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1. 发明专利

DE69210503T3 未知
公开(公告)号：DE69210503T3
公开(公告)日：1999-12-23
申请号：DE69210503
申请日：1992-08-19
申请人： KAWASAKI STEEL CO
发明人： HAYAKAWA YASUYUKI , NISHIIKE UJIHIRO , FUKUDA BUNJIRO , YAMADA MASATAKA , IIDA YOSHIAKI , TAKEUCHI FUMIHIKO , KOMATSUBARA MICHIRO
IPC分类号： C21D8/12 , C22C38/00 , C22C38/60 , H01F1/16
摘要： A method of producing a grain oriented silicon steel sheet is adapted to lower the iron loss. A silicon steel slab, containing about 2.0 to 4.0 weight % of Si and an inhibitor-forming amount of S, or Se, or both, is hot rolled. After the hot rolled steel sheet is annealed when necessary, the steel sheet is cold rolled into a cold rolled steel sheet having a final thickness by performing cold rolling either one time or a plurality of times with intermediate annealing therebetween, the cold rolled steel sheet then being subjected to decarburization, coating of the surface of the steel sheet with an annealing separation agent mainly comprising MgO, secondary recrystallization annealing, and purification annealing. In the cold rolling step, an oxide layer exists on the surface of the steel sheet. Specifically, in the cold rolling step, rolling oil is supplied only at the entrance of the rolling mill used, and an oxide layer having a thickness of about 0.05 to 5 mu m is generated. Or, an outer oxide layer of an oxide layer structure generated on the surface of the steel sheet after hot rolling or intermediate annealing, is removed, and an inner oxide layer of a thickness of about 0.05 to 5 mu m is maintained on the surface, the resultant steel sheet then being subjected to cold rolling.

2. 发明专利

DE69210503T2 未知
公开(公告)号：DE69210503T2
公开(公告)日：1996-09-12
申请号：DE69210503
申请日：1992-08-19
申请人： KAWASAKI STEEL CO
发明人： HAYAKAWA YASUYUKI , NISHIIKE UJIHIRO , FUKUDA BUNJIRO , YAMADA MASATAKA , IIDA YOSHIAKI , TAKEUCHI FUMIHIKO , KOMATSUBARA MICHIRO
IPC分类号： C21D8/12 , C22C38/00 , C22C38/60 , H01F1/16
摘要： A method of producing a grain oriented silicon steel sheet is adapted to lower the iron loss. A silicon steel slab, containing about 2.0 to 4.0 weight % of Si and an inhibitor-forming amount of S, or Se, or both, is hot rolled. After the hot rolled steel sheet is annealed when necessary, the steel sheet is cold rolled into a cold rolled steel sheet having a final thickness by performing cold rolling either one time or a plurality of times with intermediate annealing therebetween, the cold rolled steel sheet then being subjected to decarburization, coating of the surface of the steel sheet with an annealing separation agent mainly comprising MgO, secondary recrystallization annealing, and purification annealing. In the cold rolling step, an oxide layer exists on the surface of the steel sheet. Specifically, in the cold rolling step, rolling oil is supplied only at the entrance of the rolling mill used, and an oxide layer having a thickness of about 0.05 to 5 mu m is generated. Or, an outer oxide layer of an oxide layer structure generated on the surface of the steel sheet after hot rolling or intermediate annealing, is removed, and an inner oxide layer of a thickness of about 0.05 to 5 mu m is maintained on the surface, the resultant steel sheet then being subjected to cold rolling.

