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  5. Vacuum Helium Leak Detector (Automobile Parts Test System)

Vacuum Helium Leak Detector (Automobile Parts Test System)

The auto vacuum helium leak test system is used to find any vulnerabilities in automobile parts.

Test Concept
Charge high pressure gas into the product for gross leak test and proof test
Evacuate the vacuum chamber.
Vent gas from the product.
Evacuate the product and charge helium into the product.
Test the helium signal from the vacuum chamber by the leak detector for fine leak judge.
Recover helium from the product.
Vent vacuum chamber.

Parameters

Components to test Automobile Parts
Reject point (unit: mbar.l/sec.) gas venting parts, pipelines of engine 1.00E-01
Aluminium wheel, fuel cell 1.00E-04
Condenser, evaporator, refrigerant pipelines, compressor 1.00E-05
storage battery 1.00E-06
Fuel nozzle, automobile radiator, automobile heater core 1.00E-03
Engine cooler 1.00E-04
Fuel tank, fuel pipelines 1.00E-05
Gas for Gross Leak Test Nitrogen or dry air
Pressure for Gross Leak Test 2-42bar, demanded by working pressure of test piece.
Pressure for Helium Leak Test 2-42bar, demanded by working pressure of test piece.
Quantity of Test Station 1, 2 or 3, demanded by cycle time
Products to test in each Chamber 1 or 2
Cycle Time 30sec./pcs, demanded by production rate of test piece
Helium recovery rate >95%
Test Fixture Included
Calibration Leak 2 pieces, one is for system calibration, the other is for daily machine check.
Loading and unloading of Products Manual or Automatic
Test Cycle Automatic

Main Parts of System
Vacuum pump: Leybold
Vacuum sensor: Inficon
Helium leak detector: Inficon
Pressure sensor: GE
Solenoid valve: Burkert
PLC: Omron
HMI: Omron

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