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Technical Articles About MHI
Technical
Articles |
Graphite & Tungsten Furnaces |
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MHI offers a wide range of Graphite
and Tungsten furnaces which may be used up to 2500°C. Models
are offered which are used in vacuum. High pressure quenching
is also offered as an option. Choose from several models by
contacting MHI. While specifying
your furnace please provide details of:
Generally the Graphite and tungsten furnaces are cold-shell, cylindrical box type with front opening. With atmospheres which either have vacuum rating in clean dry atmosphere~ 0.005 torr or Inert Gas. When graphite heating elements are used, they are slotted or cylindrical rod heater with cold end terminals and are designed to ensure uniform free radiation with ease of replacement. Heating elements are generally mounted on three sides. The electrical feed-through's are water cooled up to the copper-graphite junction to avoid build-up of any junction resistance and subsequent arcing. The feed-through flanges are mounted with "O" rings and are water cooled. The flanges are mounted with adjustable bolt/ screw arrangement, the copper feed-through is a special ball and socket design which gives ample alignment for ease in replacement of elements. |
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