Zirconium plate vacuum annealing furnace

For vacuum annealing furnace vacuum heat treatment process, the workpiece heating speed obviously lag behind the phenomenon of furnace heating speed, the vacuum annealing furnace by using the measured by 3 m pure zirconium plate workpiece temperature and the heat treatment furnace temperature research, through the analysis and calculation of zirconium board in heating furnace heating coefficient and cycle time, and provides reference basis for the establishment of for subsequent heat treatment process.
Vacuum heat treatment as a branch of heat treatment has its irreplaceable characteristics and is widely used in the world. For vacuum heat treatment and process flow characteristics, vacuum annealing is carried out. But due to exist in the vacuum furnace production furnace plate in the process of heating heating speed obviously lag behind the phenomenon of furnace heating speed, the lower the temperature, the hysteresis, the more obvious, the thicker the charging lag, the more obvious. Aiming at the phenomenon of vacuum annealing, this paper studies the change of temperature of the temperature during the heat treatment of 3m vacuum annealing furnace, and provides reference for the development of the heat treatment process.
Vacuum heat treatment features:
(l) the heat treatment system under normal pressure is also suitable for vacuum heat treatment. The heat treatment process must accompany the metal phase change, so the phase change is the core basis of the heat treatment principle. Under the condition of vacuum, solid-state phase transformation of thermodynamics, dynamics compared with the ordinary conditions of phase change heat treatment will not produce significant change, studies have shown that in the vacuum heating of the metal phase morphology contrast with temperature atmospheric heating metal, only the grain shape changed, and the phase morphology changes the performance impact is not big. Therefore, in the formulation of vacuum heat treatment process, it can be used to change the data of various types of tissues under normal pressure under normal pressure.
(2) the workpiece desorption and vacuum heat treatment can degassing effect, this effect can improve the performance of the workpiece, such as: hardness, yield point, tensile strength, elongation, reduction of area, and internal friction and resistance performance.