Box type atmosphere annealing furnace

Box type atmosphere annealing furnace is a heat treatment equipment that combines vacuum technology and atmosphere control technology. It has the advantages of precise temperature control, atmosphere protection, high efficiency and energy saving, and is widely used in heat treatment processes in the fields of metals, ceramics, semiconductors, etc.

1. Working principle
The box type atmosphere annealing furnace converts electrical energy into thermal energy through electric heating elements such as resistance wires, silicon carbon rods, and silicon molybdenum rods, and transfers it to the workpieces inside the furnace through radiation and convection. Its core functions include:
Temperature control: PID algorithm is used to monitor the temperature in real time through thermocouples or thermal resistors, automatically adjust the heating power, and ensure temperature uniformity (usually with a temperature control accuracy of ± 1 ℃).
Atmosphere control: Protective or reactive gases such as nitrogen, argon, and hydrogen can be introduced to create an oxygen free or specific atmosphere environment, preventing workpiece oxidation or participation in chemical reactions.
Vacuum system: Some models are equipped with vacuum pumps, which can achieve low to high vacuum environments (vacuum degree range -0.1 MPa to 10 ⁻⁶ Pa), further improving the accuracy of atmosphere control.

2. Application Fields
Metal processing industry: used for quenching, tempering, annealing, welding and other processes to improve material hardness, strength and corrosion resistance.
Ceramic industry: supports sintering of ceramic raw materials and products to enhance material density and performance.
Semiconductor materials: suitable for silicon wafer cooling, baking, chemical vapor deposition and other processes, meeting high purity requirements.
New material research and development: used for heat treatment of nanomaterials and special alloys, promoting the progress of materials science.
Chemical and Life Sciences: Supports experimental needs such as high-temperature reaction control, cell culture, and protein crystallization.

3. Core advantages
Precise temperature control and atmosphere protection
Through intelligent temperature control system and atmosphere flow control, small temperature fluctuations and high atmosphere uniformity are achieved to ensure stable heat treatment effects.
Inert gas protection can effectively avoid problems such as oxidation and decarburization, and improve the surface quality and performance of products.
Efficient Energy Saving and Environmental Protection
By adopting advanced heating technology and efficient insulation materials, energy consumption is reduced by more than 20% compared to traditional equipment.
The vacuum environment promotes material degassing and purification, reduces impurity residue, and is suitable for high-purity fields such as aerospace and semiconductors.
Multifunctionality and flexibility
Supports various processes such as annealing, quenching, tempering, sintering, etc., suitable for processing workpieces of different materials and shapes.
The furnace size and temperature range can be customized (up to 1800 ℃) to meet diverse production needs.
Easy to operate and safe and reliable
The box type structure design facilitates the loading and unloading of workpieces and reduces operational difficulty.
Equipped with a dual circuit protection system (such as over temperature, over pressure, and disconnection) to ensure the safe operation of the equipment.

4. Technical parameters and customization options
Furnace size: Supports customization of circular or square shapes, with a common size range of 200 × 150 × 150mm to 1200 × 800 × 800mm.
Temperature range: up to 1800 ℃, recommended heating rate ≤ 10 ℃/min, fastest up to 30 ℃/min.
Atmosphere control: Multiple inlet and outlet ports can be configured, supporting gas detection and flow control of oxygen, hydrogen, ammonia, and other gases (0.6-6L/min).
Power Supply and Power: Voltage options include 220V or 380V, with a power range of 4kW to 110kW.