3. 发明专利

DE69210503D1 未知
公开(公告)号：DE69210503D1
公开(公告)日：1996-06-13
申请号：DE69210503
申请日：1992-08-19
申请人： KAWASAKI STEEL CO
发明人： HAYAKAWA YASUYUKI , NISHIIKE UJIHIRO , FUKUDA BUNJIRO , YAMADA MASATAKA , IIDA YOSHIAKI , TAKEUCHI FUMIHIKO , KOMATSUBARA MICHIRO
IPC分类号： C21D8/12 , C22C38/00 , C22C38/60 , H01F1/16
摘要： A method of producing a grain oriented silicon steel sheet is adapted to lower the iron loss. A silicon steel slab, containing about 2.0 to 4.0 weight % of Si and an inhibitor-forming amount of S, or Se, or both, is hot rolled. After the hot rolled steel sheet is annealed when necessary, the steel sheet is cold rolled into a cold rolled steel sheet having a final thickness by performing cold rolling either one time or a plurality of times with intermediate annealing therebetween, the cold rolled steel sheet then being subjected to decarburization, coating of the surface of the steel sheet with an annealing separation agent mainly comprising MgO, secondary recrystallization annealing, and purification annealing. In the cold rolling step, an oxide layer exists on the surface of the steel sheet. Specifically, in the cold rolling step, rolling oil is supplied only at the entrance of the rolling mill used, and an oxide layer having a thickness of about 0.05 to 5 mu m is generated. Or, an outer oxide layer of an oxide layer structure generated on the surface of the steel sheet after hot rolling or intermediate annealing, is removed, and an inner oxide layer of a thickness of about 0.05 to 5 mu m is maintained on the surface, the resultant steel sheet then being subjected to cold rolling.

4. 发明专利

CA2076483C METHOD OF PRODUCING GRAIN ORIENTED SILICON STEEL SHEET HAVING LOW IRON LOSS 未知
公开(公告)号：CA2076483C
公开(公告)日：1997-10-14
申请号：CA2076483
申请日：1992-08-20
申请人： KAWASAKI STEEL CO
发明人： NISHIIKE UJIHIRO , HAYAKAWA YASUYUKI , IIDA YOSHIAKI , YAMADA MASATAKA , FUKUDA BUNJIRO , KOMATSUBARA MICHIRO , TAKEUCHI FUMIHIKO
IPC分类号： C21D8/12 , C22C38/00 , C22C38/60 , H01F1/16
摘要： A method of producing a grain oriented silicon steel sheet is adapted to lower the iron loss. A silicon steel slab, containing about 2.0 to 4.0 weight % of Si and an inhibitor-forming amount of S, or Se, or both, is hot rolled. After the hot rolled steel sheet is annealed when necessary, the steel sheet is cold rolled into a cold rolled steel sheet having a final thickness by performing cold rolling either one time or a plurality of times with intermediate annealing therebetween, the cold rolled steel sheet then being subjected to decarburization, coating of the surface of the steel sheet with an annealing separation agent mainly comprising MgO, secondary recrystallization annealing, and purification annealing. In the cold rolling step, an oxide layer exists on the surface of the steel sheet. Specifically, in the cold rolling step, rolling oil is supplied only at the entrance of the rolling mill used, and an oxide layer having a thickness of about 0.05 to 5 .mu.m is generated. Or, an outer oxide layer of an oxide layer structure generated on the surface of the steel sheet after hot rolling or intermediate annealing, is removed, and an inner oxide layer of a thickness of about 0.05 to 5 .mu.m is maintained on the surface, the resultant steel sheet then being subjected to cold rolling.

