Evaporative pattern for casting and casted product

Abstract

An evaporative pattern having a high strength is provided. An evaporative pattern 102 is a pattern for an evaporative casting. In the evaporative pattern 102, a reinforcing member 30 which is made of a non-evaporative material that does not evaporate by heat of a molten metal is embedded in a joint 114 which is made of an evaporative material that evaporates by the heat of the molten metal. The evaporative material is typically foam polystyrene. The strength of the foam polystyrene is low. Since the reinforcing member which is made of a material having strength higher than that of the evaporative material is embedded in the evaporative pattern 102 which is made of the foam polystyrene, the strength of the evaporative pattern 102 improves.

1 . An evaporative pattern for casting, wherein a reinforcing member made of a non-evaporative material that does not evaporate by heat of a molten metal is embedded in the evaporative pattern made of an evaporative material that evaporates by the heat of the molten metal; and
 a wire extends from the reinforcing member to outside of the evaporative pattern.   
     
     
         2 . The evaporative pattern of  claim 1 , wherein the entire reinforcing member is covered by the evaporative material. 
     
     
         3 . A casted product made by a casting using the evaporative pattern of  claim 1 , wherein the reinforcing member made of a metal that is different from a casting material is embedded in the casted product. 
     
     
         4 . The casted product of  claim 3 , wherein the casted product includes a plurality of rod members that configures a frame configured by any one of a Rahmen structure, a truss structure, and a combination structure of the Rahmen structure and the truss structure, and the reinforcing member is embedded at a joint of the frame. 
     
     
         5 . A casted product made by a casting using an evaporative pattern, wherein:
 the evaporative pattern includes a reinforcing member embedded therein, the reinforcing member being made of a non-evaporative material that does not evaporate by heat of a molten metal, and the evaporative pattern being made of an evaporative material that evaporates by the heat of the molten metal; and   the casted product includes a frame, configured by any one of a Rahmen structure, a truss structure, and a combination structure of the Rahmen structure and the truss structure and constructed by a plurality of rod members, and the reinforcing member is embedded at a joint of the frame.