Nov 02, 2021
Brief Introduction Of Heating Wire
Iron-chromium-aluminum and nickel-chromium electric heating alloys generally have strong oxidation resistance, but because the furnace contains various gases, such as air, carbon atmosphere, sulfur atmosphere, hydrogen, nitrogen atmosphere, etc., these gases affect the components under high temperature use. All have a certain impact. Although all kinds of electric heating alloys have been treated with anti-oxidation before leaving the factory, they will cause component damage to a certain extent during transportation, winding, and installation, which will reduce the service life and extend the service life. Requires pre-oxidation treatment before use. The method is to energize and heat the installed electric heating alloy components in dry air to 100-200 degrees lower than the allowable maximum use temperature of the alloy, keep it for 5-10 hours, and then follow the furnace Slow cold is enough.
Classification:
Electric heating alloys: according to their chemical element content and organizational structure, they can be divided into two categories:
One is the iron-chromium-aluminum alloy series;
The other is the nickel-chromium alloy series, which have their own advantages as electric heating materials, and are widely used.
Main uses: metallurgical machinery, medical, chemical, ceramics, electronics, electrical appliances, glass and other industrial heating equipment and civil heating appliances.
