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1. 发明专利

JPH0643269B2 失效
公开(公告)号：JPH0643269B2
公开(公告)日：1994-06-08
申请号：JP14099086
申请日：1986-06-16
申请人： HARIMA REFRACTORIES CO LTD
发明人： UTO SHIGETOSHI , OSAKI HIROSUKE
IPC分类号： C04B35/043 , C04B35/04

2. 发明专利

JPS6356352A ELECTRICAL HEATING NOZZLE 失效
公开(公告)号：JPS6356352A
公开(公告)日：1988-03-10
申请号：JP20229786
申请日：1986-08-27
申请人： HARIMA REFRACTORIES CO LTD
发明人： NISHIKAWA MASAMI , HIROSE TAKEMI
IPC分类号： B22D11/10 , B22D41/50 , B22D41/60
摘要： PURPOSE:To uniformly generate heat in a nozzle body to prevent solidification of a molten steel by combining high resistance refractories, insulating refractories and resistance exhothermic refractories in such a manner that the current from the solderless electrode disposed to the upper part of the nozzle body does not bypass the two poles thereof. CONSTITUTION:This electrical heating nozzle 1 is made into inside and outside two-layered structure. The parts from an upper port 2 to the top of a molten steel outflow port 3 only in the angle position at each end of one diameter of the nozzle body are made of the insulating refractories 12, 12 from the inside to the outside surface. Only the refractories of the outside layer only in the specified width area on both sides of therespective insulating refractories are substd. with the high resistance refractories 11, 11. The resistance exhothermic refractories 10, 10', therefore, face each other with the insulating refractories 12, 12 in-between and are united and electrically connected to each other at the bottom end of the nozzle where the insulating refractories 12 and the high resistance refractories 11 do not exist. A current course 7 flows mainly in the resistance exhothermic refractories 10' of the inside layer. This method is thus effective for an increase in calorific value and heat accumulation.

3. 发明专利

JPS6356351A ELECTRICAL HEATING NOZZLE 失效
公开(公告)号：JPS6356351A
公开(公告)日：1988-03-10
申请号：JP20229686
申请日：1986-08-27
申请人： HARIMA REFRACTORIES CO LTD
发明人： NISHIKAWA MASAMI , HIROSE TAKEMI
IPC分类号： B22D11/10 , B22D41/50 , B22D41/60
摘要： PURPOSE:To uniformly generate heat in a nozzle body to prevent solidification of a molten steel by disposing solderles electrodes in two upper and lower stages near the upper port of the nozzle body and combining high resistance refractories with resistance exhothermic refractories of an outside periphery and inside periphery so that the currents from the solderless electrodes do not bypass the two poles thereof. CONSTITUTION:This electrical heating nozzle 1 is made into inside and outside two-layered structure consisting of the resistance exhothermic refractories 10', 10 and the layer of the high resistance refractories 11 is provided between the resistance exhothermic refractories 10' and 10 of the inside and outside layer only in the area from the upper port 2 to a molten steel outflow port 3. An annular flange part which parts the resistance exhothermic refractories 10 of the outside layer and encloses the resistance exhothermic refractories 10' of the inside layer is further formed in the uppermost part of the high resistance refractories 11. The outside layer resistance exhothermic refractories 10 and inside layer resistance exhothermic refractories 10' above and below the flange part of the high resistance refractories 11 are, therefore, conducted through the inside layer resistance exhothermic refractories 10'. A current course 7 is obtd. by mounting the solderless electrodes 5, 5 respectively to the top and bottom of the flange part of the high resistance refractories 11. The heat is thus generated uniformly in the nozzle body.

