The electric heating coil and the heating plate are basically the electric heating elements of different shapes produced by the same process. The electric heating coil is usually cylindrical, and the heating plate is Flat type.
For some time, many customers are asking questions about the calculation of the heating coil and heating board power. This article needs to be introduced to solve some customers' questions.
First understand: band heater mainly includes stainless steel band heater, ceramic band heater, mica band heater, lead nozzle type band heater, braided wire band heater, porcelain type electric band heater, plug type electric band heater, lead hole type band heater , injection molding electromechanical band heater, extrusion electromechanical band heater, plastic electromechanical band heater, tail-wing electric band heater, energy-saving band heater, insulation type electric band heater, desktop outlet band heater, thickening band heater and so on. The heating plate mainly includes stainless steel heating plate, cast copper heating plate, cast aluminum heating plate, ceramic heating plate, flat plate heating plate, right angle type heating plate, porcelain block outlet type heating plate and the like.
Secondly, the power calculation formula of the heating coil and the heating plate: power = surface area (cm2) X unit power surface load (w/cm2), surface area = πDX height or length width, surface load is usually set to 3-3.5w/cm2 As long as the formula is used, the power of the starting hot ring and the heating plate can be calculated.
The last point to emphasize is the power calculation of the heating coil and the heating plate, and other factors such as the heating coil and the heating plate, such as ceramic, mica or stainless steel, thickness and the specific environment used.
Ceramic band heater features:
1. Fast heat transfer, uniform heat generation and stable operation.
2, the temperature does not leak, can save energy, the cover is not hot by hand, work safe.
3, the power of the product is high, the power of the ceramic strip is 0.5~1.5 times higher than the ordinary one.
4, Europe and the United States high temperature heating wire, with fast heat dissipation, uniform heating, high temperature stability, etc., can be used at 600-800 °C for a long time.
5, the product has a long service life, because the raw materials are slow to age at high temperatures, so the product has a long service life.
6, in line with the national GB technical requirements. Power deviation +5% ∽-10%.
7. Electrical strength: After sinusoidal AC voltage test with voltage of 1500v/50Hz, there is no breakdown phenomenon after 1MIN.
Electric heating coils are mainly used in rubber and plastic machinery, foaming machinery, injection molding machinery, etc.