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1. 发明专利

JP2010095766A Apparatus and method for preventing deformation of shell of vessel bottom in rf vacuum degassing vessel 审中-公开
标题翻译：用于防止射流真空容器内的船体底部变形的装置和方法
公开(公告)号：JP2010095766A
公开(公告)日：2010-04-30
申请号：JP2008268091
申请日：2008-10-17
申请人： Sanyo Special Steel Co Ltd , 山陽特殊製鋼株式会社
发明人： YAMADA SOHEI
IPC分类号： C21C7/10
摘要： PROBLEM TO BE SOLVED: To provide an apparatus and a method for preventing the deformation of a shell of a vessel bottom in order to improve the service life of a lining brick on the lower vessel in an RF vacuum degassing vessel.
SOLUTION: A heat-preventing tool 7 for cutting off radiant heat from a ladle 12 installed at the lower part is provided in the portion of the vessel bottom 3b in the interval of a circulating tube 4 in the lower vessel 3 of the RF vacuum degassing vessel 1, thereby preventing the shell 6 at the interval of the circulating tube 4 from being exposed of the high temperature. The heat-preventing tool 7 is made of a heat-insulative material 8, and further, both end parts at the lower surface of the heat-insulative material 8 are supported with the iron-sheets 9 from the lower part, and the iron-sheets are hang down with hanging tools 10 to the vessel bottom 3b of the lower vessel 3, and a gap 11 is arranged in the interval between the heat-insulative material 8 and the shell 6 of the vessel bottom 3b to restrain the direct heat-conduction onto the shell 3b. The deformation caused by softening and heat-expansion of the shell 6 in the interval of an immersion tube 4 in the vessel bottom 3b, is prevented and the crack and the exfoliation of the lining brick 5 below the inner part of the shell 6 to drastically extend the service life of the lower vessel 3b.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于防止容器底部的壳体变形的装置和方法，以便提高RF真空脱气容器中的下部容器上的衬砌砖的使用寿命。解决方案：用于从安装在下部的钢包12切断辐射热的防热工具7设置在容器底部3b的部分中，循环管4的间隔在 RF真空脱气容器1，从而防止在循环管4的间隔处的壳体6暴露于高温。防热工具7由绝热材料8制成，另外，绝热材料8的下表面的两个端部从下部被铁板9支撑，铁 - 片材用悬挂工具10悬挂到下部容器3的容器底部3b，并且间隙11布置在容器底部3b的绝热材料8和壳体6之间的间隔中，以限制直接的热 - 传导到外壳3b上。防止了在容器底部3b中的浸入管4的间隔中的壳体6的软化和热膨胀引起的变形，并且使壳体6内部的衬里砖5的裂纹和剥离显着地延长下部容器3b的使用寿命。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2007302987A Method of improving yield of chromium in melting low phosphorus-chromium-containing tool steel in electric furnace 审中-公开
标题翻译：改善电解炉中低铬含铬工具钢中铬含量的方法
公开(公告)号：JP2007302987A
公开(公告)日：2007-11-22
申请号：JP2006135842
申请日：2006-05-15
申请人： Sanyo Special Steel Co Ltd , 山陽特殊製鋼株式会社
发明人： YAMADA SOHEI , MISHIMA KAZUYA
IPC分类号： C21C5/52 , C21C5/54
CPC分类号： Y02P10/216
摘要： PROBLEM TO BE SOLVED: To provide a method for solving the problem of returning of phosphorus from a slag due to feeding of a deoxidant, and securing a high chromium yield while maintaining productivity as a whole, in a method of melting a tool steel containing low phosphorus-chromium from scraps in an electric furnace. SOLUTION: The method for melting a low phosphorus-chromium steel comprises a step of dephosphorizing a molten steel, as shown in figure 3, to reduce slag in the molten steel by performing two times of slag removing after melting down fed scraps by blowing oxygen in an electric furnace, further removing the slag with a rake-out tool one time, then a step of deoxidizing the molten steel by feeding metallic aluminum in addition to a deoxidant ferrosilicon, and further more a step of feeding a chromium alloy to make the steel contain chromium. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种解决由于脱氧剂的供给而从炉渣返回磷的问题的方法，并且在保持整个生产率的同时确保高的铬产率，在熔化工具的方法中在电炉中从废料中含有低磷铬的钢。解决方案：低磷铬钢的熔融方法包括如图3所示的对钢水进行脱磷的步骤，通过在熔融后的废料中进行两次除渣来减少钢水中的渣在电炉中吹氧，再用耙机一次进一步去除炉渣，然后通过除去脱硅硅铁之外的金属铝进一步除去钢水，再进一步将铬合金供给到使钢含有铬。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2005177783A Mold powder for casting 有权
