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The heater elements used in the HotFlo hot sprue
systems are rugged and provide intense heating power.They require an operating voltage of between 220 Volts and 240 Volts
of AC (Alternating Current).The power requirements of
each element depends on the length and diameter, but is generally in the range
of 450 to 1200 watts.
Each
element has at least three connecting leads: Active (brown), Neutral (grey) and
Earth (Ground),(yellow and green). Some also have two extra leads for an
in-built thermocouple, however it is a J-Type termocouple, the use of which is
not recommended in a die casting application. We supply a separate thermocouple
embedded in the sprue bush for temperature control.
Safety Requirements
It is the responsibility of the customer to ensure that the heater
elements are wired into the die by authorised and qualified people, observing
all national and regional Codes of Practice and Laws relating to Electrical
Installation, with safety in mind at all times.
We recommend the use of heavy duty industrial sockets and plugs.
These should be securely mounted to the die block in a region where they will
not be damaged by die movement, lifting or die opening
stroke.
All plugs and
sockets must be properly earthed (grounded) to ensure electrical
safety in the event of physical damage to the heated
element.
Wiring channels in the dies must be
adequately sized to prevent damage to the insulation during installation or
maintenance, and channels should be routed around regions where the temperature
exceeds 180 Degrees C.
These heavy duty plugs and
sockets clamp firmly together with the spring loaded lever clamps. The rubber
seals prevent the ingress of metal flash particles and die lube. A high
integrity electical connection of the heater element and the thermocouples is
maintained, maximising production uptime.
The use
of these heavy duty plugs and sockets is the key to high
reliability
See: Wiring of
Die Plugs |
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