What kind of heating wire is used for ceramic heater?
What kind of heating wire is used for ceramic heating, the ceramic process requires that there are not too many impurities, and then the selection of the heating wire is especially important, which reminds you:
When the iron-chromium-aluminum electric heating wire is heated, the expansion coefficient of the oxide film and the heating wire substrate is not completely the same, and the risk of contamination due to the falling off of the oxide film is small, which is very important for burning ceramics, caps, etc., because The requirements of the products handled by these furnaces are very high.
Electric heating wire is one of the earliest electric heating elements. It uses electric heating as the basic working principle to realize energy conversion. Although the heating wire is a traditional electric heating element, it has not been replaced yet. Now the heating wire is still widely used in various fields, especially industrial production and laboratories. In recent years, electric heating wire has been mostly made of iron-chromium-alloy and nickel-chromium alloy. The maximum temperature of iron-chromium-alloy has reached 1400 °C. On the basis of electric heating wire, electric heating elements such as heating tubes, electric heating plates and electric heating sheets have been developed in recent years, but their essence is still electric heating wires, and the principle cannot be separated from electric heating. The advantages of the heating wire are high heating temperature and heat-resistant temperature, mature technology, easy to manufacture and convenient for use in various electric heating equipment. The shortcoming of the heating wire is that its energy conversion rate is low, and the heating process is accompanied by the illuminating process, so the electric energy conversion rate can only reach 60% to 70%.