公开(公告)号：US4647306A

公开(公告)日：1987-03-03

申请号：US756768

申请日：1985-07-18

申请人： Horst Abratis ,  Roman Obenaus ,  Klaus Schafer

发明人： Horst Abratis ,  Roman Obenaus ,  Klaus Schafer

IPC分类号： B22D1/00 ,  B22D41/58 ,  C22B9/05 ,  C21C7/10

CPC分类号： C22B9/05 ,  B22D1/005

摘要： In a process for the treatment of metal melts, such as steel melts, with scavenging gas in a ladle under reduced pressure, inert scavenging gas is supplied through a plurality of inlet devices, such as scavenging gas supply bricks, built into the ladle bottom. In order to produce a flow of scavenging gas of low energy loss and free of counter-flow in the region of gas bubbles ascending through the melt, at least two scavenging gas inlet devices are disposed in the bottom of the ladle at a spacing which is equal to from 0.3 to 0.8 times the internal radius of the bottom of the ladle.

摘要翻译： 在用于处理金属熔体的方法中，例如钢熔体，在减压下在钢包中具有清除气体，惰性清除气体通过内置于钢包底部的多个入口装置（例如扫气供气砖）供应。 为了在通过熔体上升的气泡区域中产生低能量损失并且没有逆流的清除气体流，至少两个清除气体入口装置以一定间隔设置在钢包的底部， 等于钢包底部内半径的0.3至0.8倍。

公开(公告)号：US4042223A

公开(公告)日：1977-08-16

申请号：US699640

申请日：1976-06-24

申请人： Hans Jurgen Langhammer ,  Horst Abratis ,  Klaus Schafer ,  Klaus-Jurgen Rendel ,  Horst Lotze

发明人： Hans Jurgen Langhammer ,  Horst Abratis ,  Klaus Schafer ,  Klaus-Jurgen Rendel ,  Horst Lotze

IPC分类号： C22B9/20 ,  B22D1/00 ,  B22D21/02 ,  C21C5/46 ,  C21C5/48 ,  C21C7/00 ,  C21C7/072 ,  F27D3/16 ,  F27D3/18

CPC分类号： C21C7/0037 ,  C21C5/4613 ,  F27D3/18

摘要： A suspension of a particulate material in a carrier medium is introduced into a molten bath through a lance which has an inlet port, an outlet port and a passage communicating the inlet port with the outlet port. The flow-through cross-sectional area of the outlet port is smaller than the flow-through cross-sectional area of the passage so that the speed of flow of the suspension through the outlet port is higher than the speed of flow of the suspension through the passage and penetration of the molten bath into the outlet port is thereby prevented. The supension is introduced into the inlet port through a conduit having a smaller flow-through cross-sectional area than the passage so that the pulsations of the solution which occur in the conduit are damped in the passage. A duct may introduce pressurized medium into the region of the outlet port to thereby loosen the particulate material accumulated in the region of the outlet port. The lance may include a metallic tube and a lyer of refractory material surrounding the same, and a ceramic tubular element may form a continuation of the metallic tube downstream of the outlet port and having the same flow-through cross-sectional area as the latter.

摘要翻译： 颗粒材料在载体介质中的悬浮液通过具有入口，出口和将入口与出口连通的通道的喷枪引入熔池中。 出口的流通横截面面积小于通道的流通横截面面积，使悬浮液通过出口的流速高于悬浮液通过的流速 从而防止了熔融浴进入出口的通道和穿透。 通过具有比通道更小的流通横截面面积的导管将超声波引入入口，使得在通道中发生在溶液中的溶液的脉动被阻尼。 管道可以将加压介质引入出口的区域，从而松开积聚在出口区域中的颗粒材料。 喷枪可以包括金属管和围绕它的耐火材料的搅拌器，并且陶瓷管状元件可以在出口下游形成金属管的延续，并具有与之相同的流通横截面积。

公开(公告)号：US5058659A

公开(公告)日：1991-10-22

申请号：US420307

申请日：1989-10-12

申请人： Horst Abratis ,  Hans-Joachim Selenz ,  Friedrich Hofer

发明人： Horst Abratis ,  Hans-Joachim Selenz ,  Friedrich Hofer

IPC分类号： B22D11/11

CPC分类号： B22D11/11

摘要： A process is provided for producing a steel bloom having a varying chemical composition in the cross-section. First, a flow of molten steel is directed into a casting chill form via a pouring pipe. Next, an alloy wire (e.g., sulphur foil, iron sulfite and other sulphur compounds) is introduced to the chill form. This alloy wire is melted in the molten steel from the upper surface of the molten steel to a maximum depth corresponding to the lower edge of the pouring pipe. The resulting steel bloom exhibits a substantially constant decreasing chemical composition in the cross-section from the outer to the center of the bloom and is easily regulated and reproduced.

摘要翻译： 提供了一种制造横截面具有不同化学组成的钢锭的方法。 首先，通过浇注管将钢水流入铸造冷却模型。 接下来，将合金丝（例如硫箔，亚硫酸铁和其它硫化合物）引入冷却形式。 这种合金丝从钢水的上表面在钢水中熔融到与浇注管的下边缘对应的最大深度。 所得到的钢坯在从花的外部到中心的横截面中表现出大体上恒定的化学成分的降低，容易调节和再现。

公开(公告)号：US3954134A

公开(公告)日：1976-05-04

申请号：US499910

申请日：1974-08-23

申请人： Hermann Maas ,  Horst Abratis ,  Claus Raeune

发明人： Hermann Maas ,  Horst Abratis ,  Claus Raeune

IPC分类号： B22D11/108 ,  B22D11/11 ,  C21C7/00 ,  C22B9/05 ,  B22D41/08 ,  B22D35/04

CPC分类号： C21C7/0056 ,  B22D11/108 ,  B22D11/11 ,  C22B9/05

摘要： An apparatus for treating metal melts during continuous casting, wherein the teeming metal is enclosed to a point below the surface of the metal pool in the continuous casting mold to avoid contact with the ambient atmosphere and the surface of the pool is covered with a layer of slag. Small volumes of purging gas are introduced in bubble form into the metal melt at the location where such metal melt begins to form a teeming jet.

摘要翻译： 一种用于在连续铸造过程中处理金属熔体的装置，其中将浇注金属封闭在连续铸造模具中的金属池表面下方的点以避免与环境大气接触，并且池的表面被覆盖有 矿渣。 在这种金属熔体开始形成喷射流的位置，将少量吹扫气体以气泡形式引入金属熔体中。