Patents Represented by Attorney, Agent or Law Firm Micheal K. Dixon
  • Patent number: 6350327
    Abstract: A process for producing clad pipe comprises forming a hollow body (S10) of base material, bonding a cladding material metallurgically to the base material (S12) to form a composite body and subsequently extruding the composite body to form a pipe. This process allows the metallurgical bond to be validated using non-destructive methods prior to extrusion. Any areas that are unbonded will be detected, thereby reducing wastage. Moreover, because the metallurgical bond is achieved prior to extrusion, the cladding thickness is controlled during the extrusion process, avoiding migration of the clad material into the base material by disproportionate amounts.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: February 26, 2002
    Assignee: Forth Tool & Valve Limited
    Inventor: David Neill