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The range of box-type resistance furnaces used is still relatively wide. Let’s take a look at its features today:

1. The furnace door is designed to make the operation of opening the door safe and simple, and to ensure that the high-temperature hot air in the furnace does not leak out.

2. Microcomputer PID controller, easy to operate, reliable and safe.

3, corrosion-resistant and lightweight furnace to ensure durability.

4. The excellent door seal makes the heat loss small and increases the uniformity of the temperature in the furnace chamber of the box-type resistance furnace.

Safety function of box-type resistance furnace:

1. Just open the furnace door during operation, and the furnace door safety switch will automatically cut off the heating power to ensure the safety of the operator.

2. Various safety protection measures such as overcurrent, overvoltage and overheating are provided to ensure the safe use of electric furnaces.

3. Ceramic fiberboard is selected as the thermal insulation material, which has the characteristics of good thermal insulation effect and low surface temperature of the box shell. Furnace selection (users can choose according to their needs):

4. The refractory brick furnace is made of traditional refractory materials, which has the characteristics of wide application range, long life and high cost performance.

Precautions and maintenance of box-type resistance furnace:

1. When the electric furnace is used once or used again after a long period of inactivity, it must be oven dried. Oven temperature and time.

2. When using box-type resistance furnace electric furnace, the furnace temperature should not exceed the rated temperature, so as not to damage the heating element, and it is forbidden to directly pour various liquids and dissolved metals into the furnace to ensure the cleanliness of the furnace.

3. When connecting the power supply, the phase line and the center line cannot be reversed, otherwise it will affect the normal operation of the temperature controller and there will be a risk of electric shock.

4. The wire connecting the thermocouple to the temperature controller should use a compensation wire to eliminate the influence caused by the temperature change of the cold junction.

5. To ensure safe operation, both the electric furnace and the temperature controller housing must be reliably grounded.

6. It is forbidden to place combustibles next to the furnace.

7. There is no conductive dust, explosive gas or corrosive gas that can seriously damage metal and insulation around the box-type resistance furnace.

8. The box-type resistance furnace must always be watched during the use process to prevent the over-temperature from running out of control.