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Vacuum Furnace Systems, controls and Manufacturing
Vacuum Brazing and Vacuum Heat Treating Services
Thermal Spray Coating services, Plasma and High Velocity Oxy-fuel (HVOF) Spray Coatings and Inorganic Paint and Pack Coatings
Vacuum Furnace Technology column by Dan Herring, Metallography column by George Vander Voort, Vacuum Brazing column by Dan Kay, Vacuum Pump column by Howard Tring and other Educational Resources

Manufacturers of Quality Vacuum Furnace Systems & Controls.

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vacuum-furnaces

VAC AERO designs and builds vacuum furnace systems and controls with the highest quality standards that will fulfill any of your specialized processing needs. From small horizontal units to large vertical models VAC AERO vacuum furnaces are ideal for a broad range of vacuum processing applications such as hardening, tempering, stress relieving, brazing, normalizing, annealing, and sintering of metals, specialty alloys, and engineered materials. VAC AERO vacuum furnaces operate worldwide in diverse applications in aerospace, power generation, medical, nuclear, tool & die, research and other high-tech industries. VAC AERO’s Furnace Manufacturing division is part of the VAC AERO International Group of Companies in business since 1959. VAC AERO also offers a wide range of vacuum heat treating and coating services and operates seven plants in Ontario and Quebec, Canada and in Kalisz and Rzeszow Poland.

VAC AERO News, Education & Training

vertical-vacuum-furnaceVAC AERO Receives Orders for 3 Replacement Hot Zones

VAC Burlington, Ontario, February 16, 2015 - VAC AERO has recently received orders for three complete all-metal hot zone refurbishments for customers in Florida, Connecticut and Indiana, in the Aerospace, Medical and Commercial Heat Treatment industry sectors. The retrofit work is for two horizontal and one vertical furnace. VAC AERO hot zones feature unitized construction for easy removal and maintenance. The lightweight design’s low thermal mass enables faster quenching and longer life. The heat shield package consists of one layer of .020” thick lanthanted molybdenum (Mola) sheet backed by one layer of .010” thick molybdenum sheet, and three layers of .014” stainless steel sheet.

Vacuum Technology with "The Heat Treat Doctor"

gas-quench-vacuum-furnaceTips for Selecting Vacuum Furnace Equipment – Part One

Acquisition of a vacuum furnace represents a major capital equipment investment and one that creates a long-term relationship with your supplier partner. Thus the choice of what to buy and who to purchase it from requires careful planning and considerable up-front research. You need to know when and how to apply vacuum technology, if it will be the most cost effective solution for what you need to do, what questions to ask and what information to provide. The process begins by understanding your specific needs and asking all the right questions. Is it more prudent to upgrade an older piece of equipment, purchase new or purchase used?

Vacuum Brazing with Dan Kay

external-quench-vacuum-furnaceBraze Fixturing via Tack-welding -- the Good and the Bad!

Highly complex assemblies, for a variety of end-use applications in such diverse fields as automotive, aerospace, medical, electronics, and tooling (just to name a few), can be effectively made via brazing. For this to happen, however, each of the individual components in these complex assemblies must be able to be held together in proper alignment, have the appropriate brazing filler metal (BFM) applied to it, and this assembly then moved into a brazing-furnace, where it can be heated until the BFM melts and flows into the joints by capillary action, thereby permanently joining the components together to make a complex assembly.

Metallography with George Vander Voort

high-pressure-vacuum-furnaceUse of the Scanning Electron Microscope in Failure Analysis

Commercial introduction of the Scanning Electron Microscope (SEM) in 1965, and its subsequent rapid development and implementation in metallographic laboratories, has had a profound influence on failure studies. The chief advantage of the SEM is its great depth of field in comparison of the light microscope. Observations can be made over a much wider range of magnifications including those above the range for light microscopes (and those below the range of TEM replicas). Examination of fracture features by SEM is much simpler than through the study of replicas with the Transmission Electron Microscope, TEM.

Vacuum Pump Practice with Howard Tring

horizontal-vacuum-furnaceCalculating Evacuation Time

When a vacuum system is designed it is often necessary to select a mechanical vacuum pump or pump set that will evacuate the chamber and associated piping in a certain amount of time. In laboratory or research situations that may not be as necessary as in a production environment where the time to complete a process has quite a lot to do with the cost of the manufactured part. In addition, the cost of the vacuum system has to be taken into consideration as well. Larger pumps may reduce the evacuation time, but also are more expensive. There has to be a balance between all the parameters.

Front and Bottom Loading Vacuum Furnaces

vacuum furnace-0115Constructed of the finest materials and craftsmanship, VAC AERO’s high performance vacuum furnaces are operator friendly and designed to minimize maintenance and downtime to deliver outstanding quality and  value to commercial and in-house heat treaters alike. VAC AERO’s vacuum furnaces are designed for rapid heating rates to very uniform temperatures at high vacuum levels and can be customized to suit unique applications such as high pressure gas quenching, high temperature heat treating, ultra-clean processing and more. VAC AERO’s high efficiency hot zones are designed for easy maintenance and reduced energy consumption. Our external quench system allows for easy maintenance of the heat exchanger and quench motor. A high efficiency blower and motor combine fast cycle times and quenching speeds to provide uniform gas distribution and superior cooling performance from processing temperatures at pressures of up to 10 bar.

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