1. According to the standard
QC/T468-2010 Automotive radiator 5.9 Pressure cycle performance test
2. Test method
The radiator is placed in a normal temperature environment, and a mixture of 50% ethylene glycol and 50% water alternating with pressure was passed inside. The pressure of the liquid medium rises from 30 kPa to 125 kPa, and after holding pressure, it returns to 30 kPa as a pressure cycle. The cycle time is 6s-10s, the holding time is 3s-5s.The medium temperature of multi-purpose vehicle radiator is 95°C ± 5°C, the temperature of passenger vehicle radiator is 120°C ± 5°C.