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Home > Products > Muffle Furnace > Atmosphere Furnace > 1500-1700°C

model:PT-A1900-80LZ

1900°C graphite atmosphere furnace

Application

Detailed Parameters Of The Product

Equipment introduction:

I. Furnace structure and materials

1. Graphite furnace chamber
The graphite furnace is the core part of the atmosphere furnace. Graphite has excellent high temperature resistance and can withstand extremely high temperatures. In many cases, it can work stably in high temperature environments above 2000℃. Its good thermal conductivity allows heat to be transferred quickly and evenly in the furnace, which is conducive to ensuring the uniformity of the temperature in the furnace and reducing the problem of uneven material processing caused by temperature differences. In addition, the chemical properties of graphite are relatively stable. In some specific atmospheres, such as inert atmospheres or certain reducing atmospheres, it can maintain good chemical stability and reduce chemical reactions with the gas in the furnace or the treated materials.

2. Furnace design
The internal structure of the furnace is carefully designed to meet the needs of different treatment processes. In terms of space design, we need to consider not only the convenience of placing materials, but also the flow path of the gas to ensure that the atmosphere can fully contact the treated materials and ensure the consistency of the atmosphere on the material treatment effect.

II. High temperature performance

1.High temperature generation and maintenance
The graphite furnace high temperature atmosphere furnace achieves high temperature generation and maintenance through an advanced heating system. The heating elements are made of high temperature resistant materials and are reasonably distributed around the furnace, cooperating with the graphite furnace to achieve efficient heat transfer. By precisely controlling the heating power, the temperature in the furnace can be quickly raised to the set high temperature value, and can be stably maintained within the required temperature range during the treatment process, ensuring that the material is processed in a stable high temperature environment.

2.Temperature uniformity
Maintaining excellent temperature uniformity in a high temperature environment is one of the important features of the graphite furnace high temperature atmosphere furnace. This is due to the high thermal conductivity of graphite and the optimized design of the heating system. The temperature uniformity can reach a higher standard

3. Atmosphere control
Atmosphere type and control purpose
The atmosphere furnace can accurately control the atmosphere in the furnace and can adapt to a variety of atmosphere types, including inert atmosphere (such as argon, nitrogen, etc.), reducing atmosphere (such as a mixed atmosphere of hydrogen and inert gas, etc.) and some special process atmospheres.

4.Atmosphere control system
Equipped with a complete atmosphere control system, including a gas supply source, a gas flow controller, a pressure sensor and a gas purification device. The gas supply source provides the required various gases, and the gas flow controller accurately adjusts the gas flow to meet the requirements of different processes for atmosphere concentration. The pressure sensor monitors the pressure in the furnace in real time to ensure that the atmosphere pressure is stable within a safe and appropriate range. The gas purification device purifies the gas entering the furnace to remove impurities such as moisture and oxygen, further improve the purity and quality of the atmosphere, and ensure that the material processing process is not disturbed by impurity gases.

IV. Application Fields

1.Material Science and Engineering
It is widely used in the field of material science, such as sintering of high-temperature ceramic materials (such as silicon nitride, silicon carbide, etc.). During the sintering process, by precisely controlling the temperature and atmosphere, ceramic products with high strength, high hardness and excellent high temperature resistance can be obtained. For the smelting and heat treatment of metal materials, especially some high-melting-point metals (such as tungsten, molybdenum, etc.), the graphite furnace high-temperature atmosphere furnace can provide a suitable high temperature and protective atmosphere environment to improve the purity and performance of metal materials. In addition, it also plays an important role in the preparation process of new carbon materials (such as graphene, carbon nanotubes, etc.). By creating a specific atmosphere and high temperature conditions, the growth and structure of carbon materials can be controlled.

2.Electronic Industry
In the electronics industry, it is often used in the preparation and processing of semiconductor materials. For example, in the epitaxial growth process of silicon wafers, high temperature and a specific atmosphere are required. The graphite hearth high temperature atmosphere furnace can meet these requirements and ensure the quality and performance of the epitaxial layer of silicon wafers. For the sintering and processing of some electronic ceramic materials (such as piezoelectric ceramics, dielectric ceramics, etc.), precise temperature and atmosphere control can also be achieved through this furnace to improve the performance and reliability of electronic components.

3.Chemical Industry
In the chemical industry, it can be used for the preparation and activation of catalysts. Many catalysts need to be treated at high temperature and a specific atmosphere to improve their activity and selectivity. The graphite hearth high temperature atmosphere furnace provides ideal conditions for the preparation of catalysts. By controlling the atmosphere and temperature, the surface structure and chemical composition of the catalyst can be adjusted to optimize its catalytic performance. In addition, in the research and production of some high-temperature chemical reactions, it can also be used as a reaction device to provide a stable high temperature and specific atmosphere environment for chemical reactions.

Technical Parameters：

Model	PT-A1900-80LZ
Shell structure	Double-layer air-cooled structure, built-in heat dissipation fan to ensure that the shell surface is not hot
Surface treatment	Made of high-strength carbon steel, pickled and phosphated to remove rust, then electrostatically sprayed, beautiful and elegant.
Chamber size	400400500mm（Length, width and depth）
Working temperature	No more than 1800℃
Constant temperature accuracy	±1℃
Chamber material	High-quality graphite felt
Temperature control mode	Intelligent multi-stage program temperature control, phase-shift trigger, thyristor control, the instrument has PID self-tuning function. The touch screen can store multiple processes, and the sintering data can be recorded and exported in EXCEL format. A communication interface is reserved.
Heating rate	0-10℃/min adjustable
Alarm	With over-temperature alarm and thermocouple break alarm function
Heating element	High-quality graphite
Number of temperature zones	Single temperature zone
Thermocouple	Tungsten-rhenium
Furnace door opening method	Side opening
Inlet and outlet	one inlet, one outlet, one vacuum pump exhaust port
Atmosphere available	Inert atmosphere to slightly positive pressure (less than or equal to 0.02MPA). Equipped with mechanical safety pressure relief valve, automatic pressure relief in case of overpressure. Three float flow meters can be switched on and off by PLC.
Vacuum degree	Mechanical pressure vacuum gauge can reach -0.1MPA
Vacuum pump	High-speed mechanical pump can quickly replace the gas in the furnace
Working voltage	380V 50HZ
Maximum power	50 KW subject to actual needs

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