公开(公告)号：US4586558A

公开(公告)日：1986-05-06

申请号：US571693

申请日：1984-01-18

申请人： Takasuke Mori ,  Jun Miyazaki ,  Manabu Miyamoto ,  Kiichi Narita

发明人： Takasuke Mori ,  Jun Miyazaki ,  Manabu Miyamoto ,  Kiichi Narita

IPC分类号： B22D11/04 ,  B22D11/047 ,  B22D11/10

CPC分类号： B22D11/0475

摘要： A feed nozzle unit for a horizontal continuous casting process, the feed nozzle unit being disposed in coaxial relation between a tundish nozzle and a mold in a horizontal continuous casting device and including a fixing member of cylindrical form fixedly connected to the mold, the feed nozzle being fixed and connected in coaxial relation to the fixing member at a position inside a connecting side of the tundish nozzle, and the connecting refractory material being fitted in coaxial relation to the fixing member at a position adjacent a connecting side of the mold.

摘要翻译： 一种用于水平连续铸造工艺的进料喷嘴单元，所述进料喷嘴单元在水平连续铸造装置中在中间包喷嘴和模具之间以同轴的关系设置，并且包括固定地连接到所述模具的圆柱形固定构件，所述进料喷嘴 在中间包喷嘴的连接侧内的位置固定并与固定构件连接，并且连接耐火材料在与模具的连接侧相邻的位置处与固定构件同轴地嵌合。

公开(公告)号：US4406754A

公开(公告)日：1983-09-27

申请号：US246944

申请日：1981-03-24

申请人： Kiichi Narita ,  Toshio Onoye ,  Akira Egami

发明人： Kiichi Narita ,  Toshio Onoye ,  Akira Egami

IPC分类号： C21D9/22 ,  G01N27/30 ,  G01N27/407 ,  G01N27/411 ,  G01N27/416 ,  G01N27/46

CPC分类号： G01N27/4114

摘要： A method for rapidly determining a sulfur level in materials, particularly molten metals or gases, the method comprising contacting a reference electrode made of a specific type of a metal and metal sulfide mixture with a sulfur-containing molten metal or gas serving also as a counter electrode through a sulfide solid electrolyte thereby measuring an electromotive force established between the electrodes. The working temperature of the molten metal or gas is also measured. These parameters measured are used to calculate a sulfur content based on a certain equation. The probe for carrying out the above method is also disclosed, which comprises a reference electrode made of a material having a certain sulfur potential, a mass of a solid electrolyte comprised of CaS and TiS.sub.2, the reference electrode being contacted with a molten metal or gas through the solid mass to form a cell, a means for measuring an electromotive force generated across the cell, and a means for measuring a working temperature of the molten metal or gas.

摘要翻译： 一种用于快速测定材料，特别是熔融金属或气体中的硫含量的方法，该方法包括将由特定类型的金属和金属硫化物混合物制成的参比电极与也用作反应器的含硫熔融金属或气体接触 电极通过硫化物固体电解质，从而测量在电极之间建立的电动势。 也测量熔融金属或气体的工作温度。 测量的这些参数用于根据一定方程计算硫含量。 还公开了用于实施上述方法的探针，其包括由具有一定硫势的材料制成的参比电极，由CaS和TiS2组成的固体电解质的质量，参比电极与熔融金属或气体接触 通过固体物质形成电池，用于测量电池两端产生的电动势的装置和用于测量熔融金属或气体的工作温度的装置。

