Curing oven

Introduction to composite material curing oven:

The composite material curing oven is a specialized thermal equipment used for the molding and curing of polymer-based composite materials. By accurately controlling temperature and time parameters, it promotes cross-linking reactions in the resin matrix and forms a stable structure. Its core components include a sealed furnace body, heating system, high-precision temperature control module, circulating air duct, and cooling system. Some models also integrate a vacuum system to eliminate air bubbles. This equipment is suitable for processes such as prepreg lamination and vacuum bag molding in aerospace (carbon fiber components), new energy vehicles (battery casings), and wind turbine blades, ensuring that the materials meet the designed mechanical properties and weather resistance. Modern curing ovens use intelligent PID algorithms and distributed sensor networks to achieve ±2℃ temperature field uniformity. Coupled with energy-saving insulation design, they improve curing efficiency while reducing energy consumption. They are key equipment in composite material manufacturing.

Characteristics of our curing oven:

Non-pressurized autoclave, different from ordinary oven-modified curing oven

Process requirements and control functions are consistent with those of the autoclave

Conduct temperature uniformity testing in strict accordance with Boeing and Airbus standards

Customizable studio size and other optional features

Tailored process control software for composite materials

Secure multi-level user management, making production management more effective

Air temperature control, product temperature control, differential temperature control, and other temperature control modes

Intelligent judgment of abnormal electric couples and abnormal vacuum values to ensure the quality of each furnace product

Complete data records, parts analysis reports

Unique modular design, partition control, to achieve capacity optimization

Composite material curing oven model parameters:

Composite material curing oven application areas:

Composite material curing ovens are widely used in manufacturing, especially in aerospace (such as carbon fiber fuselages, satellite brackets, rocket fairings), new energy vehicles (battery pack casings, lightweight chassis), wind energy (large blades, nacelle covers), and rail transportation (body panels, interior panels). Their high-precision temperature control can meet the needs of prepreg curing and vacuum bag forming, ensuring material interface bonding strength and dimensional stability. In the electronics field, the equipment is used for curing 5G base station antenna covers and semiconductor packaging materials; in the sports equipment industry, it is used for the mass production of high-performance bicycle frames, tennis rackets, and other products. In addition, shipbuilding (hull sandwich structures), military equipment (armor protective plates), and medical devices (carbon fiber prosthetics) also rely on them to achieve low porosity molding of complex components, promoting the industrial application of lightweight and weather-resistant materials.

Composition of composite material curing oven system:

The system composition of composite material curing oven mainly includes the following core modules:

1. Furnace structure

- Closed cavity: The inner liner plate is made of stainless steel, and the outer liner plate is welded with carbon steel. The inner lining is made of thermal insulation materials (such as high-density aluminum silicate wool, which can withstand high temperatures up to 850°C), ensuring airtightness and thermal stability under high temperatures.   

 - Door sealing device: It adopts manual door opening, equipped with high temperature sealing ring, and the door lock adopts adjustable structure with a sheep horn handle lock. The surface is chrome plated to achieve rapid opening and closing and high pressure environment sealing.   

2. Heating system

- Heating method: 316 stainless steel finned electric heater group, supporting zoned temperature control, adapting to different material heat requirements.   

- Heat source layout: evenly distributed at the bottom and on both sides, combined with a reflective plate design to optimize heat radiation efficiency.   

3. Temperature control system

- Temperature control module: High-precision PID algorithm, paired with thermocouples and fiber optic sensors, achieves ±2℃ temperature field uniformity.   

- Distributed sensor network: Monitor temperature gradients inside the furnace at multiple points and dynamically adjust heating power.   

4. Vacuum system (optional)

- Vacuum pump set: Roots pump + rotary vane pump combination, capable of achieving a vacuum level of 10⁻²Pa, effectively eliminating resin bubbles.   

- Vacuum bag sealing interface: Connect external vacuum pipeline and adapt to prepreg molding process.   

5. Recirculation duct system

- Forced convection fan: high temperature resistant turbine, drives airflow circulation, accelerates heat exchange.   

- Deflector design: Optimize airflow distribution and reduce temperature fluctuations.   

6. Intelligent control unit

- Human-machine interface (HMI): touch screen operation, support multi-segment process curve programming and storage.   

- Communication interface: Supports Modbus and Ethernet protocols, integrated into the factory MES system.   

7. Safety protection system

- Overtemperature alarm: Redundant sensors trigger an emergency stop, and the pressure relief valve automatically releases pressure.   

- Emergency cooling device: water cooling coil or nitrogen injection to prevent abnormal temperature rise of equipment.   

8. Auxiliary equipment

- Cooling system: water-cooled heat exchanger or air-cooled unit, to accelerate the cooling process after curing.   

- Data recorder: stores process parameters, supports quality traceability and process optimization.   

The system achieves high-precision curing of composite materials through multi-module collaboration, meeting the stringent process requirements of aerospace, new energy, and other fields.