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2. 发明专利

CA1153560A PRODUCTION OF CARBON STEEL AND LOW-ALLOY STEEL WITH BOTTOM BLOWING BASIC OXYGEN FURNACE 未知
公开(公告)号：CA1153560A
公开(公告)日：1983-09-13
申请号：CA352347
申请日：1980-05-21
申请人： SUMITOMO METAL IND
发明人： MARUKAWA KATSUKIYO , YAMAZAKI ISAO , ANEZAKI SYOJI , KAJIMOTO TSUTOMU , TOZAKI YASUYUKI , UEDA MINORU , HIRATA TAKEYUKI , MASUDA SEIICHI , HIROKI NOBUYOSHI
IPC分类号： C21C5/35 , C21C5/34 , F27D3/16
摘要： A method of producing carbon steel and low-alloy steel in a basic oxygen furnace is disclosed, in which a blow of the bottom-blowing gas predominantly comprised of carbon dioxide is introduced into a molten metal through at least one nozzle provided in the bottom or side wall of said basic oxygen furnace at least partly during the period of time from the beginning of blowing to the tapping of the melt, and the flow rate of the bottom-blowing gas is 1/200 - 9/200 the rate of oxygen impinged upon the melt through a lance. A steel making apparatus adapted to carry out the above-mentioned novel method of producing steel is also disclosed, which comprises, in combination, a furnace permitting both top-blowing of pure oxygen and bottom-blowing of a gas mainly composed of carbon dioxide, means for collecting the waste gas generated from the furnace, means for mixing the waste gas with oxygen and/or steam, means for burning the mixture thereof, and means for injecting the resulting combustion gas into the molten metal within said furnace.

3. 发明专利

DE3019899A1 未知
公开(公告)号：DE3019899A1
公开(公告)日：1980-12-04
申请号：DE3019899
申请日：1980-05-23
申请人： SUMITOMO METAL IND
发明人： MARUKAWA KATSUKIYO , YAMAZAKI ISAO , ANEZAKI SYOJI , KAJIMOTO TSUTOMU , TOZAKI YASUYUKI , UEDA MINORU , HIRATA TAKEYUKI , MASUDA SEIICHI , HIROKI NOBUYOSHI
IPC分类号： C21C5/35 , C21C5/28

5. 发明专利

IN152953B PRODUCTION OF CARBON STEEL AND LOW-ALLOY STEEL WITH BOTTOM BLOWING BASIC OXYGEN FURNANCE 未知
公开(公告)号：IN152953B
公开(公告)日：1984-05-05
申请号：IN714CA1980
申请日：1980-06-20
申请人： SUMITOMO METAL IND
发明人： MARUKAWA KATSUKIYO , YAMAZAKI ISAO , ANEZAKI SYOJI , KAJIMOTO TSUTOMU , TOZAKI YASUYUKI , UEDA MINORU , HIRATA TAKEYUKI , MASUDA SEIICHI , HIROKI NOBUYOSHI
IPC分类号： C21C5/32 , C21C5/35 , C21C5/30

6. 发明专利

AU525023B2 CARBON STEEL AND LOW ALLOY STEEL WITH BOTTOM BLOWING B.O.F. 未知
公开(公告)号：AU525023B2
公开(公告)日：1982-10-14
申请号：AU5859080
申请日：1980-05-20
申请人： SUMITOMO METAL IND
发明人： MARUKAWA KATSUKIYO , YAMAZAKI ISAO , ANEZAKI SYOJI , KAJIMOTO TSUTOMU , TOZAKI YUSUYUKI , UEDA MINORU , HIRATA TAKEYUKI , MASUDA SEIICHI , HIROKI NOBUYOSHI
IPC分类号： C21C5/35 , C21C5/32 , C21C5/34 , C21C5/42 , C21C5/46

7. 发明专利

FR2457325A1 未知
公开(公告)号：FR2457325A1
公开(公告)日：1980-12-19
申请号：FR8011588
申请日：1980-05-23
申请人： SUMITOMO METAL IND
发明人： MARUKAWA KATSUKIYO , YAMAZAKI ISAO , ANEZAKI SYOJI , KAJIMOTO TSUTOMU , TOZAKI YASUYUKI , UEDA MINORU , HIRATA TAKEYUKI , MASUDA SEIICHI , HIROKI NOBUYOSHI
IPC分类号： C21C5/35 , C21C5/30

