What are the types of experimental muffle furnaces?

There are various types of experimental muffle furnaces, which can be classified according to different classification methods. Here are some common types of experimental muffle furnaces:

Differentiate by heating element:
Electric wire muffle furnace: suitable for heating needs below 1000 ℃.
Silicon carbon rod muffle furnace: suitable for heating range of 1000~1300 ℃.
Silicon molybdenum rod muffle furnace: suitable for high temperature environment of 1600-1750 ℃.

Divided by rated temperature:
Low temperature muffle furnace: usually refers to a muffle furnace with a temperature range below 1000 ℃, suitable for some low-temperature chemical reactions and material processing.
Medium temperature muffle furnace: The working temperature range is 800 ℃~1200 ℃, widely used in laboratory and industrial heating treatment.
High temperature muffle furnace: The working temperature ranges from 1200 ℃ to 1600 ℃, suitable for experiments such as material sintering and melting at high temperatures.
Ultra high temperature muffle furnace: with a working temperature exceeding 1600 ℃, it is usually used for high-temperature experiments on special materials, such as ceramic sintering or powder metallurgy.

Differentiate by shape type:
Box type muffle furnace: has a square or rectangular furnace chamber, suitable for sintering ceramics, metals, and other materials.
Tube type muffle furnace: has a circular furnace chamber, suitable for sintering tubular or rod-shaped materials, and can be subjected to high-temperature treatment under specific atmospheres.
Crucible furnace: It is also a type of shape of muffle furnace, suitable for certain specific experimental needs.

Differentiate by control method:
PID regulation control muffle furnace: With a high-precision temperature control system, it can accurately control temperature according to the preset temperature curve.
Program controlled muffle furnace: can be automated according to preset programs, suitable for experiments that require complex heating processes.

Classified by insulation material:
Ordinary refractory brick muffle furnace: using refractory bricks as insulation materials, it has the advantages of good durability and low cost.
Ceramic fiber muffle furnace: using ceramic fiber as insulation material, it has the advantages of fast heating speed and good insulation effect.

Differentiate according to sealing requirements:
Conventional muffle furnace: No special sealing requirements, suitable for most conventional experiments.
Vacuum muffle furnace: With a vacuum furnace chamber, it can be subjected to high-temperature treatment in a low-pressure environment to prevent oxidation or pollution issues.
In addition, there are some special purpose experimental muffle furnaces, such as rotary muffle furnaces, micro muffle furnaces, etc., which are designed according to specific experimental needs and have unique functions and characteristics.

When choosing an experimental muffle furnace, it is necessary to comprehensively consider factors such as specific experimental needs, budget, laboratory space, etc., and select the most suitable muffle furnace type for oneself.