ATEC ice water impact test chamber


Ice water impact test (temperature impact test of surge water) is to simulate the load situation of surge water generated when the components are driven through the accumulated water, so as to ensure the functional stability of the components under the condition of rapid cooling due to water. If the vehicle is driving on a watery road in winter, ice water splashes onto a hot system/component, the failure mode is mechanical rupture of the material or seal failure due to different temperature expansion coefficients.(This test is not a corrosion test)
Reference Standard
ISO16750-4-2010 road vehicles. Environmental conditions and tests for electrical and electronic equipment
VW80000:2009 Volkswagen electrical and electronic components test methods
Schematic Diagram of Surge Nozzle Structure
surge nozzle
Basic parameters
1. Volume in the box: 1000L
2. Water temperature: 0~4 ℃
3. Temperature in test chamber: RT 10~180 ℃
4. Spraying distance: 300~350mm
5. Number of nozzles: 3
6. Ice water flow: about 3 ~ 4L/each surge/each nozzle
7. Spray time: 3s, adjustable
8. Conversion time:<20s
9. Test cycle times: 100 times, adjustable
10. Total cycle time: 30 minutes, adjustable
11. Water tank volume: about 60L
Schematic of Water Splash Test Device
Ice water impact test
1. No water infiltration
2. The test piece is only allowed to open after completing the entire test sequence.
3. The function of the test piece before, during and after the test must be intact, and all parameters must be within the scope of technical requirements.
high temperature heating system
1. Heating rate: ≥ 2 ℃/min (no load, average over the whole process)
2. Temperature deviation: ≤ ± 5.0 ℃
3. Temperature fluctuation: ≤ 1.0 ℃
4. Heater: high quality stainless steel electric heater. (Non-contact solid state relay control)
5. Temperature control: PT100 temperature sensor, solid state relay, circulating fan, over-temperature protector, etc.

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