Ice Water Shock Test Chamber
1. Introduction
The ice water shock test chamber can meet the test requirements of ISO16750-4 clause 5.4.2 and clause 5.4.3. The equipment can perform splash water test and submersion test separately. For splash water test, The DUT is placed on the heating chamber, and heat it at Tmax for 1 hour (or until DUT temperature stabilization is reached), then use a jet to splash the DUT with cold water (0℃~+4℃) for 3s. The immersion tank (cold water tank) is under the heating chamber, when perform the submersion test, operate the DUT in the heating chamber at Tmax for 1 hour (or until DUT temperature stabilization is reached), with the device still operating, submerge it for 5min in cold water tank at a depth of ≥10mm.
The ice water shock test is to simulate a thermal shock induced by cold water and is applicable to products in the splash areas of the vehicle. The purpose is to simulate cold water splashing over a hot system or component, as can happen when a vehicle is driven on wet roads in winter. Failure modes are mechanical cracking of materials or seal failures caused by different temperture expansion coefficients. Splash water test and submersion test are two alternative methods for performing the ice water shock test.
2. Specification
Dimension of heating chamber | L1000mm*D1000mm*H1000mm |
Overall dimension | L1600mm*D1950mm*H2300mm |
Dimension of hanging basket | L500mm*D500mm*H500mm |
Dimension of immersion tank | L600mm*D600mm*H600mm |
Bearing capacity of hanging basket | 50KG |
Volume of immersion tank | Approximate 200L |
Splash test parameters: | |
Spray nozzle | Slot jet*1 (detachable for cleaning) |
Nozzle position | Right side of heating chamber |
Distance nozzle to device under test | (325±25) mm (munally adjust) |
Temperature range (heating chamber) | RT +10℃~150℃ |
Heating rate | RT +10℃~150℃ ≤ 45min |
Splash water temperature | 0℃~+4℃ |
Cooling rate | +25℃~2℃≤ 60min |
Water flow | (3~4)L/3s |
test fluid | De-ionized water or +3% Arizona fine dust (user prepare the dust) * can be recycled |
Injection time per cycle (30min) | 3s, interal time:29min57s (touch screen setting) |
Number of cycles (splash test) | 100 (touch screen setting) |
Submersion test parameter: | |
test fluid | De-ionized water; +5% NaCl maybe added |
Water temperauture | 0℃~+4℃ |
Lifting speed of hanging basket (transition duration) | ≤20S |
Immersion time | 1-99 min (adjustable) |
Number of cycles (submersion test) | 1-99 (adjustable) |
water temperature uniformity of immersion tank | ±0.5℃ |
Water temperature cooling method | Pipeline circulating water cooling |
Dust mixing method | Pipeline circulation water mixing |
Sample table | Liftable |
Working power | 380V/50Hz (3 phase 4 wires+ protective ground) |
Power consumption | 25.0KW |
Protective Earth Grounding Resistance | Grounding resistance of the protective ground wire < 4Ω |
Working conditions | 5℃~35℃ (temperature), ≤85% (R.H.), 86kPa~106kPa (pressure) |