Working Principle
The Liquid-to-Liquid Thermal Shock Chamber uses liquid as the temperature control medium. It quickly circulates liquids of different temperatures through a circulating pump to achieve rapid temperature changes. The sample is alternately immersed in high-temperature and low-temperature liquids for testing, creating a temperature shock effect.
Structural Principle
The test area of the Liquid-to-Liquid Thermal Shock Chamber is divided into a high-temperature bath, a low-temperature bath, and a hanging basket. The high and low-temperature baths serve as energy reserves, while the samples are placed in the hanging basket. An automatic lifting device moves the hanging basket, allowing the samples to be alternately placed in the high-temperature and low-temperature baths for temperature shock testing.
Commonly Used Liquid Medium
- Silicone Oil: The high-temperature bath can reach temperatures from RT +40°C to +260°C, while the low-temperature bath ranges from +20°C to +25°C. This medium is suitable for test scenarios with high-temperature requirements.
- D02 Fluorine Oil: The high-temperature bath operates from +70°C to +200°C, and the low-temperature bath from -65°C to 0°C. This oil is ideal for conventional lubrication, sealing requirements, and cost-sensitive applications in mild environmental conditions.
- D02TS: Designed for extreme temperatures, high pressure, strong corrosion, and high cleanliness requirements, this medium is used in fields such as semiconductor manufacturing and spacecraft components.
- Pure Water and Ethylene Glycol: Ethylene glycol’s high-temperature bath ranges from +60°C to +160°C, and its low-temperature bath from -10°C to +80°C. Both pure water and ethylene glycol are commonly used in tests with relatively low medium requirements and strict cost controls.
Advantages of Liquid-to-Liquid Thermal Shock Chamber
- High Temperature Control Accuracy: Utilizing liquid as the medium allows for lower temperatures and the ability to meet more stringent testing requirements.
- Fast Temperature Change Rate: The rapid circulation of liquid enables a quicker temperature change rate, significantly reducing test duration.
- Energy Saving and Environmental Protection: Compared to air-to-air thermal shock chambers, the Liquid-to-Liquid Thermal Shock Chamber consumes less energy during operation, making it a more environmentally friendly option.
Application fields
- Electronic industry: thermal expansion test of IC chips, PCB boards, and semiconductor devices
- Military and aerospace industries: reliability verification of parts in extreme environments.
- Material research: testing the physical and chemical properties of polymer materials, ceramics, etc. under conditions of rapid temperature changes.
- Automobile and new energy: evaluating the performance changes of automotive batteries, motor components, etc. under temperature shock tests.
Product Case Introduction
This is a Liquid-to-Liquid Thermal Shock Chamber for chip testing. It uses a servo motor drive module to control the hanging basket, which is accurate, stable and has a large load. The refrigeration system is used for refrigeration, the electronic control system controls the entire test process, and the PID controller accurately controls the test temperature.
- Basket size: W300mm*H200mm*D250mm
- External size: W1400mm*H2000mm*D1450mm
- Impact temperature range: low temperature -55℃ to -10℃, high temperature +60℃ to +125℃
- High temperature bath: +60℃ to +150℃
- Preheating time: RT to +150℃ about 30 minutes
- Low temperature bath: 0℃ to -65℃
- Precooling time: RT to -65℃ about 60 minutes
- Conversion time: ≤ 10 sec
- Impact transition time/temperature recovery time: +125℃ to -55℃ ≤ 5min
The Liquid-to-Liquid Thermal Shock Chamber can meet more stringent test conditions than the air-to-air thermal shock chamber, resulting in a higher cost. However, it is not suitable for all products. This chamber is primarily used for testing chips, PCBs, and semiconductor materials. If you are interested in purchasing a liquid-to-liquid or air-to-air temperature shock test chamber, please provide us with your specific test conditions. KOMEG is ready to create thermal shock environmental chambers solutions designed just for your products.