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
Buried object detection in GPR images
Uni-directional transient voltage suppressor (TVS)
Toner cartridge and image forming apparatus including the same
Transferring storage devices within storage device testing systems
Large scale data storage system with fault tolerance
Cooling structure and cooling method for control rod drive mechanism and nuclear reactor
Fail-safe upgrading of portable electronic device software
  Randomly Featured Patents
Bleeder screw for disc brake assembly
Vibration damper and method of making the same
Process for producing (Z)-1-phenyl-1-diethylaminocarbonyl-2-aminomethylcyclopropane hydrochloride
Antiandrogenic agents and method for the treatment of androgen dependent disease states
Extension card incorporating power management device
Timepiece driven by a source of mechanical energy and regulated by an electric circuit
Packaging machine for wrapping products in related wrapping sheets made of heat-sealable material
Bone end shield for meat cuts
Supply voltage or ground connections including bond pad interconnects for integrated circuit device
Method for consistent and efficient management of program configuration and customizing data