What are the temperature ranges of box type high-temperature heat treatment furnaces?

The temperature range division of the box type high-temperature heat treatment furnace is flexible, and different temperature ranges can be selected according to experimental needs and material characteristics. The common temperature range division and corresponding applications are as follows:

1. Low temperature range (from room temperature to 500 ℃)
Temperature range: from room temperature to 500 ℃, some devices can be extended to 800 ℃.
Application scenarios:
Material pretreatment: such as stress relief annealing of metal materials, drying and preheating of ceramic materials.
Low temperature sintering: Some ceramic materials are initially sintered at low temperatures to form a dense structure.
Chemical experiments: such as low-temperature activation of catalysts, thermal decomposition of organic compounds, etc.
Heating element: usually using resistance wire (such as iron chromium aluminum, nickel chromium alloy), with low cost and long service life.

2. Medium temperature range (500 ℃ to 1200 ℃)
Temperature range: 500 ℃ to 1200 ℃, some equipment can reach 1350 ℃.
Application scenarios:
Metal heat treatment: such as quenching, tempering, and annealing of steel to improve the mechanical properties of materials.
Ceramic sintering: The sintering of ordinary ceramic materials to form high-strength and high hardness products.
Catalyst preparation: By controlling the temperature and adjusting the distribution of active components in the catalyst.
Heating element: Silicon carbide rod (SiC) is the mainstream choice, with the characteristics of good high-temperature stability and long service life.

3. High temperature range (1200 ℃ to 1700 ℃)
Temperature range: 1200 ℃ to 1700 ℃, some equipment can reach 1800 ℃.
Application scenarios:
High performance ceramic sintering: The sintering of advanced ceramics such as alumina and silicon nitride requires complete densification at high temperatures.
Melting of metal materials, such as titanium alloys and nickel based alloys, requires maintaining material purity at high temperatures.
High temperature synthesis experiments, such as the synthesis of nanomaterials and composite materials, require precise control of high-temperature reaction conditions.
Heating element: Silicon molybdenum rod (MoSi ₂) is the core element in the high-temperature range, with excellent characteristics of high temperature resistance and oxidation resistance.

4. Ultra high temperature range (above 1700 ℃)
Temperature range: 1700 ℃ to 2000 ℃, or even higher.
Application scenarios:
Research on special materials, such as high-temperature superconducting materials, nuclear materials, and the preparation of high-temperature alloys for aerospace applications.
Extreme condition experiment: Simulate the performance changes of materials in extreme high temperature environments, providing data support for engineering applications.
Heating element: High temperature resistant materials such as molybdenum wire and graphite rod, which require special furnace design (such as water-cooled jacket) to extend their service life.

5. Flexibility in temperature range division
Equipment customization: Some manufacturers provide customized services, which can adjust the temperature range, furnace size, and heating method according to user needs.
Multi temperature zone control: High end equipment supports independent control of multiple temperature zones, which can meet the experimental needs of different temperature ranges in the same furnace.
Atmosphere regulation function: By introducing inert gases (such as nitrogen and argon) or active gases (such as oxygen and hydrogen), simulate different experimental environments and expand the application range of temperature ranges.