Wire Oxydizing Furnace

This furnace has been specifically designed for oxydizing wire. The furnace has twelve open ended tubes to feed wires and features a gas system that allows control of the wire tube atmosphere. A unique temperature gradient is created by three independantly controlled hot zones and water cooled entrance and exit tunnels. The tunnel outer flanges adapt to a wire feed system.

Chamber and Hot Zone

The chamber is designed to accommodate twelve feeding wires. The wires will pass first through twelve (12) stainless steel guide tubes located on the right. After exiting this zone the wire will move into the higher (1200^oC Max.) temperature furnace. Once the wire has passed through this temperature zone, the wire will enter the cooling zone at the left..

The furnace chamber is horizontally split and hinged for access to the heating elements and shielding..

The Hot Zone is a round design using encapsulated Ni-Cr wire heating elements and ceramic insulation. The usable hot zone is 6" ID X 36.0" long (other sizes available) and is designed to easily reach a temperature of 1200^oC. The hot zone is divided in three areas which are independantly controlled, allowing custom temperature profiles per zone.

Hot zone temperatures are measured by Type "K" thermcouples.

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Instrumentation

To provide power to the hot zone three SSR Power Controllers are supplied, efficiently modulating power to the hot zone depending on heat requirements.

All instruments, contactors, transformers and controllers are mounted in a single enclosure. Amp and Volt meters allow monitoring of the power usage per zone.

The furnace temperatures are controlled by Eurotherm digital and programmable temperature controllers using Type "K" thermocouples to measure temperature. Each zone is also supplied with a seperate over-temperature controller and thermocouple.

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Process Gas System

This furnace system was designed to operate in an oxygen or inert gas environment. A gas manifold with flow meters is provided to modulate and distribute gas to the different zone areas. A selector switch sets the type of process gas used.

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Water cooling manifold

The water manifold provided with this system is designed to adequately cool the furnace tubes. The water manifold has several circuits supplying water to the various parts of the furnace. Each one of these can be manually adjusted to allow each circuit just the proper amount of flow to save water and allow a drain temperature of approximately 100F.

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Utilities

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