-196 C cryogenic freezer

cryogenic freezer DC-150L

Cryogenic treatment is a new technology rises in recent years to improve the performance
of metal parts. The so-called cryogenic treatment is to use liquid nitrogen (-196 ?) as a cooling
medium to treat the metal material after quenching, make the temperature much lower than the room
temperature, change the existence of retained austenite to martensite. After cryogenic treatment, the
wear resistance, toughness and dimensional stability of metal parts can be improved several times.
In the U.S.A, Germany, the former Soviet Union, Japan and other countries, cryogenic treatment is
not only used in high-speed steel, bearing steel, tool steel, to enhance wear resistance , strength
and toughness, and to improve the service life of the workpieces, but also used in aluminum alloy,
copper alloy, carbide, plastic, glass, to improve the uniformity, stability, reduce distortion, and
improve service life.
-196 C cryogenic freezer