High temperature box furnace – Encyclopedia

A high-temperature box furnace is a universal heating equipment, also known as a high-temperature box electric furnace or high-temperature muffle furnace. It uses silicon molybdenum rods or silicon carbon rods as heating elements and is a specialized equipment developed for sintering, melting, analyzing, and producing ceramics, metallurgy, electronics, glass, chemical industry, machinery, refractory materials, new material development, special materials, building materials, metals, non-metals, and other chemical and physical materials in laboratories of higher education institutions and research institutes, as well as industrial and mining enterprises.

A commonly used small high-temperature box furnace (click on the image to view product details)

1.The structural principle of a high-temperature box furnace:
① Furnace cavity structure: High temperature box furnaces are usually composed of a sturdy metal shell with a furnace cavity inside. The size and shape of the furnace cavity can be designed according to specific heating treatment requirements.
② Heating element: High temperature heating elements, such as resistance wires, electric heaters, etc., are installed in the furnace chamber to convert electrical energy into heat energy and provide a high-temperature environment.
③ Temperature control system: equipped with a stable temperature control system, including temperature sensors, controllers, and feedback mechanisms, to ensure precise control of the temperature inside the furnace chamber.
④ Insulation materials: Insulation materials such as ceramic fibers, refractory bricks, etc. are used on the inner wall of the furnace chamber to reduce energy loss and ensure the stability of the high-temperature environment.

2.The main application scenarios of high-temperature box furnaces are:
① Metal heat treatment: used for high-temperature heat treatment processes such as quenching, tempering, and annealing of metal materials to change the structure and properties of the metal.
② Ceramic sintering: a high-temperature sintering process suitable for ceramic materials to ensure the density and strength of ceramic products.
③ Laboratory research: In a laboratory environment, a high-temperature box furnace is used for studying various material properties, conducting laboratory experiments, and preparing samples.
④ Electronic component manufacturing: Used for the manufacturing of electronic components, such as resistors, capacitors, etc., to achieve specific material processing and modification in high-temperature environments.
⑤ Chemical reactions: In some chemical reactions that require high temperature conditions, a high-temperature box furnace can provide a constant and controllable high-temperature environment.

High temperature box furnace(click on the image to view product details)

3. Advantages and characteristics of high-temperature box furnace:
① High temperature stability: High temperature box furnaces can provide a high temperature stable environment, suitable for materials that require high-temperature heating treatment.
② Accurate temperature control: A stable temperature control system ensures precise control of the temperature inside the furnace chamber, meeting the requirements of various high-temperature treatments.
③ Good sealing performance: The furnace chamber has good sealing performance and can provide an oxygen free or low oxygen environment, suitable for some high-temperature processes that require high atmosphere requirements.
④ Customized design: The size and shape of the furnace chamber can be customized according to specific process requirements to adapt to different shapes and sizes of workpieces.
⑤ Multifunctionality: High temperature box furnaces can be used in various processes and are suitable for high-temperature heating treatment of different materials.

4.Precautions during the use of high-temperature box furnaces:
① It is necessary to follow the manufacturer’s instructions for correct operation and regular maintenance to ensure the normal operation of the equipment.
② Attention should be paid to safety during high-temperature operation. Users should be familiar with the safety regulations of the furnace and take necessary safety measures.
③ It is prohibited to inject liquid and molten metal into the furnace.
④ After long-term use, it should be dried at 300 ℃ for 4 hours before reuse.
⑤ Any changes made by the operator to the processing must be confirmed before they can take effect, in order to avoid misoperation.
⑥ The furnace temperature control methods include: installing electric heating elements on the furnace door, arranging power (resistance wires) reasonably, setting up fans to force gas convection in the furnace, improving the paint color of the furnace shell, etc.

Industrial grade large high-temperature box furnace (click on the image to view product details)

5. Summary:
High temperature box furnace is a key heat treatment equipment widely used in various industrial fields, meeting the requirements of different materials for high temperature treatment. During use, it is necessary to pay attention to safety and operating standards to ensure the normal operation of the equipment and the accuracy of experimental results. Click to learn more about high-temperature box furnaces, or click to consult online customer service to learn more about products!