Resources Contact Us Home
Method for casting a directionally solidified article

Image Number 3 for United States Patent #7017646.

A method of casting a directionally solidified (DS) or single crystal (SX) article with a casting furnace having a heating chamber (4), a cooling chamber (5), a separating baffle (3) between the both chambers includes a first step in which the shell mould (12) is filled with liquid metal (15), and the liquid metal (15) is directionally solidified by withdrawing the shell mould (12) from the heating to the cooling chamber (4, 5). An inert gas impinges from nozzles (8) arranged below the baffle (3) on the shell mould (12) and in steep transitions in outer surface area of the shell mould (12) the flow of the inert gas (9) is reduced or even stopped and when a protruding geometrical feature has passed the impingement area of the gas jets, the gas flow (9) is restored to a value adjusted to the geometry of the cast part presently passing the impingement area.

  Recently Added Patents
Satellite communication network
Information obtaining and notification, data message forwarding and handover method and access node
System and method for multi-threaded OFDM channel equalizer
Epoxy composition for encapsulating an optical semiconductor element
Method for cutting C--Mn steel with a fiber laser
Method for maintaining a driver-independent braking intervention after a collision
Pharmaceutical composition for treating CAPRIN-1 expressing cancer
  Randomly Featured Patents
Method for producing multicrystalline silicon substrate for solar cells
Switching converter including a rectifier element with nonlinear capacitance
File tagging and automatic conversion of data or files
Light duty elevator door operator
Linear photoelectric array with optical gain
Light emitting diode module
Trackside power distribution systems
Microporous photo glossy inkjet recording media
Portable electronic device including means for establishing an electrical connection inside a case of said device
Computed tomography apparatus with integrated unbalanced mass detection