Project | Requirement | |
Ring stiffness KN/m² | SN≥4KN/m² | SN≥8KN/m² |
Impact property(TIR)/% | TIR≤10% | |
Ring flexibility | Smooth style, no reverse bending, no cracking, no separation of the two walls | |
Creep property | ≤4 | |
Oven test | No bubbles, no layers, no cracks | |
Seal test | Pressure 0.05MPa, constant temperature 15min, no leakage, no fracture |