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首页> 外国专利> Lost model casting models made of sublimable material in container/tank, by embedding models in sand by leaving pouring opening and pouring liquid metal into opening, and positioning cooling element in support against surfaces of model

Lost model casting models made of sublimable material in container/tank, by embedding models in sand by leaving pouring opening and pouring liquid metal into opening, and positioning cooling element in support against surfaces of model

机译：将容器中的可升华材料制成的迷失模型铸造模型，通过将模型浇注到开口中并将液态金属浇注到孔中，并将模型嵌入模型中的表面来支撑模型，从而将模型嵌入到沙子中

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The process comprises embedding models (11) in sand by leaving a pouring opening and pouring the liquid metal into the opening, positioning a cooling element (13, 14) for cooling a molded part in support against surfaces of the model, and introducing a material for absorbing heat. A cavity is formed between the cooling element and an area of the surface face of the cooling part that is not present in direct contact with the cooling element. All of the pouring openings of the model are made blind by adding web in the model and the ridge of the cooling element. The process comprises embedding models (11) in sand by leaving a pouring opening and pouring the liquid metal into the opening, positioning a cooling element (13, 14) for cooling a molded part in support against surfaces of the model, and introducing a material for absorbing heat. A cavity is formed between the cooling element and an area of the surface face of the cooling part that is not present in direct contact with the cooling element. All of the pouring openings of the model are made blind by adding web in the model and the ridge of the cooling element for sand flow between the part and the cooling element, and are plugged locally at each cavity while the cooling element has drilling at the cavities to allow the introduction of the material by flowing for absorbing heat. The heat absorbing material is a fluid type effusive material that is present in a solid form such as the form of particles and granules. The effusive material is resistant to crushing with particle size to fit the shape of desired molded part and to obtain the roughness of the skin of the desired molded part and heat conductivity and effusivity to obtain the desired cooling character, and has a temperature resistance to prevent its deformation or liquefaction during casting. The effusive material is introduced into a cavity by natural flow or injection, is recovered by emptying cavities before removal of the part and after casting, and is evacuated with the molding sand then sorted by screening, magnetism after casting.
机译：该方法包括通过留下倾倒开口并将液态金属倒入开口中将模型（11）嵌入沙子中，放置冷却元件（13、14）来冷却模制零件以支撑模型表面并引入材料吸收热量。在冷却元件和冷却部件的表面的不与冷却元件直接接触的区域之间形成空腔。通过在模型中添加腹板和冷却元件的棱线，可将模型的所有浇注孔都设为盲孔。该方法包括通过留下倾倒开口并将液态金属倒入开口中将模型（11）嵌入沙子中，放置冷却元件（13、14）来冷却模制零件以支撑模型表面并引入材料吸收热量。在冷却元件和冷却部件的表面的不与冷却元件直接接触的区域之间形成空腔。通过在模型中添加腹板和冷却元件的脊以使零件和冷却元件之间的沙子流动，使模型的所有浇注孔成为盲孔，并在每个腔体处局部堵塞，同时冷却元件在钻头上钻孔。允许通过流动吸收热量而引入材料的空腔。吸热材料是流体类型的散发性材料，其以固体形式例如颗粒和颗粒的形式存在。所述流出材料耐粉碎以适合所需成型部件的形状的粒径并获得所需成型部件的表皮的粗糙度以及导热性和散热性以获得所需的冷却特性，并且具有耐热性以防止在铸造过程中变形或液化。流出材料通过自然流动或注入引入腔中，在零件移出之前和铸造后通过排空空腔进行回收，并用型砂抽真空，然后通过筛分，铸造后的磁性进行分类。

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