What is a high-temperature box type resistance furnace?

High temperature box type resistance furnace is a commonly used high-temperature heating equipment, widely used in scientific research, production, and laboratory fields. The following is a detailed introduction to the high-temperature box type resistance furnace:

1. Definition and Classification
Definition: High temperature box type resistance furnace generates high temperature through resistance wire heating, and conducts heat radiation through the box to heat objects. Its shape is usually a rectangular box, and the internal space is used to place the object to be heated.
Classification: According to the rated temperature, high-temperature box type resistance furnaces are generally classified into different types such as 1200 degrees, 1400 degrees, 1600 degrees, 1700 degrees, and 1800 degrees.

2. Main Structure
Shell: Made of high temperature resistant materials, it can effectively isolate the external temperature and ensure the stability of the internal high-temperature working environment.
Inner chamber: made of high-temperature heat-resistant materials, such as high-temperature ceramics, to withstand high-temperature objects in the high-temperature environment inside the box.
Heating element: usually made of resistance wire, such as chromium aluminum resistance wire, copper nickel resistance wire, etc. The resistance wire heats itself by current, and electrical energy is converted into heat energy. To protect the resistance wire, a protective layer such as asbestos paper, fire-resistant fibers, graphite, etc. is usually added to its exterior.
Temperature control system: plays a role in regulating and maintaining temperature, ensuring the accuracy and stability of the heating process.

3. Working principle
The working principle of a high-temperature box type resistance furnace is to generate high temperature through the heating of resistance wires, and heat the object through thermal radiation conduction through the box. The workflow usually includes placing the object to be heated into the inner chamber, closing the furnace door tightly, connecting the power supply, and setting the temperature control system’s set value.

4. Characteristics and advantages
Fast heating speed: The heating rate can be adjusted to meet different heating needs.
Accurate temperature control: Advanced temperature control system is adopted to ensure the accuracy and stability of heating temperature.
High stability: The furnace materials and heating elements have high temperature resistance and durability, ensuring long-term stable operation of the equipment.
Widely applicable: Suitable for various fields such as scientific research, production, laboratory, etc., such as material sintering, glass product processing, chemical reactions, etc.

5. Precautions for use
Before use, the equipment should be inspected and preheated to ensure its normal operation.
The furnace temperature should not exceed the maximum furnace temperature, and should not be operated above the rated temperature for a long time.
During the heating process, attention should be paid to observing the operation of the equipment, and any abnormalities should be promptly dealt with.
After use, the device should be powered off and cleaned and maintained to extend its lifespan.

In short, the high-temperature box type resistance furnace is a powerful and widely used high-temperature heating equipment. By understanding its definition, structure, working principle, characteristics and advantages, as well as usage precautions, it is possible to better use and maintain the equipment to meet the heating needs of different fields.