Vacuum Evaporator C G
The heating circuit is driven by a compressor (1) which compresses the refrigerant to 60-70°C within the heating coil (2). The heat vitality is then transferred to the feed liquid inflicting it to evaporate. The Freon then passes via an air / water cooler (3) and vaporizes by way of thermostatic enlargement valve into condensation coil (4). When the steam from evaporation chamber contacts with the condensation coil, it can switch the heat energy to the Freon and this reclaimed power is used again for the heating of feed liquid.
By pulsing the magnetron discharge within the medium frequency vary (10-200 kHz) the formation of arcs might be strongly diminished, main to better deposit quality, while attaining deposition rates approaching that of pure steel (tens of microns per hour). PMS power provides are refined -and expensive- pieces of gear, with a wide range of working modes, and tunable process parameters obtainable; nonetheless, for some tough to deposit insulating materials, they have develop into the elective selection. The explanation for that is apparent in the following pictures, where the ensuing deposit of Al2O3 with DC reactive spattering vs. PMS can be visually in contrast: the PMS coating has a stoichiometric Al2O3 composition, and is extremely dense with little defect density and structural inhomogeneities.
IAD is a variant of the electron-beam evaporation process which adds a excessive vitality Multi Arc Ion Coating Equipment beam that is directed at the part to be coated. These ions act virtually like an atomic sized hammer, producing a higher film density than will be achieved with purely by evaporation alone. The ion beam will also be used to pre-clear or etch the floor of the substrate, which may enhance film adhesion.
Methods for Producing Knowledge Storage Disks
Coatings for magnetic- or magneto-optic data storage media usually consist of a number of useful coatings which are utilized to mechanically finished disks. Most disks must be coated on each sides and there are substantially larger low particle contamination necessities as in comparison with glass coating. The sputter cathodes in the method stations are mounted on both sides of the provider so that the entrance and again of the disk could be coated concurrently.