MPI Metallurgical Processing
Providing metal treating & surface solutions
for precision parts & tooling since 1957!
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Vacuum Heat Treating

heattreat1Vacuum furnace heat treatment is a type of process that can heat materials, typically metals, to very high temperatures and carry out processes such as: Annealing, austenitize, precipitation hardening, aging, stress relieving with high consistency and low contamination.

In a vacuum furnace the product in the furnace is surrounded by a vacuum. The absence of air or other gases prevents heat transfer with the product through convection and removes a source of contamination.

Benefits of Vacuum Heat Treating

  • Uniform temperatures
  • Temperature can be controlled within a small area.
  • Quick cooling of product.
  • Computer controlled to ensure metallurgical repeatability.

Heating metals to high temperatures normally causes rapid oxidation, which is undesirable. Vacuum furnace’s removes the oxygen and prevents this from happening.

Vacuum Capabilities

Six Vacuum Furnaces of various sizes up to 72” x 60” working chamber. Three furnace types including several bottom loaders and one high speed, rapid quench unit. Furnaces used for: Solutioning, bright annealing, hardening, tempering, normalizing, stress relieving and aging. Maximum temperature 2400º F Endothermic is a common atmosphere used in heat treating for applications that require an oxygen reducing atmosphere. The most common heat treatment applications include gas carburizing and carbonitriding. It is important to understand that endothermic gas is t a mixture of different gasses.


Production, Minh Doung
(860) 224-2648 x 403

Quality, Stu Sherman
(860) 224-2648 x 443

Sales, Kris Lang
(860) 224-2648 x 424