Titanium gaskets become critical sealing components under extreme working conditions due to their high specific strength, corrosion resistance, biocompatibility, and thermal expansion compatibility.

1、 Hot end seal of aircraft engine

Combustion chamber flange: TA19 titanium alloy gasket, high temperature strength: ≥ 550 MPa, creep rate:<5 × 10 ⁻⁸ s ⁻¹;

Turbine casing: thermal cycle fatigue>5000 times laser cladding Al ₂ O ∝ - Y ₂ O ∝ coating → oxidation weight gain;

2、 Corrosion resistant sealing for nuclear energy systems

1. Main pump flange of molten salt reactor

Material: Gr.5 titanium alloy+surface micro arc oxidation

Performance: Resistant to 650 ℃ FLiNaK molten salt corrosion, corrosion rate<0.02 mm/year

2. Spent fuel reprocessing equipment

Structure: Titanium/Graphene Composite Gasket;

Resistance to nitric acid penetration: Leakage rate in 40% HNO 3 is less than 10 ⁻⁶ Pa · m ³/s.

3、 Implant sealing

1. Cardiac pacemaker packaging: ultra-thin titanium pad, bioelectric isolation impedance.

2. Micro sealing of orthopedic instruments: Ti-15Mo alloy waveform spring gasket, elastic modulus ≈ 80 GPa, to avoid stress shielding;

4、 Key sealing for new energy batteries

Solid state lithium battery: positive pole high-temperature sealing, gradient titanium gasket → interface contact resistance;

Hydrogen fuel cell: bipolar plate sealing, laser welded titanium corrugated gasket → hydrogen embrittlement resistance life>20000 cycles;

Core value: Titanium gaskets achieve zero leakage dynamic sealing in high temperature/strong corrosion/biological environments. China has broken through the 0.03mm ultra-thin strip continuous rolling technology, supporting the localization of major equipment such as aviation engines and fourth generation nuclear power plants.