Methods for removing a temporary model of a refractory mold and to remove a template temporarily temporary sprue connected to a hollow inside a cast refractory permeable to gas, and apparatus for removing a temporary model within a refractory mold

摘要

Methods for removing a temporary model of a refractory mold and to remove a temporary model connected to a temporary site within a mold hollow refractory permeable to gas, and apparatus for removing a temporary model within a refractory mold is provided with a method pa To remove a template temporary, such as wax or other material from the melt model.That resides within a refractory mold condensu00e1vel, discharging steam, such as steam condensu00e1vel as water vapor in the mould to make contact and merge the model while the exterior of the mold is subjected to a gas atmosphere such as air which condenses out of the mold.In the steam condensu00e1vel inside the mold and the outside of the atmosphere of the mold are substantially in the same pressure. Steam condensu00e1vel is condensed in the mould where the steam made contact with the model, while the exterior of the mold remains free of condensate. The steam condensate and material of the cast model are drained out of the mold.The steam condensate can be disposed within a hollow sprue initially to a temporary assembly of the model to fuse the sprue, and then into the mold to melt the models fitting of the model. The method allows the removal of materials of the temporary model of molds of any thickness and reduces the trincamento mold during the removal of the model.