How can I keep a tube centered in a fitting for brazing when the dimensions of the tubes and fittings have such broad, loose commercial tolerances and the tube tends to “wobble” inside the fitting?

Abbott Furnace Company received an order from a global automotive supplier for a continuous-belt, stainless steel brazing furnace. It is scheduled to be installed in Mexico in the second quarter of 2020. Abbott Furnace will design, manufacture and install the five-zone, electrically heated furnace, which is rated for 2150°F (1175°C) and includes a 30-inch-wide belt and silicon-carbide muffle.

Solar Manufacturing shipped a vacuum furnace to a company in Virginia that services the tool-and-die industry. The furnace, which has a load weight capacity up to 250 pounds and a maximum operating temperature of 2400°F (1315°C), will be used for solution annealing, aging and brazing. It includes a graphite-insulated hot zone and the SolarVac Essentials control system.

You mentioned that your brazing cycle was such that the molten BFM was held at brazing temperature for 10 minutes.

Aluminum brazing is a growing industry around the world today, and I teach a lot about this topic in each of my brazing training seminars. This article discusses dealing with the oxide as well as brazing aluminum to stainless steel.

Wall Colmonoy will offer a spring session of its Modern Furnace Brazing School May 12-14 at its Aerobraze Brazing Engineering Center in Cincinnati, Ohio. Engineers, technicians, quality managers, production managers and others will participate in hands-on practical applications while learning about brazing technology from experienced engineers.

I recently read your blog about isothermal solidification (ITS). I want to be sure I understand how it relates to ordinary furnace brazing with the BNi-2 nickel filler metal we use, where the time at temperature is limited to only 10 minutes.

Brazing is a process of joining two or more metal parts by using a melted filler material commonly referred to as brazing alloy.

Solar Atmospheres of Western PA completed construction of a new brazing and assembly room. Though built primarily to accommodate a large aluminum brazing project for a specific customer, the room will be used for other brazing and assembly work. The temperature- and humidity-controlled room provides a clean environment for the critical assembly and alloying methods employed by Solar. All inventories of the clean components for final assemblies will be safely stored within the new space.

Picking up where we left off, here’s where the tiny size of the interstitial atom comes into play! Because it is so small, it is only weakly “bonded” into the BFM atomic structure and is thus able to quickly diffuse through that atomic structure.