公开(公告)号：US4671335A

公开(公告)日：1987-06-09

申请号：US899793

申请日：1986-08-25

申请人： Kenzo Ayata ,  Kiichi Narita ,  Takasuke Mori ,  Takahiko Fujimoto

发明人： Kenzo Ayata ,  Kiichi Narita ,  Takasuke Mori ,  Takahiko Fujimoto

IPC分类号： B22D11/115 ,  B22D11/12 ,  B22D11/04 ,  B22D27/02

CPC分类号： B22D11/122 ,  B22D11/115

摘要： A method for the continuous production of cast steel strands which are 200 mm.times.200 mm or less in cross-section by a continuous casting process in which molten steel containing over 0.20% of carbon is fed into a casting mold with a lubricant through a submerged nozzle or in an open stream and continuously drawn out downwardly of the casting mold, which includes the steps of (a) electromagetically stirring the molten steel at a position within said casting mold by the application of a magnetic field induced by introducing into an electromagnetic coil an alternating current of a frequency (f) in the range of 1.5 to 15 and maintaining the magnetic flux density (gauss) in the range of 602 e.sup.-0.10f to 1844 e.sup.-0.12f at the center of the electromagnetic coil, and (b) electromagnetically stirring the molten steel at a position in the final solidifying zone, of the continuously cast strand, in which the shorter diameter of the molten steel pool is smaller than 1/2 the length of the shorter side of the cast strand, by the application of a magnetic field induced by introduing an alternating current into an electromagnetic coil and maintaining the magnetic flux density (gauss) in the range of 0.143.multidot.D.sup.2 +231 to 0.343.multidot.D.sup.2 +451 at the center of the electromagnetic coil, wherein D is the solidified shell thickness in millimeters of the continuously cast strand, the value of the D ranging from 20 to 90, thereby permitting the production of medium and high carbon killed steel billets, which are improved as to segregations, inclusions, surface quality, cold forgeability, and machinability, by a continuous casting process at low cost.

摘要翻译： 通过连续铸造方法连续生产200mm×200mm以下的铸钢股线的方法，其中含有超过0.20％的碳的钢水通过浸没式喷嘴或润滑剂供入到铸模中， 在开放的流中并连续地向下拉出铸模，其包括以下步骤：（a）通过施加通过引入到电磁线圈中引起的磁场在电铸线圈内的位置电磁搅拌钢水，交替地 频率（f）的电流在1.5至15的范围内，并且将磁通密度（高斯）保持在电磁线圈中心的602e-0.10f至1844e-0.12f的范围内，（b） 在连续铸造线材的最终凝固区域的位置电磁搅拌钢水，其中钢水池的较短直径小于短钢管的短边的1/2的长度 通过施加通过将交流电流引入到电磁线圈中并且将磁通密度（高斯）保持在电磁线圈的中心处的0.143×D 2 + 231至0.343×D 2 + 451的范围内的磁场， 其中D是连续铸造线材的以毫米为单位的凝固壳厚度，D的值在20至90之间，从而允许生产中高碳处理钢坯料，其分散，夹杂物，表面 质量，冷锻和可加工性，通过连续铸造工艺以低成本。

公开(公告)号：US4637453A

公开(公告)日：1987-01-20

申请号：US642659

申请日：1984-08-21

申请人： Kenzo Ayata ,  Kiichi Narita ,  Takasuke Mori ,  Takahiko Fujimoto

发明人： Kenzo Ayata ,  Kiichi Narita ,  Takasuke Mori ,  Takahiko Fujimoto

IPC分类号： B22D11/00 ,  B22D11/04 ,  B22D11/115 ,  B22D11/12 ,  B22D27/02 ,  B22D11/16

CPC分类号： B22D11/122 ,  B22D11/115

摘要： A method for the continuous production of cast steel strands which are 200 mm.times.200 mm or less in cross-section by a continuous casting process in which molten steel containing 0.20% or less of carbon is fed into a casting mold with a lubricant through a submerged nozzle or in an open stream and continuously drawn out downwardly of the casting mold. The method includes the steps of (a) electromagnetically stirring the molten steel at a position within said casting mold by the application of a magnetic field induced by introducing into an electromagnetic coil an alternating current of a frequency (f) in the range of 1.5 to 15 hertz and maintaining the magnetic flux density (Gaub) in the range of 602e.sup.-0.10f to 2441e.sup.-0.11f at the center of the electromagnetic coil, and (b) electromagnetically stirring the molten steel at a position in the final solidifying zone, of said continuously cast strand, in which the shorter diameter of the molten steel pool is smaller than 1/2 the length of the shorter side of the cast strand, by the application of a magnetic field induced by introducing an alternating current into an electromagnetic coil and maintaining the magnetic flux density (Gaub) in the range of 0.2.multidot.D.sup.2 +280 to 0.343.multidot.D.sup.2 +451 at the center of the electromagnetic coil, wherein D is the solidified shell thickness in millimeters of said continuously cast strand, the value of D ranging from 20 to 90. The method thereby permits the production of low carbon killed steel billets which are improved as to negative segregations, center cavities, inclusions, surface quality, cold forgeability, and machinability, by a continuous casting process at low cost.

