Can a customized 1700 degree box type muffle furnace be used for sintering?

The customized 1700 ℃ box type muffle furnace can be fully used for sintering processes, and its ultra-high temperature performance, precise temperature control, and flexible customization ability make it an ideal choice for sintering various materials. The following is a specific analysis:

1. Adaptability of sintering at high temperature of 1700 ℃
Covering the mainstream sintering temperature range
Ceramic materials: The sintering temperature of structural ceramics such as silicon nitride (Si ∝ N ₄) and silicon carbide (SiC) is usually between 1600-1800 ℃, and a furnace temperature of 1700 ℃ can fully meet the requirements.
Metal ceramic composite materials, such as TiC Ni based composite materials, require dense bonding between metal and ceramic at 1700 ℃.
Ultra high temperature ceramics (UHTCs): Carbides/nitrides of hafnium and zirconium (such as HfC, ZrB ₂) need to be sintered at temperatures above 1700 ℃, and customized furnaces can be extended to higher temperatures (such as 1800 ℃).
Replace multiple medium and low temperature equipment
A single device can cover the temperature range of 1600-1700 ℃, avoiding the need to purchase multiple medium low temperature furnaces (such as 1200 ℃ and 1500 ℃ furnaces) due to temperature segmentation, reducing equipment costs and space occupation.

2. Key requirements and customized solutions for sintering process
Temperature control accuracy
PID intelligent regulation: The temperature control accuracy reaches ± 1 ℃, supporting more than 50 programmable curves (such as step heating, constant temperature maintenance, gradient cooling), ensuring that temperature fluctuations during sintering do not affect material properties.
Three dimensional temperature field monitoring: Real time monitoring of furnace temperature through embedded thermocouple array, with temperature field uniformity improved to ± 1.2 ℃ (at 1200 ℃), avoiding local overheating or undercooking.
Furnace structure and materials
Special shaped furnace design: For long axis and thin-walled workpieces, customize “deep narrow” or “gradient temperature field” furnaces to reduce sintering deformation. For example, the sintering of aviation blade coatings requires customized deep and narrow furnaces (such as 600 × 200 × 200mm) to adapt to the shape of the workpiece.
Gradient composite structure: using multiple layers of zirconia mullite insulation layer, the thermal shock resistance is improved, it can withstand more thermal cycles, and extend the furnace life.
Atmosphere and pressure control
Multi channel gas system: supports the introduction of inert gases (such as argon and nitrogen) or reducing gases (such as hydrogen) to prevent material oxidation at high temperatures. For example, the sintering of metal ceramic composite materials needs to be carried out under a hydrogen atmosphere.
Vacuum environment: Optional vacuum pump can be equipped to achieve a vacuum degree of ≤ 10 ⁻ ³ Pa, meeting the requirements of non oxidizing sintering (such as vacuum sintering of certain ceramic materials).
Pressure regulation: Integrated mechanical load superposition function (such as 0-50kN top rod loading device), suitable for hot pressing sintering experiments (such as densification of ultra-high temperature ceramics).

3. Typical sintering process case
Ceramic material sintering
Silicon nitride bearing ball sintering: Sintered at 1700 ℃ under atmosphere protection, customized furnace size (such as Φ 300mm × 400mm) to match batch production requirements, resulting in higher density and stronger hardness of the product.
Silicon carbide ceramic crucible sintering: Adopting gradient temperature field design, the center temperature of the furnace is 1700 ℃, and the edge temperature is 1650 ℃, to avoid cracking of the crucible due to excessive temperature difference.
Sintering of metal ceramic composite materials
TiC Ni based composite material: By introducing a hydrogen atmosphere at 1700 ℃ and customizing the temperature control curve (such as heating to 1700 ℃ for 2 hours, constant temperature for 4 hours, and cooling with the furnace), dense bonding between metal and ceramic is achieved, resulting in higher bending strength.
Sintering of Ultra High Temperature Ceramics (UHTCs)
HfC ZrB ₂ composite ceramics: By hot pressing sintering above 1700 ℃, customized mechanical load superposition function can synchronously apply pressure to prepare ceramic materials with higher density and temperature resistance up to 3000 ℃.