Production of hot pipe with expander

Production of hot pipe with expander

  • CN 101,029,806 A
  • Filed: 03/03/2006
  • Published: 09/05/2007
  • Est. Priority Date: 03/03/2006
  • Status: Active Application
First Claim
Patent Images

1. the manufacture method with heat pipe of expansion section comprises the following steps:

  • A) prepare the hollow tubular product that outer tube diameter equates;

    B) with described tubing with the draw or expander mode, being shaped to have the expansion section of big outer tube diameter, and inserts capillary structure in described tubing;

    C) in described tubing, inject working fluid again, and carry out sealing to make heat pipe after the degasification operation;

    D) expansion section to step b) imposes the pressure pipe operation, to form the expansion section of flat on described heat pipe.

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