Heat Treat Furnaces with protective atmosphere
Click to enlarge
The Keith Heat Treat Furnaces with Automatically Controlled Inert Protective Gas Atmosphere have become industry’s standard throughout the world for both small scale factory production and laboratory R & D where full control of the flow conditions of the inert input gas is necessary to ensure optimum product quality. These furnaces are used in the manufacture and testing of metals, ceramics, glass and electronics. Their most common application, however, is for metallurgical heat treatment requiring the reduction of surface discoloration and scaling during the heating processes of hardening, stress relieving, annealing, tempering and sintering necessary to alter the mechanical properties of an alloy – both iron-based and non-ferrous. Inert atmospheres used in these furnaces include nitrogen, argon and helium.
To avoid oxidation on steel-, stainless steel- and Titanium parts during heat treatment, free oxygen in the furnace chamber must be eliminated. This can be achieved by injection Nitrogen or Argon into the furnace chamber to create an inert (passive) atmosphere.
For tool room shops, laboratory- or R&D environments, small benchtop furnaces with protective atmosphere control are an economic solution. A programmable event in the program recipe to turn on or off the gas is wired into the temperature controller. The temperature controller will then turn on or off the Nitrogen, Argon or non-explosive (95% N, 5% H) gas flow as indicated in the airflow meter mounted in the control panel.
Keith Atmosphere Controlled Heat Treat Furnaces can also be ordered with a variety of optional features & upgrades to help make them even better suited for your particular heat processing applications. Options include bubbler to maintain consistent positive chamber pressure, pneumatic door openers, thermocouple ports, quench tanks, automated data, standard controls and special controls, as well as an air tight chamber retort (designed for sealed atmosphere operation at high temperatures up to 2012°F). We also offer standard control packages to meet NADCAP and AMS 2750E specifications.
Typical applications for heat treat furnaces with protective atmosphere are:
A list of models is available under the Category Files at the bottom of this page and instructional videos are uploaded on our Youtube Channel.
To avoid oxidation on steel-, stainless steel- and Titanium parts during heat treatment, free oxygen in the furnace chamber must be eliminated. This can be achieved by injection Nitrogen or Argon into the furnace chamber to create an inert (passive) atmosphere.
For tool room shops, laboratory- or R&D environments, small benchtop furnaces with protective atmosphere control are an economic solution. A programmable event in the program recipe to turn on or off the gas is wired into the temperature controller. The temperature controller will then turn on or off the Nitrogen, Argon or non-explosive (95% N, 5% H) gas flow as indicated in the airflow meter mounted in the control panel.
Keith Atmosphere Controlled Heat Treat Furnaces can also be ordered with a variety of optional features & upgrades to help make them even better suited for your particular heat processing applications. Options include bubbler to maintain consistent positive chamber pressure, pneumatic door openers, thermocouple ports, quench tanks, automated data, standard controls and special controls, as well as an air tight chamber retort (designed for sealed atmosphere operation at high temperatures up to 2012°F). We also offer standard control packages to meet NADCAP and AMS 2750E specifications.
Typical applications for heat treat furnaces with protective atmosphere are:
- Stress relieving
- Nomalizing
- Bright Annealing
- Aging
- Drawing
A list of models is available under the Category Files at the bottom of this page and instructional videos are uploaded on our Youtube Channel.
Category Files:
List of Models for Dual Treat Furnaces Automatically Controlled Protective Inert Gas Atmosphere
