Method for desanding castings
AssigneeGeorg Fischer Disa, Inc.
InventorsKurt Fischer, Hans Leutwiler
Life of this patent
Estimating the term…
Abstract
For desanding castings cast in moulding sand by means of at least one fluid pressure pulse acting on the sand mould, the fluid is bundled into at least one cutting jet and the latter is made to act directly on the sand mould.
Claims25
Method for desanding castings case in moulding sand in a sand mould by means of at least one fluid pressure pulse acting on the sand mould, characterized in that the fluid is bundled to a punctiform cutting jet and the cutting jet and casting are moved relative to one another.
Method according to 1, characterized in that several cutting jets are simultaneously made to act on the sand mould surface.
Method according to 1, characterized in that compressed air is used as the fluid.
Method for desanding castings cast in moulding sand in a sand mould by means of at least one fluid pressure pulse acting on the sand mould, characterized in that the fluid is bundled to a linear or lamellar cutting jet with a length roughly corresponding to the sand mould extension in the direction, and the cutting jet is made to act directly on the sand mould.
Method according to 12, characterized in that the fluid contains a solid particle.
Method according to 12, characterized in that the cutting jet is oriented under a steep angle to the sand mould surface.
Dependencies are inferred from the claim text.