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Flaw detectors are used to detect or measure defects in raw materials or finished products. This product area includes fault detectors, NDT instruments that are used to find faults in electrical, mechanical, optical, or other systems.
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Conduct Research Top

  • EFD Induction Solves Bolt Heating Challenges
    Induction heating is rightly prized for its versatility. But bolt heating? Is induction really an effective alternative to traditional gas and resistance heating methods? Here we report on how two customers fared when they turned to EFD Induction to solve their bolt heating challenges. EFD
  • Non-Invasive Inspections by Jeff Shiver, CMRP, CPMM (.pdf)
    for certification programs. What. does that mean, "a specification"? No, you don't have to write a line to a procedure that says. "Turn the wrench counterclockwise to loosen the bolt" but the opposite extreme such as writing. a line "Adjust machine as necessary" doesn't cut it either. Our goal
  • Proper Fastener Selection and Application are Key to Bolted Joints That Won't Loosen or Lose Clamping Force
    What's a nice bolt like you doing in a joint like this? The right fastener and proper installation methods keep bolted joints from loosening. Experimental Analysis of Thread Movement in Bolted Connections Due to Vibration, Auburn University report prepared for NASA research project NAS8-39131, 1995
  • Cost Justification and Reliability Benefits of Multi-Jackbolt Tensioners
    Multi-Jackbolt Tensioners are bolt tightening devices that have been around for over a decade. They are widely used on critical equipment in most heavy industries including Petrochemical. Although the concept is relatively simple, these tensioners have many benefits that are not commonly known
  • Joint decisions
    When comparing its importance to effort expended, few aspects of product development are more out of balance than joint design. An ultrasonic sensor measures tension of a 5/16-18 Grade 8 bolt installed in a part-handling system. The screen shot is of a reference and test echo along
  • Making light work of big bolts
    . Sledgehammers are probably the most often used tool to bolt up large pieces of equipment. For example, the piston rod-to-crosshead jamnut connections in reciprocating compressors are often torqued with a large, oversized jack hooked to an overhead crane, or a floor jack that can reach inside an inspection
  • These mounts don't get the "point"
    in all six degrees of freedom, without clamps and overconstraint that may warp or distort parts. Instead, a single bolt passed through the center of each sphere is sufficient to fix the parts. However, heavy loads and impact shocks can easily damage the spheres because of high-stress point contacts
  • Tightening Bolted Joints with Torque Tools
    determination of the tightening torque can be established by measurement of bolt extension, strain gauges or by the use of a load cell embedded in the joint. Specify a Tightening Sequence: The majority of joints consist of more than one bolt and bring together surfaces that are not completely flat

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