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Main Advantages of the Microwave Heating

  • Speeding up: minutes instead of hours!!
  • Volume Energy transmission - cold vessel
  • ENERGY Savings, Room Savings
  • Efficiency 70%
  • Automatization
  • Safety *
  • Environment *

Comparing to the processes using the combustion


REFERENCES

UNIFORMITY OF HEATING

It is very high by using microwaves. For that reason, the improvement of mechanical properties of a profile, or production of larger profiles with complex shapes can be achieved. The MW energy batching depends, besides the size and shape of a profile, also on a resin and catalyst type.

DRYING OF FIBRES

If microwaves are used also for removing atmospheric moisture from a bundle of glass and carbide fibers, extremely favourable mechanical properties, or reduction of profile thickness, can be achieved. That is very important for high quality flat profiles.

 

Composites

PRINCIPLE

Macromolecules of a catalyst contain polar groups, which produce local overheating in microwave (MW) field at macromolecular level and thermal difference between polar groups inside the molecules and the other non-polar parts of molecules. The stronger the dipole moment, the higher the temperature of local "hot" spots, which accelerates the hardening reaction.

DIFFERENCES IN HEATING METHODS

In comparison with conventional heating at the same temperature and with the same concentration of components entering the reaction, epoxide resins belong to materials with higher speed of reaction during MW heating. With microwaves, the exothermic reaction can be started uniformly in the whole volume of the material, whereas traditional heating in hardening head affects only the surface of the profile.

SPEED

Microwaves distinctly accelerate processing capacity, because the speed of heat transmission into the core of a material significantly limits the speed of drawn profile passing the line. The hardening reaction can be thus achieved by very small MW outputs.