Foundry And Investment Casting
TUNNEL FURNACES
Firing & Pre-Heating Shells
Solar Impianti’s continuous tunnel furnaces for final de-waxing, firing and preheating ceramic moulds for investment casting are made using modules that do not require a foundation. As a result, the plants can be of any required length and width.
The oven is insulated with a light refractory lining and ceramic fibre modules, and can operate at temperatures of up to and above 1250°C.It is possible to set the required temperature of various self-regulated areas and thereby determine the heating and cooling processes.
Depending on the situation, products can be fed into the furnaces as follows:
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On plates made of refractory steel (hydraulic pusher)
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carico su carri spinti l’un con l’altro tramite spintore
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On plates made of refractory steel and supported by motorized ceramic rollers.
Shell moulds can be heated using:
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Natural gas or LPG burners
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Electric heating elements