The Process Principle of Vacuum Heat Treatment

Release time：2023-06-08

(1) The phase transition characteristics of metals in a vacuum state. Under a vacuum with a pressure difference of only 0.1 MPa from atmospheric pressure, there is no change in the thermodynamics or kinetics of solid-state phase transitions. When formulating vacuum heat treatment process regulations, the principle of solid-state phase transformation under atmospheric pressure can be used. You can refer to data on various types of organizational transformations under atmospheric pressure.
(2) Vacuum degassing improves the physical and mechanical properties of metal materials.
(3) Vacuum degreasing effect.
(4) Metal evaporation: When heated in a vacuum state, the surface elements of the workpiece will undergo evaporation.
(5) The surface Catharsis can realize less oxidation and less decarburization heating.
(6) The vacuum required for metal to achieve oxidation free heating.

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