1. The outer surface of the stainless steel tube is black stainless steel that has been blackened. The innermost is the heating wire, and the middle is insulated with magnesium oxide powder, which is heated by forced convection. It's small and heats up slightly more slowly, but it's more evenly colored. Moreover, the stainless steel material is corrosion-resistant and has a long life. In addition to the blackening treatment, there are also blued stainless steel flanged pipes
Advantages: uniform coloring, long service life, small size
2. Quartz tubes are generally thicker than stainless steel tubes. The heating wire and the quartz surface are isolated from air. Except for hydrofluoric acid, quartz glass hardly reacts with other acids, so the corrosion resistance of quartz tubes is very strong. . Quartz tube is made of opal quartz glass, which can absorb almost all visible light and near-infrared light radiated from the heating wire, and convert it into far-infrared radiation, so it heats up fast and can best imitate "baked" Works well, but the coloring is relatively uneven. Quartz tubes have low cost, short lifespan, and are fragile, which affects the service life of the oven. Therefore, quartz tubes are generally not used in ovens above 30 liters.
Advantages: high heating efficiency, corrosion resistance
3. The heating element of the halogen tube is a tungsten wire, which is isolated by an inert gas. The light emitted is mainly strong visible light, and the heating speed is faster.
Advantages: high heating efficiency
