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Flexibility:
Polyvinyl formal, polyester and polyesterimide
wires are superior and are so flexible that it
can be stretched, twisted without breaking the
film. These properties approve the standard flexibility
in “MOONSTAR” where as polyurethane
wires are inferior.
Elongation:
The Elongation test is for inspection of tendency
similar to the flexibility and elongation of the
coating and displays a tendency similar to the
flexibility tests.
Dielectric Strength:
It is a distinctive feature of “MOONSTAR”
Enamelled wire that breakdown voltage is higher
for its medium coating. This absolute value varies
depending on the measuring method. So far as the
value of breakdown voltage in normal condition
is concerned, however, polyester and polyvinyl
formal and polyesterimide wires are best.
Abrasion Resistance:
In a cut-through test, which serves to determine
heat resistance, the polyesterimide wire shows
the best result, followed by polyvinyl formal
wires comparison.
Heat Shock Resistance:
The property is generally referred to as heat
shock resistance and is important for the purpose
of determine corner radius and drying temperature.
Comparison of this property of various wires at
the same temperature shows that polyvinyl formal
wire displays excellent performance, no crack
occurring on the surface even in case the diameter
of coil corresponds to that of the wire itself.
Polyesterimide wire displays even better results
and stand at higher temperature.
Thermal Life:
When judging thermal life of enameled wires, it
is desirable to judge the life through tests conforming
to actual conditions of use. The current test
methods and judgment criteria in this connection,
however, leave much to be examined for improvement
concerning this examination polyesterimide has
shown excellent results.
Refrigerant Resistances:
With the recent improvement of our living conditions,
demand for refrigerators, Air conditioners, etc.
is on the increase. MOONSTAR has the capability
of meeting the above demands. Polyesterimide wires
have shown excellent results.
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