What is a box type resistance annealing furnace?

Box type resistance annealing furnace, also known as box type resistance furnace or high-temperature annealing furnace, is a device that uses resistance wires to convert electrical energy into thermal energy, thereby heating objects. It is widely used in laboratories, industrial and mining enterprises, scientific research institutions and other units, mainly for small-scale experiments, material sintering, annealing, ashing, tempering and other treatments. The following is a detailed explanation about the box type resistance annealing furnace:
Definition and Structure
Definition: A box type resistance annealing furnace converts electrical energy from resistance wires into thermal energy, achieving heating and annealing treatment of objects inside the furnace.
Structure: It mainly consists of furnace body, furnace chamber, heating element (resistance wire), temperature measuring element, and control instrument. The furnace body is usually made of cold-rolled steel plate, treated with surface spraying technology, and the furnace door adopts a full door structure with flexible opening and closing. Ceramic fiber materials are often used as internal materials in the furnace to provide good insulation and heating effects.
working principle
The working principle of the box type resistance annealing furnace mainly includes two processes: electrical energy conversion and thermal energy conduction:
Electric energy conversion: Resistance wires convert electrical energy into thermal energy by conveying current. When electrical energy passes through a resistance wire, heat is generated, causing the temperature of the resistance wire and its surrounding environment to rise.
Thermal energy conduction: The thermal energy in the furnace is transferred to the heated object through conduction, convection, and radiation. The furnace material has good thermal conductivity, which can effectively transfer thermal energy from the electric heating wire to the entire furnace, achieving uniform heating of objects.
Characteristics and advantages
High temperature control accuracy: using microcomputer program control, programmable multiple sets and segments of curves, fully automatic heating/cooling. Both temperature control accuracy and constant temperature accuracy can reach ± 1 ℃, meeting the high-precision heating requirements.
Easy to operate: Temperature control parameters and programs can be modified during operation, which is flexible, convenient, and easy to operate.
Energy saving and environmental protection: The furnace body design is reasonable, the insulation performance is good, and the energy loss is small. Meanwhile, modern box type resistance annealing furnaces often adopt intelligent control systems that can automatically adjust power according to heating needs, achieving energy conservation and consumption reduction.
Safe and reliable: Equipped with a reliable automatic protection system, such as over temperature alarm, power-off protection, etc., to ensure that the equipment can be shut down in a timely manner in case of abnormal situations, protecting the safety of equipment and personnel.
Application scope
The application range of box type resistance annealing furnace is wide, mainly including the following aspects:
Metal heat treatment: used for normalizing, quenching, annealing and other heat treatments of alloy steel products and various metal parts. Quenching, normalizing, annealing, quenching and tempering heating of workpieces such as carbon steel, alloy steel, high manganese steel, and high chromium steel.
Ceramic and glass manufacturing: used in the ceramic and glass industry for sintering ceramic products and heat treatment of glass materials.
Materials Science Research: Used in the laboratory for materials science research, such as thermal analysis and phase transition studies of materials.
Other fields: It can also be used for heat treatment of small parts, springs, molds, and high-temperature sintering processes.
In summary, the box type resistance annealing furnace, as an important heating and annealing equipment, plays an important role in multiple fields. With the continuous advancement of technology and the expansion of application fields, its development prospects will become even broader.