-
公开(公告)号：US4389249A
公开(公告)日：1983-06-21
申请号：US370908
申请日：1982-04-22
申请人： Michael O. Holowaty , Ian F. Hughes , John Lude
发明人： Michael O. Holowaty , Ian F. Hughes , John Lude
CPC分类号： B22D1/00 , C21C7/0043
摘要： Alloying ingredients are added as shot to a pouring stream of molten steel flowing from a ladle to a casting mold. The size of the shot is controlled to enhance the recovery and uniformity of distribution in the steel of the alloying ingredients.
摘要翻译： 将合金成分加入到从钢包流入铸模的钢水倾倒流中。 控制射击的尺寸以增强合金成分钢中的分布恢复和均匀性。
-
公开(公告)号：US4331711A
公开(公告)日：1982-05-25
申请号：US936978
申请日：1978-08-25
CPC分类号： B22F9/04 , B22F1/02 , C21C1/10 , C23C24/045 , Y10T428/2991
摘要： Salt-coated magnesium particles, useful as desulfurizing agents in steel making, are prepared by impacting onto magnesium particles a very fine salt powder, such as in a ball-mill, then screening to obtain 10-65 mesh size particles containing about 80% to about 95% Mg by weight.
摘要翻译： 在制钢中用作脱硫剂的盐包覆的镁颗粒通过将诸如在球磨机中的非常细的盐粉末的镁颗粒冲击，然后筛选得到含有约80％至约10- 约95％重量的Mg。
-
83.发明授权
公开(公告)号：US4308056A
公开(公告)日：1981-12-29
申请号：US143766
申请日：1980-04-25
CPC分类号： B22D1/00 , C21C1/02 , C21C7/0056 , C21C7/06
摘要： Solid substances are introduced into a bath of molten metal by pushing a hollow metal tube filled with the solid substance, through a tubular former that imparts a spiral shape to the carrier tube. The spiral rotates about a vertical axis as it descends into the bath of molten metal.
摘要翻译： 通过将填充有固体物质的中空金属管通过向载体管施加螺旋形状的管状成形体将固体物质引入熔融金属浴中。 当螺旋下降到熔融金属浴中时，螺旋绕垂直轴旋转。
-
公开(公告)号：US4289533A
公开(公告)日：1981-09-15
申请号：US108060
申请日：1979-12-28
申请人： Koki Gunji , Takehiro Dan
发明人： Koki Gunji , Takehiro Dan
CPC分类号： C22C21/00
摘要： A deoxidizing agent for molten steel, which is an alloy of aluminum and at least 2 mole %, based on the aluminum, of an element of Group IIIa of the periodic table. In steel which has been deoxidized with this deoxidizer, an oxide inclusion based on the deoxidizer is not dendritic but spherical, and does not cause defects to steel products. Misch metal is especially preferred as the Group IIIa metal.
摘要翻译： 一种用于钢水的脱氧剂，其是铝的合金和至少2摩尔％的基于铝的元素周期表IIIa族的元素。 在用脱氧剂脱氧的钢中，基于脱氧剂的氧化物夹杂物不是树枝状而是球形，并且不会导致钢产品的缺陷。 特别优选混合金属作为IIIa族金属。
-
公开(公告)号：US4261735A
公开(公告)日：1981-04-14
申请号：US132529
申请日：1980-03-21
申请人： Karl E. Oberg
发明人： Karl E. Oberg
CPC分类号： C21C7/064
摘要： In an injection-metallurgical process performed in a ladle, lime is injected during a first phase after the deoxidation, removing the main part of the sulphur existing in the melt. During a second phase thereafter calcium-silicon, calcium-carbide or calcium-cyanamide is injected, which has a devised impact upon the morphology of the remaining inclusions. At the same time the flowability of the steel is improved, which is particularly important in the production of deep-drawing steels.
摘要翻译： 在钢包中进行的注射冶金工艺中，在脱氧后的第一阶段注入石灰，除去存在于熔体中的硫的主要部分。 在第二阶段期间，注入钙 - 硅，碳化钙或钙 - 氰胺，其对剩余夹杂物的形态设计影响。 同时钢的流动性得到改善，这对于深冲钢的生产尤为重要。
-
公开(公告)号：US4085252A
公开(公告)日：1978-04-18
申请号：US677545
申请日：1976-04-16
CPC分类号： B22D11/11 , B22D17/20 , Y10T428/12222 , Y10T428/12951
摘要： The invention relates to a composite wire with a base of cerium and/or rare earths such as mischmetal and intended for insertion into a bath of molten steel so as to de-oxidize and de-sulphurize the steel. When this composite wire is inserted into molten steel, it controls certain inclusions by converting manganese sulphides to sulphides of rare earths, thereby improving the resilience characteristics of the steel. The composite wire is obtained by enclosing the mischmetal wire in a metallic sheath. The diameter of the wire, the thickness of the sheath and the speed of injection are determined in accordance with characteristic curves representing particular proportional relations.