摘要翻译： 通过连续铸造方法连续生产200mm×200mm以下的铸钢股线的方法，其中含有0.20％以下碳的钢水通过浸没喷嘴通过润滑剂进料到铸模中 或在开放的流中并连续地从铸模的下方拉出。 该方法包括以下步骤：（a）通过施加通过将电磁线圈引入的频率（f）在1.5至1.5的范围内的电流施加的磁场，在所述铸模内的位置处电磁搅拌钢水 15赫兹，并且在电磁线圈的中心处保持在602e-0.10f至2441e-0.11f范围内的磁通密度（Gaub），和（b）在最终凝固区的位置电磁搅拌钢水， 通过施加通过将交流电引入电磁线圈而引起的磁场，其中钢水池的较短直径小于铸线的短边的长度的1/2的所述连续铸造股线 并且在电磁线圈的中心处将磁通密度（Gaub）保持在0.2×D2 + 280〜0.343×D2 + 451的范围内，其中D是所述连续的以毫米为单位的凝固壳厚度 这种方法由此允许生产低负荷偏析，中心腔，夹杂物，表面质量，冷锻和可加工性的低碳杀死钢坯，由 连续铸造工艺成本低。

公开(公告)号：US4420332A

公开(公告)日：1983-12-13

申请号：US329033

申请日：1981-12-09

申请人： Kenji Mori ,  Kiichi Narita ,  Ryuzo Ijiri ,  Tsuneo Morimitsu ,  Dentaro Kaneko ,  Nobuo Uemura ,  Yoshifumi Kameoka ,  Mamoru Taniuchi

发明人： Kenji Mori ,  Kiichi Narita ,  Ryuzo Ijiri ,  Tsuneo Morimitsu ,  Dentaro Kaneko ,  Nobuo Uemura ,  Yoshifumi Kameoka ,  Mamoru Taniuchi

IPC分类号： C01B3/44 ,  C10G9/32 ,  C10G57/00 ,  C21B13/00 ,  C21B13/02

CPC分类号： C01B3/44 ,  C10G57/00 ,  C10G9/32 ,  C21B13/0033 ,  Y02P10/136 ,  Y02P10/216

摘要： The invention provides a novel process for concurrently carrying out production of reduced iron and thermal cracking of heavy oils in which the reaction of thermal cracking is performed in a fluidized state with the fine iron ore as the fluidized medium and the particles of the iron ore become coated with deposits of the carbonaceous by-product material. The fine iron ore with the carbon deposited thereon is introduced in a fluidized-bed reducing furnace and there reduced into reduced iron by contacting with a reducing gas which is produced in a gas reformer from the cracked gas or the residual oil separated from the products of the thermal cracking. In an improvement of the above process, the gas reformer is operated as a fluidized-bed reactor with the reduced iron as the fluidized medium and acting as the reforming catalyst. The reduced iron partially re-oxidized in the reforming reaction is again reduced to completely reduced iron either by recycling into the fluidized-bed reducing furnace or by introducing into a second fluidized-bed reducing furnace.

摘要翻译： 本发明提供了一种同时进行还原铁生产和重油热裂解的新方法，其中热裂解反应以流化状态进行，细铁矿石为流化介质，铁矿石颗粒成为 涂覆有碳质副产品材料的沉积物。 其中沉积有碳的细铁矿石被引入流化床还原炉中，并且通过与气体重整器中产生的还原气体相接触而将其还原成还原铁，所述还原气体是从裂化气体或从产物 热裂纹。 在上述方法的改进中，气体重整器作为流化床反应器操作，还原铁作为流化介质并用作重整催化剂。 通过再循环到流化床还原炉中或通过引入第二流化床还原炉，在重整反应中部分再氧化的还原铁再次被还原成完全还原的铁。

公开(公告)号：US4527615A

公开(公告)日：1985-07-09

申请号：US469709

申请日：1983-02-25

申请人： Kiichi Narita ,  Takasuke Mori ,  Kenzo Ayata ,  Jun Miyazaki ,  Takahiko Fujimoto ,  Hitoshi Nakata

