Experimental box type muffle furnace

The experimental box type muffle furnace is a laboratory and industrial equipment with high-temperature heating as its core function, which supports customization. The following introduces it from six aspects: principle, structure, function, application, customization service, and brand recommendation:

1. Working principle
The experimental box type muffle furnace achieves high-temperature heating by converting electrical energy into thermal energy, and its core principle is as follows:
Heating element: Using resistance wire, silicon carbon rod or silicon molybdenum rod as the heating source, heat is generated due to the resistance effect when current passes through, and the temperature rapidly increases.
Heat transfer method:
Conduction: Heat is transferred through solid media such as furnace materials (such as ceramic fibers, high alumina bricks) and shelves.
Convection: The air inside the furnace is heated to form thermal convection, which transfers heat to the sample.
Radiation: Heating elements emit heat in the form of electromagnetic waves at high temperatures, and the efficiency is proportional to the fourth power of temperature.
Temperature control: Real time monitoring of furnace temperature through thermocouples, feedback to temperature control instruments to adjust heating power, achieving precise temperature control (such as PID intelligent temperature control technology, temperature fluctuation ≤ 5 ℃).

2. Equipment structure
The experimental box type muffle furnace consists of the following core components:
Furnace: Made of high-temperature resistant materials such as ceramic fibers and high alumina bricks, it has good insulation performance, reduces heat loss, and ensures uniform temperature distribution.
Heating element: resistance wire, silicon carbon rod or silicon molybdenum rod, evenly installed on the inner wall or bottom of the furnace to achieve uniform radiation heating.
Temperature control system: including thermocouples, temperature controllers, and relays, which adjust the heating power through feedback to maintain the set temperature.
Safety protection devices, such as over temperature protection, leakage protection, furnace door interlocking, etc., ensure safe operation.
Air circulation system: Promote the flow of hot air inside the furnace through fans or natural convection to avoid local overheating.

3. Core functions
The experimental box type muffle furnace has the following functions:
Accurate temperature control: The temperature range covers 600 ℃ -1800 ℃, meeting different experimental needs.
Uniform heating: Through the synergistic effect of heat transfer, ensure uniform temperature distribution in the furnace.
Atmosphere control: Supports various atmosphere environments such as oxidation and inert gases to meet special experimental needs.
Safety protection: Equipped with independent over temperature protection, leakage protection and other devices to enhance equipment safety.

4. Application scenarios
The experimental box type muffle furnace is widely used in the following fields:
Materials Science:
Annealing: Reduce the hardness of metal materials, improve plasticity and toughness.
Quenching: Rapid heating and cooling to enhance metal hardness and strength.
Tempering: Eliminating quenching stress and improving material toughness.
Sintering: promotes the bonding and densification of ceramic particles, enhances strength and hardness.
Chemical analysis:
Ash content testing: Determine the content of carbon, hydrogen, oxygen and other elements in high-temperature combustion samples.
Thermogravimetric analysis: As a heating source, measure changes in material quality and analyze thermal stability.
Industrial manufacturing:
Sintering of electronic components: improving the performance of ceramic capacitors and resistors.
Metallurgical heat treatment: metal material annealing, ore roasting, etc.
Other fields:
Glass processing: Annealing eliminates stress and softens for easy molding.
Jewelry optimization: Heating gemstones enhances color vividness and transparency.

5. Customized services
The experimental box type muffle furnace supports customization, and the following parameters can be adjusted according to user needs:
Temperature range: customizable from low temperature (600 ℃) to ultra-high temperature (1800 ℃).
Furnace size: Suitable for different quantities or experimental containers to optimize space utilization.
Heating power: Control the heating rate and maximum temperature to meet the special material processing requirements.
Functional modules:
Atmosphere control: Integrated vacuum pump and gas flow meter to achieve inert gas protection or reaction atmosphere control.
Safety protection: Add independent over temperature protection, leakage protection and other devices.
Data recording: Equipped with a temperature recorder or data interface, supporting experimental data export and analysis.
Structure and Materials:
Furnace material: High temperature refractory materials (such as ceramic fibers and corundum bricks) are selected to improve thermal efficiency and service life.
Furnace door design: Adopting a sealed structure or observation window to reduce heat loss and facilitate observation of the experimental process.
Appearance and Size: Customize the appearance color, size, or movable wheels of the equipment according to the laboratory space layout.