L&L ships box furnace with inert atmosphere for aerospace components

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The L&L Special Furnace Co.’s Model FB1046 will be used for processing aerospace parts and various thermal applications. (Courtesy: L&L Furnace)

L&L Special Furnace Co, Inc., has shipped a Model FB1046 floor-standing box furnace to a worldwide leader of high-tech aerospace and associated components.

The company is located in the Southeastern United States. The furnace will be used for processing aerospace parts and various thermal applications.

The work zone is 120” wide by 48” high by 72” deep. The furnace has a temperature gradient of ±20°F from 1,100°F to 2,150°F using eight zones of temperature control with biasing to balance any differential in temperature gradients.

The furnace controller is a Eurotherm Nanodac program control/recorder that has 100 individual programs with up to 25 segments for each program. The furnace also has overtemperature protection with manual reset and backup safety contactors. There is a NEMA12 panel and fused disconnect.

The furnace has special slots that are cut into the door as a passthrough for atmosphere inlet and outlet tubes. This allows for inert atmosphere to flow directly into the customer’s sealed parts manifold, and ensures good atmosphere circulation to the parts as they are being processed. The manifolds are supported on a series of castable piers located inside the furnace.

The furnace is rated for use to 2,200°F and includes a 1,200 CFM venturi for accelerated cooling. There is an electric counterbalanced vertical door with a floor switch for activation.

All of L&L’s furnaces can be configured with options and specifically tailored to meet a customer’s thermal needs. Furnaces may also be equipped with pyrometry packages to meet ASM2750E and soon-to-be-certified MedAccred guidelines.

Options include a variety of control and recorder configurations. A three-day, all-inclusive startup service is offered with each system within the continental U.S. and Canada. International startup and training service is available by factory quote.

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