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1. 发明专利

JPS58213817A Refining method of steel 失效
标题翻译：钢精炼方法
公开(公告)号：JPS58213817A
公开(公告)日：1983-12-12
申请号：JP9676682
申请日：1982-06-04
申请人： Sumitomo Metal Ind Ltd
发明人： MASUDA SEIICHI , MATSUO TOORU , OOKITA YOSHIMICHI , AOKI TATEO , NAKAJIMA HIDEMASA , OKAMURA SHIYOUZOU , HIRATA TAKEYUKI , ANEZAKI MASAHARU
IPC分类号： C21C5/32 , C21C5/35
CPC分类号： C21C5/35
摘要： PURPOSE:To stabilize and simplify the stage for refining and to reduce the cost thereof by mixing the powder of the prescribed compsn. obtd. by grinding and mixing a synthetic slag forming agent such as quicklime or the like in the gaseous oxygen flow for top blowing, adding the gaseous flow to molten iron and blowing an inert gas under the bath surface thereby stirring the molten steel. CONSTITUTION:An oxygen lance B for top blowing is inserted into the molten iron in a converter CV until the forward end thereof is positioned to the required height (h) above the surface S of the molten steel. Powder of a synthetic slag forming agent such as quicklime or the like to be ejected together with a gaseous carrier from the nozzle 15 in the central part of the lance B and the gaseous O2 to be ejected from peripheral nozzles 16 are so injected that the fluxes intersect with each other at the surface S or the fire point F. On the other hand, an inert gas such as gaseous Ar is blown under the bath surface A from the tuyere provided in the bottom or side wall of the converter CN to stir the molten iron. The powder of the above-described synthetic slag forming agent having the compsn. of 60-70% CaO, 10-25% Fe2O3, 7-30% Al2O3,
摘要翻译：目的：稳定和简化炼制阶段，并通过混合规定的混合物的粉末来降低成本。有限公司通过在用于顶吹的气态氧气流中研磨和混合诸如生石灰等合成成渣剂，将气流加入到铁水中并在浴表面吹入惰性气体，从而搅拌钢水。构成：将用于顶吹的氧枪B插入转炉CV中的铁水中，直到其前端位于钢水表面S上方所需的高度（h）。喷射器B的中心部分的喷嘴15和从周边喷嘴16喷出的气态O 2，与气态载体一起喷出的生石灰等合成成渣剂的粉末被注入，在表面S或火点F处彼此相交。另一方面，惰性气体例如气态Ar从设置在转换器CN的底部或侧壁的风口吹入浴槽表面A，搅拌铁水。上述合成成型剂的粉末具有组成。使用60-70％的CaO，10-25％的Fe2O3，7-30％的Al2O3，<= 15％的MgO，<= 5％的TiO2和<= 5％的SiO2。

