MIL-F-80056C
3.2 Design, The
furnace shall be new (not
a prototype),
and of the
manufacturer's current production models capable of operations in accordance with
the requirements herein. The furnace shall include all components, parts, and
features necessary to meet the performance requirements specified herein. All
parts subject to wear,
breakage, or distortion shall be readily accessible for
adjustment, replacement or repair. The design and construction of the machine shall
be in accordance with either the U.S.
Customary System of Units (US) or the
International System of Units (SI).
3.2.1 Measuring and indicating device calibrations. Measuring and indicating
devices shall be graduated in inch-pound (see 6.5.1), metric (see 6.5.2), or dual
(inch-pound and metric) units as specified by the procuring activity (see 6.2).
Regardless of the measurement system used, all measuring and indicating devices on
the furnace shall be graduated in the same system.
3.2.2 Type I. The Type I furnace shall be of the round pot design, externally
resistance heated. The heating elements shall surround the pot and shall be
located on the insulation wall in the space between the pot wall and Insulation.
of the rectangular pot
furnace shall be
The Type II
3.2.3 Type II.
internally heated by either suspended immersion-type electrodes, or
design,
internally heated by built-in submerged electrodes.
The Type III furnaces shall be of the rectangular pot design
3.2.4 Type III.
internally heated-by immersion resistance elements. When required, the Type III
furnace shall be provided with quench pumps, heat exchangers, and agitation devices
for quenching processes. Quench equipment and performance requirements shall be as
specified (see 6.2).
3.2.5 Reclaimed materials. The machine may contain reclaimed materials to the
maximum extent possible provided such materials will not jeopardize the intended
performance, or design life of the machine. Reclaimed materials shall have
use,
been collected or recovered from solid waste and reprocessed to become a source of
raw materials, as opposed to virgin raw materials. None of the above shall be
interpreted to mean that the use of used, rebuilt, or remanufactured end products
are allowed under this specification.
3.2.6 Energy efficiency. The furnace and its components that directly consume
energy in normal operation shall be designed and constructed for energy efficiency
in accordance with the developments available within the industry.
3.2.7 Controls. All mechanical and electrical operating controls shall be
located convenient to the operator's work station(s).
and
3.2.8 Safety and health requirements. All parts, components, mechanisms,
assemblies furnished on the furnace, whether or not specifically required herein,
shall conform to all requirements of OSHA 29 CFR 1910. Additional safety and health
guards, or other safety
requirements shall be as specified (see 6.2). Covers,
devices normally furnished as standard on the manufacturer's commercial furnace
supplied to the commercial market shall be provided for the point of operation and
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