The use of liquid nitrogen tanks in daily life is becoming more and more common. It can be used not only in laboratory research, but also in medical and other industries. Because of the use of liquid nitrogen tanks in the medical and beauty industries, Breaking the shortcomings of conventional treatments is possible, which can allow cells to be preserved indefinitely and allow normal skin tissues to grow out again. In daily life, liquid nitrogen tanks are mainly used as follows:

1. {C}Active preservation of animal semen. At present, it is mainly used for the preservation of semen of excellent breeding males such as cattle and sheep and precious animals, as well as long-distance transportation.

2. Store biologically active samples. Since umbilical cord blood needs to be stored to minus 196 degrees, it can only be stored in liquid nitrogen tanks, which is generally used for bone marrow transplantation and other operations. It can be stored for 4 to 7 days in a liquid nitrogen tube at minus 196 degrees. Its activity can be maintained in a low temperature environment. The umbilical cord blood is taken out of the liquid nitrogen tank and can be rewarmed in only 1 minute.

3. Use in the cell culture. The general process of cell culture mainly includes 4 steps, namely, preparation, sampling, culture, and cryopreservation and recovery. To preserve the cells, especially the mutant cells or cell lines that are not easily available, the cells should be frozen. The freezing temperature is generally a liquid nitrogen temperature of -196℃. The cells are collected into the freezing tube and added to the medium containing the protective agent (usually dimethyl sulfoxide or glycerol), frozen at a certain cooling rate, and finally stored In liquid nitrogen. At extremely low temperatures, the storage time of cells is almost unlimited.

4. {C}Refrigeration and freezing in the medical and health industry, and refrigeration for medical operations. Because the temperature of liquid nitrogen is extremely low (-196°C) and it is non-toxic and has no side effects, the medical industry often uses liquid nitrogen stored in liquid nitrogen containers as a refrigerant for surgical treatment or refrigerating cells and tissues.

5. {C}The liquid nitrogen tank can be used to store the Marek's disease live vaccine. Generally, when the vaccine is taken out from the liquid nitrogen tank, it should be placed in warm water at 35-37°C immediately, so that the vaccine can be thawed quickly.

6. Beauty field. The ultra-low temperature of liquid nitrogen is mainly used to treat the skin surface, such hemangiomas, warts, pigment diseases that grow on the face, eyes, lips, ears and nose, etc.. If surgical treatment is used, scars are often an inevitable sequela defect, but cryotherapy does not produce such sequelae, and the effect is also Ideal.

7. Cryogenic treatment of metal materials. Cryogenic treatment technology is a new technology that has emerged in recent years to improve the performance of metal workpieces. It is currently the most effective and economical technical means. The cryogenic treatment equipment developed with cryogenic treatment technology provides a strong guarantee for the different cooling, heating rate, strict implementation of cryogenic treatment process and low temperature aging of the workpiece. Cryogenic technology is to use the cold medium as the cooling medium to continue the cooling process of the quenched metal material to a temperature (-196°C) far below room temperature, so as to achieve the purpose of exerting the performance of the metal material. Cryogenic treatment of metal materials with liquid nitrogen stored in a liquid nitrogen tank can change the metallographic structure of the metal material and significantly improve the hardness, strength and wear resistance of the metal material.

8. Cryogenic assembly of precision parts. After the precision parts are cryogenically processed in the liquid nitrogen tank, they are taken out for assembly, which can improve the assembly quality of the parts and the sensitivity of the precision parts, thereby improving the performance of the equipment or the whole machine.