标题翻译：模具粉末粉末
公开(公告)号：JP2005177783A
公开(公告)日：2005-07-07
申请号：JP2003419303
申请日：2003-12-17
申请人： Nippon Thermochemical Co Ltd , Sanyo Special Steel Co Ltd , 山陽特殊製鋼株式会社 , 日本サーモケミカル株式会社
发明人： KITADE SHINICHI , YAMADA SOHEI , KAWAMOTO TATSUYA , WATANABE MITSUNARI
IPC分类号： B22D11/108
摘要： PROBLEM TO BE SOLVED: To provide mold powder for casting with which even in the case of having large heat exhaustion and high solidifying speed of a cast slab, such as a steel containing lead, the surface quality of the cast slab is good and the productivity can be improved.
SOLUTION: This mold powder is constituted so as to be 7-14 mass% carbon content, ≤0.7 bulk density at the loose filling-up of the mold powder, 0.5-5 Pa×s viscosity at 1,573 K and 1,173-1,423 K solidifying temperature.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供铸造用铸型粉末，即使在诸如含铅钢之类的铸造板具有大的热耗竭和高凝固速度的情况下，铸坯的表面质量也良好并且可以提高生产率。
解决方案：该模具粉末构成为在模具粉末的松散填充时为7-14质量％的碳含量，≤0.7堆积密度，在1,573K下为0.5-5Pa×s粘度和1,173- 1,423 K固化温度。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2005103628A Method for uniformly cooling continuously cast bloom and cooling water-pouring nozzle 审中-公开
标题翻译：连续冷却连续冷却和冷却水压喷嘴的方法
公开(公告)号：JP2005103628A
公开(公告)日：2005-04-21
申请号：JP2003343698
申请日：2003-10-01
申请人： Sanyo Special Steel Co Ltd , 山陽特殊製鋼株式会社
发明人： YAMADA SOHEI , KITADE SHINICHI
IPC分类号： B22D11/124 , B22D11/22
摘要： PROBLEM TO BE SOLVED: To obtain the uniform bainite structure as the structure of a cooled bloom and to eliminate the crack in the bloom by improving a cooling method for bloom and the shape of a nozzle for pouring water, in the cooling of the bloom drawn out from a continuous casting apparatus with a bloom cooler.
SOLUTION: While conveying the bloom 3 drawn out from the continuous casting apparatus, in the bloom cooler 1, the water pouring shape from a plurality of nozzles 4 uniformly disposed, is formed as an oblong elliptic shape 5 in the conveying direction of the bloom cooler 1. In this way, the bloom is uniformly cooled.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题为了获得作为冷却的花纹的结构的均匀的贝氏体结构，并且通过改进花的冷却方法和用于浇注水的喷嘴的形状来消除花纹中的裂纹，在冷却从具有盛开冷却器的连续铸造装置中抽出的花絮。解决方案：在输送从连续铸造装置中抽出的花纹3的同时，在盛开冷却器1中，从均匀设置的多个喷嘴4的浇注形状沿着输送方向形成为长圆形椭圆形状盛开的冷却器1.以这种方式，将花朵均匀地冷却。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2004083936A Porous plug in ladle for stainless steel 审中-公开
公开(公告)号：JP2004083936A
公开(公告)日：2004-03-18
申请号：JP2002242837
申请日：2002-08-23
申请人： Sanyo Special Steel Co Ltd , 山陽特殊製鋼株式会社
发明人： KITADE SHINICHI , YAMADA SOHEI
IPC分类号： B22D1/00 , C21C7/072
摘要： PROBLEM TO BE SOLVED: To reduce a cost and further, to lighten a working load by dissolving the conventional problem in a porous plug in a ladle refining for melting a stainless steel with which the wearing of the porous plug at the early time is prevented.
SOLUTION: The main body 5 of the porous plug 1 is formed of a refractory composed of 91% Al
2 O
3 , 7% SiO
2 and the balance impurities and having 35.2% porosity and 34 MPa compressive strength. At the most top part of the main body 5 of the porous plug 1, the porosity for preventing an infiltration during an RH treatment, i.e. a permeability is lower than that of the main body, and the refractory of material having a little infiltration of the molten steel, e.g. a first layer in the infiltration preventive part 2 is formed with a refractory composed of 94% MgO, 3% SiO
2 and the balance impurities and having 4.9% porosity and 40 MPa compressive strength.
COPYRIGHT: (C)2004,JPO

