KALMAR 32+ RWE

Two versions of KALMAR™: stationary for use at rail welding plant and mobile along the railway.

Full scanning over the entire cross-section of the welded joint with automatic determination of the defect coordinates and size. Scope of application: main and industrial railways, subway railways and rail welding plant.

ADVANTAGES:

• semi-automatic adjustment to conditional sensitivity according to the steel standard sample;
• acoustic contact tracking function;
• saving inspection results in the database, including display of diagnostic parameters (sensitivity, test time, conditional size of defects, detection rate, GPS coordinate);
• «auto-sizing» and «auto-protocol» functions;
• defect alarm.

KALMAR 32+ is a mechanical scanner with pre-installed phased array transducers, a flaw detection unit and a PC control tablet. All control functions are performed by the operator.
The scanner is installed in the center of the weld joint. Using a mechanized drive, the transducers with phased arrays move along the generatrix of the weld along the entire rail cross-section (head, web, and rail base blades). The flaw detector software includes standard settings for testing welded joints: aluminothermic, electric contact and gas press welding in accordance with the current regulations.

In real time, a B scan can be seen on the flaw detector screen as a rail contour with defect parameters: coordinates, location in the weld section, conventional dimensions, detectability coefficient. Detailed analysis of all signals is available in A and S scans.

Flaw diagram of the results of inspection of the welded joint

Flaw detection details A, B, S-scan mode

Schematic representation of the paths of individual beams

The control parameters are set using the CO-3P instrument in a semi-automatic mode

Information is presented in B and D scans

Defectoscopic data analysis is conducted in A and S scans. The determination of flaw dimensions and their coordinates is done automatically

Supplementary inspection is carried out using a manual detector of phased arrays with an entry angle range of 36-75 degrees. The inspection results are recorded in the form of defectograms in the protocol

Flaw joint map