2. 发明专利

JPS58207315A Manufacture of steel 失效
标题翻译：钢的制造
公开(公告)号：JPS58207315A
公开(公告)日：1983-12-02
申请号：JP9171882
申请日：1982-05-28
申请人： Sumitomo Metal Ind Ltd
发明人： NAKAJIMA HIDEO , OKAMURA SHIYOUZOU , HIRATA TAKEYUKI , ANEZAKI MASAHARU , MASUDA SEIICHI , MATSUO TOORU , OOKITA YOSHIMICHI , AOKI TATEO
IPC分类号： C21C5/32 , C21C5/34 , C21C5/36 , C21C5/46
CPC分类号： C21C5/32
摘要： PURPOSE:To stabilize blowing, to improve the quality of product steel and the yield of raw material and to reduce the cost for disintegrating a slag forming agent in an O2 top blown steel making method wherein gases are blown under the bath surface by charging a limited ratio of slag forming agents in the form of lump and adding the remaining part of the slag forming agent in the form of powder together with top blown O2. CONSTITUTION: =1 kind slag forming agents such as quicklime, limestone, dolomite or the like to be added are charged in the form of lump from a chute S for charging raw material on a recovery hood for waste gas to the molten iron in a converter CV inserted therein with a lance L. If necessary, >=1 kind Mn ore and iron ore can be charged in this stage. The remaining part of the slag forming agents are carried by a gaseous carrier and are injected in the form of powder from the nozzle 15 in the central part of a nozzle head A of the lance and are guided without scattering into the bath by the gaseous O2 injected from 3 pieces of peripheral nozzles 16. The powder slag forming agents are added under such condition that the basicity of slag attains >=2 from the start of blowing to the end of desiliconization and during the time until the blowing end from at least 2min before the end of the blowing.
摘要翻译：目的：为了稳定吹塑，提高产品钢质量和原料产率，并降低在O2顶吹钢制造方法中分解成渣剂的成本，其中通过对有限的以块状形式的成渣剂的比例，并将粉末形式的剩余部分的成渣剂与顶吹的O2一起加入。构成：<=整个的70％。将1种以上添加的生石灰，石灰石，白云石等的成渣剂从用于将废气回收罩装入原料的滑槽S的块状物投入到转炉中的铁水中 CV插入其中用喷枪L.如果需要，> = 1种锰矿石和铁矿石可以在这个阶段充电。炉渣形成剂的剩余部分由气态载体承载，并且在喷枪头A的中心部分中从喷嘴15注入粉末形式，并且通过气体O 2而不被散射到浴中从3个外围喷嘴16喷射。粉末成渣剂在从开始开始到脱硅结束之间并且在直到吹制结束的时间至少2分钟的条件下，渣的碱度达到= 2的条件下加入在吹的结束之前。

3. 发明专利

JPS5181734A 失效
公开(公告)号：JPS5181734A
公开(公告)日：1976-07-17
申请号：JP658975
申请日：1975-01-14
申请人： SUMITOMO METAL IND
发明人： KOGA KEIZO , OOKITA YOSHIMICHI , MIZUTANI MAKOTO , KIMYA SHOGO , YOSHIDA AKINORI
IPC分类号： B22D27/02 , B22D11/10 , B22D11/115

4. 发明专利

JPS621445B2 失效
公开(公告)号：JPS621445B2
公开(公告)日：1987-01-13
申请号：JP9171882
申请日：1982-05-28
申请人： SUMITOMO METAL IND
发明人： NAKAJIMA HIDEO , OKAMURA SHOZO , HIRATA TAKEYUKI , ANEZAKI MASAHARU , MASUDA SEIICHI , MATSUO TOORU , OOKITA YOSHIMICHI , AOKI TATEO
IPC分类号： C21C5/32 , C21C5/34 , C21C5/36 , C21C5/46

