1400 degree sintering furnace, commonly used in the heat treatment industry for powder sintering, metal ceramics and other materials, has many advantages. So, what aspects should we pay attention to before choosing a 1400 degree atmosphere sintering furnace? Let's take a detailed look below!

Small scale experimental 1400 degree atmosphere sintering furnace (click on the picture to view product details)

1. Temperature control capability
Temperature control accuracy: Precision ceramic manufacturing requires temperature control accuracy within ± 1 ℃. Equipment equipped with PID intelligent temperature control system and B-type thermocouple should be selected to ensure the accuracy of temperature control.
Heating rate: When sintering above 1400 ℃, it is recommended to have a heating rate of ≤ 5 ℃/min to avoid sample cracking or heating element fracture caused by thermal shock.
Temperature uniformity: By designing the layout of heating elements and furnace structure reasonably, as well as using gas circulation devices, the temperature distribution inside the furnace is uniform, and the temperature deviation can be controlled within the range of ± 5 ℃ to ± 10 ℃.

2. Furnace structure and materials
Furnace structure: It usually adopts a double-layer shell structure with a thermal insulation layer in the middle to reduce heat loss and lower the surface temperature of the shell. The shell is generally made of stainless steel or carbon steel, and the surface is treated with anti-corrosion.
Furnace materials: ceramic fiber materials with high temperature resistance and good insulation properties, such as alumina fibers, mullite polycrystalline fibers, etc., are often selected. These materials can withstand high temperatures of 1400 ℃, effectively maintaining stable temperature inside the furnace while reducing the weight of the furnace body.

3. Heating element selection
Heating element type: Depending on different temperature requirements and furnace size, silicon carbon rods or silicon molybdenum rods are commonly used as heating elements. Silicon carbon rods have good heating performance and oxidation resistance at high temperatures around 1400 ℃, while silicon molybdenum rods are more suitable for higher temperature ranges, but their prices are relatively high.

4. Sealing system performance
Sealing structure: The furnace door, observation window and other parts are sealed with high-temperature silicone rubber or metal sealing structure to ensure the airtightness of the furnace body, prevent atmosphere leakage and air from entering the furnace, and affect the sintering effect.
Vacuum performance: It has good vacuum performance, with a maximum vacuum degree of better than 6 × 10 ⁻ ² Pa, which can effectively remove air and impurities in the furnace, avoid adverse reactions such as oxidation and nitridation of materials during sintering, and improve the purity and performance of composite materials.

5. Atmosphere control function
Atmosphere type support: Supports single or mixed gas environments such as nitrogen, argon, hydrogen, oxygen, etc., to meet the processing needs of material reduction, oxidation, vulcanization, etc.
Gas delivery system: equipped with gas pipelines, valves, flow meters, pressure sensors and other components, used to control the type, flow rate and pressure of gas entering the furnace.

6. Security performance guarantee
Safety protection device: equipped with various safety protection devices such as over temperature alarm, overcurrent protection, gas leakage detection, vacuum damage protection, etc. When the temperature inside the furnace exceeds the set safe value, the current is abnormal, gas leaks, or the vacuum system malfunctions, the equipment will automatically alarm and take corresponding protective measures, such as cutting off the power supply, stopping gas supply, etc., to ensure the safety of operators and equipment.

7. Equipment customization
Customized design: Customized design and manufacturing can be carried out according to the special needs of customers, such as adjusting furnace size, heating element layout, atmosphere control system, etc., to meet the sintering requirements of different materials.

8. After sales service
After sales service content: Select manufacturers that provide comprehensive after-sales service, including equipment installation and commissioning, operation training, maintenance, and supply of vulnerable parts. Ensure that the equipment receives timely technical support and maintenance services during use.

Middle class 1400 degree box type atmosphere sintering furnace (click on the picture to view product details)

In general, when choosing a 1400 degree atmosphere sintering furnace, it is important to pay attention to the above aspects. Before selecting, you can communicate the parameters with relevant technical personnel in order to customize an atmosphere sintering furnace that is more suitable for your production or experimental needs!Click to learn more 1400C Atmosphere furnaces! Or click on online customer service to learn more about product information!