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Optimise cooling rotational moulding
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SUPACOOL FUTURE PROOFING YOUR BUSINESS WITH INNOVATIVE TECHNOLOGY. •TRAVELS WITH MOULD •WATER MIST INTERNALLY. •COOLS FROM INSIDE •BETTER SHAPE RETENTION. • PHYSICAL PROPERTIES OK • REDUCED COOLING TIME. • BALANCED COOLING • A STEP CHANGE. www.ianhansenconsult.com USE SUPACOOL FOR FASTER MOULD COOLING. Supacool, manufactured by La Plastecnica, is a cooling system designed to accelerate the cooling of plastic components within the mould. This is achieved by atomising water inside the plastic part via an air activated intruding nozzle. The water removes heat energy by vaporising into steam, which is subsequently vented out of the mould. 50% COOLING TIME REDUCTION POSSIBLE. Production trials in Australia and New Zealand have successfully demonstrated cooling cycle time reductions of up to 50% are possible for water tanks ranging from 500L to 5000L. Supacool is ideal for bi-axial ovens as the Supacool unit attaches and travels with the mould during the complete heating and cooling cycle. They can also be used on rock and roll machines. External fan forced air cooling is not fast enough. To maximise cooling rate Supacool benefits from simultaneous external water spray. This also helps balance the internal and external cooling profile. SUPACOOL INSTALLED ON 500L MOULD. 1:MACHINE ARM, 2:MOULD, 3:AIRLINE COUPLER, 4:SUPACOOL UNIT ROTO CONSULT OPPORTUNITY FOR IMPROVEMENT Ian Hansen | www.ianhansenconsult.com | email: [email protected] WATER ABSORBS SIGNIFICANT AMOUNTS OF ENERGY WHEN IT VAPORISES RELATIVE HEAT TRANSFER COEFFICIENT VALUES FORCED AIR 5 EVAPORATING WATER 1000
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Transcript of Optimise cooling rotational moulding
SUPACOOL
FUTURE PROOFING YOUR BUSINESS WITH INNOVATIVE TECHNOLOGY.
•TRAVELS WITH MOULD
•WATER MIST INTERNALLY.
•COOLS FROM INSIDE
•BETTER SHAPE RETENTION.
• PHYSICAL PROPERTIES OK
• REDUCED COOLING TIME.
• BALANCED COOLING
• A STEP CHANGE.
www.ianhansenconsult.com
USE SUPACOOL FOR FASTER MOULD COOLING.
Supacool, manufactured by La Plastecnica, is a cooling system
designed to accelerate the cooling of plastic components within
the mould.
This is achieved by atomising water inside the plastic part via
an air activated intruding nozzle. The water removes heat
energy by vaporising into steam, which is subsequently vented
out of the mould.
50% COOLING TIME REDUCTION POSSIBLE.
Production trials in Australia and New Zealand have successfully
demonstrated cooling cycle time reductions of up to 50% are
possible for water tanks ranging from 500L to 5000L.
Supacool is ideal for bi-axial ovens as the Supacool unit attaches
and travels with the mould during the complete heating and
cooling cycle. They can also be used on rock and roll machines.
External fan forced air cooling is not fast enough. To maximise
cooling rate Supacool benefits from simultaneous external water
spray. This also helps balance the internal and external cooling
profile.
SUPACOOL INSTALLED ON 500L MOULD. 1:MACHINE ARM, 2:MOULD, 3:AIRLINE COUPLER, 4:SUPACOOL UNIT
ROTO CONSULT OPPORTUNITY FOR IMPROVEMENT
Ian Hansen | www.ianhansenconsult.com | email: [email protected]
WATER ABSORBS SIGNIFICANT
AMOUNTS OF ENERGY WHEN IT
VAPORISES
RELATIVE HEAT TRANSFER
COEFFICIENT VALUES
FORCED AIR @ 5
EVAPORATING WATER @ 1000
www.ianhansenconsult.com
Supacool internal water cooling will reduce your cooling cycle time. It will challenge you to reduce your oven
heating cycle time to enable your oven to keep up with cooling speeds.
Supacool provides the step change in the sophistication of rotational moulding
.
MOULD IN DEMOULDING STATION READY FOR SERVICING
PRODUCTION TRIAL – 5000L TANK.
Supacool was installed on a fabricated steel 5000L water
tank tool, using a 2” Table E flange, running on a standard 4
arm carousel machine. Supacool was installed separate to
the existing vent. Oven temperature was 260C for 29minutes.
Standard cooling was 20minutes ambient air in pre-cool
station and 20minutes in cooling bay, with fan forced air.
Using the same oven process conditions we compared the
effect of using internal water cooling against standard fan
forced cooling. In the examples shown to the right you can
see that there was an 11minute or 44% difference.
When you look at the thermographs you can see that the
maximum temperature for both plastic tanks was similar (82C
vs 86C). The Supacool tank displays a point temperature of
56.9C which reflects the effect of the external water spray
used. The pattern indicates poor water misting design. The
external cooling is not uniform. Improving the external water
misting would enable faster cooling of the tank, with a 50%
reduction in cooling time achievable.
Ian Hansen | www.ianhansenconsult.com | email: [email protected]
SUPACOOL INTERNAL COOLING PLUS FAN FORCED AIR AND WATER
ONLY FAN FORCED AIR COOLING
5000L TANK IMMEDIATELY AFTER REMOVED FROM MOULD
ROTO CONSULT OPPORTUNITY FOR IMPROVEMENT
25MINS 14MINS
14MINS