5. 发明专利

JPS58207314A Refining method of steel 失效
标题翻译：钢精炼方法
公开(公告)号：JPS58207314A
公开(公告)日：1983-12-02
申请号：JP9171782
申请日：1982-05-28
申请人： Sumitomo Metal Ind Ltd
发明人： MASUDA SEIICHI , MATSUO TOORU , OOKITA YOSHIMICHI , AOKI TATEO , NAKAJIMA HIDEO , OKAMURA SHIYOUZOU , HIRATA TAKEYUKI , ANEZAKI MASAHARU
IPC分类号： C21C5/32 , C21C1/04 , C21C5/35 , C21C5/36
CPC分类号： C21C5/36 , C21C1/04 , C21C5/35
摘要： PURPOSE: To obtain ultra-low phosphorus steel with quicklime of about the amt. to be used in ordinary converter refining in O
2 blown refining by using the molten iron which is subjected to desiliconization and, if necessary, to dephosphorization, and blowing gases under the bath surface at the same instant of adding slag making agents in the form of powder.
CONSTITUTION: The molten steel which is subjected at least to desiliconization and, if necessary, to dephosphorization is charged into a converter C inserted therein with a lance B, and O
2 is injected from three pieces of peripheral nozzles 16 in a nozzle head part A, so that the molten steel is refined by top blowing of O
2 . Powder of ≥1 kind slag making agents such as quicklime, limestone, fluorite, dolomite or the like is carried by a gaseous carrier and is added to the molten iron from the nozzle 15 in the central part. The powder is guided to the surface of the molten iron without scattering by the O
2 from the nozzles 16. ≥1 kind among inert gases and gaseous N
2 , O
2 , CO, CO
2 are blown through a tuyere N under the bath surface S during the period of said blowing or till the discharging period after the end of the blowing that follows the blowing period. The stirring of the molten iron or molten slag is thus intensified; therefore, slag-off is accelerated and ultra-low phosphorus steel is obtained.
COPYRIGHT: (C)1983,JPO&Japio
摘要翻译：目的：获得生石灰的超低磷钢。用于通过使用脱硅的铁水，如果需要的话，在O2吹炼精炼中的普通转炉精炼中使用脱磷，并且在添加粉末形式的除渣剂的同一时刻在浴表面下吹入气体。构成：将至少进行脱硅处理的钢水，必要时进行脱磷化，将其投入到其中插入有喷枪B的转炉C中，从喷嘴头部A的三个周边喷嘴16喷射O 2，使得钢水通过顶吹O2来精炼。 > = 1种造渣剂如生石灰，石灰石，萤石，白云石等粉末由气态载体承载，并从中心部分的喷嘴15加入到铁水中。粉末被引导到铁水的表面，而不会被喷嘴16的O2散射。在惰性气体中，> = 1种，气体N 2，O 2，CO，CO 2在浴表面S下吹入风口N 所述吹送期间或直到吹塑周期后的吹塑结束后的排出期间。铁水或熔融渣的搅拌因此加剧; 因此，脱渣加速，得到超低磷钢。

6. 发明专利

JPS58181817A Manufacture of low-phosphorus al-killed steel 失效
标题翻译：低磷杀死钢的制造
公开(公告)号：JPS58181817A
公开(公告)日：1983-10-24
申请号：JP6448282
申请日：1982-04-16
申请人： Sumitomo Metal Ind Ltd
发明人： AOKI NOBUHIDE , YAMAZAKI ISAO , HIRATA TAKEYUKI , OOKITA YOSHIMICHI
IPC分类号： C21C7/00 , C21C7/06
CPC分类号： C21C7/06
摘要： PURPOSE:To extremely efficiently manufacture high-grade low-phosphorus Al-killed steel, by smelting pig iron melt together with necessary adjutant raw materials into a state having low C content with upper-blown oxygen and bottom-blown gas, vacuum degasifying the formed steel to deoxidize and decarburize it, adding Al to it, and then continuously casting it. CONSTITUTION:Pig iron melt tgether with necessary adjutant raw materials is bottom- blown with gas during and/or after being refined with upper-blown O2 in the converter furnace which enables the upper blowing of O2 and the bottom blowing of gas to make steel of [C] below 0.07%, and the resulting steel melt is tapped under an undeoxidized condition. The undeoxidized tapped steel melt is then treated in a vacuum degasifier to perform decarburization, deoxidation and the adjustment of necessary components. From the time when [C] comes close to an objective value with the progress of the decarburizing reaction of C+O CO in the vacuum degasifier, Al is added in installments to reduce [O] down to about 0.002-0.005%. Thereafter, the steel melt after being treated in this way is formed into a cast piece of predetermined size by a continuous casting process. The formation of Al2O3 clusters is little in this continuous cast piece, and said cast piece is a low-phosphorus Al-killed one extremely excellent in quality as compared with a conventional Al-killed cast steel piece.
摘要翻译：目的：为了极高效地制造高品位低磷铝杀死钢，通过将生铁与必要的副原料一起熔炼成具有较低C含量的上吹氧气和底吹气体的状态，真空脱气形成钢对其进行脱氧和脱碳，向其中加入Al，然后连续铸造。构成：在转炉炉内用上吹的O2进行精炼期间和/或之后，与必要的副原料一起生产的铁水熔化，使得上吹O2和气体的底吹使钢 [℃]低于0.07％，所得钢熔体在未脱氧条件下攻丝。然后在真空脱气器中处理未脱氧的螺纹钢熔体，以进行脱碳，脱氧和必要组分的调整。随着C + O CO在真空脱气装置中脱碳反应的进行，[C]接近目标值时，分批加入Al，将[O]还原为约0.002〜0.005％。此后，以这种方式处理后的钢熔体通过连续铸造工艺形成预定尺寸的铸件。在该连续铸件中，Al 2 O 3簇的形成很少，并且所述铸件是与常规Al-杀死的铸钢件相比质量极好的低磷Al杀死的一种。

