Bibliographic Citation
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Title | Energy efficient heat-treating furnace system |
Creator/Author | Lippert, C.G. ; Meyer, R.W. |
Publication Date | 1980 Sep 30 |
OSTI Identifier | OSTI ID: 6541337 |
Report Number(s) | US 4225121 |
Resource Type | Patent |
Resource Relation | Pat. File: Filed date 23 Mar 1979 |
Subject | 320303 -- Energy Conservation, Consumption, & Utilization-- Industrial & Agricultural Processes-- Equipment & Processes ;421000 -- Engineering-- Combustion Systems; ;CARBURIZATION-- FURNACES;FURNACES-- DESIGN;FURNACES-- ENERGY EFFICIENCY;METAL INDUSTRY-- FURNACES; AIR HEATERS;FORGING |
Related Subject | EFFICIENCY;FABRICATION;HARDENING;HEATERS;INDUSTRY;MATERIALS WORKING;SURFACE HARDENING;SURFACE TREATMENTS |
Description/Abstract | A method and apparatus are disclosed for heat-treating parts in a furnace system which uses a minimum total amount of energy.^The self-contained, continuous heat-treating system includes components such as a carburizer, a tempering furnace, and a part cooler.^Energy transfer between these and other components operable at different temperatures and/or energy requirements are used to maximize thermal efficiency of the system.^Furnace components are provided and interconnected so that combustion air for radiant tube heaters supplying thermal energy to parts in a high temperature furnace such as a carburizer is preheated by exchanging heat in a part cooler and by recuperation of the carburizer exhaust; combustion products from the carburizer supply energy for reheating parts in a lower temperature furnace such as a tempering furnace; the tempering furnace exhaust is used for preheating parts prior to their entry into the carburizer; and energy transferred by the parts to a quench medium is used to heat water for subsequent washing of the parts.^In one arrangement of components a tempering furnace is mounted on top of a carburizer as part of a compact multi-level configuration.^In another arrangement the components form a single level system with energy transfer features and high thermal efficiencies similar to those of the multi-level system. |
Country of Publication | United States |
Language | English |
Format | Pages: v |
Rights | Holcroft |
System Entry Date | 2001 May 13 |
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