Overview

The continuous production line for carbon paper/carbon cloth designed by Yuanhang Industrial Furnace is a large-scale manufacturing system developed for fuel cells, specialty fabrics, and flexible carbon fiber materials. The production line integrates automatic unwinding/rewinding, low-temperature tar removal, medium-temperature carbonization, high-temperature carbonization, and ultra-high temperature graphitization modules. Through precise temperature field balancing and atmosphere protection, it achieves continuous modification of high-performance materials.

Image: Yuanhang Industrial Furnace - Roll-to-Roll Continuous Carbonization/Graphitization Production Line

Technical Advantages

• ? Wide Temperature Range Processing: Supports continuous temperature control from 0 to 2800°C, meeting all process requirements from pre-oxidation and carbonization to graphitization.
  ? Precision Tension Control: Utilizes a high-precision closed-loop tension control system with linkage to ensure flexible substrates remain unstretched, undamaged, and wrinkle-free at high temperatures.
  ? Dual Monitoring: Integrates high-precision platinum-rhodium thermocouples and imported two-color infrared pyrometry to ensure monitoring accuracy across the entire temperature range.
  ? Intelligent Temperature Control: Digital intelligent system supports storage of up to 20 process curves (totaling 400 segments) with fully automatic execution of heating and cooling cycles.
  ? Low Harmonic Interference: Employs the latest IGBT power supply, featuring quieter operation, high power factor, and minimal harmonic interference to the power grid.

Process Sections

1. Low-Temperature Carbonization & Tar Removal Zone
• Function:Used for pretreatment and low-temperature carbonization of composite carbon cloth.
• Specifications: 4-meter long furnace chamber (W800mm*H150mm), rated temperature 850°C.
• Heating: Top and bottom zone heating with high-temperature resistance wires, precise temperature control using S-type platinum-rhodium thermocouples.

2. Medium-High Temperature Carbonization Zone
• Function: Achieves high-degree carbonization and densification of the substrate.
• Temperature: Operating temperature 1650°C, maximum 1700°C.
• Control: Adjustable gate valve at the furnace opening (0-80mm adjustable range), slight positive pressure protection with nitrogen/argon atmosphere.

Winding System

• • Steering System: Equipped with a fully automatic steering device to ensure material alignment.
  • Precision Sealing: Utilizes specialized gas sealing technology at the material inlet and outlet, safeguarding internal pressure and atmosphere purity.
  • Modular Installation: Components are clearly numbered and labeled, enabling remote diagnostics and facilitating quick maintenance.

Continuous Operation On-Site Video Presentation