Two basic methods that have been used to resurface and rebuild worn dredge pump shells are the manual and the semiautomatic welding methods. Both of these methods are slow and inaccurate and give no savings over the cost of buying a new shell. A new automatic welding system has recently been introduced that cuts costs and rebuild time drastically by automating the entire welding process, from feeding the wires to the welding gun, to the motion of the gun horizontally, vertically, rotationally, or any combination of these motions. The shells that have been rebuilt using this method have shown a longer service life than that for a brand new pump. A description of the system is given, with attention to the concept, and the system operation, included.

  • Corporate Authors:

    World Trade Publications, Incorporated

    P.O. Box 20810
    Long Beach, CA  United States 
  • Authors:
    • Smith, E E
  • Publication Date: 1972-10

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00043542
  • Record Type: Publication
  • Source Agency: United States Merchant Marine Academy
  • Files: TRIS
  • Created Date: Apr 6 1973 12:00AM