CVI 3500™

Work Zone: 43″ ID & 75″ H

Graphite retort & heating elements

Five Zone Temperature Control

Operating temperature up to 1600 °C

Thermal Processing up to 1600 °C

Heating Rate >10 °C per min

Low Pressure Operation

Operating pressure 7 to 10 Torr

CVD Equipment’s CVI platform is used to coat fiber preforms with silicon carbide (SiC), boron nitride (BN), silicon nitride (Si₃N₄) and carbon. CVI processes are used to modify fiber matrix bonding by depositing thin interfacial layers on the fiber surface in the production of ceramic matrix composites. These advanced coatings are used in the aerospace industry to manufacture SiC/SiC composites used in gas turbine engines and other applications requiring advanced CMCs.

CVI 3500™ Features & Benefits:

Five Zone Resistance Furnace with independent zone temperature control

Temperature uniformity better than +/- 6 °C

Graphite retort & heating elements

Heating ramp rate >10 °C per min

Furnace cooldown in less than 12 hrs.

Stainless steel double wall, water cooled vacuum chamber

Coaxial gas injection

Gas preheat & mixing zone

Internal pyrolyzer

Heated exhaust line

Cold trap for ammonium chloride byproduct

Gantry crane to assist in part loading

Hydronics & GMS Cabinets

• Thermally controlled gas delivery system
• VCR stainless steel welded lines

Internal Graphite Retort

• Five zone furnace with independent zone temperature control
• Temperature uniformity better than +/- 6 °C

Neutralization System

Integrated effluent gas neutralization

Liquid spray packed tower with closed loop recirculation system

Closed loop pH control

powered by CVDWinPrC™

Powered by our CVDWinPrC™ process control software, the systems automatically log data and graphically show time-dependent values of user-selected parameters. CVDWinPrC™ also allows users to load preprogrammed recipes, modify, check, and create new recipes, and view real-time or saved process data.

Safety Protocols

The systems have application configured safety protocols embedded into relay logic, PLC, and CVDWinPrC™ software.

High-Touch Customer Service, Including:

• Site Survey
• Installation Coordination and Field Acceptance
• NRTL/UL/CE Certification Available
• Initial Start-Up Support
• On-Site Training
• Warranty Response and Remote Capability
• Help Desk Support & Customized Service Contract Plans
• Continuous Improvement Programs and Support
• Customized Site Support Contracts
• Spares and Consumables
• Preventative Maintenance
• Site Personnel Contracts