Overview

Currently, high-performance carbon-ceramic materials are primarily produced from carbon-based composite preforms using the liquid infiltration method (PIP process). The specialized vacuum impregnation equipment developed by Yuanhang utilizes alternating vacuum and pressure to infiltrate liquid PMS ceramic precursors into the pores of fiber preforms. This equipment not only supports direct impregnation but is also suitable for the combined process route of "first forming carbon-carbon preforms through chemical vapor deposition (CVD), followed by liquid infiltration (PIP) for densification."

Image: Yuanhang Industrial Furnace - Carbon-Ceramic Vacuum Impregnation System (High-Precision Weight Gain Monitoring)

Technical Highlights of Yuanhang Impregnation Furnace

• ? Intelligent Calculation: System integrates automatic calculation function for preform material weight gain, enabling real-time monitoring of densification progress.
  ? Cyclic Conversion: Automatic precursor circulation conversion system enables multiple repeated impregnation cycles automatically, ensuring optimal density.
  ? Corrosion-Resistant Design: All internal contact surfaces undergo specialized anti-corrosion treatment tailored to the chemical characteristics of organic precursors (such as PMS).
  ? High-Efficiency Production: Fully automated loading/unloading design with accompanying automatic transfer cart significantly reduces labor intensity.
  ? System Compatibility: Software algorithms share communication protocols with Yuanhang high-temperature pyrolysis furnaces, enabling full data interoperability throughout the carbon-ceramic production chain.

Supporting Production Line for Carbon-Ceramic Fabrication

Impregnation densification is the core step in the production of carbon-ceramic brake discs. Yuanhang provides complete process chain support:

图：远航工业炉-碳陶复合材料致密化配套车间

Process Flow