7. 发明专利

JPS5825413A MONITORING METHOD FOR SLAG FORMATION IN REFINING FURNACE 失效
公开(公告)号：JPS5825413A
公开(公告)日：1983-02-15
申请号：JP12274581
申请日：1981-08-04
申请人： SUMITOMO METAL IND
发明人： ISHIMOTO HAYAHARU , OOKITA YOSHIMICHI
IPC分类号： C21C5/46
摘要： PURPOSE:To monitor the slag forming conditions in a converter by detection of the level and density of molten slag in steel making and refining with the converter by blowing an inert gas through gas blowing ports provided in the positions upper than the level of molten steel and measuring the flow rate and back pressure of the gas. CONSTITUTION:Gas blowing ports 5, 6 consisting of porous bricks are installed above the level of the molten steel 2 in a converter 1. An inert gas such as Ar having no influence upon a refining effect is blown through the ports 5, 6 with air feed pipes 10, 20 provided with flowmeters 11, 21, flow regulating valves 12, 22 and pressure gags 14, 24. The back pressure values measured with the gauges 14, 24 when the flow rate of the gaseous Ar is kept constant are inputted to an arithmetic circuit 7, which detects the level and density of the molten slag 3 in the coverter. It is possible to control the slag formation precisely in the converter operation in accordance with the detected values.

8. 发明专利

JPS544214A CONVERTER FLUX 失效
公开(公告)号：JPS544214A
公开(公告)日：1979-01-12
申请号：JP7034577
申请日：1977-06-13
申请人： SUMITOMO METAL IND
发明人： OOKITA YOSHIMICHI , OZAKI KENJI , KAWAMI AKIRA , YAMAMOTO KIYOSHI
IPC分类号： C21C5/36
摘要： PURPOSE:To provide converter flux pellets obtd. by adding a binder to dehydrated oil-contg. scale sludge and briquetting the binder-added sludge so as to recycle the oil-contg. scale sludge as an iron resource.

9. 发明专利

JPS58221213A Refining method of steel 失效
标题翻译：钢精炼方法
公开(公告)号：JPS58221213A
公开(公告)日：1983-12-22
申请号：JP10344982
申请日：1982-06-15
申请人： Sumitomo Metal Ind Ltd
发明人： MASUDA SEIICHI , MATSUO TOORU , OOKITA YOSHIMICHI , AOKI TATEO , NAKAJIMA HIDEMASA , OKAMURA SHIYOUZOU , HIRATA TAKEYUKI , ANEZAKI MASAHARU
IPC分类号： C21C5/32 , C21C5/35 , C21C5/36
CPC分类号： C21C5/35
摘要： PURPOSE:To produce ultra-low phosphorus steel in a converter by contg. powder of slag forming agents such as quicklime into the gaseous oxygen flow to be top blown, blowing the same thoroughly deeply into the molten iron, blowing an inert gas or the like under the bath surface and mixing the bath uniformly for a prescribed time. CONSTITUTION:Powder mixed with >=1 kind slag forming agents such as quicklime, limestone, fluorite, dolomite or the like is mixed in the gaseous oxygen flow to be top blown by a lance B having a nozzle head part A, and is blown into the bath under the condition under which the above-mentioned powder is intruded in the bath at >=30% of the bath depth, in a steel making method by top blowing of oxygen in a converter CV>=1 kinds among inert gas, gaseous nitrogen, gaseous oxygen gaseous carbon monoxide and gaseous carbon dioxide are blown through a tuyere N into the molten metal below the bath surface S under the condition under which the bath is mixed uniformly for 30-100sec during the period of blowing operation by oxygen top blowing or until the discharging period after the end of the blowing in succession to said period, whereby the slag having >=5 basicity is formed and the ultra-low phosphorus steel is produced.
摘要翻译：目的：在转炉中生产超低磷钢，将诸如生石灰的成渣剂粉末吹入气态氧气流中，将其吹入铁水中，在浴液表面吹入惰性气体等并均匀混合规定时间。构成：在具有喷嘴头部A的喷枪B吹入的气态氧气流中混合粉末与石灰石，石灰石，萤石，白云石等> 1种成渣剂的粉末，并吹入在上述粉末浸入浴中的条件下，在浴槽深度的> = 30％的条件下，在转炉中通过顶吹氧气的制钢方法CV> =惰性气体，气体中的1种氮气，氧气气态一氧化碳和气态二氧化碳通过吹风操作期间通过氧气吹风均匀混合30-100秒的条件，通过风口N吹入浴表面S下方的熔融金属或直到连续吹塑结束后的排出期间，形成> = 5碱度的渣，制造超低磷钢。

