Method of selecting raw materials for hot plate stainless steel heating tubes
Stainless steel heating pipe can be divided into single-head heating pipe and double-headed heating pipe, it is made of stainless steel sheath, magnesium oxide rod for the core to do magnesium oxide powder filler to nickel chrome wire for the heating wire, is an application More extensive electric tube products. How to choose a reasonable choice of stainless steel heating pipe raw materials, stainless steel heating pipe is to ensure the quality of the primary conditions:
A, resistance wire: For example, a 200-watt electric heating wire with an electric cup, 5 mm in diameter, 400 mm in length, 0.6 mm in diameter, 10 mm in diameter, 800 mm in diameter, For 1.2 mm, all the sizes are doubled, then check the hardware manual, according to the resistivity of different materials to calculate the resistance value, and then calculate the final power according to the voltage.
B, sealing materials: do not use sealing materials, water vapor into the heating pipe nozzle, insulation down, trip, such as also continue to use, nozzle damage, heat pipe scrapped, absolutely to prohibit non-sealed heating pipe factory.
C, magnesium oxide powder: filled with crystalline magnesia powder, not silicon carbide. Electric furnace with the use of refractory bricks, the use of different materials are also different, common clay, aluminum oxide (aluminum silicate), magnesium oxide and so on. Play insulation, the role of uniform heat.
D, pipe: temperature, corrosion resistance. General mold heating is 304,302,301,202, the liquid heating is seamless 304, 840 in the country can be replaced with 2520, mainly nickel-containing high, strong antioxidant, but now the domestic stainless steel market is chaotic, the general The grades on the market are lower than the standard.
E, stainless steel Material: good stainless steel material to protect the normal operation of the heating pipe, and the life of the heat pipe is closely related. Usually civilian stainless steel material is made of 201 stainless steel, 202 stainless steel 301 stainless steel, 304 stainless steel, 316 stainless steel.
Electric hot plate Scope of application: Process water, superheated steam, molten salt, nitrogen (air) gas, water gas and so on need to heat up the heating fluid heating; hydrocarbon heating, including oil crude oil, heavy oil, fuel oil, Oil, natural gas, offshore platforms, ships, mining and other areas need to be explosion-proof places.