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1. 发明授权

US5249778A Gas stir plug device with visual wear indicator 失效
标题翻译：带有视觉磨损指示器的气体搅拌塞装置
公开(公告)号：US5249778A
公开(公告)日：1993-10-05
申请号：US868598
申请日：1992-04-14
申请人： Wolfgang Steichert , Dieter Vahlhaus
发明人： Wolfgang Steichert , Dieter Vahlhaus
IPC分类号： B22D1/00 , C21C5/44 , C21C5/46
CPC分类号： B22D1/005 , C21C2005/448 , C21C5/4673
摘要： A stir plug of frusto-conical shape for introducing gas into a mass of molten metal and comprising a plug having an outer core formed of a first refractory material. A wear indicator in the form of a central core comprised of a second refractory material is located within a centrally located recess in the outer core adjacent the bottom end of the plug. The central core extends from the bottom end of the plug towards the top end of the plug and is of a predetermined height less than that of the outer core. The upper end of the central core when exposed by the erosion of the stirring plug provides a visual indication of when that plug should be replaced.
摘要翻译：一种用于将气体引入熔融金属块中的截头圆锥形搅拌塞，其包括具有由第一耐火材料形成的外芯的塞子。由第二耐火材料构成的中心芯形式的磨损指示器位于邻近插头底端的外芯中的位于中心的凹部内。中心芯从插头的底端延伸到插头的顶端，并且具有比外芯的预定高度小的预定高度。当中心芯的上端由于搅拌塞的侵蚀而暴露时，可以提供何时更换插头的可视指示。

2. 发明授权

US5104097A Gas stir plugs with slots and method of making the same 失效
标题翻译：带插槽的气体搅拌塞及其制作方法
公开(公告)号：US5104097A
公开(公告)日：1992-04-14
申请号：US583058
申请日：1990-09-14
申请人： Erich Naujokat , H. Dieter Vahlhaus , H. Wolfgang Steichert , H. Walter Klein
发明人： Erich Naujokat , H. Dieter Vahlhaus , H. Wolfgang Steichert , H. Walter Klein
IPC分类号： B22D1/00
CPC分类号： B22D1/005
摘要： A stirring plug for introducing gas into a mass of molten metal and a method of making the plug. The plug is of a generally frusto-conical shape having a central axis and includes plural elongated slots formed of generally smooth walls extending between the top and bottom ends of the plug and arranged in a frustum array. Each of the slots has a predetermined cross sectional area in any plane perpendicular to the central axis. The method comprises providing a member having a hollow frusto-conical shape cavity and inserting plural wax coated steel tapes or plastic tapes in a frustom array therein. The cavity is then filled with a refractory castable mix and it is allow to air set to form a frusto-conical body. That body is then heated to an elevated temperature to form a dense ceramic plug. In the case of the plastic tapes the heating of the mix causes the tapes to melt or sublime to form the slots. In the case of the steel tapes after the mix has air set it is heated to a modest heat to melt the wax on the tapes so that they can be pulled from the mix to form the slots.
摘要翻译：用于将气体引入熔融金属块的搅拌塞和制造塞子的方法。塞子具有大致截头圆锥形的形状，具有中心轴线，并且包括多个细长槽，其形成为大致平滑的壁，该壁在插头的顶端和底端之间延伸并且设置在平截头体阵列中。每个槽在垂直于中心轴的任何平面中具有预定的横截面面积。该方法包括提供具有中空的截头圆锥形空腔的构件，并将多个涂有蜡的钢带或塑料带插入其中。然后用耐火浇注混合物填充空腔，并且允许空气设定以形成截头圆锥体。然后将该身体加热到升高的温度以形成致密的陶瓷塞子。在塑料带的情况下，混合物的加热导致带子熔化或升华以形成槽。在混合物具有空气固定之后的钢带的情况下，将其加热至适度的热量以熔化带上的蜡，使得它们可以从混合物中拉出以形成槽。

3. 发明授权

US4257542A Slide gate for containers holding liquid metal melt 失效
标题翻译：用于容纳液态金属熔体的容器的滑动门
公开(公告)号：US4257542A
公开(公告)日：1981-03-24
申请号：US882487
申请日：1978-03-01
申请人： Walther Aller , Eckehard Eisermann , Dieter Vahlhaus , Gerd Konig
发明人： Walther Aller , Eckehard Eisermann , Dieter Vahlhaus , Gerd Konig
IPC分类号： B22D11/10 , B22D37/00 , B22D41/30 , B22D41/36 , C04B35/01 , C04B35/101 , C04B35/66 , C04B41/47 , C04B41/82 , B22D41/08 , B22D45/00
CPC分类号： C04B41/009 , B22D41/30 , C04B35/013 , C04B35/101 , C04B35/66 , C04B41/478 , C04B41/82 , C04B2111/0087
摘要： An improvement in a slide gate for a container holding molten metal comprising a slide housing and refractory bodies made of a refractory composition, which refractory bodies have been impregnated with carbon-containing media, the improvement residing in employing as the carbon-containing medium an oil containing less than 10% by weight pitch.
摘要翻译：用于容纳熔融金属的容器的滑动门的改进，其包括滑动壳体和由耐火材料构成的耐火材料体，该耐火材料已经被含碳介质浸渍，改进在于使用作为含碳介质的油含有小于10重量％的沥青。

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