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Eure Inox s.r.l.

Furnaces  Electric wire-annealing furnace

The choice to install an electric-powered furnace rather than a gas-supplied one for wire-annealing turned out to be a far-sighted one, both for the increasingly rigorous sustainability requirements of businesses and for the quality of the finished products. When the furnace was purchase in 2014, gas technology was certainly better known and consolidated, but Eure Inox "dared" with a strategic choice that has proven to be a winning one.
The production process is divided into the following 5 stages, illustrated in the boxes below: degreasing, material entry, controlled cooling, salting and final product output.

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Electric wire-annealing furnace Production stages

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Degreasing

The ultrasonic degreasing session for the wires surface cleaning is also furnished with a zero-impact degreasing water purifying system.

Scheme

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Eure Inox

Entry / Annealing

In this stage, the drawn and cold-worked steel is introduced into the furnace, where annealing takes place.

Input resistance values

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Eure Inox

Cooling down

The steel is softened during annealing by generating new grains (recrystallization).
The following air cooling will allow to maintain grains in the desired size.

Output resistance values

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Eure Inox

Salting

Salting facilitates the subsequent drawing operation and avoids the occurrence of defects during section reduction.

Detail

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Eure Inox

Final result

At the end of the manufacturing process, the wire is wound up and roughness values are controlled.

Roughness inspection (Rmax and Ra)

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