4. 发明专利

JPS6340758A MANUFACTURE OF PHOSPHOROUS GRAPHITE BLENDED REFRACTORIES 失效
公开(公告)号：JPS6340758A
公开(公告)日：1988-02-22
申请号：JP18471986
申请日：1986-08-05
申请人： HARIMA REFRACTORIES CO LTD
发明人： HOSOKAWA KIYOHIRO , MORISHIGE KAZUO
IPC分类号： C04B35/00 , C04B35/04 , C04B35/043 , C04B35/10 , C04B35/103

5. 发明专利

JPS6328336A LITTER POWDER FOR FEEDING CAGE 失效
公开(公告)号：JPS6328336A
公开(公告)日：1988-02-06
申请号：JP17017486
申请日：1986-07-19
申请人： HARIMA REFRACTORIES CO LTD , FURABON KK
发明人： WATANABE HIDEO , KAMIGUCHI SHIGERU
IPC分类号： A01K1/015 , A61L9/00 , C02F1/00

6. 发明专利

JPS6321255A MANUFACTURE OF POWDER FOR BURNING CERAMIC SUBSTRATE 失效
公开(公告)号：JPS6321255A
公开(公告)日：1988-01-28
申请号：JP16271986
申请日：1986-07-10
申请人： HARIMA REFRACTORIES CO LTD , NIPPON STEEL CORP
发明人： MATSUO MASATAKA , MURAKAMI KAKUICHI
IPC分类号： C04B35/64

7. 发明专利

JPS62292254A LINING CONSTRUCTION FOR MOLTEN METAL VESSEL 失效
公开(公告)号：JPS62292254A
公开(公告)日：1987-12-18
申请号：JP13607886
申请日：1986-06-13
申请人： HARIMA REFRACTORIES CO LTD
发明人： YASUDA HISATOSHI
IPC分类号： B22D11/10 , B22D41/02 , C21C1/06 , F27D1/00
摘要： PURPOSE:To prevent the damage of back-up lining and to quicken the break-up work by forming the lining by monolithic refractory containing the prescribed wt% of refractory grain having the specific grain size and also lying release agent between the lining and the back-up lining. CONSTITUTION:On the surface of the back-up lining forming by brick-laying or monolithic refractory, the release agent, such as refractory mortar having

8. 发明专利

JPS6251225B2 失效
公开(公告)号：JPS6251225B2
公开(公告)日：1987-10-29
申请号：JP10568380
申请日：1980-07-31
申请人： HARIMA REFRACTORIES CO LTD
发明人： HOSOKAWA KYOHIRO , TSUCHINARI AKIHIRO
IPC分类号： C04B35/043 , C04B35/04

9. 发明专利

JPS62244557A WORKING METHOD FOR TUNDISH COATING MATERIAL 失效
公开(公告)号：JPS62244557A
公开(公告)日：1987-10-24
申请号：JP8604586
申请日：1986-04-16
申请人： HARIMA REFRACTORIES CO LTD , NIPPON STEEL CORP
发明人： YASUDA HISATOSHI , IDE TOMOFUSA , MATSUOKA TAKASHI , FUJIMOTO SATOSHI
IPC分类号： B22D11/10 , B22D41/02
摘要： PURPOSE:To prevent the melting loss of lining material and occurrence of the burning phenomena with coating material by working MgO quality coating material on a surface of Al2O3-SiO2 quality tundish lining material on the thin layer of high Al2O3 quality mortar. CONSTITUTION:The lining material of Al2O3-SiO2 quality agalmatolite, chamotte, etc., in the tundish is laid as fire brick or monolithic refractory. On the surface of the lining material, the high Al2O3 quality mortar having >65% Al2O3, in which is desirable to be about >=70% Al2O3, and about 2-10mm thickness, in which is desirable to be about 3-6mm, is worked as the thin layer by troweling. Next, the MgO quality coating material is coated on the above thin layer. The above high alumina quality mortar is prepared by bauxite, electromelting alumina, etc., as an aggregate and on the other hand, the above MgO quality coating material is obtd. by natural or artificial magnesia as the main composition, by adding the binding agent, such as a little quantity of phosphate, etc.

10. 发明专利

JPS62230678A MENDING MATERIAL FOR REFRACTORIES 失效
公开(公告)号：JPS62230678A
公开(公告)日：1987-10-09
申请号：JP7137486
申请日：1986-03-31
申请人： HARIMA REFRACTORIES CO LTD , NIPPON STEEL CORP
发明人： MATSUMOTO OSAMI , OTSUKA TOSHIHIRO , KOMATSU SHIN
IPC分类号： C04B35/66

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