5. 发明专利

CA2076483A1 METHOD OF PRODUCING GRAIN ORIENTED SILICON STEEL SHEET HAVING LOW IRON LOSS 未知
公开(公告)号：CA2076483A1
公开(公告)日：1993-02-21
申请号：CA2076483
申请日：1992-08-20
申请人： KAWASAKI STEEL CO
发明人： HAYAKAWA YASUYUKI , NISHIIKE UJIHIRO , FUKUDA BUNJIRO , YAMADA MASATAKA , IIDA YOSHIAKI , TAKEUCHI FUMIHIKO , KOMATSUBARA MICHIRO
IPC分类号： C21D8/12 , C22C38/00 , C22C38/60 , H01F1/16
摘要： A method of producing a grain oriented silicon steel sheet is adapted to lower the iron loss. A silicon steel slab, containing about 2.0 to 4.0 weight % of Si and an inhibitor-forming amount of S, or Se, or both, is hot rolled. After the hot rolled steel sheet is annealed when necessary, the steel sheet is cold rolled into a cold rolled steel sheet having a final thickness by performing cold rolling either one time or a plurality of times with intermediate annealing therebetween, the cold rolled steel sheet then being subjected to decarburization, coating of the surface of the steel sheet with an annealing separation agent mainly comprising MgO, secondary recrystallization annealing, and purification annealing. In the cold rolling step, an oxide layer exists on the surface of the steel sheet. Specifically, in the cold rolling step, rolling oil is supplied only at the entrance of the rolling mill used, and an oxide layer having a thickness of about 0.05 to 5 mu m is generated. Or, an outer oxide layer of an oxide layer structure generated on the surface of the steel sheet after hot rolling or intermediate annealing, is removed, and an inner oxide layer of a thickness of about 0.05 to 5 mu m is maintained on the surface, the resultant steel sheet then being subjected to cold rolling.

6. 发明专利

JP2002138356A GRANULAR INORGANIC FIBER WOOL AND METHOD FOR PRODUCING THE SAME 失效
公开(公告)号：JP2002138356A
公开(公告)日：2002-05-14
申请号：JP2000326981
申请日：2000-10-26
申请人： KAWASAKI STEEL CO
发明人： NAGAO TOMOKAZU , TAKAGI MASATO , YAMADA MASATAKA , SATO MASAAKI , ASAO KAZUO
IPC分类号： C03B37/01 , C03C25/10 , D01F9/08 , D04H1/4209 , D06M15/53 , D04H1/42
摘要： PROBLEM TO BE SOLVED: To obtain granular inorganic fiber wool suitable as a construction/ industrial material such as a thermal insulating material, packing material or sound-absorbing material, particularly suitable for a blowing method applied to e.g. a space in a house between the ceiling and the roof, and to provide a method for producing such granular inorganic fiber wool. SOLUTION: This granular inorganic fiber wool is obtained by processing a melted inorganic material into fibers followed by collecting them into wool and then forming a granulation, wherein, during the process until cooling the inorganic fibers, a water-soluble polymer solution is made to adhere to the inorganic fibers. The granular wool thus obtained has a water-soluble polymer pickup of 1-2 mass% based on the inorganic fibers and a bulk density of preferably

7. 发明专利

JP2002012440A MANUFACTURING METHOD OF ROCK WOOL 失效
公开(公告)号：JP2002012440A
公开(公告)日：2002-01-15
申请号：JP2000192236
申请日：2000-06-27
申请人： KAWASAKI STEEL CO , KAWATETSU ROCK FIBER KK
发明人： TAKAHASHI KATSUNORI , KUMAGAI MASATO , YAMADA MASATAKA
IPC分类号： C03B37/05 , D01D5/08 , D01F9/08
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of rock wool which can recover the fiber excellent in quality without converting a existing facility and removing work of a shot. SOLUTION: The manufacturing method of the rock wool is that a molten material of contents adjusted blast furnace slag which is used as a main material is poured on a side surface of a cylinder body revolving with high speed with a horizontal axis, and by jetting air along the side surface in parallel direction to the axis, the molten material is scattered with centrifugal force and the air and is formed into a linear body, surface temperature of the molten material is measured on the side surface of the cylinder body, and the temperature of the molten material poured on the side surface is controlled so that the measured value is kept in the temperature range which is set previously.