10. 发明专利

JPS58213816A Refining method of steel 失效
标题翻译：钢精炼方法
公开(公告)号：JPS58213816A
公开(公告)日：1983-12-12
申请号：JP9676582
申请日：1982-06-04
申请人： Sumitomo Metal Ind Ltd
发明人： MASUDA SEIICHI , MATSUO TOORU , OOKITA YOSHIMICHI , AOKI TATEO , NAKAJIMA HIDEMASA , OKAMURA SHIYOUZOU , HIRATA TAKEYUKI , ANEZAKI MASAHARU
IPC分类号： C21C5/32 , C21C5/35
CPC分类号： C21C5/35
摘要： PURPOSE:To form slag efficiently and to refine molten steel stably by mixing powder of a slag forming agent into oxygen gaseous flow for top blowing, blowing the oxygen gaseous flow into the bath down to the prescribed infiltration depth, blowing a gas under the bath surface and stirring the molten steel. CONSTITUTION:A top blowing oxygen lance B is inserted into the molten steel in a converter CV to the required height above the surface S of said steel. Powder of a slag forming agent such as quicklime is injected together with a gaseous carrier from a powder supply line 11. O2 is injected simultaneously from three pieces of peripheral nozzles 16 so as to guide the powder to the bath surface S without scattering the same. The ratio of powder/gas, the diameter of the nozzle, the height of the lance, etc. are so selected that the depth of the infiltration of the powder into the bath is made >=30% of the depth of the bath in order to prevent the powdering by the generated gaseous CO. On the other hand, an inert gas such as gaseous Ar is blown through single or plural tuyeres N provided in the bottom or side wall of the converter CV. The uniform mixing time of the bath in this case is so set as to be 30-100sec, whereby the slag is formed efficiently and the molten steel is refined stably.
摘要翻译：目的：通过将炉渣形成剂的粉末混合到氧气气流中进行顶吹，将氧气气流吹入浴槽，达到规定的渗透深度，在熔池表面下吹气并搅拌钢水。构成：将顶吹氧枪B插入转炉CV中的钢水中至所述钢表面S上方所需的高度。粉末形成剂如生石灰的粉末与来自粉末供应管线11的气态载体一起注入。同时从三个周边喷嘴16注入O 2，以将粉末引导到浴表面S而不使其散开。粉末/气体的比例，喷嘴的直径，喷枪的高度等被选择成使得粉末渗入浴槽的深度按照浴槽深度的30％按顺序为了防止所产生的气态CO的粉化，另一方面，通过设置在转炉CV的底壁或侧壁上的单个或多个风口N吹送诸如气态Ar的惰性气体。在这种情况下，浴的均匀混合时间设定为30-100秒，由此有效地形成炉渣，并且使钢水稳定地精炼。

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