Fluidized Bed Heat Treating.

Abstract

Steel (carbon, alloy, tool, and stainless), aluminum, titanium, and other metal can be heat treated economically in a fluidized bed furnace. All heat treatments except controlled rate cooling rate annealing are viable. Since gases are used to fluidize a bed of powder, any gaseous atmosphere can be used, and simply by turning a few valves, an atmosphere can be completely changed over in 2 minutes or less. This feature allows multiple heat treating operations to be done in the same furnace without cool down, switching furnaces, and reheating which is standard in commercial shops. Fluidized bed heat treating is economical, safer, and almost emission free. Data is presented comparing cycle times and cost for the most common heat treatments and results of emissions testing of fluidized beds are presented. Finally, fluidized bed heat treating cycles for steel, aluminum, titanium, magnesium, and copper are given.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1996
Accession Number
ADA307128

Entities

People

  • Marc Glasser
  • S. Cytron

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Beds (Process Engineering)
  • Ceramic Materials
  • Chemistry
  • Controlled Atmospheres
  • Corrosion Resistance
  • Dielectric Gases
  • Hardening
  • Hardness
  • Heat Transfer
  • Heat Treatment
  • Heating
  • Iron
  • Iron Alloys
  • Material Degradation Processes
  • Materials
  • Tensile Strength
  • Wear Resistance

Fields of Study

  • Environmental science

Readers

  • Combustion and Flow Dynamics.
  • Environmental Engineering.
  • Materials Science.