Device for ultrasonic weld seam testing of longitudinally welded pipes for longitudinal and transversal errors
First Claim
1. A device for ultrasonic weld seam testing of a longitudinally welded pipe, in particular a large pipe, for longitudinal and transverse flaws, comprising:
- a swingably suspended first test carriage, movable on a surface of a pipe on one side next to a weld seam, for longitudinal flaw inspection; and
a swingably suspended second test carriage, disposed in alignment with a center of the weld seam and movable on the surface of the pipe, for transverse flaw inspection, wherein each of the first and second test carriages includes a mount for accommodating at least one test head, which has an oscillator, and at least, one coupling medium connection having a channel which ends in an area of the oscillator and has an outlet zone configured in the form of a nozzle which is secured to the mount, wherein the test head for longitudinal flaw inspection is constructed for arrangement in different, fixed and predefined angle positions at a variable distance to the nozzle in the mount, and wherein the mount for the test head for transverse flaw inspection is arranged at a variable distance to the surface of the pipe in a support element.
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Accused Products
Abstract
A device for ultrasonic weld seam testing of longitudinally includes two testing carriages swingably suspended and moveable on the pipe surface to the right and left of the weld seam for longitudinal flaw inspection, and one testing carriage swingably suspended in central relationship to the weld seam and moveable on the pipe surface for transverse flaw inspection. Each testing carriage has a mount for accommodating at least one testing head which includes an oscillator, and at least one coupling medium connection having a channel ending in the region of the oscillator and configured as nozzle in the outlet area. The test head for longitudinal flaw inspection can be arranged at various fixed and predefined angle positions at variable distance to the nozzle in the mount, and the test head for transverse flaw inspection can be arranged, together with the mount, at a variable distance to the pipe surface in a support element accommodating the mount.
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Citations
13 Claims
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1. A device for ultrasonic weld seam testing of a longitudinally welded pipe, in particular a large pipe, for longitudinal and transverse flaws, comprising:
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a swingably suspended first test carriage, movable on a surface of a pipe on one side next to a weld seam, for longitudinal flaw inspection; and
a swingably suspended second test carriage, disposed in alignment with a center of the weld seam and movable on the surface of the pipe, for transverse flaw inspection, wherein each of the first and second test carriages includes a mount for accommodating at least one test head, which has an oscillator, and at least, one coupling medium connection having a channel which ends in an area of the oscillator and has an outlet zone configured in the form of a nozzle which is secured to the mount, wherein the test head for longitudinal flaw inspection is constructed for arrangement in different, fixed and predefined angle positions at a variable distance to the nozzle in the mount, and wherein the mount for the test head for transverse flaw inspection is arranged at a variable distance to the surface of the pipe in a support element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification