ThermalExpertiseBrochure-11-web.pdf - 第3页

BTU’s experienced team of engineers employs the latest technology in system design including CAD, Finite Element Analysis, and Compu- tational Fluid Dynamics. These advanced techniques accelerate the development process …

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SINCE 1950, AND WITH OVER 10,000 UNITS SHIPPED, BTU
INTERNATIONAL HAS BEEN THE TRUSTED NAME FOR HIGH-TECH
CUSTOMERS WITH A NEED TO SOLVE HIGH-VOLUME THERMAL
PROCESSING CHALLENGES. BTU’S HIGH TEMPERATURE BELT
FURNACES HAVE BEEN MANUFACTURED IN MASSACHUSETTS FOR
OVER SIX DECADES; ISO 9001 QUALITY CERTIFICATION SAFEGUARDS
THAT EACH UNIT IS SUBJECT TO EXACTING BUILD AND TEST CRITERIA.
TODAY, IN THE 100,000 SQFT STATE OF THE ART MANUFACTURING
FACILITY, CRAFTSMEN WITH DECADES OF EXPERIENCE ENSURE THE
HIGHEST QUALITY PERFORMANCE AND RELIABILITY FOR EACH UNIT
.
USA Made Quality since 1950
Continuous belt furnaces from BTU are known for long-term
reliability, superior process performance, and service excellence.
In partnering with BTU, manufacturers can expect a customized
solution that will exceed expectations, not only for process
performance, but also for reliability and usable lifetime.
BTU’s experienced team of engineers employs the latest technology
in system design including CAD, Finite Element Analysis, and Compu-
tational Fluid Dynamics. These advanced techniques accelerate the
development process while reducing errors and variation in design. In
partnership with customers, these tools can be used to analyze and solve
the most complex thermal processing challenges resulting in the world’s
best performing continuous furnaces.
Temperature Control
BTU’s muffle furnaces maintain temperature uniformity by utilizing
automated thermal controls and segmented programmed and con-
trolled by the WINCON
™
system software.
• Equipped with top and bottom heaters (side heaters optional)
• ±2°C across belt uniformity typical
BTU Technology
PROCESS CHAMBER CROSS-SECTION
belt
heaters
LEFT CENTER RIGHT
LEFT CENTER RIGHT
insulation
product
Atmosphere Control
Advanced Analytical/Modeling Capabilities
The Controlled Atmosphere Furnace from BTU features precise at-
mosphere controls to monitor critical parameters within the process
chamber. The gas control panel is designed to operate in a safe/ failsafe
manner while minimizing operator intervention.
• Achieves O
2
and moisture levels of <2ppm and H
2
purity of 95%
• Optional gas barriers provide isolation of gases for maximum atmo-
sphere control
• Monitoring devices for ow and pressure confirm adequate gas supply
• Gas safety system monitors ignitors to ensure spent process gas is
combusted prior to entering the atmosphere (Hydrogen or reducing
atmosphere)
HEAT/GAS
BARRIER
belt
N
2
N
2
Applications Support/Process Development
BTU International has advanced process applications labs in both the
USA and China. Staffed by expert process engineers, the labs boast an
impressive array of equipment including a wet lab and metrology. These
labs, near Boston, Massachusetts in the USA, and Shanghai in China, are
available for both demonstration and process development work includ-
ing batch-to-inline conversions.
ENT
nat
nat
980
980
1050
1050
1065
1050
nat
nat
nat
nat
ves
EXIT
ll ED
ED CL
VEST
Z1
Z2
Z3
Z4
Z5
Z6
1178
778
378
-22
Celsius
0530 45 60 75 90 105
Minutes (slope Degrees/Minutes)
Belt Speed 2.0 in/min
Dryers Convection |IR
Controlled Atmosphere Furnace
Typical specifications represent common
configurations, all furnaces are fully customizable
Standard Features
• 1180°C maximum
temperature rating
• Air/Nitrogen/Hydrogen
capable
• FEC (fully enclosed coil)
heaters formed into ceramic
insulation panels
• Water cooling
• Gas tight mufe
• Cross belt temperature of
±2°C for belt widths up
to 36 inches
• Independent over tempera-
ture control in each zone
• WINCON Multi-Language
Control Software
• Closed loop belt speed
control
• Atmosphere safety NFPA
86C compliant
Options
• Heat/gas barriers to
isolate gases
• Eductors for heating
or cooling
• Venturi controlled exhaust
stacks
• Atmosphere analyzer and
sample systems
• Gas saturators for dew
point control
• ±1°C across belt uniformity
(pre-test qualification)
Typical Electronic Brazing Glass to Metal Seal
Specification* TCA 6 inch TCA 14 inch
Atmosphere Nitrogen or Hydrogen Nitrogen or Hydrogen
Atmosphere purity** 2 ppm O
2
and moisture 2 ppm O
2
and moisture
Conveyor width 6 in (15 cm) 14 in (36 cm)
Heated length 72 in (183 cm) 120 in (305 cm)
Heated zones 6 10
Conveyor speed 1-6 in/min 1-6 in/min
Cooling length 60 in (152 cm) 84 in (213 cm)
* All specifications are subject to change without notice. Additional
configurations available to meet your exact process requirements.
**Less than background supply.
Standard Features
• Air cooling
• Closed-loop belt speed control
• Sealing layers
• WINCON Multi-Language Control Software
Options
• Water cooling
• Closed-loop convection control
• Ultrasonic belt cleaner
Typical Specification*
Temperature Rating 400°C
Operating Temperature 100-350°C
Atmosphere Air or Nitrogen
Throughput Scalable
Conveyor Width 9-48 in (230-1220 mm)
Conveyor Type Mesh Belt - Edge or Standoff Support available
Conveyor Speed 5-30 in/min (12.7-76 cm/min)
Available Furnace Length 8-138 ft (2.5-42 m)
* All specifications are subject to change without notice. Additional configurations available to meet your exact process requirements.