Vacuum Furnaces for Heat Treating, Brazing and Sintering Introduction

 Vacuum Furnaces for Heat Treating, Brazing and Sintering Introduction

 processing temperatures that are more efficiently accomplished by electric vacuum furnaces.  Further-more, the food and medical instrument industries have become attracted to the“bright” non-oxidized  finish
on parts heat treated by vacuum furnaces, which eliminates a cleaning  step. There are a wide  variety of electric and fuel-fired furnace types  used for materials processing. Each furnace type has advantages and disadvantages depending on the process  being conducted. Selection
of the furnace type  depends on the type and volume of  material being processed,the process economics, and the user’spreferences. One  furnace type gaining increased usage is  the electric vacuum furnace (Figure 1).  The connected electric load for this type of  furnace is typically
in the range of 40 kW  to 300 kW.
Applications
 Electric vacuum furnaces  can provide this level of quality. Also, the automotive industry’s switch to  lighter, stronger materials has created  a need for higher Process Fundamentals
Applications for these  high-temperature electrically  heated
vacuum furnaces include:
Electrically heated vacuum furnace technology has  eliminated environmental problems associated with  salt bath furnaces. Electric  vacuum furnaces also provide more precise control than traditional gas-fired furnace  technology.In addition, more demanding  quality requirements for  high temperature processing, such as  that imposed by the aerospace industry,  have pressured the heat treat industry  for continuously improved reliability and  repeatability.