8. 发明专利

IT8067813D0 未知
公开(公告)号：IT8067813D0
公开(公告)日：1980-05-23
申请号：IT6781380
申请日：1980-05-23
申请人： SUMITOMO METAL IND , GIAPPONE
发明人： YAMAZAKI KATSUKIYO MARUKAWA IS , KAJIMOTO SYOJI ANEZAKI TSUTOMU , UEDA YASUYUKI TOZAKI MINORU , MASUDA TAKEYUKI HIRATA SEIICHI , HIROKI NOBUYOSHI
IPC分类号： C21C5/35 , C21B

9. 发明专利

JPS60204817A METHOD FOR PREVENTING CORROSION OF LINING MATERIAL OF TORPEDO CAR FOR PRETREATING MOLTEN IRON 失效
公开(公告)号：JPS60204817A
公开(公告)日：1985-10-16
申请号：JP5839484
申请日：1984-03-28
申请人： SUMITOMO METAL IND , SHINAGAWA REFRACTORIES CO
发明人： IKEMIYA HIROYUKI , HIROKI NOBUYOSHI , TAKAHASHI AKIRA , YORITA EIICHI , FUJINAMI MITSUHIDE , FUJIWARA TEIICHI , YOSHIMURA YUUJI
IPC分类号： C21C1/06 , F27D1/00
摘要： PURPOSE:To prevent the corrosion of a lining material without deteriorating refining characteristics by adding alumina and/or lime to molten slag to increase the viscosity of the slag. CONSTITUTION:When molten iron is desulfurized and dephosphorized with a sodium-base treating agent, 2-30wt% powdery alumina and/or 2-10wt% powdery lime is added to molten slag basing on 100wt% molten slag. The viscosity of the molten slag is increased to inhibit the penetration of the slag into the structure of a lining material and to reduce the rate of corrosion. Bauxite, sintered alumina or the like is used as said alumina, and limestone, calcined lime or the like as said lime.

10. 发明专利

JPS59147745A Treatment of molten metal 失效
标题翻译：金属处理
公开(公告)号：JPS59147745A
公开(公告)日：1984-08-24
申请号：JP2079683
申请日：1983-02-10
申请人： Sumitomo Metal Ind Ltd
发明人： HIROKI NOBUYOSHI , YAMAZAKI ISAO , TOZAKI YASUYUKI , MORI TOSHIHIRO
IPC分类号： C21C7/072 , B22D1/00
CPC分类号： B22D1/00
摘要： PURPOSE:To prevent a molten metal from absorbing nitrogen in air and splashing to the outside of a ladle in the stage of blowing a flux into the molten metal in the ladle and performing refining such as desulfurization by sealing hermetically the ladle with a cover body having a specific shape and refining the molten metal by desulfurization. CONSTITUTION:A molten metal 4 such as molten iron, molten steel or the like is put into a ladle 2, and a lance is immersed therein to blow a flux into the molten metal, then the molten metal is subjected to preliminary refining such as desulfurization. A cover body 1 for preventing splashing provided with a collar 9 and a segmenting leg 10 is placed on the ladle 2 and a lance is inserted through the upper hole 8 of the body 1 to perform refining such as desulfurization. The immersing depth (d) of the leg 10 of the body 1 into the metal 4 is made >=50cm, and the area S2 in the outside part of the segmenting leg is so determined as to attain
摘要翻译：目的：为了防止熔融金属吸入空气中的氮气，并在将熔剂吹入钢包中的熔融金属的阶段中溅射到钢包的外部，并通过密封地密封钢包进行精炼，例如脱硫，具体形状，并通过脱硫精炼熔融金属。构成：将铁水，钢水等熔融金属4放入钢包2中，将喷枪浸入其中以将熔剂吹入熔融金属中，然后对熔融金属进行脱硫等初步精炼。用于防止具有轴环9和分段腿10的飞溅的盖体1放置在钢包2上，并且穿过主体1的上孔8插入喷枪以进行诸如脱硫的精炼。将本体1的腿部10的浸渍深度（d）制成> 50cm，并且分割腿部的外侧部分中的面积S2被确定为达到<=表面积的30％的整个熔融金属。防止熔融金属飞溅到钢包的外部，并且在钢包中的空间中从空气中吸收氮气，以便通过存在这种腿10来破坏其质量，在从喷枪吹入助焊剂的阶段。

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