Heating Plate Classification
Electric plate currently has a shell, cast plate, tubular components and tubular components such as cast four types.
Shell-type heating plate
Shell-type electric plate is in the sheet metal stamping shell embedded spiral heating wire, spiral heating wire and metal shell filled with thermal conductivity and insulation filler. This metal shell type structure is simple, the price is cheap, but the board is easy to deform, the thermal efficiency after prolonged use of a decline, it is generally made of 800W below the low-power electric plate.
Casting plate heating plate
Casting plate hot plate structure and the shell-like heating plate, but the plate is a metal castings, so the strength of the board is not easy to deform, at present most of the domestic use of this structure. Tubular element type electric heating plate is formed by a metal tubular heating element bent into a plane spiral involute electric plate, the metal tubular heating element is a semicircular cross-section, the plate surface is flat, so that the cross-section of the hot plate and cooking There is a large heat transfer area between the bottom of the pan to increase thermal efficiency.
Tubular components cast plate electric plate
Tubular components Casting plate heating plate is a general metal tubular heating element bent into a ring of 1 to 5 ring shape, and then use silicon aluminum alloy or silicon copper alloy cast a complete piece of hot plate. Compared with the tubular element type electric plate, it has more effective heat transfer surface than the bottom of the pot. This kind of structure has strong mechanical strength, long service life and high thermal efficiency. It is especially suitable for the environment with vibrations such as ships and vehicles. At present, most of the domestic and foreign production of rice cookers adopt this kind of structure.
