Test and inspection

TYHI provides the measurement and inspection service of NDT,chemical analysis , metallographic test, failure Analysis, mechanical property test, sample coupon, dimension measurement, weighing instrument verification, weighing, measurement management and welding process test, training, consultation, research.

TYHI has two professional institutes,Physical-ChemicalCenter and Experiment Center of Railway Transit Equipment Co., Ltd. Physical-ChemicalCenter is a professional testing and metrology institute with 110 employees, of which 78% is technicians.

TYHI has more than 200 sets of advanced testing equipments, which areGE ISOVOLT Titan450, Ultrasonic Tester, IR Carbon-Sulfur Spectrometer, ICP-AES, LECO gas analyzer, automatic Metalloscope, SEM & EDS, universal testing machine, impact tester, EDM, hardness tester, low-cycleFatigue tester,Residual Stress tester, wear & Contact Fatigue Tester, Fatigue Bending Machine, CMM,image measuring instrument, inclusion analyzer, metal Original Position Analyzer, salt spray cabinet etc.There are 8 Measurement Standards, which are Level III gauge block and Level IV gauge block, Angle Block, thermocouple measurement standard, digital manometer measurement standard, digital multi-meter measurement standard, DC potentiometer measurement standard and weighing instrument verification.