Resources Contact Us Home
Apparatus for making centrifugally-cast tube

Image Number 6 for United States Patent #8070401.

An improved centrifugally-cast tube is provided, along with a related method and apparatus of making the tube. The tube includes a plurality of grooves and bosses that are mechanically machined into an interior surface of the tube, such as by a broaching process. The profile of grooves and bosses may be defined by a plurality of intersecting concave and convex radii. The tube is resistant to creep, carburization and metal dusting. The tube also has an enhanced heat transfer rate, and a desirable surface roughness. A method of making the tube is also provided. The method essentially consists of mechanically deforming the interior surface of the tube by passing a series of cutting inserts on support rings having incrementally-differing dimensions over the interior surface. An apparatus is also provided which includes a telescoping shaft upon which is mounted at least one cutting tool that has a plurality of cutting inserts and is adapted to form a plurality of grooves and bosses in the interior surface of the tube. The grooves and bosses may be straight or spiraled.

  Recently Added Patents
Method and apparatus of motion vector prediction with extended motion vector predictor
Thermal conductivity and phase transition heat transfer mechanism including optical element to be cooled by heat transfer of the mechanism
Mobile browser context switching
Apparatus and method for storing event information for an HVAC system
Liquid crystal display device
Information repository search system
  Randomly Featured Patents
Apparatus for detecting anions in water
Method of operating a combined cycle steam and gas turbine power generating system with constant settable droop
Flat-type display apparatus with front case to which grid frame with extended electrodes fixed thereto is attached
Controlling fuel assembly stability in a boiling water reactor
Method and apparatus for triggering an electromagnetic consumer
Centrifugal filtration tube for removal of the mother liquor from the crystals in the purification of a chemical compound by recrystallization
Management of information flow and workflow in medical imaging services
Method and system for origin-destination passenger demand forecast inference
Molding-system platen having tie-bar accommodation corners that resist coplanar disorientation