Reflector

Auto reflectors leak test

Case History: The manufacturer of automotive reflectors that function in pairs (left and right) needed to concurrently test each pair for leakage The reflectors consist of a welded front and back panel with a slight air space between. As an in-process test, it was important the test be semi-automated, quick and easy to perform.

A TME Solution-C Vacuum Chamber Leak Test system was designed consisting of a two-port vacuum chamber tester paired with a semi-automated test fixture.

The test fixture was comprised of a fixed base with two custom machined cavities and rubber O-ring seals to conform to the size and shape of the test items. The fixture operates by means of a two-hand anti-tie-down start switch system for operator safety.

The test is performed within a chamber that uses a vacuum to create a differential pressure on the test part and detect leakage from the test part into the chamber.

If air from the part enters the chamber an increase in chamber pressure indicates the leakage. The Solution leak tester detects this leakage of air (“vacuum decay”), thus indicating a leak. The test instrument is equipped with an internal vacuum generator.