发明人： Kiichi Narita ,  Takasuke Mori ,  Kenzo Ayata ,  Jun Miyazaki ,  Takahiko Fujimoto ,  Hitoshi Nakata

IPC分类号： B22D11/04 ,  B22D11/045 ,  B22D11/10 ,  B22D11/115 ,  B22D27/02

CPC分类号： B22D11/115 ,  B22D11/045

摘要： An electromagnetic within-mold stirring method and apparatus wherein electromagnetic stirring is imparted to molten steel passing through a mold, under the following conditions where the maximum flux density (in gauss) of a magnetic field induced by an electro-magnetic coil ranges from 1045.e.sup.-0.16f to 2054.e.sup.-0.12f (f: frequency, 1-15 Hz) and the place of the maximum magnetic flux density is within the range of 350 mm from the junction between the pouring nozzle and the mold in the direction of drawing of the cast-piece.

摘要翻译： 在电磁线圈感应的磁场的最大磁通密度（高斯））范围为1045的以下条件下，对通过模具的钢水赋予电磁搅拌的电磁式模内搅拌方法和装置。 e-0.16f至2054.e-0.12f（f：频率，1-15Hz）和最大磁通密度的位置在从倾倒喷嘴和模具之间的接合处在350mm的范围内 绘制铸件。

公开(公告)号：US4378994A

公开(公告)日：1983-04-05

申请号：US223586

申请日：1981-01-09

申请人： Kiichi Narita ,  Shinichi Inaba ,  Masakata Shimizu ,  Kenichi Okimoto ,  Isao Kobayashi

发明人： Kiichi Narita ,  Shinichi Inaba ,  Masakata Shimizu ,  Kenichi Okimoto ,  Isao Kobayashi

IPC分类号： C21B5/00 ,  C21B7/24

CPC分类号： C21B7/24 ,  C21B5/008

摘要： A method for estimating the geographical distribution of a cohesive zone in a blast furnace which is intermittently charged with an iron ore material to produce molten iron substantially in a continuous manner is disclosed. The method comprises altering the whole or part of the composition of the charging iron ore material at a certain time point, measuring variations in the composition of produced molten iron ore slag over a given time period, and estimating the shape of the cohesive zone in the furnace on the basis of a pattern of variation of one selected component and the speed of gravitational descent of the charged material through the furnace.

摘要翻译： 公开了一种用于估计高炉内凝聚区的地理分布的方法，其间歇地带有铁矿石材料以基本上连续的方式产生铁水。 该方法包括在特定时间点改变装料铁矿石材料的组成的全部或部分，测量在给定时间段内产生的铁水矿渣的组成的变化，以及估计在 基于一个选定组分的变化模式和通过炉的带电材料的重力下降速度的炉子。

公开(公告)号：US4195823A

公开(公告)日：1980-04-01

申请号：US919687

申请日：1978-06-27

申请人： Kiichi Narita ,  Takasuke Mori ,  Takamichi Ito

发明人： Kiichi Narita ,  Takasuke Mori ,  Takamichi Ito

IPC分类号： B01F13/02 ,  F27D3/00 ,  F27D3/16 ,  F27D27/00 ,  C21C7/00 ,  C21B7/16

CPC分类号： F27D27/00 ,  B01F13/0216 ,  F27D2003/0087 ,  F27D27/005 ,  F27D3/16

摘要： A method of agitating a bath of melted metal for treating the same by blowing gas into a one piece columnar body of such melted metal disposed in the bath to cause the apparent specific gravity of the columnar body to be reduced and to thereby be hydrostatically lifted, and returning the lifted portion of the melted metal to the bath by pouring the same with a splashing effect onto the free surface of the bath, in a manner to continuously change the pouring position on the free surface of the bath, thereby causing improved agitation of the bath, and especially improved contact and mixing of the melted metal and a treating agent generally floating on the free surface of the bath.

