1600 ° C and 1700 ° C high-temperature muffle furnace resistance furnaceManufacturers should judge the quality of a muffle furnace based on the material and performance of the inner liner. The better the inner liner material, insulation performance, heating rate, and accuracy, followed by the design and material of the appearance. A good muffle furnace, such as a ceramic fiber muffle furnace, is good. It is light in size, fast in heating rate, energy-saving and environmentally friendly. The inner liner and furnace wire are both imported materials, but the price is similar to domestic ones. Currently, they are produced according to regional standards and can be referenced through promised quality assurance, after-sales service, and other aspects.

1600 ° C and 1700 ° C high-temperature muffle furnace resistance furnacemanufacturerOur high-temperature box type resistance furnace is a periodic operation type, used for element analysis and determination in laboratories, industrial and mining enterprises, and scientific research units, as well as for quenching and annealing heat treatment of general small steel parts. The appearance of this series of resistance furnaces is rectangular, and the furnace shell is made of angle steel and cold-rolled plate welded together, with surface electrostatic spraying. The furnace is made of refractory materials sintered into shape, with heating elements placed inside. The furnace and the furnace shell are built with insulation materials, and the furnace door is fixed to the furnace mouth through hinges, making it easy to open and close. The supporting controller is connected separately to the electric furnace to adapt to the installation and placement of the working position.
What are the functional characteristics of a muffle furnace?
The muffle furnace is suitable for industrial analysis and industrial heat treatment of ash content, volatile matter, Roga index, bonding index, coal in industries and departments such as coal, electricity, chemical industry, metallurgy, building materials, pharmaceuticals, and scientific research.
1. Heat from both sides and the bottom three sides of the muffle furnace to ensure uniform temperature distribution.
2. The double-layer furnace shell structure is stable; The furnace shell is made of cold plate and stainless steel plate materials with electrostatic spraying. The vacuum fiber furnace used has good insulation effect, fast heating speed, and significant energy saving. Compared with traditional muffle furnaces, it saves 1/2 of time and 2/3 of electricity;
3. Adopting a brand new LCD Chinese display and intelligent control technology, while displaying the test process, time, temperature, and function, it can reduce visual reading and human operation errors and improve work efficiency. The self selected program can be set in multiple segments. Fast heating speed, significant energy saving, good insulation effect, and easy operation.
A Brief Discussion on the Comprehensive Heat Transfer inside the Muffle Furnace
In muffle furnace heat exchange, it is usually divided into at least three different temperature zones: furnace gas, furnace wall, and heated metal. Among them, the temperature of the furnace gas; The temperature of the furnace wall is second; The temperature of the metal being heated. In this way, heat exchange occurs between the furnace and the furnace wall, between the furnace gas and the metal, and between the furnace wall and the metal through convection, as well as heat loss due to the thermal conductivity of the furnace wall (which also has a certain impact on the heat exchange inside the furnace).
(1) After the heat transfer from the furnace gas to the metal is transferred to the furnace wall and the surface of the metal, a part is attracted and another part is reflected back. The reflected heat needs to be absorbed by the furnace gas filling the furnace, with a portion being absorbed by the gas and the remaining portion being directed to the opposite furnace wall or metal, repeating this process.
(2) The heat transfer of the furnace wall and furnace to the metal is somewhat similar to the previous one, which is also repeated and continuous. The difference is that the inner surface of the furnace wall also absorbs heat through convection, while this heat is still transmitted out in a certain way.
(3) The convective heat transfer of furnace gas to metal in existing flame furnace chambers is mostly within the temperature range of 800 ℃ to 1400 ℃. When the furnace gas temperature is around 800 ℃, the effect is almost equal to convection. When the furnace temperature exceeds 800 ℃, convective heat transfer decreases while heat transfer increases sharply. For example, when the temperature of the open hearth gas in a steel plant reaches around 1800 ℃, some of it has already reached about 95% of the total heat transfer.
Furnace size: 200x300x500mm Furnace size can be customized
High operating temperature: 1200 degrees Celsius
Long term working temperature: 300-1700 degrees Celsius