Development of Microwave Waveguide Install Type for Uniform Heating of Sheet Materials

The work demonstrates the results of experiments and theoretical studies in the field of curing of polymer sheet composite materials. These materials had to meet certain requirements. Such as: thickness (8 mm) width (500mm). Also, the microwave emitter had to work at a certain frequency. The frequency of the electromagnetic field needs to be 2450 MHz. The relevance of the work done is that these technologies allow the process of curing a sheet material in accordance with all modern standards. This technology reduces energy costs, reduces emissions into the environment. The final product, today finds application in various industries large and small industries. In the present work were calculated microwave installation for even heating of sheet material. Calculations were made assuming that the heating temperature of the sheet material was equal to +180⁰С. The basis of the microwave installation was rectangular waveguide on the wave type H10. In the case of the waveguide (along the wide wall) was done a narrow slit through which was channeled sheet material. It is important that this microwave setting the size of the narrow wall is changed in the direction of the energy distribution of the electromagnetic field. In this case, the amplitude of the electric field remains constant across the width of the sheet material. The difference between the calculations and experimental values of temperature in the sheet material was not more than 2% of the nominal value of the temperature of the sheet of polymeric composite material was not more than 7%.