Heating plate (cast copper) heating precautions
1. When heating fusible metal or solid nitrate, alkali, leaching, paraffin, etc., the voltage should be reduced first, and then the medium should be cooled to the rated voltage.
2, when heating the nitrate salt should consider the Anqi measures to prevent explosion accidents.
3. The cast copper heating plate allows the task under the following conditions: A. The relative dryness of the atmosphere is not 95%, and there is no explosive atmosphere. B. The task voltage should not be 1.1 times the rated value, and the middle case should be effectively connected to the sky. C. The edge resistance is ≥1MΩ. Dielectric strength: 2KV/1min.
4. When heating the atmosphere, the components should be evenly crossed, so that the components have excellent heat dissipation conditions, so that the flowing atmosphere can be heated.
5. The electric heating element should be positioned and flowed. The effective heating zone must be partially immersed in liquid or metal solids and emptied. When it is found that there is scale or carbon deposit in the pipe body, it should be cleaned and reused in time to avoid the heat dissipation and prolong the service life.
6, cast copper heating plate should be stored in the boring place, if the durability of the end of the edge of the resistance is less than 1MΩ, can be boring in the oven dominated by 200 ° C, or reduce the voltage heating, until the recovery of the edge resistance.
7. The wiring part should be placed in the insulation layer to avoid contact with corrosive, explosive media and moisture; the lead wire should be able to withstand the temperature of the wiring part and heat the back load, and the wiring screw should be protected from excessive force. .
8. The magnesium oxide powder at the outlet end of the electric heating tubular is sheltered from the infiltration of pollutants and moisture to prevent the explosion of electric leakage accidents. Lower temperature line, thermocouple, single metal thermometer, temperature control instrument.