Despatch CTE 1000 User Manual
INSPIRED INNOVATION
u Carbon Fiber Oxidation Oven
Center-to-ends airflow for optimal temperature
uniformity resulting in consistently oxidized
density across the entire tow band
Oxidation is considered to be one of the most important process steps, yet is also
considered the process step that still has the greatest improvement potential.
Since oxidation is an exothermic process, consistent airow to uniformly
remove heat from all tows across the web is a critical success factor. e
Despatch center-to-ends carbon ber oxidation oven produces a uniform
airow over the tows allowing the process to be operated closer to the
“exotherm”, increasing the chemical reaction rate. Airow turbulence
is minimized to prevent cosmetic damage to ber tows. Consistency
of process results in no skinning (uncured core) and more uniform
densication across the entire tow band. Center-to-ends airow provides
for up to 30% faster rates of oxidation than conventional
cross ow or vertical down ow oven designs.
FEATURES AT A GLANCE
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Center-to-ends airflow
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Industry’s finest airflow and temperature
uniformity resulting in uniform oxidized
density across the entire tow band
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Maximized heated zone size provides for
increased fiber production
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Air velocities up to 4 meters per second
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Insulated vestibules for capture of process
and potential fugitive emissions
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Provisions for vertical stacking (up to 3 high)
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Scalable designs
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Easy access for periodic cleaning
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Filter removal while in operation
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End louvers to reduce the inward migration
of cold air and egress of the heated process
chamber
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Energy efficient design
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Fully tested prior to shipment
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Advanced process automation control
For more than 40 years, Despatch has
been the industry’s leading provider of
carbon ber manufacturing equipment
and process technology. Trust the
experts in thermal process technology
for the lowest risk solution.
Minneapolis • shanghai • Berlin • singapore • hsinchu • ToKYo • seoul
PATENTED CENTER-TO-ENDS AIRFLOW DESIGN
Through extensive fiber trials, we have identified center-to-ends airflow
directionality as the most effective type of airflow to uniformly oxidize PAN
fibers from 1K up to 320K.
OPTIONS
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Patent-pending ACER Tech (Atmoshphere
Control and Energy Reduction Technology)
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Automated end slots
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State-of-the art controls systems
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Fire mitigation systems
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Rapid cool-down systems
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Hybrid heat system
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Pressure relief
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Modular to fully assembled construction
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Installation and start-up supervision
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Commissioning services
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Oxidation rolls, stands and drives
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CE
Patent-pending ACER Technology
reduces energy cost, enhances
process atmosphere control and
Optional auto-adjust end-louvers
open for easy threading and close
for reduced heat loss.
A PLC with a SCADA interface
monitors all systems including an
optional fire mitigation system.
improves fiber quality.
Technical speciFicaTion suMMarY PILOT SCALE CTE 1000 CTE 1800 CTE 2100 CTE 3000 CTE 4200
Web width 400 mm 1.0 meter 1.8 meter 2.1 meter 3.0 meter 4.2 meter
Temperature Uniformity ±1.5°C in effective heated length ±2.5°C in effective heated length
Number of passes per zone 6 passes up to 12 passes up to 12 passes up to 12 passes up to 12 passes up to 12 passes
Heated zone length 8 meters up to 15 meters up to 15 meters up to 15 meters up to 15 meters up to 15 meters
Typical Roll Diameters 200 mm 200 mm 228 mm 228mm 275mm 228mm (x2)
Heating Method Electric or indirect gas or hybrid
Operating Temperature Up to 300°C (typical)
* Other sizes available by request.
service and Technical supporT
service parts: 1-800-473-7373
international service/main: 1-952-469-8230
service fax: 1-952-469-8193
gloBal headquarTers
phone: 1-888-DESPATCH (1-888-337-7282)
international/main: 1-952-469-5424
fax: 1-952-469-4513
8860 207th Street West
Minneapolis, MN 55044 USA
service@despatch.com
sales@despatch.com
www.despatch.com
© 2011 Despatch Industries. All rights reserved. Despatch is a registered trademark of Despatch Industries in the U.S. and other countries. Oxidation-2-11
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