6. 发明专利

JP2003262476A LADLE REPAIR CARRIER HAVING PUNCH 审中-公开
公开(公告)号：JP2003262476A
公开(公告)日：2003-09-19
申请号：JP2002064483
申请日：2002-03-08
申请人： SANYO SPECIAL STEEL CO LTD
发明人： YAMADA SOHEI
IPC分类号： B22D41/02 , B22D1/00 , B22D41/52 , B22D45/00 , C21C7/00 , F27D1/16
摘要： PROBLEM TO BE SOLVED: To provide equipment reducing a replacing work of a porous plug for a ladle and a burden imposed on an inside repair work and securing a safe work. SOLUTION: This ladle repair carrier having a water cooling capsule 17 mounted in front of a carrier 1 is disposed with a punch for replacing the porous plug 20 provided in the bottom part 19 of the ladle in the water cooling capsule 17. This ladle repair carrier has the punch, which is provided with a boom 7 having its base part attached to a support frame mount 5 on the carrier 1 in the rear part outside the water cooling capsule 17 so as to rotationally move in the top/bottom/left/right and its tip part extending in the water cooling capsule 17 so as to rotationally move in the top/bottom/left/right, a vertically rotational horizontal guide 9 provided in the tip of the boom, a vertically rotational guide cell 12 attached from the boom 7 extending inside the water cooling capsule 17 to its side via a cell mounting 11, a hydraulic breaker 14 provided in the guide cell 12 and moving frontward by a hydraulic chain feed motor 13, and a punch rod 15 fed by the hydraulic breaker 14. COPYRIGHT: (C)2003,JPO

7. 发明专利

JP2002248550A TUNDISH FOR CONTINUOUS CASTING OF HIGH-PURITY STEEL AND CONTINUOUS CASTING METHOD FOR HIGH-PURITY STEEL 失效
公开(公告)号：JP2002248550A
公开(公告)日：2002-09-03
申请号：JP2001047360
申请日：2001-02-22
申请人： SANYO SPECIAL STEEL CO LTD
发明人： YAMADA SOHEI , OE KEIZO
IPC分类号： B22D11/10 , B22D41/02
摘要： PROBLEM TO BE SOLVED: To provide a method for continuous-casting molten steel with its purity being kept by reducing oxide inclusions mixed into the molten steel due to the cracking or flaking of an MgO-based board which is the surface layer on alumina brick laid in the bottom and wall of a tundish. SOLUTION: This invention relates to a tundish 1 wherein an MgO-based board as a surface layer formed by adding an oscillation process is laid on alumina brick 6 spread on the bottom 2 and wall 3 of the tundish. With regard to the MgO-based board 8 formed by adding the oscillation process, the bulk specific gravity is increased by 1.25 times, the apparent porosity is decreased to 70%, and the deflective strength is increased by 1.68 times, as compared with the conventional board.

8. 发明专利

JP2005081354A High heat-resistant flexible tube, bearing under high temperature atmosphere and ladle used for this tube 审中-公开
标题翻译：高耐热柔性管，承受高温大气和用于此管的梯子
公开(公告)号：JP2005081354A
公开(公告)日：2005-03-31
申请号：JP2003313019
申请日：2003-09-04
申请人： Sanflex Kk , Sanyo Special Steel Co Ltd , サンフレックス株式会社 , 山陽特殊製鋼株式会社
发明人： YAMADA SOHEI , YAGI KENJU , AKITAKE YOSHIAKI , KINOSHITA HIROYUKI
IPC分类号： B22D46/00 , B22D41/14
摘要： PROBLEM TO BE SOLVED: To provide a high heat-resistant flexible tube having long service life with which a hydraulic circuit in a hydraulic device, such as an opening/closing device for ladle nozzle, used under high temperature atmosphere having fear of directly contacting with molten steel and slag of the steel etc., is protected from the high heat of the slag and the molten steel.
SOLUTION: This high heat-resistant flexible tube 1 having long service life, is protected to the hydraulic circuit etc., used under high temperature by arranging a heat-insulating material 3 on the outer periphery of a high pressure rubber hose 2 and further, covering with a flexible spiral tube 5 composed of a steel sheet material on the outer part of the heat-insulating material 3.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供使用寿命长的高耐热柔性管，液压装置中的液压回路例如用于钢包喷嘴的打开/关闭装置，在高温气氛下使用，具有担心直接接触钢水和钢渣等，可以防止炉渣和钢水的高热量。解决方案：通过在高压橡胶软管2的外周设置绝热材料3，使用寿命长的高耐热柔性管1被保护在高温下使用的液压回路等并且还在绝热材料3的外侧部分由钢板材料构成的柔性螺旋管5覆盖。（C）2005，JPO＆NCIPI

