Casting process for railcar coupler throwers

摘要

A method for casting at least one thrower for a railcar coupler includes creating a mold box that is vertically parted in halves, each half defining a side of at least one thrower cavity and that includes at least a portion of a sprue at a location above the at least one thrower cavity, the at least one thrower cavity also being oriented vertically; pouring molten metal into the mold box through the sprue and into the at least one thrower cavity while the mold is oriented vertically; and shaking out the mold box to release the at least one thrower after the at least one thrower has cooled. Creating the mold box may be executed through a cold shell process. The halves of the mold box may include reflective images of the sides of two thrower cavities and an ingate connected between the sprue and one of the two thrower cavities, such that the molten metal passes through each of the ingates into respective hubs of the two thrower cavities, to cast the two throwers simultaneously.