What are the materials of the heating tube of the built-in oven and which is better?

What are the materials of the heating tube of the built-in oven and which is better?

1. Quartz baking tube: alias halogen heating tube: a tungsten filament is placed in a quartz shell, and the luminous spectrum of the filament is in the range of 2400-3500K through the design of the filament and the shell.

Advantages: fast heating and good thermal stability.

Disadvantages: fragile, difficult to reprocess, and temperature control is not accurate enough.

Generally, old-fashioned small ovens use this kind of baking tube.

2. Metal heating tube: The metal heating tube is composed of metal tube, spiral resistance wire and crystalline magnesium oxide powder with good thermal conductivity and good insulation. At present, mainstream built-in oven brands generally use metal heating pipes, and the metal pipes used in the best metal heating pipes are 304 food grade stainless steel, which is also used by some brands including Depp built-in ovens of.

The choice of material is the main reason for the difference in the quality of the heating tube, including the material of the metal tube, the material of the resistance wire, and the material of the insulating filler. In addition to the choice of material, the filling density and uniformity of the insulating filler also determine the quality of the baking tube.