1 Rapid heating and high efficiency. High-frequency heating is an approach to achieve the overall heating within the medium, which differs from conventional heat transfer and heating methods. Practice has proved that if the workpiece thickness is less than 20mm, conduction heating time is generally 1min / mm. If the thickness is greater than 20mm, the heat conduction time will be greatly extended; The thickness of the workpiece has much less impact on high frequency heating. A thicker workpiece contributes to more obvious advantages of high-frequency heating.
2, Good heating uniformity. As the heating occurs throughout the electric field, the object in the electromagnetic field is evenly heated, so that the internal and external temperature of the heated object is consistent. This can effectively enhance glue curing strength and improve product quality.
3, Heating selectivity. Due to a certain frequency, various substances have different dissipation factors and different electric field energy absorbed. Appropriate selection of the frequency can heat a substance in the same electric field, which greatly improves the heating efficiency and reduces energy consumption. Take wood plate alignment as an example, where the heating object is the glue line, not the wood.
4, Strongly controllable and more adapted to the automated production, small space consumption and low labor intensity. When the power is turned on, the high-frequency heating begins; when the power is turned off, the heating stops. Heating effect can be controlled by heating time. High-precision and automated control of high-frequency heating facilitate effective connection with production equipments of the plants, which allows the plants to form a stereotyping line.
5, Environmental friendly without smoke, smog and high-temperature radiation. Safe and healthy.
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