大众汽车TL52361冷却水管脉冲测试台验收成功
21.07-2019
Pressure pulse test:
Number of pulse cycles for destructive testing Ntrans > 180 000 load cycles
Slog ≤ 0,15
For testing during production Ntrans > 150 000 load cycles without failure
Number of DUTs 8 each
Pressurizing fluid 100% coolant additive acc. to TL 774-D
Test pressure ρ = (1,25 ± 1,15) bar over-pressure
Temperature of the fluid TM = (135 - 5) °C
Test chamber temperature TK = (85 + 5) °C
Pressure pulse frequency f = (1,0 ± 0,5) Hz