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
Pattern identification apparatus, control method and program thereof
System and method for managing a loyalty program via an association network infrastructure
Mobility management in a communications system
Generating agricultural information products using remote sensing
Front portion of a vehicle, toy, and/or replicas thereof
Method and apparatus for detecting and tracking vehicles
Electrode binder composition, electrode slurry, electrode, and electrical storage device
  Randomly Featured Patents
Method for sourcing custom window coverings from multiple sources based upon price and delivery date
Punch apparatus with improved slug removal efficiency
Sensor apparatus for process measurement
Copolymers based on diketenes, ethylenically unsaturated dicarboxylic acids or dicarboxylic acid derivatives and ethylenically unsaturated hydrocarbons
Methods and apparatus for simultaneously inserting an array of flexible pins into a work piece
Electric liquid level detector
Devices for conveying, stretching, and taking-away polymer films
Multimodal document reception apparatus and multimodal document transmission apparatus, multimodal document transmission/reception system, their control method, and program
Receiver for digital television signals having carriers near upper frequency boundaries of TV broadcasting channels
Method and system for removing contaminants from a fluid