Laboratories

TO MAKE SURE DESIGN IS RIGHT

AND EACH PRODUCED PIECE PERFECTLY FITS

The proven quality of GHH-BONATRANS is related primarily to the quality of design and production and so testing equipment plays pivotal role in both phases. Having complete range of testing equipment in-house we are proud and happy to offer our customers higher flexibility and lower costs to ensure all tests in compliance with regulation and customer requirements.

GHH-BONATRANS has fully ILAC certified mechanical, metallographic, non-destructive and fatigue testing facilities. We also cooperate with a number of renowned testing and research laboratories and institutes.

BONATRANS metallurgical testing laboratory is certified to EN ISO/IEC 17025:2005 as a separate and independent testing laboratory. Besides provision of services to GHH-BONATRANS itself, the laboratory also offers its services to external customers.


Tests

MECHANICAL TESTS

Verification of mechanical properties of (our) products.

  • Hardness test (Brinell, Vickers, Rockwell)
  • Impact test
  • Tensile test
  • Fracture toughness test
  • Drop weight test

METALLOGRAPHIC TESTS

Verification of the structure and purity of the material of (our) products.

  • Baumann test
  • Macroscopic test by etching
  • Determination of microstructure
  • Grain size determination
  • Determination of share of structural elements
  • Micro-cleanliness determination

NON-DESTRUCTIVE TESTS

These tests check that the products do not include any surface or internal defects.

  • Ultrasonic inspection
  • Magnetic particle inspection
  • Eddy-current testing (for hollow axle)


FATIGUE TESTING

Verification of material behavior under dynamic loading according to the standards for the railway industry.

  • Fatigue test of wheelset, axle and/or wheel
  • Fatigue test of ruber resilient wheel during rotation
  • Resistance of the coating to cyclic mechanical stresses

SPECIAL TESTS

Verification of resistance of materials and coating according to the standards for the railway industry and other tests necessary to verify products and production processes.

  • Test of stiffness of rubber elements
  • Resistance to impact of the coating
  • Resistance to gritting of the coating
  • Laboratory heat treatment

CHEMICAL TESTS

Determination of C, Mn, Si, P, S, Cr, Ni, Cu, Mo, V, B, Ti, Zr, Co, W, Nb, As, Pb, Sn, Al through the method of optical emission spectrometry.