Strip heater is the most suitable cylinder heater to fix up in the
outside of plastic extruder and plastic injection molding. And it
is used to thermal conduction and heat.
This kind of heaters chooses mica as the basic material. Because
mica withstands high voltage spikes, high heat conductivity,resists
moisture, is insert to most chemicals and is flexible enough to
confirm to the curve of the cylinder without cracking. Its basic
structure is twisting the nickel-chrome wire evenly on the mica
slice, wrapping up and down by the mica slice to insulate, packing
with the copper panel or the stainless steel outside, and then
curving it into cylinder.
The heater which has one partition is called single slice form. If
it has two partitions it is called double slice form. The standard
products all use metal strips to tighten. The carry sons which
connect to the power all use the screw type as the standard. Its
made- to-order shape can be the line-out type. But for the machine
structure it can’t be durable.
Although strip heater has a smooth surface and flexibility, it
still needs choosing exact size to ensure the heated material has
high efficiency thermal conduction was not good, the outward
surface temperature will exceed the allowed. And the service life
will be influenced.