1. Use of low temperature tank for impact test

The CDW-196 impact test cryogenic tank is the latest refrigeration equipment developed by the company in accordance with the requirements for cryogenic devices in GB229-2007 "Metal Charpy Notch Impact Test Method". This equipment adopts the technology of liquid nitrogen refrigeration and the principle of heat balance to achieve automatic uniform cooling and constant temperature of the sample, which can fully meet the various temperature control indicators specified by the national standard GB229-2007. This equipment is simple and convenient to operate and has high working efficiency. It is the most ideal sample cooling and heat preservation equipment in the metal low-temperature impact test. At the same time, it can also be used for other low temperature detection and test work.
2. The main technical parameters of the impact test cryogenic tank
1. Temperature control range: room temperature to -196°C (room temperature≤25°C)
2．Constant temperature accuracy: ±2℃      
3．Cooling speed: room temperature to -196°C: about 8°C/min    
4. The maximum size of the host: 720×600×850mm (length×height×width)
  liquid nitrogen tank size: 700×700×1000mm (length×height×width) )
5. Effective working size: 250×160×120mm (length×height×width)   
6．Number of samples that can be installed: >60 (size of impact sample: 10×10×55mm)
7. Digital timer: 1 minute -9999 minutes, resolution 1 minute
8. Cooling medium: liquid nitrogen
9. Working power supply: 220V-240V, 50Hz, 100W
3. The main configuration of low temperature tank for impact test
1. Main machine: 1 set
2. Stainless steel liquid nitrogen tank: 30L 1 external booster (small air pump)
3. Solenoid valve: 1
4 . Sensor
: 1 pc 5. Sample basket: 1 pc