Customized 1700 degree box type muffle furnace powder metallurgy

Customized 1700 degree box type muffle furnace can meet the high-temperature sintering, annealing and other needs of powder metallurgy. Its core performance and customization advantages are as follows:

1. Core performance adapted to powder metallurgy requirements
Ultra high temperature capability
The furnace stability reaches 1700 ℃, and the continuous working temperature can reach 1600 ℃, meeting the sintering requirements of high-temperature alloys (such as nickel based and cobalt based alloys) and hard alloys (such as WC Co) in powder metallurgy. For example, nickel based alloys need to be solution treated at 1600-1700 ℃ to eliminate work hardening, while hard alloys need to be sintered and densified at 1400-1600 ℃.
Precise temperature control system
PID intelligent regulation: temperature control accuracy ± 1 ℃, supports multi-stage heating/cooling programs (such as step heating, constant temperature maintenance, gradient cooling), ensuring that the sintering process follows the preset process curve.
High precision sensors: equipped with B-type thermocouples or infrared thermometers to monitor the temperature inside the furnace in real time, avoiding material performance differences (such as grain coarsening and uneven density) caused by temperature fluctuations.
Uniform temperature field design
Multi zone heating control: Independently adjust the temperature in different areas of the furnace to reduce temperature gradients (temperature field uniformity ± 5 ℃ @ 1200 ℃) and avoid deformation of thin-walled or irregular parts due to excessive temperature differences.
High quality insulation material: The furnace is made of alumina fiber or mullite fiber, with low thermal conductivity to reduce heat loss and ensure stable temperature field.
High temperature resistant structural materials
Heating element: Silicon molybdenum rod resistant to high temperature (1700 ℃), anti-oxidation, with a lifespan of over 5000 hours, suitable for long-term high-temperature work.
Furnace inner wall: coated with high-temperature alumina coating to improve reflectivity and heating efficiency, and extend service life.

2. Customized solutions for powder metallurgy processes
Optimization of sintering process
Vacuum/atmosphere control: Optional vacuum pump (vacuum degree ≤ 10 ⁻ ³ Pa) or multi-channel gas system (argon, nitrogen, hydrogen) to prevent material oxidation. For example, titanium alloy sintering needs to be carried out under an argon atmosphere with an oxygen content of ≤ 10ppm.
Pressure regulation function: Integrated mechanical load superposition device (such as 0-50kN top rod loading device), suitable for hot isostatic pressing sintering (HIP), to improve material density.
Annealing process support
Graded cooling function: Control the cooling rate through the program (such as 10 ℃/min → 5 ℃/min → 2 ℃/min) to avoid rapid cooling causing material cracking or performance degradation. For example, ceramic materials need to be slowly cooled to room temperature after annealing to reduce residual stress.
Special shaped furnace design: For long axis and thin-walled workpieces (such as powder metallurgy gears and bearing rings), customize “deep narrow” or “gradient temperature field” furnaces to reduce annealing deformation.
Energy saving and safety design
Double layer shell structure: The outer water or air cooling system reduces the shell temperature (≤ 60 ℃) and improves operational safety.
Multiple protection functions: over temperature alarm, leakage protection, power off when opening the door (automatically cutting off the heating circuit when the furnace door is opened), ensuring the safety of personnel and equipment.

3. Typical application cases
Hard alloy sintering
By introducing hydrogen gas atmosphere at 1700 ℃ and utilizing customized mechanical load superposition function (loading pressure of 10MPa), WC Co hard alloy with higher bending strength was prepared, and the interfacial bonding strength was improved.
Solution treatment of high-temperature alloys
By introducing argon gas atmosphere at 1700 ℃ and customizing the temperature control curve (heating to 1700 ℃ for 2 hours, constant temperature for 2 hours, and air cooling with furnace cooling to 600 ℃), the work hardening of Inconel 718 alloy is eliminated and the elongation is improved.
Ceramic material annealing
Zirconia ceramics are vacuum annealed at 1700 ℃, and residual stresses are eliminated through graded cooling (10 ℃/min → 5 ℃/min), resulting in higher bending strength and improved toughness.