liquid nitrogen cryogenic box is nothing more than using liquid nitrogen as the cooling medium to continue to cool the quenched metal material to a temperature far below room temperature, so that the retained austenite after conventional heat treatment is further transformed into high-speed steel. A large amount of retained austenite in the metal is transformed into martensite, precipitated and dispersed, and the fine and dispersed carbides prevent the movement of dislocations in the raw material, thereby strengthening the matrix structure. At the same time, ultra-fine carbonization plays the role of grain boundary strengthening, thereby changing the performance of high-speed steel workpieces, making it have the impact toughness and wear resistance of high-speed steel workpieces, and the dimensional stability of high-speed steel workpieces. High-speed steel improves the use of workpieces. life.
The cryogenic box adopts man-machine interface + PLC + module programmable control mode to monitor the temperature change in the box in real time, and has manual and automatic dual operation functions. The equipment uses liquid nitrogen as the cooling medium, the stainless steel shell is beautiful and durable, and the high-quality high-density polyurethane foam insulation layer is used for heat preservation. The system has reasonable structure, standardized manufacturing process, compact component layout, simple operation, powerful functions, and can achieve a humanized communication interface.
Liquid nitrogen cryogenic box
What are the structural characteristics of the liquid nitrogen cryogenic box?
1. The box, door and insulation layer are made of AISI304 stainless steel, which is durable and non-corrosive. The door and box are sealed with imported special low-temperature resistant silicon rubber and felt, and the door buckle is special to ensure a complete seal. The box body is strengthened, which can reliably carry the weight of the workpiece.
2, 150mm thick insulation layer, double-layer insulation, excellent insulation performance, to ensure that the low temperature of the outer surface of the equipment is normal.
3. Equipped with electrical interlocking and alarm devices to ensure safe use.
4. The box cover is equipped with three configurations of power spring support opening, pneumatic cylinder opening and reduction motor for users to choose, which facilitates the opening and support of the box cover and the placement and operation of the workpiece. The bottom of the box is equipped with special casters to facilitate the movement of the box without damaging the ground.
5. The liquid nitrogen cryogenic box adopts imported solenoid valve, which has accurate temperature control and long service life. The air circulation system in the box is composed of a high-power motor, an enhanced axial fan and an air distribution device to ensure rapid and uniform air cooling cycle. The specially designed guiding device makes the cooling medium in the box unblocked, and evenly injects liquid nitrogen to ensure uniform temperature in the box;
Nuoruida (Tianjin) science and Technology Co., Ltd. is committed to research, development, and sales of liquid nitrogen freezer. Using European technology, we provide a variety of equipment. The main equipment is liquid nitrogen cryogenic freezer, liquid nitrogen cabinet freezer, liquid nitrogen tunnel freezer,sub-zero processing equipment, cryogenic freezing equipment, and so on.
