Stainless steel heating tube can be roughly divided into single hair heat pipe and double hair heat pipe. It uses stainless steel as the sheath, magnesium oxide rod as the core, magnesium oxide powder filler, and nickel chromium wire as the heating wire. It is an application A wide range of electric heating pipe products. How to choose the raw materials of stainless steel heating tube reasonably is the first condition to ensure the quality of stainless steel heating tube:

　　 A. Resistance wire: For example, there is a 200 watt heating wire with an electric heating cup, the diameter of the coil is 5 mm, the length is 400 mm, the diameter of the wire is 0.6 mm, the diameter becomes 10 mm, the length becomes 800 mm, and the diameter of the wire changes. It is 1.2 mm, and all the dimensions are double the size. At this time, check the hardware manual, calculate the resistance value according to the resistivity of different materials, and then calculate the final power according to the voltage.

　　 B. Sealing material: If no sealing material is used, water vapor enters the nozzle of the heating pipe, the insulation drops, and the tripping occurs. If it is still used, the nozzle is damaged and the heating pipe is scrapped, it is absolutely forbidden to leave the non-sealing heating pipe.

　　C, magnesium oxide powder: the filling is crystalline magnesium oxide powder, not silicon carbide. Refractory bricks used in electric stove plates have different uses and materials. Common ones include clay, aluminum oxide (aluminum silicate), and magnesium oxide. Play the role of insulation and uniform heat dissipation.

　　D, pipe material: temperature resistance, corrosion resistance. Generally, mold heating is 304, 302, 301, 202, and liquid heating is seamless 304. 840 can be replaced by 2520 in China, mainly because of the high nickel content and strong oxidation resistance. However, the domestic stainless steel market is very messy, generally The brands on the market are one level lower than the standard.

　　E, stainless steel material: a good stainless steel material can protect the normal operation of the heating tube, which is closely related to the life of the heating tube. Commonly used civil stainless steel materials are 201 stainless steel, 202 stainless steel 301 stainless steel, 304 stainless steel, and 316 stainless steel.

The scope of application of stainless steel heating tube: process water, superheated steam, molten salt, nitrogen (air) gas, water gas and other fluids that require heating; heating of hydrocarbons, including petroleum crude oil, heavy oil, fuel oil, heat transfer oil, Lubricating oil, paraffin, etc.; because the stainless steel electric heating tube adopts advanced explosion-proof structure, the equipment can be widely used in chemical, military, petroleum, natural gas, offshore platforms, ships, mining areas and other places that require explosion-proof.