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Advantages of the tungsten heaters for vacuum metalizing |
| AUTHOR : Date : 8/20/2014 12:13:29 AM |
The two primary advantages of the tungsten heaters made in accordance with the present invention when used in continuous type vacuum metallizing operations are: (l) the comparative long life of the tungsten heaters (e. g. up to 3 hours) and the dependability thereof; and, (2) the operation of the heaters at substantially lower temperatures than werepreviously possible with heaters such as those of the tungsten filament type. The longer life and the greater dependability of the heaters permit the apparatus to be operated. |