摘要翻译： 通过将熔融金属的熔融液吹入设置在槽中的这种熔融金属的一体式柱状体中来搅拌熔融金属的浴来进行处理，使柱状体的表观比重降低，由此被液压地提升， 并且通过将熔融金属的提升部分以溅射效果倾倒在浴槽的自由表面上，以使连续地改变浴的自由表面上的倾倒位置的方式将熔融金属的提升部分返回到浴中， 并且特别地改善熔融金属与通常漂浮在浴的自由表面上的处理剂的接触和混合。

公开(公告)号：US4170139A

公开(公告)日：1979-10-09

申请号：US902450

申请日：1978-05-03

申请人： Kiichi Narita ,  Hiroshi Hara ,  Masayuki Taniguchi ,  Masaru Yamaguchi ,  Iwao Matumoto

发明人： Kiichi Narita ,  Hiroshi Hara ,  Masayuki Taniguchi ,  Masaru Yamaguchi ,  Iwao Matumoto

IPC分类号： G01N1/14

CPC分类号： G01N1/1409

摘要： A sampling device for a quantitative determination of hydrogen in molten metal, which includes a material in which hydrogen is relatively non-diffusible during testing or readily soluble during sampling and a refractory vessel housing this material. This refractory vessel is sealed so as to maintain a vacuum or negative (reduced) pressure therein, and is provided with a thin-walled aspirating portion which is readily destroyed by an external pressure.

摘要翻译： 用于定量测定熔融金属中的氢的采样装置，其包括在测试期间氢气相对不可扩散的材料，以及在采样过程中容易溶解的材料和容纳该材料的耐火容器。 该耐火容器被密封以便在其中保持真空或负（减小）的压力，并且设置有容易被外部压力破坏的薄壁抽吸部分。

公开(公告)号：US4515203A

公开(公告)日：1985-05-07

申请号：US561149

申请日：1983-12-14

申请人： Kiichi Narita ,  Takasuke Mori ,  Kenzo Ayata

发明人： Kiichi Narita ,  Takasuke Mori ,  Kenzo Ayata

IPC分类号： B22D11/00 ,  B22D11/04 ,  B22D11/115 ,  B22D11/12 ,  B22D27/02

CPC分类号： B22D11/122 ,  B22D11/115

摘要： A continuous steel casting process adapted to produce steel castings of satisfactory quality with less center segregations is described. A molten steel is electromagnetically stirred in at least two of three locations, viz., a casting mold and intermediate and final solidifying zones of a continuously cast strand. In the casting mold, is applied a magnetic field induced by alternate current of a frequency f=1.5.about.10 Hz and having G in the range of 195.times.e.sup.-0.18f .about.1790.times.e.sup.-0.2f at the inner surface of the casting mold. The intermediate solidifying zone employs a magnetic field induced by alternate current of a frequency f=1.5.about.10 Hz and having a magnetic flux density G in the range of 195.times.e.sup.-0.18f .about.1790.times.e.sup.-0.2f at the surface of the strand or a magnetic field induced by alternate current of a frequency f=50.about.60 Hz and having a magnetic flux density G in the range of 0.6.times.10.sup.6 /(D-107).sup.2 .about.1.8.times.10.sup.6 /(D-100).sup.2 (in which D=the thickness of a solidified shell layer of the strand) at the surface of the strand. For electromagnetic stirring in the final solidifying zone, a magnetic field induced by alternate current of a frequency f=1.5.about.10 Hz and having a magnetic flux density in the range of 895.times.e.sup.-0.2f .about.2137.times.e.sup.-0.2f is applied.

摘要翻译： 描述了一种连续铸钢工艺，适用于生产具有较少中心偏析的满意质量的钢铸件。 在三个位置中的至少两个，即铸模和连续铸造股线的中间和最终固化区域中的钢铁中进行电磁搅拌。 在铸模中，在铸模的内表面施加由频率f = 1.5DIFFERENCE 10Hz的交流电流感应的磁场，并且具有在195xe-0.18f DIFFERENCE 1790xe-0.2f范围内的G。 中间凝固区采用由频率f = 1.5DIFFERENCE 10Hz的交流电流感应的磁场，并且具有在线束表面处的195xe-0.18f DIFFERENCE 1790xe-0.2f范围内的磁通密度G或磁 频率f = 50差60Hz，磁通密度G在0.6×10 6 /（D-107）2范围内的交变电流引起的磁场差异1.8×106 /（D-100）2（其中D = 在该股线的表面处的股线的固化壳层的厚度）。 对于最终凝固区域中的电磁搅拌，施加由频率f = 1.5DIFFERENCE 10Hz的交流电流引起的磁通密度在895xe-0.2f差异2137xe-0.2f范围内的磁场。