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：US4178175A

公开(公告)日：1979-12-11

申请号：US892417

申请日：1978-03-31

申请人： Kiichi Narita ,  Takasuke Mori ,  Takamichi Ito

发明人： Kiichi Narita ,  Takasuke Mori ,  Takamichi Ito

IPC分类号： B01F13/02 ,  C21C7/072 ,  F27D3/00 ,  F27D3/16 ,  F27D27/00 ,  C21C7/00

CPC分类号： F27D27/00 ,  B01F13/0216 ,  C21C7/072 ,  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 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： 通过将气体吹入设置在浴中的这种熔融金属的柱状体中来搅拌熔融金属浴以进行处理，以减少柱状体的表观比重，从而进行液压提升，并返回 通过将熔融金属的升起部分以溅溅效果倾倒到浴的自由表面上，以连续改变浴的自由表面上的倾倒位置，从而改善浴的搅动 ，并且特别地改进了熔融金属和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：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：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：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：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。

公开(公告)号：US4298376A

公开(公告)日：1981-11-03

申请号：US139655

申请日：1980-04-14

申请人： Kiichi Narita ,  Takasuke Mori ,  Kenzo Ayata ,  Takehisa Makino

发明人： Kiichi Narita ,  Takasuke Mori ,  Kenzo Ayata ,  Takehisa Makino

IPC分类号： C21C7/10

CPC分类号： C21C7/10

摘要： A method for treating molten steel utilizing an induction coil, a ladle, a treating vessel and at least one passage pipe interconnecting the ladle and the treating vessel which includes the steps of lifting up a part of the molten steel from the ladle to the treating vessel disposed over the ladle through adjustment of molten steel composition and/or degassing in the treating vessel, thereafter returning the molten steel to the ladle through the at least one passage pipe, circulating or reciprocating the molten steel between the ladle and the treating vessel while heating the molten steel by the induction coil disposed around the at least one passage pipe and operating the linear motor at a frequency of 50 to 60 cycles.

摘要翻译： 一种利用感应线圈，钢包，处理容器和连接钢包和处理容器的至少一个通道管来处理钢水的方法，包括将钢水的一部分从钢包提升到处理容器的步骤 通过调整钢水组合物和/或处理容器中的脱气而放置在钢包上方，然后通过至少一个通道管将钢水返回到钢包中，使钢水在处理容器之间循环或往复运动，同时加热 所述钢水通过所述感应线圈设置在所述至少一个通道管周围，并以50至60个循环的频率操作所述线性电动机。

公开(公告)号：US4570697A

公开(公告)日：1986-02-18

申请号：US571694

申请日：1984-01-18

申请人： Takasuke Mori ,  Jun Miyazaki ,  Hitoshi Nakata

发明人： Takasuke Mori ,  Jun Miyazaki ,  Hitoshi Nakata

IPC分类号： B22D11/16 ,  B22D11/04 ,  B22D11/126 ,  B22D11/20

CPC分类号： B22D11/202

摘要： A method of treating a continuous cast strand in a horizontal continuous casting process wherein when the level of molten steel within a tundish becomes lower than a prescribed level at a portion near the upper surface of a tundish nozzle at final stage of the casting process, drawing of the continuous cast strand is discontinued, and after a lapse of a specified time the drawing of the continuous cast strand is again performed and the strand is broken at the feed nozzle.

摘要翻译： 一种在水平连续铸造工艺中处理连续铸造钢绞线的方法，其中当中间包中的钢水水平在铸造过程的最后阶段在中间包喷嘴的上表面附近的部分处低于规定水平时， 连续铸造线材断开，经过规定时间后再次进行连续铸造线材的拉拔，并且在进料喷嘴处断裂股线。

公开(公告)号：US4615376A

公开(公告)日：1986-10-07

申请号：US715830

申请日：1985-03-25

申请人： Takasuke Mori ,  Kenzo Ayata ,  Takahiko Fujimoto

发明人： Takasuke Mori ,  Kenzo Ayata ,  Takahiko Fujimoto

IPC分类号： B22D11/10 ,  B22D11/103 ,  B22D11/18 ,  B22D37/00 ,  B22D41/08 ,  B22D27/02

CPC分类号： B22D11/18 ,  B22D41/08

摘要： A device for electromagnetically regulating the pouring rate in continuous casting, including a cylindrical molten steel container having a molten steel inlet formed in a peripheral section of an upper surface thereof and a molten steel outlet formed in central section of a lower surface thereof to pour the molten steel into a mold, and electromagnetic coils disposed around the side wall of the molten steel container so as to generate a rotating magnetic field perpendicularly to the side wall. The pouring rate is determined by the interactive function of the head of the molten steel in the tundish disposed above the molten steel container with the outlet thereof joined to the inlet of the molten steel container, the intensity of the rotating magnetic field, namely, the magnitude of the electric current supplied to the electromagnetic coils, and the size of the molten steel outlet, namely, a replaceable pouring nozzle.

摘要翻译： 一种用于电磁调节连续铸造中的浇注速度的装置，包括一个在其上表面的周边部分形成有钢水入口的圆柱形钢水容器，以及形成在其下表面中部的钢水出口， 将钢水注入模具，以及围绕钢水容器的侧壁设置的电磁线圈，以产生垂直于侧壁的旋转磁场。 浇注速度由钢水容器的钢水容器的中间包中的钢水头的相互作用决定，钢水容器的出口与钢水容器的入口接合，中间包的旋转磁场强度即 提供给电磁线圈的电流的大小以及钢水出口的尺寸，即可更换的倾倒喷嘴。