Ald Vacuum Technologies Ag

Thomas Ruppel

Franz Hugo

Harald Scholz

Alok Choudhury

Matthias Blum

Georg Jarczyk

Alfred Henn

Peter Busse

Hans-Gunther Fellmann

Hans G&uuml;nther Fellmann

Molds ( ) with annular mold parts ( ) divided by at least one plane of division (E&mdash;E) and forming a plurality of cavities ( ) disposed at least substantially radially to a centrifugation axis (A&mdash;A), serve for the production of precision castings by centrifugal casting, especially of parts made of materials containing titanium for internal combustion engines, the molds ( ) and a casting system being contained in a closed chamber. To automate production, at least one mold part ( ) is made to rotate in its own rotational guide, and two mold parts ( ) together with the corresponding rotational guides are brought to a closed position for the casting and solidification and to an open position for the removal of the precision castings. When cast, the precision castings are preferably joined together at their radially inward pointing ends by a circumferential ring of the solidified metal and thus a circle of castings can be removed from the opened mold by a manipulating system.

Method and apparatus for the production of precision castings by centrifugal casting

A sealed evacuatable crucible (1) for inductive melting of metals or other electrically conductive materials, including a plurality of palisades (2,2', . . . ) which are arranged parallel to one another, and for enclosing the melt and forming the crucible wall, and having a crucible base part (3) which carries the palisades (2,2', . . . ), and having an induction coil (18) which is wound around the palisades (2,2', . . . ) from outside in direct manner distanced therefrom, and through which there flows an alternating current and which is movable in a vertical direction relative to the crucible (1), and having in the crucible base part (3) a discharge opening (25) which is closable by means of a stopper rod (13), there is provided below the crucible base part (3) an evacuatable chamber (10) which is formed of two parts (11, 12,) for receiving a vessel (14) for collecting the molten charge, which is placed below the discharge opening (25), wherein the lower chamber part (12) rests on the transporting surface of a lift-truck (16) and is movable therefrom towards the upper chamber part (11).

Sealed evacuatable crucible for inductive melting or superheating

Growing community of inventors

Bad Soden-Salmünster, Germany

Thomas Ruppel