Aircraft capsule materials are important materials used to manufacture aircraft capsule structures, commonly used aircraft capsule materials include high-performance multifunctional laminated films, polyimide films, polyethylene wax coated papers, carbon fiber yarns, high-strength films, special coating materials, high-temperature glass fibers, polyester films, polyurethane films, etc. Among them, high-performance multifunctional laminated film is a new type of material with excellent performance, which is widely used in the manufacture of aircraft capsule structure. The material has the advantages of light weight, high strength, weather resistance, air tightness and convenient processing and transportation, and is especially suitable for the manufacture of stratospheric airships, overpressure balloons and other high-altitude long-endurance load platforms.
Helium is widely used in the aerospace field, generally mainly used as a pressure delivery agent and booster for rocket liquid fuel, helium is used in space flight to purify hydrogen systems, and is used as a pressurizer in ground and flight fluid systems. Helium is non-toxic, but it can replace oxygen in the air and pose a choking hazard. Therefore, the control of helium pass-through rate of aerospace materials is crucial.
Helium permeability tester is a special instrument used to measure the helium permeability of aircraft capsule material. Based on the principle of differential pressure method, the instrument calculates the helium permeability of the material by measuring the pressure difference between the helium on both sides of the material and the gas flow.
During the test, a sample of the capsule material of the aircraft is placed in the test chamber of the tester, one side is filled with helium, and the other side is measured by measuring the helium flow through the material. By controlling conditions such as temperature and pressure in the test chamber, it is possible to simulate the helium permeability of the material in the actual use environment.
Features: Adopt a resolution of 01PA vacuum sensor and pressure sensor to ensure test accuracy;
The system has the ability of self-testing to avoid continuous testing in the fault state;
Water bath temperature control, automatic control of heating and cooling, wide temperature control range, temperature uniformity more reliable;
The equipment uses the limit zero point and sealed pipeline system, and uses baseline technology to remove systematic errors and ensure the repeatability of test results.
Sample anti-leakage structure design, stable and reliable sealing of encapsulated specimens;
The pressure control ability is accurate, and the upper chamber has the function of holding pressure to control the stability of the test environment;
Embedded computer system control, using stable quality components, the instrument operation is stable and reliable;
High-speed vacuum capacity, reduce vacuum time, degassing thoroughly, and ensure test accuracy;
The test time is short, which improves the test efficiency;
The whole process is monitored and automatically recorded, and the test process can be reproduced throughout the process;
One-click automatic test, the test is automatically carried out after setting the test parameters, and the test result is automatically judged to be completed and the test result is saved;
Vacuum pump self-control technology, the equipment can automatically start and stop the vacuum pump according to the test needs during the test process, saving energy.
Technical parameters. Measuring range: 005～50，000cc/㎡·24h·0.1mpa
Number of specimens: 1 piece.
Number of sensors: 1.
Vacuum resolution: 01pa
Vacuum: 20pa
Temperature range: 5 95
Temperature control accuracy: 01℃
Test pressure: -01 mpa～0.2 mpa
Air pressure: 01 mpa～0.8 mpa
Test gases: O, N, CO or other special gases.
Carrier gas connection: 6 hoses.
Sample thickness: 3mm
Test size: 97mm round or square.
Size: 650mm(L) 430mm(W) 380mm (H).
Power supply: 220VAC 50Hz
Weight: 45kg