tunnel type high temperature microwave penetrate friction material self heated equipment
Microwave heating equipment features:
By microwave heating with heating speed, small heat loss, the operation is convenient wait for a characteristic, can shorten the process time, increase productivity, reduce cost, and can improve the quality of the product.
Compared with traditional heating method, microwave heating has the following features:
Uniform heating, fast:
General heating method for heating the surrounding environment, to heat radiation or by means of hot air convection heating surfaces first, and then through the conduction of heat conduction, the inside of the object.This method is of low efficiency and long heating time.
Is the biggest characteristic of microwave heating and microwave was produced inside the heated objects, internal heat source from the object, uniform heating, will not result in a coke, "unripe" raw phenomenon, to improve the quality of our products at the same time because of the "inside heating" at the same time greatly shorten the heating time, high heating efficiency, improve product yield.Microwave heating of inertia is small, can realize rapid control of temperature rise and fall, conducive to continuous production of automatic control.
The heat generated by the microwave heating and the wastage of the heated object has a close relationship.All kinds of medium dielectric constant in the range of 0.0001 to 0.5, so all kinds of objects the ability to absorb microwave has a lot of differences.General that dielectric constant of the big medium is easy to use microwave heating, small dielectric constant of medium is hard to use microwave heating.This is what has the characteristics of selective heating of microwave object.
Control in a timely, responsive:
Conventional heating methods, such as steam heating, electric heating, infrared heating, etc., to achieve a certain temperature, will take time, in the event of a malfunction or stop heating, the temperature drop and a long time.And microwave heating can quickly within a few seconds to microwave power to set the desired value, heating to proper temperature, easy automation and continuous production.
Strong field of high temperature:
Dielectric absorption per unit volume of the microwave power is proportional to the square of the electric field intensity, so that you can in the high field strength
Machining objects in a very short period of time under the processing temperature rise to the need.Strong field of high temperature in the quality of the products is not affected, the sterilization effect.
Microwave heating penetration ability:
Far infrared heating frequency is higher than the frequency of microwave heating and heating efficiency is better, but it's not, there still exist a penetration of the concept.Although far infrared heating has many advantages, is widely applied, but from the penetrating power of object, far infrared is less than the microwave.What is penetration?Penetration is electromagnetic waves penetrate into the internal power, electromagnetic wave propagation from the surface into the media and in its internal, because energy can be absorbed and converted into heat energy, it carries the heat as the distance on the surface of the deep medium in the form of index attenuation.Electromagnetic wave penetration depth and the wavelength is the same order of magnitude, in addition to larger objects, generally can be done inside heating together.And the wavelength of infrared heating is very long, when heat penetration ability is poor, under the far infrared radiation, only a thin layer of hot object, and to internal heat mainly by conduction, such not only heating time is long, and easy to cause heating uneven.According to the contrast, the penetrating power of microwave heating is much better than that of far infrared heating.