Resistance furnace is an industrial furnace that uses electric current to heat the electric heating element or heating medium in the furnace, thereby heating the workpiece or material. It is a heating furnace that uses electric current to generate heat energy through a resistive material. So, what should be paid attention to during use? Let's take a look at it with Xiaowo.

1.The refractory material of the new furnace contains moisture, and in order to make the heating element generate an oxide layer, before starting to use, bake at low temperature for several hours and gradually heat up to 900 °C, and keep it for more than 5 hours to prevent the furnace from breaking due to a sharp change in temperature after moisture.

2. When the resistance furnace is heated, the furnace jacket will also become hot, and the furnace should be kept away from flammable materials and kept outside the furnace easy to dissipate heat.

3. The working life of the heating element depends on the oxide layer on its surface, destroying the oxide layer will shorten the life of the heating element, and each shutdown will damage the oxide layer, so downtime should be avoided after start-up.

4. The furnace temperature shall not exceed the high temperature during use, so as not to burn the electric heating element, and it is forbidden to fill the furnace with various liquids and molten metals.

5. When doing the ashing test, the sample should be fully carbonized on the electric furnace before being put into the ashing furnace to prevent the accumulation of carbon from damaging the heating element.

6. After several cycles of heating, cracks may appear in the insulation material of the furnace, which are caused by thermal expansion and have no effect on the quality of the furnace.

7. The resistance furnace is an experimental supply, which shall not be transferred to other uses, and the sample shall be stored in a clean crucible and shall not pollute the furnace.

8. When using the resistance furnace, take care of it frequently to prevent accidents caused by self-control failure, and do not use the resistance furnace when there is no one on duty at night.

9. After the resistance furnace is used, the power supply should be cut off to cool it down naturally. The furnace door should not be opened immediately, so as not to suddenly be cold and broken by the furnace, such as urgent use, you can first open a small crack, let its cooling accelerate, and only when the temperature drops below 200 °C, can the furnace door be opened