Operation methods and precautions of ceramic electric heating plate

(1) the purpose of electric heating plate The electric heating plate is a device that uses the heat generated by the thermal effect of electric current to raise the temperature of substances Many electric heating plates are equipped with rotating magnets to rotate the stirrer so as to make the solution evenly stirred Therefore, it is also called electromagnetic heating stirrer The surface of electric heating plate is usually ceramic plate, It is suitable for heating glassware When heating, it can also be stirred by magnetic stirrer to speed up the reaction (2) operation method 1 Put the object to be heated on the plate surface first when using the electric heating plate 2 Adjust the temperature adjusting button and the mixing rate adjusting button to zero at the same time 3 Turn on the power switch 4 Turn the temperature adjusting button to low temperature first, then depending on the required temperature, Slowly rise That is, from low, moderate to high Or from 1,2 .. slowly increase 5 Rotate the mixing speed adjusting knob 6 Cut off the temperature adjusting knob, the mixing speed adjusting knob and the power switch after use (3) precautions 1 The surface of the electric heating plate is ceramic plate, and there is no obvious change in the appearance when heating, so when taking it, you should first approach the plate surface with your hands to find out whether it is warm, If there is a warm state, it should be handled carefully 2 When the electric heating plate is in use, if chemicals are splashed on the plate surface, it should be cleaned immediately Otherwise, it is very difficult to remove the heated substances after carbonization, which will hinder the uniformity of heating 3 Generally, only the flat bottom container can be heated by the electric heating plate 4 The magnetic mixer is a columnar magnet covered with Teflon (PTFE) 5 After the power is turned off, the plate surface is still very hot, Care should be taken to avoid scalding