Railway vehicle parts inspection check

Railway vehicle parts inspection to check 2019 - 06 - 28 vehicle parts number is various, complex shape and structure, which have forging, casting, rolling pieces and weld, such as form, such as sheet, rod and various profiles. Testing components related to the vehicle direction part is more, such as axles, wheels, bearings, bogie, cross bar, brake and brake shoe, etc; And related to vehicle connection of coupler and buffer etc. These parts is directly related to safety, generally need to be in the process of manufacture and use of nondestructive testing. Vehicle parts inspection mainly used method and magnetic method, including: the ultrasonic inspection: it is mainly used for axle shaft, wheel and axle inspection after assembly. Magnetic particle inspection: used for all kinds of forging, casting surface defects, especially fatigue crack detection. Ray inspection: it is mainly used for important castings and weld inspection. Penetration testing: it is mainly used for vehicle weld flaw detection, also can use other detection methods of test results for verification. Vehicle parts inspection into new system and two cases in service. New system of product testing methods, standard reference in the United States AAR standard, European EN and ISO standard, some products even directly equivalent adopt or equivalent standard of similar products abroad, others are going to have some changes, to adapt to the domestic situation, thus some standards will be at the same time with a variety of domestic advanced foreign standards. Most of the parts detection belong to conventional mechanical parts inspection, inspection of corresponding components are nearly the same with the other departments. But some parts is different, mainly in use sometimes need to assemble the parts together, is a typical axles, wheels and bearing assembly, axle parts keep out each other, don't break down when the inspection is very difficult. Inspection work difficulty is not detection technique can meet the inspection requirements, but under specific conditions, how to carry out inspection technology. （ Railway vehicle resource platform)