公开(公告)号：US4016923A

公开(公告)日：1977-04-12

申请号：US607123

申请日：1975-08-20

申请人： Hermann Maas ,  Georg VON Bormann

发明人： Hermann Maas ,  Georg VON Bormann

IPC分类号： B22D23/10 ,  C22B9/18 ,  C22B9/193 ,  B22D23/02

CPC分类号： C22B9/18

摘要： A process for hot topping by electro-slag-remelting in which before or before and during hot-topping a portion of the liquid remelting slag in the mold is removed in order to achieve a hot topping of the ingot under a reduced amount of slag.

摘要翻译： 一种通过电渣重熔的热顶的方法，其中在热顶部之前或之前和期间，一部分液体再熔渣在模具中被去除，以便在减少量的炉渣下实现锭的热顶。

公开(公告)号：US4104057A

公开(公告)日：1978-08-01

申请号：US692758

申请日：1976-06-04

申请人： Hermann Maas ,  Franz-Josef Hahn

发明人： Hermann Maas ,  Franz-Josef Hahn

IPC分类号： C21C7/068 ,  C21C7/10 ,  C22C33/00

CPC分类号： C21C7/0685 ,  C21C7/10

摘要： A low carbon high chromium alloyed steel is made by an underpressure treatment wherein a steel melt with a high chromium and carbon content is supplied with a gaseous decarbonization agent while it is maintained at an underpressure. At the beginning of the underpressure treatment the steel flows upwardly from a ladle through an inlet into a reaction vessel and no decarbonization agent is supplied. In a second phase of the treatment a high quantity of decarbonization agent is added directly to the melt which flows upwardly from the ladle into the reaction vessel. In a third treatment phase a small quantity of decarbonization is supplied. The melt is subsequently deoxidized and alloy corrected and it is then poured off from the reaction vessel. The apparatus includes a reaction vessel which has a downwardly extending inlet connected to the ladle and an outlet spaced from the inlet extending down into the ladle within the melt thereof. The inlet includes means for directing a decarbonization agent directly into the inflowing melt at the inlet. The apparatus includes a downwardly extending oxygen blow lance which is sealed at its entrance into the top of the vessel and which is water cooled by a surrounding water cooling jacket system. The vessel also includes an inlet for additional alloy materials.

摘要翻译： 通过负压处理制造低碳高铬合金钢，其中具有高铬和碳含量的钢熔体在维持在负压下被供给气态脱碳剂。 在负压处理开始时，钢从浇包通过入口向上流入反应容器中，并且不提供脱碳剂。 在第二阶段的处理中，将大量脱碳剂直接加入到从浇包向上流入反应容器的熔体中。 在第三处理阶段，提供少量脱碳。 然后将熔体脱氧并合并校正，然后将其从反应容器中倒出。 该装置包括反应容器，该反应容器具有连接到钢包的向下延伸的入口，以及与在其熔体内向下延伸到钢包中的入口间隔开的出口。 入口包括用于将脱碳剂直接引入入口处的流入熔体的装置。 该装置包括一个向下延伸的氧气喷枪，其在其入口处密封在容器的顶部，并且由周围的水冷套管系统水冷却。 该容器还包括用于附加合金材料的入口。

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。