Surface Gas Heated Vacuum Technology Leads the Industry
Gas Heated Vacuum Furnace Designs Lower Operating Costs for Vacuum Heat Treatment The advantages of vacuum heat treating are numerous and well documented. These advantages have traditionally been opposed by a few negatives such as furnace cost, overall operating cost, and in most cases, the cost of electricity as a utility. Typically, these negatives have been countered by the heat treater’s desire to provide vacuum processing to their customers or the requirement of certain materials to be vacuum processed. Over the history of this type of equipment, electric heating has been the primary heating source offered by manufacturers. This scenario has resulted in a well-established vacuum furnace installed base that uses electricity as the heating source. A Longer History Than You May Think Surface® Combustion initially investigated the use of natural gas heating in vacuum equipment as early as 1946 when a U.S. Patent was received for a fuel-fired vacuum furnace for the...
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