The low-temperature assembly box is mainly used for low-temperature assembly of workpieces. According to the principle of thermal expansion and contraction, the frozen workpiece has a certain amount of shrinkage, thereby achieving the purpose of assembly.

    Advantages of low temperature cold assembly box:

    1. The cryogenic and low temperature assembly box avoids the re-tempering of materials to reduce product quality;

    2. Sometimes, the jacket cannot be heated, or the jacket is very large, and only cold assembly can be used at this time;

    3. At the same time of assembly, a cryogenic treatment is performed on the parts, which improves the dimensional stability of the parts, enhances the wear resistance and hardness, and improves the product quality.

    4. The metallographic structure of the metal after cryogenic treatment is changed, and the performance is improved;

    5. After cryogenic treatment, the hardness, toughness, wear resistance and dimensional stability of the metal are improved. The data shows that the dimensional stability of the mold is enhanced, the wear resistance of bearings and tools is improved, and the service life is greatly improved.

    6. The retained austenite content in the metal material can be greatly reduced from 15% to 20% after heat treatment to less than 5%, so that the dimensional stability can be greatly improved. At the same time, the stability of the remaining austenite is greatly improved, and the transformation will rarely occur again.

     7. Precipitation of uniform, fine and dispersed carbides produced on the metal structure matrix. The precipitation of this carbide will significantly improve the wear resistance and friction properties of the metal, the hardness will also increase, and it will directly improve the life of the wear parts

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 treatment equipment, cryogenic freezer, liquid nitrogen cabinet freezer, liquid nitrogen tunnel freezer,sub-zero processing equipment, low temperature cold assembly equipment, cryogenic freezing equipment, and so on.