Technical Solution For Cold Water Thermal Shock Immersion Test Chamber
When driving on flooded roads in winter, splashes of cold water (ice water) onto high-temperature automotive systems or components can cause thermal shock. Therefore, automotive parts need to undergo ice water shock resistance testing using a cold water thermal shock immersion tester to assess their durability in extreme environments. Below, we will discuss the relevant technical solutions for cold water thermal shock immersion testers.
Product Name: Huanyi Instruments Cold Water Thermal Shock Immersion Tester
System components: Test chamber, ice-water impact testing system, ice-water immersion testing system, control system, refrigeration system, heating system, air duct system, etc.
1. Ice-water impact testing system
Suitable for conducting water splash tests on products.
Cycle count: 100.
Tmax holding time: 1 hour or until temperature stabilizes.
Slot nozzles: 2.
Water flow rate: (3-4) L/3s, automatically constant flow via PID control.
Nozzle distance from housing: (325±25) mm.
Spraying time: 3s.
Transition time: <20s.
Water temperature: 0℃～4℃.
Ice water cooling time: RT→(0℃～4℃) less than 2 hours.
Spray gun material: 316L stainless steel.
2. Ice water immersion test system
Suitable for immersion testing of products.
Cycle count: 10.
Tmax holding time: 1 hour or until temperature stabilizes.
Conversion duration: <20 seconds.
Water temperature: 0℃～4℃.
Immersion time: 5 minutes.
Immersion depth: ≥10mm.
Ice water cooling time: RT→(0℃～4℃) less than 2 hours.
3. Ice water splash nozzle design:
The nozzle is located in the high-temperature zone. During high-temperature treatment of the DUT, a movable isolation gate separates the nozzle from the high-temperature zone, effectively preventing the nozzle from also being heated at high temperatures, thus avoiding overheating of the entire pipeline and ensuring the outlet water temperature is 0-4℃.
Main Technical Requirements:
| Brand | Huanyi instrument | ||
| Main technical parameters of the upper chamber (high and Low Temperature Chamber) | |||
| Effective volume | Customized on demand | Inner box size | The actual object shall prevail |
| Inner box material | SUS304 stainless steel plate | Outer box material | Cold-rolled steel sheet painting |
| Temperature range | -50℃~+100°C | Temperature fluctuation | ≤ ±0.5℃ |
| Temperature deviation | ≤ ±2.0℃ | Temperature uniformity | ≤2.0℃ |
| Heating rate | ≥5.0°C/min (+25℃~+65℃, average, no load) | Cooling rate | ≥2.0°C/min (+85℃~-40℃, average, under load) |
| Control method | Touch screen + PLC control | Cooling method | Water cooling |
| Main performance parameters of the lower chamber (low temperature water bath) | |||
| Temperature control | Liquid heat transfer | Internal dimensions | The actual object shall prevail |
| Medium | Tap water, 5% NaCl aqueous solution/pure water | Temperature range | RT~0℃℃ |
| temperature fluctuation | ≤ ±0.5℃ | temperature deviation | ≤ ±2.0℃ |
| temperature uniformity | ≤2.0℃ | cooling rate | +60°C to +0°C, within 255 minutes; (no test specimen, no heat generation) |
| Basket load | 500kg | Basket transition time | <30s |
| Basket movement direction | vertical movement | Basket driving method | electric |
Product Features:
1. Utilizes PLC control, featuring high reliability and strong anti-interference capabilities. Furthermore, the modular design of the PLC system minimizes maintenance workload and facilitates repairs.
2. Integrates a heating system (controlling the Chamber Temperature) and a cooling system (controlling the water tank temperature), ensuring that test conditions accurately simulate the real-world operating environment (high temperature) and shock environment (ice water) of automotive parts.
3. Capable of real-time display of the sample's temperature change curve, allowing testers to intuitively and dynamically observe the sample's thermal changes.
For questions regarding the selection of a cold water thermal shock immersion test chamber, please consult the relevant technical personnel at Huanyi Instruments.