In the SAE and AISI research projects, CCT-4 was noted as one of the many tests that best matched actual vehicle aging results. CCT Salt Spray Tester is a test equipment available from Standard Group (Hong Kong) Limited.
The conditions listed in CCT-4 include:
Electrolyte: 5% sodium chloride;
pH: no special provisions;
Typical duration: 50 cycles (1200 hours).
The cycle of CCT-4 includes:
Step 1: Salt spray at 35°C for 10 minutes
Step 2: Dry at 60°C for 2 hours and 10 minutes
Step 3: Dry at 50°C for 15 minutes
Step 4: 60°C, >95% humidity for 1 hour and 15 minutes
Step 5: Sub-loop repeats steps 6-8, 5 times
Step 6: Dry at 60°C for 2 hours and 25 minutes
Step 7: Dry at 50°C for 15 minutes
Step 8: 60°C, >95% humidity for 1 hour 20 minutes
Step 9: Dry at 35°C for 10 minutes
Step 10: Go back to Step 1
Steps 3, 7, and 9 are not normally part of the above procedure, they are only transition steps added to shorten the transition time.
Salt Spray Tester Setup for CCT-4 Salt Spray Test:
Salt spray deposition rate measured in a 100mm diameter funnel: 4-8 ml/hour;
Recommended spray pressure: 12psi;
Recommended solution flow: 1100 liters, 2.0 liters/hour; 600 liters, 1.3 liters/hour;
Peristaltic pump speed: adjust according to the above flow rate.
QINSUN is a Salt Spray Tester manufacturer with many years of experience. Customers have a good reputation. If you have friends who want to buy, please leave us a message!