9. 发明专利

JP2004306053A Light rolling reduction method and light rolling reduction device for slab in continuous casting 审中-公开
公开(公告)号：JP2004306053A
公开(公告)日：2004-11-04
申请号：JP2003099578
申请日：2003-04-02
申请人： Sanyo Special Steel Co Ltd , 山陽特殊製鋼株式会社
发明人： YAMADA SOHEI , KITADE SHINICHI
IPC分类号： B22D11/20 , B22D11/128 , B22D11/16
摘要： PROBLEM TO BE SOLVED: To provide a method of reducing the obstruction of productivity owing to the slowdown of a casting speed in continuous casting caused by the provision of limitations in the casting speed.
SOLUTION: In the light rolling reduction for a slab in continuous casting, the distance to a slab 5 in a drawing section 6 of a continuous casting device 1 is measured by a laser distance measurement instrument 7 installed on this side of a light rolling reduction device 8 for the slab 5 so as to be confronted with and separated from the slab 5. The thickness of the slab 5 is calculated from the measured result, and based on the thickness of the slab 5, the stroke amounts of rolling reduction rolls 9, 10 and 11 in the light rolling reduction device 8 are controlled.
COPYRIGHT: (C)2005,JPO&NCIPI

10. 发明专利

JP2011099151A Method of rh degassing treatment for preventing white spot and crack in steel ingot 审中-公开
标题翻译：用于防止白铁矿和钢铁裂纹的RH降解处理方法
公开(公告)号：JP2011099151A
公开(公告)日：2011-05-19
申请号：JP2009255514
申请日：2009-11-06
申请人： Sanyo Special Steel Co Ltd , 山陽特殊製鋼株式会社
发明人： HAMAYA DAISUKE , YAMADA SOHEI
IPC分类号： C21C7/10 , F27D1/16
摘要： PROBLEM TO BE SOLVED: To provide a method for preventing white spots and cracks in a steel ingot by sufficiently removing moisture contained in a furnace wall of an RH degassing treatment tank to reduce hydrogen in a molten steel in a method of RH degassing treatment.
SOLUTION: When conducting the degassing treatment of the molten steel for the first time using the RH degassing treatment tank whose refractory bricks are newly lined in a lower tank of the RH degassing treatment tank, during a standby period before conducting the degassing treatment of the first charge as a main treatment, a preliminary degassing treatment step is conducted. After moisture is evaporated from a refractory brick lining layer of the lower tank by a heat of the molten steel circulating inside the RH degassing treatment tank during the preliminary degassing treatment step, the degassing treatment of LF-refined molten steel is conducted as the main treatment. When conducting the RH degassing treatment after the preliminary degassing treatment, at least one charge chosen from the first charge and the subsequent charges of the main treatment is conducted for a degassing treatment time of at least 30 min, thereby preventing white spots and cracks in the steel ingot.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过充分除去RH脱气处理槽的炉壁中含有的水分以在RH脱气的方法中减少钢水中的氢气来防止钢锭中的白斑和裂纹的方法治疗。解决方案：在进行脱气处理之前的待机期间，首先使用在RH脱气处理槽的下槽中新衬里的耐火砖的RH脱气处理槽首次进行脱气处理时，作为主要处理，进行初步脱气处理步骤。在预脱气处理工序中，通过在RH脱气处理槽内循环的钢水的热量，从下罐的耐火砖衬里层蒸发水分后，对LF精炼钢水进行脱气处理。在进行初步脱气处理后进行RH脱气处理时，进行至少一次从第一次充电选择的电荷和随后的主处理电荷，进行至少30分钟的脱气处理时间，从而防止了白点和裂纹钢锭。版权所有（C）2011，JPO＆INPIT

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