Composite Materials and New Materials Tunnel Oven

The Composite Materials and New Materials Tunnel Oven is a continuous industrial curing and thermal processing equipment.Through continuous conveying systems such as conveyor belts, mesh belts, or overhead hanging chains, composite material products pass through a temperature-controlled tunnel heating zone to achieve processes including preheating, drying, curing, and sintering.The equipment is widely used for industrial production of advanced composite materials requiring precise temperature control and stable thermal processing.

Core Applications

Aerospace Industry

Used for resin curing of composite structural components made from:

Carbon fiber composites

Glass fiber composites

Advanced lightweight composite materials

Applications include aircraft structural parts and aerospace components requiring high strength and low weight.

Automotive Industry

Used for thermal forming and curing of:

Carbon fiber lightweight body components

Automotive interior composite parts

High-performance composite structures

to improve vehicle lightweight performance and structural strength.

Wind Power Industry

Used for heating and curing of new composite material components for:

Wind turbine blades

Large composite structural parts

ensuring stable mechanical properties and long-term durability.

Electronic and Electrical Industry

Used for continuous baking and encapsulation processing of:

PCB substrates

Insulating composite materials

Electronic packaging materials

Sports Equipment Industry

Used for molding and curing of high-performance composite products, including:

Carbon fiber bicycle frames

Golf clubs

Tennis rackets

Other carbon fiber sports equipment

Applicable Standards

The equipment manufacturing and process implementation generally comply with the following standards:

Safety and General Standards

GB/T 10067.1

Basic Technical Requirements for Electric Heating Equipment

GB 19517

National Technical Safety Specifications for Electrical Equipment

Temperature Control Standards

GB/T 9452

Measurement Method for Effective Heating Zone of Heat Treatment Furnaces

AMS 2750

Pyrometry Standard for Aerospace Material Heat Treatment

Applicable to high-performance aerospace composite material processing requiring strict temperature uniformity control.

Explosion-Proof Standards

If flammable volatile gases are generated during composite material curing, the equipment must comply with:

GB 3836 Series

Electrical Apparatus for Explosive Gas Atmospheres

and other relevant explosion-proof safety standards.

Main Equipment Features

Efficient Continuous Production

The equipment adopts a continuous production line structure, enabling:

Automatic feeding

Continuous heating and curing

Automatic discharge

The entire process is completed smoothly, making it suitable for large-scale industrial production.

Precise Temperature Control

Uses:

Multi-zone independent temperature control

Microcomputer PID control

Solid-state relay (SSR) control technology

The temperature uniformity inside the furnace can reach approximately ±1°C to ±3°C, ensuring consistent curing quality.

Energy Saving and Environmental Protection

Features include:

Optimized hot air circulation system

High-density thermal insulation materials

Reduced heat loss

Exhaust gas discharge interfaces

The system improves energy efficiency while meeting environmental protection requirements.

Intelligent Monitoring System

Usually equipped with:

PLC control system

Touchscreen operation interface

It can:

Monitor temperature in real time

Record process data

Store temperature curves

Export historical operating records

providing traceability for production quality management.

FAQ

Q1: What heating methods are commonly used in composite material tunnel ovens?

A: The main heating methods include:

Hot air circulation heating

Infrared radiation heating (medium-wave or short-wave)

Combined hot air and infrared heating systems

Hot air circulation ensures excellent temperature uniformity, while infrared heating provides faster surface penetration and heating efficiency.

Q2: How does the equipment ensure temperature uniformity in a long tunnel oven?

A: The tunnel is divided into multiple independent temperature control zones.

Each zone is equipped with:

Independent hot air circulation fans

Air duct adjustment valves

Precision temperature sensors

Through segmented control and adjustment, the system achieves accurate temperature regulation throughout the entire heating process.

Q3: Composite materials may release volatile gases during curing. How does the equipment handle them?

A: The equipment is designed with:

Forced exhaust systems

Smoke extraction systems

For toxic or flammable gases, the system can be equipped with:

Explosion-proof fans

VOC exhaust treatment interfaces

and can be connected to factory environmental treatment systems, such as RTO (Regenerative Thermal Oxidizer) equipment.

Q4: Can the conveyor speed and temperature be adjusted?

A: Yes.

The conveyor speed uses frequency conversion control and can be adjusted according to different composite material curing requirements.

Each heating zone temperature profile can be digitally programmed through the PLC system to achieve precise process control.

Q5: What advantages does a tunnel oven have compared with a traditional batch curing oven?

A: Traditional box-type curing ovens operate intermittently and require manual loading and unloading, resulting in:

Lower production efficiency

Higher heat loss

Greater labor requirements

A tunnel oven provides:

Fully automated continuous production

Higher production capacity

Better curing consistency

More stable product quality

making it more suitable for modern large-scale composite material manufacturing.