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vacuum heat treating furnace Archive



by Joseph

VAC AERO Develops New Hybrid Vacuum Furnace Control System

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VAC AERO’s latest advancement in vacuum furnace controls is a hybrid system based on the Honeywell HC 900 controller for mechanical and thermal functions integrated with Honeywell Plantscape Vista for supervisory control and data acquisition (SCADA). Operator interface is provided through a large, colour touchscreen. Using this system, process information is accessible by operators at the furnace and by process engineers via the network. This provides comprehensive control and monitoring capabilities for higher productivity, reduced costs and increased quality.

Click here for more information on our HC 900 Control System


by Joseph

New NADCAP Accreditations

VAC AERO Press Release VAC AERO’s Oakville Thermal Processing Division has received NADCAP accreditation AC7110 Rev C as well as AC7110/5 Rev C for welding, fusion welding, brazing and tensile testing. VAC AERO provides TIG welding services for several commercial and military aerospace programs. An in-house tensile testing capability was established in response to the growing demand for…

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by Joseph

Dayton Process BV Diffusion Braze Repair

The Dayton Process BV cleaning system is a commercially viable system that was first patented in 1980.  The system is used to remove service oxides from industrial and aero engine turbine components in order to facilitate weld and braze repair.


by Joseph

VAC AERO Launches the “What’s Hot!” Newsletter

VAC AERO Press Release The aim of our Newsletter is to facilitate discussion among our customers, technical and educational communities and suppliers on a variety of metallurgical issues, processes, technologies and equipment.  Please click here to Sign up for our Newsletter 


by Joseph

Vac Aero Receives New Orders Totaling Approx. $3.2 Million

IH Daily News Brief, February 9, 2007

In the past we have rated Vac Aero as one of the largest commercial heat treaters in Canada based upon their vacuum heat treating capabilities and their aerospace heat treating. In addition to this Vac Aero is of course one of the five largest builders of new vacuum furnaces in North America. They have very kindly provided us with a summary of a number of new orders they have received, unfortunately though we can not give you the names of the end customers. Bottom line is that they, like most of the new furnace builders are having a very good year.


by Joseph

New Furnace Installations: Singapore, Korea, United States & Poland

VAC AERO Press Release VAC AERO recently completed seven new furnace installations including a Dayton Process Fluorocarbon Cleaning System at a turbine engine overhaul facility in Singapore and two high pressure gas quench vacuum furnaces at separate locations in Korea. All three of these installations were completed with the valuable support of VAC AERO’s sales…

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by Joseph

by Joseph

Advanced Techniques For Distortion Control During Vacuum Oil Quenching

fi_dcontrol.gifHigh strength steels based on the 43XX series are commonly used for aircraft landing gear components because of their desirable mechanical properties; these alloys are usually heat treated by quenching in oil from the hardening temperature, then tempered. During hardening, internal stresses created from the thermal shock of direct oil quenching almost always cause some degree of distortion in the heat treated component. Interrupted quenching techniques – such as ausbay quenching offer good potential for reducing quench distortion. However, due to the difficulty of machining these alloys in the hardened condition, machining allowances must be minimized. By Jeff Pritchard of VAC AERO International Inc., Oakville, Ontario, Canada.


by Joseph

Vacuum Hardening High-Strength Steels: Oil Vs. Gas Quenching

cover.gifVacuum heat treatment offers an alternative method to traditional salt-bath and controlledatmosphere furnace hardening techniques for high strength steels, such as AISI 4340M and 300M. However, heat treaters must be prudent when choosing between oil and gas quenching for vacuum hardening of high strength steels, because each process has its advantages and disadvantages. High strength steel alloys, such as 4340M, 300M, and others, are most commonly used in the manufacture of landing gear components. These alloys are hardened and tempered to produce ultimate tensile strengths exceeding 280 ksi (1,930 MPa). By Jeff Pritchard and Scott Rush – VAC AERO International Inc., Oakville, Ontario, Canada


by Joseph

New Office in Poland’s Aviation Valley

VAC AERO Press Release, July 30, 2006 VAC AERO has opened a new customer support office in Rzeszow, Poland. Rzeszow is located in the heart of Poland’s Aviation Valley, home to a growing number of international aerospace companies. Through it two Polish facilities, VAC AERO is providing heat treating services and furnace equipment to leading…

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