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.

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 

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.

High 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.

Vacuum 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

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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In order to maximize efficiency in modern gas turbine engines, manufacturers have developed methods of obtaining minimal clearance between rotating turbine blade tips and stationary engine casings.

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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VAC AERO Press Release, July 30, 2006 VAC AERO Kalisz Sp. z o.o. is expanding its heat treating operations with the addition of a second vacuum furnace. The facility, located in Kalisz, Poland, offers vacuum heat treating and brazing services, thermal spray and inorganic coatings and metallurgical laboratory services. The furnace was designed and built…

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VAC AERO Press Release, July 22, 2006 VAC AERO Manufacturing Polska recently won the Acanthus Aureus Medal at the Surftec Exhibition in Poznan, Poland. The prize is awarded by the exhibition organizers to the display judged best achieving the marketing strategy of the exhibitor. The exhibition team was headed by Alena Iwanowska, Marketing Manager at…

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