High temperature electric heating material-and non-gold electric heating material

High temperature electric heating material-and non-gold electric heating material

Non-metallic electric heating materials mainly include silicon carbide, lanthanum chromate, zirconium oxide, and molybdenum disilicide. Among them, MoSi2 has become a research hotspot in recent years due to its high melting point, excellent high-temperature oxidation resistance, excellent electrical and thermal conductivity and moderate density, and is considered as the most promising high-temperature structural material at present.

Performance characteristics of eddy current hot film heat exchanger:

①High efficiency and energy saving, the heat transfer coefficient of the heat exchanger is 6000～8000W/(m2·℃);
②Made of all stainless steel, long service life, up to 20a or more, free replacement of heat exchanger quality problems within ten years;
③Change laminar flow to turbulent flow, which improves heat exchange efficiency and reduces thermal resistance;
④ Fast heat exchange speed, high temperature resistance (400℃), high pressure resistance (2.5MPa);
⑤Compact structure, small floor space, light weight, convenient installation, saving civil construction investment;
⑥ Flexible design, complete specifications, strong practical pertinence, and save money;
⑦Wide application conditions, suitable for large pressure, temperature range and heat exchange of multiple media;
⑧Low maintenance cost, easy operation, long cleaning cycle, convenient cleaning;
⑨Adopt nano thermal film technology to significantly increase the heat transfer coefficient;
⑩ Wide application field, can be widely used in thermal power, factories and mines, petrochemical industry, urban central heating, food and medicine, energy electronics, machinery and light industry.

Electric heating element national standard

1. According to GB/T1.1-1993 and GB/T1.3199, the format of JB408885 was adjusted.

2. Delete the preferred values of the rated power, the exposed length of the lead rod and the unfolded length of the component specified in the original standard.

3. Modify the "specified value" of the highest surface load of the component to "recommended value".

4. The electrical strength requirement is equivalent to GB4706.192 to be modified, and the operating current of the electrical strength test equipment is specified as 5mA.

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