1200 degree box-type integrated high temperature electric furnace for sintering

As materials science demands increasingly extreme preparation environments, 1200°C box-type integrated high-temperature electric furnaces are becoming core equipment for both laboratories and industrial production. Their unique double-layered alumina fiber furnace design not only achieves a rapid heating rate of 20°C/min, but also controls temperature fluctuations to within ±1°C via a PID intelligent temperature control system. This precision provides revolutionary experimental conditions for the sintering of new ceramics and specialty alloys.

In practical applications, this equipment demonstrates three groundbreaking advantages: First, its modular, integrated structure integrates an atmosphere control system, allowing users to switch between multiple modes-vacuum, nitrogen, and argon-using a single 7-inch touchscreen. Second, when using a gradient sintering process, 16 built-in memory programs automatically execute multiple temperature control curves, eliminating the pain point of traditional equipment requiring manual oversight. Even more noteworthy is its innovative thermal field distribution technology, which optimizes the heating element layout through 3D simulation to achieve an effective uniform temperature zone covering over 85% of the furnace volume, significantly improving sintering uniformity.

The 1200°C box-type integrated high-temperature electric furnace is commonly used in processes such as sintering. The following is a brief introduction:

Operating Principle: A resistance wire is typically used as the heating element. Current passing through the resistance wire generates heat, raising the temperature inside the furnace chamber, thereby heating and sintering the sample. A K-type thermocouple is used to detect temperature, and a PID automatic temperature control system precisely controls temperature changes according to a pre-set program.

Structural Features:

Furnace Chamber Material: High-purity alumina fiber is often used to minimize energy loss. Some furnace chambers are also coated with imported high-temperature alumina to improve heating efficiency and service life.

Heating Element: Typically, a molybdenum-doped iron-chromium aluminum alloy resistance wire is used, offering low pollution and corrosion resistance.

Furnace Structure: A double-shell structure is often used, with an air-cooling circulation system between the two layers to effectively reduce the outer shell temperature while enabling rapid temperature increases and decreases.

Furnace Door Design: The furnace door typically opens 180 degrees to the side and can rotate 360 ​​degrees to prevent burns on the inner wall of the door during high-temperature material removal. The door lock is located underneath the door and uses a stainless steel spring lock for an effective seal.

Performance Parameters:

Temperature Range: Maximum operating temperature up to 1200°C, with a continuous operating temperature generally at 1100°C.

Temperature Control Accuracy: Temperature control accuracy is typically ±1°C.

Heating Rate: A heating rate of no more than 10°C/min is recommended to improve equipment life. Some furnaces offer a faster heating rate of up to 30°C/min.

Power Supply Voltage: Typically AC220V/50Hz. Rated power varies depending on furnace size and model, such as 2.5kW, 4.5kW, and 6.5kW.

Control System: Equipped with intelligent programmable temperature control, such as 30 or 50 programmable steps, it can meet diverse heating, holding, and cooling requirements. Some furnaces also offer optional computer temperature control software for controlling the heating curve and exporting data.

Applications: Widely used in universities, research institutes, industrial and mining enterprises, and for high-temperature sintering, metal annealing, and quality inspection, such as sintering ceramics and heat treating metals.

This equipment has already achieved landmark results at Tsinghua University's New Ceramics Laboratory. Leveraging its precise oxygen partial pressure control, the research team successfully produced transparent alumina ceramics with a grain boundary purity of 99.998%, laying the foundation for the domestic production of high-end optical devices. In the future, with the introduction of artificial intelligence algorithms, this type of equipment may enable autonomous optimization of sintering processes, ushering in the intelligent era of material preparation under extreme conditions.