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Arrangement for inspection of welded plate sections

  • US 5,648,619 A
  • Filed: 09/19/1995
  • Issued: 07/15/1997
  • Est. Priority Date: 10/19/1994
  • Status: Expired due to Fees
First Claim
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1. An arrangement for inspecting arcuate plate assemblies of aluminum with a thickness of at least 20 mm, for manufacture of large arcuate objects such as LNG tanks, comprising:

  • a fastening jig for holding a plate assembly that is to be inspected at a predetermined inspection position having first and second opposite sides,a weld inspection means comprising, at the first side of the inspection position,a first rail system,a first carriage mounted on the first rail system for movement therealong, anda radiation source for X-ray material inspection carried by the first carriage,and, at the second side of the inspection position,a second rail system,a second carriage mounted on the second rail system for movement therealong, andan imaging means including a video camera for X-ray inspection carried by the second carriage, anda laser measuring device located at a considerable distance from the predetermined inspection position for measuring the arcuate shape of the plate assembly over substantially its entire area.

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