公开(公告)号：US4661151A

公开(公告)日：1987-04-28

申请号：US835554

申请日：1986-03-03

申请人： Koichi Endoh ,  Toshiyuki Kaneko ,  Hideo Yaoi ,  Seiji Aso ,  Yasuo Obana ,  Hideyuki Takahama

发明人： Koichi Endoh ,  Toshiyuki Kaneko ,  Hideo Yaoi ,  Seiji Aso ,  Yasuo Obana ,  Hideyuki Takahama

IPC分类号： C21C7/064 ,  C21C7/02

CPC分类号： C21C7/0645

摘要： A treating agent of molten steel according to the present invention is used for desulfurization molten steel for desulfurizing it in a reaction vessel which is lined with a basic refractory containing MgO, and consists of CaO, CaF.sub.2 and MgO and unavoidable impurities contains from 10 to 60% by weight of MgO, and has a weight ratio of {(% CaF.sub.2)/((% CaO)+(% CaF.sub.2))}.times.100(%) of from 20 to 80%.Said agent is injected with the aid of inert carrier gas into the molten steel and floats toward a portion of the molten steel bath essentially free of slag. Another treating agent essentially consisting of CaO and CaF.sub.2 may be also injected prior and/or subsequent to injection of said agent, so as to decrease inclusions. The inert gas may also be injected after injection of said agent(s).

摘要翻译： 根据本发明的钢水处理剂用于脱硫用的脱硫钢水，该反应容器内衬有含有MgO的碱性耐火材料，由CaO，CaF 2和MgO组成，不可避免的杂质含有10〜60 重量％的MgO，重量比为{（CaF2）/（（CaO）+（％CaF2））}×100（％）为20〜80％。 所述试剂借助于惰性载气注入钢水中，并向基本上不含渣的钢水浴的一部分漂浮。 基本上由CaO和CaF 2组成的另一种处理剂也可在注入所述试剂之前和/或之后注入，以便减少夹杂物。 惰性气体也可以在注入所述试剂之后注入。

公开(公告)号：US4424855A

公开(公告)日：1984-01-10

申请号：US281508

申请日：1981-07-08

申请人： Osamu Tsubakihara ,  Kazuhide Kameyama ,  Hideyuki Takahama ,  Kuniaki Sakai ,  Akira Tsuneoka

发明人： Osamu Tsubakihara ,  Kazuhide Kameyama ,  Hideyuki Takahama ,  Kuniaki Sakai ,  Akira Tsuneoka

IPC分类号： B22D11/124 ,  B22D11/128

CPC分类号： B22D11/1246

摘要： In the equipment for continuous casting of steel, an improved method for cooling a continuous cast slab or the like by which a hot slab can be transferred directly to a rolling step. In accordance with the improved method, the continuous cast slab is subjected to indirect cooling by means of cooling a series of guide rolls with a gas-liquid mist, or if the equipment length is limited, the slab is subjected to direct cooling by means of a gas-liquid mist cooling step, and then to the indirect cooling step in a subsequent process.

摘要翻译： 在用于连续铸钢的设备中，用于冷却连续铸造板坯等的改进方法可以将热板坯直接转移到轧制步骤。 根据改进的方法，连续铸造板坯通过冷却具有气液雾的一系列导向辊进行间接冷却，或者如果设备长度受到限制，则通过以下方式对板坯进行直接冷却： 气 - 液雾冷却步骤，然后在随后的过程中进行间接冷却步骤。

公开(公告)号：US4905753A

公开(公告)日：1990-03-06

申请号：US203980

申请日：1988-06-08

申请人： Kiyomi Shio ,  Kaname Wada ,  Katsuhiro Maeda ,  Noriyuki Kanai ,  Hideyuki Takahama ,  Keiichi Katahira ,  Tsuyoshi Saeki

发明人： Kiyomi Shio ,  Kaname Wada ,  Katsuhiro Maeda ,  Noriyuki Kanai ,  Hideyuki Takahama ,  Keiichi Katahira ,  Tsuyoshi Saeki

IPC分类号： B22D11/06

CPC分类号： B22D11/0605

摘要： A twin belt continuous casting machine for producing thin slabs includes a pair of belts and a pair of edge dams for forming a metal pool, which are movable in the transverse direction of the belt. A plurality of cooling/heating chambers partitioned in the transverse direction of the belt are provided on the rear surface of the belt in the vicinity of respective side end portions of the belts. A plurality of supporting members which are capable of pressing the rear surface of the belt are respectively provided in the plurality of cooling/heating chambers. The movement of the edge dams is synchronized with the operation of the plurality of supporting members. A fluid introduced into each of the cooling/heating chambers is changed into a heating fluid or a cooling fluid in synchronism with the movement of the edge dams.