Relic Crystallization Atmosphere Furnace

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Relic Crystallization Atmosphere FurnaceThe furnace is made of vacuum formed alumina ceramic fiber material, which heats up quickly, maintains good insulation, and has a temperature field uniformity of ± 5 ℃. It is equipped with an intelligent PID temperature control instrument that can be programmed with 30 segments and has temperature compensation and correction functions with an accuracy of ± 1 ℃. Mechanical pumps, Roots pumps and other vacuum acquisition equipment are selected to obtain different degrees of vacuum. A float flowmeter is also selected to control the flow rate of the protective atmosphere.

Relic Crystallization Atmosphere FurnaceClassification Description:

1. Temperature selection for use

Usually divided into three temperatures, 1200 ℃, 1400 ℃, and 1700 ℃.

When the actual operating temperature is below 1200 ℃, a 1200 ℃ vacuum furnace product can be selected. The vacuum furnace at this temperature uses HRE high-temperature alloy resistance wire as the heating element; Generally, this type of product is suitable for vacuum annealing of metal and carbon materials.

When the actual operating temperature is higher than 1200 ℃ and lower than 1400 ℃, a 1400 ℃ vacuum furnace product can be selected. The vacuum furnace at this temperature uses SIC silicon carbon rods as heating elements; Generally, this type of product is suitable for annealing, aging of non-ferrous metals, and vacuum sintering of non-metallic ceramic materials.

When the actual operating temperature is higher than 1400 ℃ and lower than 1700 ℃, a 1700 ℃ vacuum furnace product can be selected. The vacuum furnace at this temperature uses MoSi2 silicon molybdenum rods as heating elements; Generally, this type of product is suitable for heat treatment of new materials such as composite materials and nanomaterials.

The continuous operating temperature of the vacuum furnace should be 100 ℃ lower than the rated design temperature, and correct use can effectively extend the service life of the vacuum furnace.

2. Selection of pneumatic system

The vacuum furnace has the function of passing inert gas and is designed with inlet and outlet ports to provide atmosphere protection for samples during high temperature stages.

Gas flow control can choose one or multiple float flow meters to adjust the gas flow rate.

The gas source can be selected from gas cylinders or pipelines for centralized gas supply (the gas source is usually an accessory provided by the user).

3. Selection of furnace size

Select the appropriate furnace size based on the volume of the sample, and it is recommended that the maximum loading size of the sample be at least 100mm smaller than the furnace size, which is beneficial for sufficient heat exchange of the sample.

The furnace volume can be selected from 3-1000L or customized according to actual requirements.

4. Selection of Vacuum System

The vacuum furnace tank has a flange type sealing structure, and the furnace door has a sealing ring and a furnace door locking device. It is designed with an independent vacuum suction port, which can work under vacuum.

The vacuum system uses trapezoidal O-rings and wear-resistant silicone material to ensure reliable sealing and minimal vacuum leakage.

The mechanical pressure gauge can display the pressure inside the furnace, and can be optionally equipped with a digital composite vacuum gauge to display the vacuum degree.

Equipped with different vacuum pumps, different vacuum levels can be obtained, and the price will vary greatly depending on the vacuum level. Generally, it can be divided into molecular pumps, diffusion pumps, Roots pumps, and mechanical pumps; Mechanical pumps can achieve a vacuum degree below 500pa; Roots pump combined with mechanical pump can achieve a vacuum degree of less than 50pa, and the vacuum degree of diffusion pump unit can reach 6x10-2pa.