Overview
JIANGKAI NBC-LC-80 (-40 ℃) Thermal Shock Test Chamber is mainly used to test the tolerance of materials in extremely high temperature or extremely low temperature instantaneous alternating environment, simulating chemical changes or physical damage that may be caused by thermal expansion and contraction of products. The equipment adopts a PID automatic Control system to ensure the accuracy and Reliability of the test, which is suitable for evaluating the performance of material structures or composites under temperature Impact. The products are divided into two-box and three-box, which meet a number of national standards and international specifications.
Features
1. Adopting programmable color screen TEMI8226S Touchscreen controller imported from Korea, the operation is intuitive, with data saving, reservation switch, experimental Linear dispersion analysis and RS232/USB communication function.
2. Equipped with new PWM cold control technology, it can reduce energy consumption by about 40% under low temperature conditions, and use servo refrigerant Flow rate control technology to save energy by more than 30%.
3. The test cycle is carried out, and the effective defrosting is once every 5 days, and the defrosting only takes 2 hours without affecting the impact time.
4. Adopt pure aluminum fin evaporator to reduce energy storage time and Energy consumption.
5. Equipped with Dual-Box and Three-Box testing capabilities, meeting test specifications.
6. The refrigeration system adopts the dual cascade Water-Cooled system composed of the French Taikang fully enclosed Compressor, which is efficient and stable.
7. The air conditioning adopts the forced ventilated equilibrating temperature control method (BTC) to improve the airflow and greatly improve the Temperature Uniformity.
8. Safety protection measures are in place, including studio overtemperature, refrigerator overpressure/overload/oil pressure, heater short circuit/overload, blast motor overload and system leakage protection.
Principle
The equipment realizes temperature Impact through high temperature heat storage zone and low temperature cold storage zone (or sedan structure). During the test, the sample is switched between high temperature and low temperature zone, and experiences extremely hot and cold environment in the shortest time. The refrigeration system adopts a binary cascade cycle, which includes two refrigeration cycles at high temperature and low temperature. Energy is transferred through evaporative condenser to transfer heat in the working room to achieve cooling. The air conditioning system adopts forced ventilated internal equilibrate temperature regulation method (BTC). When the refrigeration is working continuously, the Control system controls the heater output through PID operation to achieve dynamic equilibrate, ensuring accurate temperature control.
Applications
Electronics components, automation components, communication components, auto parts, metals, chemical materials, plastics, defense industry, aerospace, military industry, BGA, PCB substrate, electronic chip IC, semiconductor ceramic and polymer materials
Standards
GB/T 2423.1 - 2008 Test A, GB/T 2423.2 - 2008 Test B, GB-T10592-2008, GJB150.3-198, GJB360A-96 Method 107, GJB150.5-86, MIL, IEC, JIS, GB-2423.1-89 (IEC68-2-1), GB-2423.2-89 (IEC68-2-2), GJB360.8-87 (MIL-STD-202F), GBJ150.3 (MIL-STD-810D), GJB150.4 (MIL-STD-810D), GJB150.3-86, GJB150.4-86, GJB150.5-86
Steps
1. Set the required Temperature Impact Program, Temperature range and time parameters through the Touchscreen controller.
2. Place the sample to be tested on the shelf in the sample testing area.
3. Select the running mode (program running or constant running) and start the device.
4. The equipment automatically performs high and low temperature cycle Impact, which can monitor real-time Linear dispersion and running status on the screen.
5. After the test, the equipment is equipped with the function of automatically returning the product to normal temperature to avoid frost and condensation.
6. Export or save test data via Interface (RS232/USB).
Notice
• Equipment Ambient Temperature should be maintained at 5 ℃~ 40 ℃, Environmental humidity ≤ 80% R.H.
• To ensure performance (e.g. minimum temperature), Ambient Temperature ≤ 30 ° C and no condensation are recommended.
• The power requirements are AC380V, 50~ 60Hz, Power 10~ 15KW, need to ensure stable power supply.
• The left side of the equipment is equipped with a φ 50mm lead hole, and the wiring must comply with international electrical standards.
• Regularly check the refrigerant (R502, R13) and the status of the refrigeration system.
• Pay attention to the status of multiple Safety protection devices of the equipment, and check in time in case of fault alarm.
Sample placement should ensure that the air circulation in the box is not affected to maintain uniform temperature.
• The defrosting cycle is about once every 5 days. Do not perform an Impact test during defrosting.
