MANUFACTURING PROCESS

MANUFACTURING PROCESS

The microwave oven door with the screen helps observe the inside of the heating cavity, thus enhancing its safety and security. The door with the screen helps prevent electromagnetic wave leakage hence increasing its durability (Hiang, 2020, pp. 20). In most cases, the door screen comprises transparent plates having an electromagnetic wave shielding material placed in between. Present door plates are made from aluminum with a thickness ranging from 0.1 to 0.35mm and an aperture of 1.2mm in diameter. The parameters are consciously chosen to ensure that the aperture achieves a rate of more than 40% to prevent any leakage of electromagnetic radiations (Tanaka & Kai, 2017, pp. 1). As such, the manufacturing process ensures that the iron plates are coated with resins to serve as a protective measure. Hence, the door of the microwave ensures that the electromagnetic waves do not affect the surroundings since they are detrimental to human health. In other cases, the tempered screen is strengthened by ensuring that the door’s thickness is not less than 3mm. Chemically manufactured door screens are developed in a manner that articulates a higher internal stress per unit area, thus thermally strengthening the door (Tanaka & Kai, 2017, pp. 1).

References

Hiang, N. L., 2020. Review 3 Joining processes, pp. 1-36

Tanaka, J. and Kai, T., Panasonic Corp, 2017. Microwave oven door screen. U.S. Patent 4,051,341.