摘要翻译： 本发明涉及一种具有铈和/或稀土的基底的复合线，例如混合金属，并用于插入钢水浴中，以使钢脱氧和脱硫。 当该复合线插入钢水中时，通过将硫化锰转化为稀土硫化物来控制某些夹杂物，从而提高钢的回弹性能。 复合线材通过将金属线材包裹在金属护套中而获得。 根据表示特定比例关系的特性曲线确定线的直径，护套的厚度和注射速度。
-
公开(公告)号：US4067729A
公开(公告)日：1978-01-10
申请号：US719599
申请日：1976-09-01
申请人： Wolfgang Holzgruber
发明人： Wolfgang Holzgruber
CPC分类号： C21C1/02
摘要： The present invention provides novel desulfurizing agents and a process for desulfurizing liquid iron melts and in particular pig iron melts in the temperature range of between about 1240.degree. C to 1400.degree. C by injecting into the melt, by means of a carrier gas, a prefused or sintered, granulated or pelletized desulfurizing agent comprising a calcium containing material having a liquidus temperature of less than about 1400.degree. C.
摘要翻译： 本发明提供了新型脱硫剂和一种在约1240℃至1400℃的温度范围内通过注入熔体中的液态铁熔体，特别是生铁熔体脱硫的工艺，借助于载气，预制的 或烧结，造粒或造粒的脱硫剂，其包含液相线温度低于约1400℃的含钙材料。
-
公开(公告)号：US3999979A
公开(公告)日：1976-12-28
申请号：US634345
申请日：1975-11-24
申请人： Peter Outhwaite , Neil Pigott
发明人： Peter Outhwaite , Neil Pigott
CPC分类号： C22B9/10 , C21C7/064 , Y02P10/143
摘要： A system for desulphurizing molten iron in a two-zone vessel located at the foot of an inclined electromagnetic elevator. The molten metal together with added desulphurizing agent is agitated in the first zone of the vessel to thoroughly disperse the desulphurizing agent in the metal. The metal then passes to the second zone of the vessel where it is maintained in a quiescent state relative to the metal in the first zone, so that the slag floats to the surface of the metal and can be removed. The desulphurized metal is removed from the second zone of the vessel by means of the inclined electromagnetic conveyor.
摘要翻译： 一种用于在位于倾斜电磁电梯脚部的两区域容器中对铁水进行脱硫的系统。 将熔融金属与添加的脱硫剂一起在容器的第一区域中搅拌，以将脱硫剂彻底分散在金属中。 然后金属进入容器的第二区域，在第二区域中，其相对于第一区域中的金属维持在静止状态，使得炉渣漂浮到金属表面并且可以被去除。 通过倾斜的电磁输送机将脱硫金属从容器的第二区域移除。
-
公开(公告)号：US3998625A
公开(公告)日：1976-12-21
申请号：US631347
申请日：1975-11-12
申请人： Peter J. Koros
发明人： Peter J. Koros
摘要： Desulfurization of molten ferrous metals such as pig iron is facilitated through the injection of a particulate fluidized mixture of non-oxidizing material and magnesium-containing reactive material by in-line mixing in a conveying line and consequent sub-surface injection. The amount of the contained magnesium, injection time, and contained magnesium injection rate are controlled to maximize process efficiency.
摘要翻译： 通过在输送管线中进行在线混合，从而通过注入非氧化性材料和含镁反应性材料的颗粒流化混合物，从而促进了诸如生铁的熔融黑色金属的脱硫。 控制镁的含量，注入时间和含镁注入速率，以最大化工艺效率。
-
公开(公告)号：US3992195A
公开(公告)日：1976-11-16
申请号：US569150
申请日：1975-04-18
申请人： Wilhelm Klapdar , Helmut Richter , Heinrich-Wilhelm Rommerswinkel , Edgar Spetzler , Jochen Wendorff
发明人： Wilhelm Klapdar , Helmut Richter , Heinrich-Wilhelm Rommerswinkel , Edgar Spetzler , Jochen Wendorff
CPC分类号： C21C7/0037 , C21C7/064
摘要： A process for the production of steel with increased ductility in which a sulfur-containing steel melt is deoxidized and, if desired, is supplied with alloying elements, the deoxidized melt is treated with calcium as part of a purification action simultaneously reducing the sulfur content and the reaction is carried out in a casting ladle having a lining free from siliceous oxides. The melt is covered with a synthetic slag free from siliceous oxides and the calcium-containing substance is introduced in fine-grain particulate form into the melt in a carrier gas at a level at least 2000 mm below the melt surface and at a rate which is less than the maximum rate at which the calcium-containing substance is capable of reacting with the melt.
-
-
-
-
-
-
-
-
-
搜索结果
278 条记录 (耗时 0.017 秒)
