What is a muffle furnace?

A muffle furnace is a high-temperature heating equipment mainly used for conducting heat treatment experiments and process at high temperatures. The following is a detailed introduction about the muffle furnace:

Name and alias:
Official name: Muffle Furnace
Nicknames: Electric furnace, resistance furnace, Maofu furnace, Mafu furnace

Purpose and Function:
Muffle furnaces are commonly used in laboratories or industrial fields, mainly for heating objects at high temperatures to cause chemical or physical changes, such as sintering, annealing, pyrolysis, heat treatment, etc.
The main applications include laboratory research, materials science, analytical chemistry, fuel analysis, and geology.

Structural composition:
The structure of a muffle furnace is relatively simple, usually consisting of a shell, heater, hot zone isolator, reaction chamber, and temperature control system.
Heaters usually use resistance heating, with resistance wires made of high resistance materials (such as nickel chromium alloy) that generate heat when current passes through.
The reaction chamber is made of high-temperature resistant materials, such as quartz, ceramics, etc., to withstand high-temperature reactions.

working principle:
The working principle of a muffle furnace is based on resistance heating. When the current passes through the resistance wire, electrical energy is converted into thermal energy, which is then heated by the resistance wire and transferred to the heating chamber.
The objects inside the heating room absorb heat through thermal conduction and convection, and are heated to the desired temperature.

Technical parameters:
The muffle furnace with a thermal wire structure can reach a maximum operating temperature of 1000 ℃.
The maximum operating temperature of the silicon carbon rod muffle furnace can reach 1300 ℃.

characteristic:
The muffle furnace is easy to operate and maintain, and is equipped with a controllable chimney behind the furnace.
It is an intermittent production furnace that heats, insulates, and cools the products throughout the entire heating process. The products are fixed and the feeding and discharging are carried out through a single door or groove.

In summary, muffle furnace is a powerful high-temperature heating equipment widely used in various experiments and technological processes, which can meet the experimental and industrial needs of different fields.