Some knowledge of heating wires
In the electric heating element industry, the main materials of heating wire are iron-chromium aluminum and nickel-chromium electric heating alloys. Iron-chromium-aluminum and nickel-chromium electrothermal alloys generally have strong oxidation resistance. In the process of heating wire production The reason why the heating wire is often damaged is because it will produce a variety of gases when calcined in the furnace, such as air, carbon atmosphere, sulfur atmosphere and hydrogen, nitrogen atmosphere, etc., these gases have a certain impact on the components under high temperature use, although a variety of electric alloys are oxidation treatment before leaving the factory, but in the transportation, winding, installation and other links will cause component damage to a certain extent, and reduce the service life. In order to better extend the service life of the heating wire, the customer pre-oxidation treatment is carried out before use, and the method is to heat the installed electric alloy element in dry air to 100-200 degrees lower than the allowable temperature of the alloy, keep warm for 5-10 hours, and then cool slowly with the furnace. The advantage of this is that the heating wire can last longer.
Heating wire product structure performance use description (product introduction):
Heating wire according to its chemical element content and microstructure of the difference, can be divided into two categories: one is iron-chromium-aluminum alloy series, the other is nickel-chromium alloy series, they as electric heating materials have their own advantages, so in the domestic production and wide use.
