Kinetic Analysis and Characterization of Epoxy Resins ... - FedOA
Kinetic Analysis and Characterization of Epoxy Resins ... - FedOA
Kinetic Analysis and Characterization of Epoxy Resins ... - FedOA
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Experimental 58<br />
Figure 2.1: Schematic microwave oven structure.<br />
The waveguide has the function <strong>of</strong> transferring the energy from the point in<br />
which it is generated to the point in which it is used, avoiding considerable losses.<br />
It is produced in metallic material so the radiations travel through subsequent<br />
reflections.<br />
The waveguide has the length proportional to the frequency <strong>of</strong> the<br />
waves propagating within. A schematic representation <strong>of</strong> a waveguide is illustrated<br />
in Figure 2.2.<br />
Figure 2.2: Wave propagation in a rectangular waveguide.<br />
The applicator is the device used for the energy distribution on the workpiece.<br />
This is a structure expressly designed for the dielectric heating under microwave<br />
radiations. A good applicator carries out this task in an efficient, safe, reliable,<br />
repeatable <strong>and</strong> economic way. Generally the applicators can be subdivided in two<br />
categories<br />
1. monomodal;<br />
2. multimodal.<br />
58