8. 发明专利

JP2002012439A MANUFACTURING METHOD OF ROCK WOOL 失效
公开(公告)号：JP2002012439A
公开(公告)日：2002-01-15
申请号：JP2000192234
申请日：2000-06-27
申请人： KAWASAKI STEEL CO , KAWATETSU ROCK FIBER KK
发明人： TAKAHASHI KATSUNORI , KUMAGAI MASATO , YAMADA MASATAKA
IPC分类号： C03B37/04 , C03B37/05 , D01F9/08
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of rock wool by which thinning a fiber diameter and restraining generation of a part of non-fibered are accomplished at the same time without converting the existing device, and not only a light board excellent in heat insulating characteristics but also a board having different heat insulating characteristics corresponding to use cane be made distinctively. SOLUTION: The manufacturing method of the rock wool is that a molten material of contents adjusted blast furnace slag is poured on a side face of a cylinder body revolving with high speed with a horizontal axis, and by jetting air along the side surface in parallel direction to the axis, the molten material is fly off with centrifugal force and the air and formed into a linear body. According to a thermal conductivity of the manufacturing rock wool, a relation between SiO2 concentration of the molten material and temperature of the molten material on the surface of the cylinder body is set, and operation is done according to the relation.

9. 发明专利

JPH05186832A PRODUCTION OF GRAIN-ORIENTED SILICON STEEL SHEET REDUCED IN IRON LOSS 失效
公开(公告)号：JPH05186832A
公开(公告)日：1993-07-27
申请号：JP19133492
申请日：1992-06-26
申请人： KAWASAKI STEEL CO
发明人： HAYAKAWA YASUYUKI , TAKEUCHI FUMIHIKO , KOMATSUBARA MICHIRO , YAMADA MASATAKA , IIDA YOSHIAKI , NISHIIKE UJIHIRO , FUKUDA BUNJIRO
IPC分类号： C21D8/12 , C22C38/00 , C22C38/60 , H01F1/16
摘要： PURPOSE:To reduce the iron loss of a grain-oriented silicon steel sheet by an industrially advantageous method. CONSTITUTION:A slab of a silicon steel which has a composition containing, by weight, 2.0-4.0% Si and further containing either or both of S and Se as inhibitor forming components is hot-rolled, cold-rolled once or cold-rolled twice or more while process-annealed between the cold rolling stages so as to be formed to the final sheet thickness, and subjected to decarbur-annealing, and then, the resulting sheet is subjected, after the application of a separation agent at annealing composed essentially of MgO to the surface of the steel sheet, to secondary recrystallization annealing and to purification annealing. At the time of producing a grain-oriented silicon steel sheet by a series of stages mentioned above, cold rolling is performed while allowing an oxide layer to be present on the surface of the steel sheet.

10. 发明专利

JPS61281820A METHOD FOR CONTROLLING COMBUSTION OF CONTINUOUS HEATING FURNACE 失效
公开(公告)号：JPS61281820A
公开(公告)日：1986-12-12
申请号：JP12310185
申请日：1985-06-06
申请人： KAWASAKI STEEL CO
发明人： YAMADA MASATAKA
IPC分类号： C21D1/52 , C21D9/00
摘要： PURPOSE:To execute stable control even if the billets having the heating load larger than the heating load of the billets in the charging side zone exist in said zone by processing specifically the calculated set furnace temp. value in the stage of executing the titled control in accordance with the optimum heating up curve of the billets to be heated from charging until extraction. CONSTITUTION:The present temp. of the billets existing in the corresponding zone and the optimum temp. of the present time determined by the optimum heating up curve for each billet are compared in a titled method for setting the furnace temp. in each zone of a heating furnace in accordance with the above-mentioned optimum heating up curve. The set furnace temp. value is then calculated in the set period. The future billet temp. in the set period from the present time is repeatedly estimated by the simulation using such set furnace temp. value and by taking the heating load of the billets existing in the zone nearer the charging side than the corresponding zone into consideration. Whether contradiction may arise in future in the above-mentioned set furnace temp. value of the corresponding zone or not is discriminated from the estimated temp. and the set furnace temp. value is corrected if there is the contradiction.

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