-03-19
申请人： NISSHIN STEEL CO LTD , KUROSAKI REFRACTORIES CO
发明人： HAGIWARA SHINJI , GOROMARU TADASHI , MIZOBE ARIHITO , HARADA KENICHI , KIKUKAWA SHIYOUJI
IPC分类号： B22D41/34
摘要： PROBLEM TO BE SOLVED: To prevent the development of crack in the inner part of each sliding gate refractory, maintain fixed force of each sliding gate refractory and restrain the enlargement of vertical crack in the refractory even if a metallic frame expands at the time of using this refractory to the bottom part of a molten metal receiving vessel. SOLUTION: In this fixing method of this sliding gate refractory the temp. of each metallic frame 2a, 2b at the time of fixing each sliding gate refractory 1a, 1b is made to in the temp. range of 140-200 deg.C whose range is not affected to the refractory strength in each refractory 1a, 1b developed caused by the shrinkage of each metallic frame 2a, 2b to prevent the cracking of each refractory 1a, 1b.

9. 发明专利

JPH07248195A CONSTRUCTING METHOD OF WATER TUBE WALL 失效
公开(公告)号：JPH07248195A
公开(公告)日：1995-09-26
申请号：JP932694
申请日：1994-01-31
申请人： KUROSAKI REFRACTORIES CO , MITSUBISHI HEAVY IND LTD
发明人： TACHIKAWA AKIHIRO , MIZOBE ARIHITO , ISHIMATSU SHIGEKI , SEKI KAZUNORI , HATTA TOKUAKI
IPC分类号： F23M5/08 , F22B37/24 , F23M5/00 , F27D1/12 , F27D1/16 , F28F1/00
摘要： PURPOSE:To shorten sharply a term of works at a construction site and also to enable attainment of a water tube wall of a uniform and compact structure being free from porosity by a method wherein the water tube wall prepared by covering a water-tube metallic material with a refractory is manufactured as divided bodies of a required unit and constructed at the site by assembling and joining. CONSTITUTION:When divided bodies 11 are brought to a construction site and assembled and joined together by welding at a prescribed position so as to construct a water tube wall, each divided body 11 is constructed by applying internal castable refractory 3 on one surface of a water-tube metallic material 12 having water tubes 1 and fins 2 provided integrally and also by applying an external heat-insulating material 5 and a furnace body shell 6 on the other surface thereof. In the water-tube metallic material 12, on the occasion, an exposed part of the water tube 1 and the fin 2 is left at a length of about 50 to 100mm in the width at the end part, as a part wherein the castable refractory is not yet applied, and it is provided as a place for welding. The divided bodies 11 are assembled and joined together by the welding 4 at the site and the exposed part is covered with the castable refractory after joining.

10. 发明专利

JPH07190749A RESIDUAL THICKNESS DETECTING STRUCTURE OF REFRACTORY FOR GAS BLOWING-IN 失效
公开(公告)号：JPH07190749A
公开(公告)日：1995-07-28
申请号：JP33099193
申请日：1993-12-27
申请人： KUROSAKI REFRACTORIES CO
发明人： MIZOBE ARIHITO , IWATA TOSHIHIKO , HARA SHUICHI , OUCHI TATSUYA
IPC分类号： G01K13/00 , C21C7/072 , F27D1/00 , F27D3/16 , F27D21/00 , G01B21/08
摘要： PURPOSE:To provide a residual thickness detecting structure which can be used without exchanging a thermocouple to detect the dissolution loss amount of a refractory for gas blowing-in such as a porous plug, and also has a high accuracy. CONSTITUTION:When the residual thickness of a refractory 4 for gas blowing-in installed to the tuyere of a molten metal container 1 is calculated by the temperature detection by a thermocouple 7 of the refractory 4, the thermocouple 7 is installed to a receiving brick 3 to maintain and confine the refractory 4 toward the molten metal container 1 side, and the temperature at the end face at the outer side of the furnace of the refractroy 4 made possible to be detected by the thermocouple 7. And the residual thickness of the refractory 4 for gas blowing-in is calculated by using the relation between the surface temperature produced and calculated beforehand, and the residual thickness.

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