Profiles

LAP CONTOUR CHECK

Wire, rod, bar, tubes - CONTOUR CHECK is THE solution for inline measurement of long products before, during or after rolling. Profiles may be round, square or hexagonal, glowing, hot or cold - CONTOUR CHECK measure relevant dimensions, detect changes in shape, rolling defects and surface defects. The system provides warnings if tolerances are exceeded so you can intervene before scrap is produced. Start-up times after product changes are reduced substantially by measuring from the first moment material comes through.

CONTOUR CHECK MODELS BASED ON LASER LIGHT SECTION

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Overview gauges based on laser light section

MEASURING PRINCIPLE

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description of laser light section function principle

Measuring the profile by using light section

The CONTOUR CHECK system uses line lasers which project a continuous line onto the circumference of the section. Cameras scan this line, the contour of which changes in relation to the shape and position of the measured object. 

A dedicated software program computes the exact profile of the measured object in real time, with each individual measurement generating one complete cross sectional profile. The measurement starts automatically when a section reaches the measuring frame. 

The measured sections are displayed on a monitor as cross sectional graphs, and the longitudinal profile is immediately calculated from the accumulated cross sectional values and displayed on the same screen. Any deviations between target and actual dimensions are highlighted in color. 

The control personnel see, at a glance, whether the actual dimensions are within the allowable tolerance limits and can immediately intervene in the production process as required.

The available data enables continuous, traceable quality control of each individual section. The measuring and analysis values can be used for quality control and process optimization purposes.

Application example: Böhler Edelstahl

STRAIGHTNESS CHECK: SETUP AND OPERATION

Short demonstration of applications in manufacturing of long products, using three different operation principles:

  • laser micrometer (shadowing principle)
  • laser light section
  • laser triangulation

Non-rotating objects may need further measurement axes.

Play

STRAIGHTNESS Verification USING LASER-SCAN-MICROMETERS

For straightness measurement we recommend at least three micrometers. To detect deviations in all directions, rotating the tube is typically acceptable along its longitudinal axis during inspection. This typically is the case when measurement takes place after the straightener. 

Quality verification of the bending of the sample (mm per 1 m, 2 m or 3 m). It is also possible to verify the diameter and ovality. Optionally the system can be upgrated to certify lack of hook ends.


Your benefit

  • Inline measurement during production in real time
  • Non-contact and high precision
  • Independent of vibrations due to synchronization of data sampling
  • Intuitive software for high speed data evaluation
  • Data logging for quality assurance
  • Easy calibration
  • High durability
  • Low maintenance