As a commonly used heat treatment sintering and annealing equipment in the metal and powder heat treatment industry, the 1200 ℃ high-temperature box atmosphere furnace has many advantages. However, what aspects should we pay attention to when choosing? Let's take a look below!

Small 1200 ℃ high-temperature box type atmosphere furnace (click on the picture to view product details)

1. Temperature control accuracy and stability
Temperature control range and accuracy:
Ensure that the maximum temperature of the equipment can reach 1200 ℃ and has a temperature control accuracy of ± 1 ℃~± 3 ℃, meeting the requirements of high-precision experiments.
Priority should be given to PID intelligent temperature control system, which supports multi-stage program heating and adapts to complex process curves.

Temperature uniformity:
The temperature uniformity inside the furnace should be ≤ ± 5 ℃, achieved through independent temperature control in multiple zones or optimized thermal field design.
Verify the temperature uniformity test report provided by the manufacturer to ensure the authenticity and reliability of the data.

2. Atmosphere control ability
Atmosphere type and purity:
Support inert gases (N ₂ Ar）、 The introduction of reducing gases (H ₂, CO) and oxidizing gases (O ₂) meets the processing needs of different materials.
Equipped with high-precision gas flow meters and mass flow controllers (MFCs) to ensure stable atmosphere concentration.

Sealing and safety:
Adopting double-layer water-cooled flange sealing or vacuum sealing structure, the air leakage rate is ≤ 1 × 10 ⁻⁸ Pa · m ³/s.
Integrated hydrogen concentration monitoring and alarm system to prevent explosion risks.

3. Furnace structure and material
Furnace material:
High purity alumina fiber or mullite fiber modules are preferred, with a temperature resistance of ≥ 1300 ℃, excellent insulation performance, and light weight.
Avoid using traditional heavy refractory bricks to reduce thermal inertia and lower energy consumption.

Furnace structure:
Double layered shell structure, inner layer made of stainless steel, outer layer made of carbon steel sprayed with plastic, and filled with insulation material in the middle.
Equipped with forced air or water cooling system to ensure that the surface temperature of the furnace shell is ≤ 60 ℃.

4. Heating element and heating rate
Heating element type:
FeCrAl resistance wire is recommended for temperatures below 1200 ℃, as it has low cost and fast heating.
If frequent high-temperature operation (≥ 1200 ℃) is required, silicon molybdenum rod (MoSi ₂) can be selected, but attention should be paid to low-temperature brittleness.

Heating rate:
The maximum heating rate should be ≥ 10 ℃/min to meet the requirements of rapid sintering.
Verify the temperature rise curve data provided by the manufacturer to ensure that the equipment can maintain stable temperature rise in the high temperature range.

5. Safety and environmental performance
Security protection function:
Equipped with over temperature alarm, break protection, leakage protection, and overcurrent protection devices.
The furnace door safety interlock device prevents danger caused by misoperation.

Environmental Protection and Energy Conservation:
Furnace design optimization reduces heat loss and energy consumption by more than 30% compared to traditional electric furnaces.
Exhaust gas treatment interface, easy to connect to washing tower or activated carbon adsorption device.

6. Brand and after-sales service
Brand selection:
Priority should be given to brands with over 10 years of experience in high-temperature furnace research and development.
View user reviews and case studies, with a focus on device stability and after-sales service response speed.

After-sale service:
The manufacturer provides on-site installation and debugging, operation training, and lifelong technical support.
Adequate supply of spare parts, maintenance response time ≤ 24 hours.

Large size 1200 ℃ high-temperature box atmosphere furnace (click on the picture to view product details)

In general, when choosing a high-temperature box type atmosphere furnace with a temperature of 1200 ℃, attention should be paid to the above aspects. Before choosing, you can communicate with relevant technical personnel about the parameters you want, so as to customize an atmosphere furnace that is more suitable for your experimental or production needs!Click to learn more Atmosphere Furnaces! Or click on online customer service to learn more about product information!