Double-loop control system is used in the case of different
temperature needed for the dynamic and fixed template of the die.
According to the different temperature requirements of the two
templates, the temperature of the two loops and the flow rate of
the pump are controlled. At the same time, the power supply of the
cooling water is connected with the main power supply in the same
junction box to reduce the size of the whole machine.
The multi-loop control system consists of several separate loops,
each of which is used to control the different temperatures
required in the product forming stage. Therefore, the system can
achieve perfect results in controlling the technical products of
the die and special process with complex structure.
Oil heater is a large-scale hot oil temperature control equipment.
Its main characteristics are that it can obtain room temperature to
350 C under low operating pressure, large pump flow and high
heating power. Widely used in petrochemical industry, plastic
rubber industry calendering, mixing, vulcanization, textile
printing and dyeing industry heat setting, drying, printing
industry composite, film coating, non-woven calendering heating,
etc. The company is a professional oil heater manufacturer,
introducing advanced German technology, optimizing system design,
providing customers with low-cost and high-quality temperature
control equipment.
Mold temperature is high, melting material cooling is slow, density
is high, shrinkage is large, especially for crystalline material
because of high crystallinity and large volume change, so shrinkage
is larger. Mold temperature distribution is also related to
internal and external cooling and density uniformity of plastic
parts, which directly affects the shrinkage and direction of each
part. In addition, holding pressure and time also have a greater
impact on contraction, while large pressure and long time have
smaller contraction but greater directionality. The injection
pressure is high, the melt viscosity difference is small, the
interlaminar shear stress is small, the elastic rebound after
demoulding is large, so the shrinkage can also be reduced
appropriately, the material temperature is high, the shrinkage is
large, but the directivity is small. Therefore, adjusting die
temperature, pressure, injection speed, cooling time and other
factors can also properly change the shrinkage of plastic parts.
According to the material and product quality of injection moulding
products, such as pet, ordinary, PC oil temperature, good
stability.
According to the required temperature, there is balance
performance.
