1, The Process Principle

(1) metal phase transition in the vacuum state characteristics.
Under vacuum and atmospheric pressure is only a thin 0.1MPa, solid state phase transition thermodynamics, kinetics does not produce any changes. In the formulation of the vacuum heat treatment procedures, completely based on the principle of atmospheric pressure, solid state phase change. Can refer to the data of various types of organizational changes in atmospheric pressure.

(2) vacuum degassing, improve the physical and mechanical properties of metallic materials.

(3) The vacuum degreasing role.

(4) evaporation of the metal: heating under vacuum, the surface elements of the evaporation phenomenon occurs.



Other News:
Vacuum heat treatment process principles and vacuum heat treatment and heating c
koyo automotive wheel bearing installation techniques the decision to use life
Olympic 5 inventory: the tradition is still sturdy swimming the first to break t
U.S. Department of Commerce plans to impose countervailing duties on Chinese ste
The IKO full cylindrical roller bearings of the main aspects of the regular main
Putin's commitment for the Dalai jump to visit Russia to create the possibility
U.S. Steel second-quarter profit halved but-than-expected
U.S. bombers, U-turn to deal with China, said one will be able to get the South