Thiết kế chế tạo hệ thống làm nguội trong khuôn ép nhựa

Some attention when designing
Cooling mold
Cooling core
Some attention when designing
1
Cooling system
located as close
to the mold
surface as
possible, but
should pay
attention to the
mechanical
strength of the
material on site
2
System diameter
should be greater
than 8 mm (8mm
or 10mm) for
easy processing
and avoid the
flow rate of the
cooling fluid is
different.
5
Pay attention
to the
cooling of
the thickness

part of the
product
4
Pay
attention
to the
thermal
conductivi
ty of cast
materials.
3
Split system
cooling off areas
to avoid too long
cooling channels
leading to the
large
temperature
difference
6
Note to warping phenomenon due
to the different shrinkage when
the thickness of different
products.

Helix bae Spiral bae
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BUBBLER
THERMO PIN
Cooling system
Theoretically, cooling time is proportional to the square of the
heaviest part wall thickness or the power of 1.6 for the largest
runner diameter. That is#
Công thức tính độ khuếch tán của nhựa nóng chảy
Nói cách khác tăng gấp đôi chiều dày khuôn sẽ làm tăng thời
gian làm nguội lên 4 lần
Reynolds number
Coolant ow types and corresponding
Reynolds number ranges
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