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Home > System > Supercritical Fluid System > Supercritical Carbon Dioxide (CO2) > Supercritical De-binding System

Supercritical Fluid System

Supercritical De-binding System - Overview
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    Overview    SCDB 05    SCDB 10    SCDB 100  
 
There are two kinds of powder injection molding that are Metal Injection Molding(MIM) and Ceramic Injection Molding(CIM). Input types of metal powder and ceramic powder into binder system and mix them with binder, then get green body after the mixing powder injection molding. Following is debinding the binder with supercritical CO₂ and sintering at the last step. Supercritical CO₂can pass through microscopic voids of metal powder and melt the binder fast. Debinding with supercritical CO₂advantages are mass production, exacted binder's reuse, time saving and no harm to environment. Even though large investment at first, this is effective method in the long-term.
 
Debinding process with supercritical CO2
 
Advantage
• Shorten debinding time
• Environmentally friendly, low energy investment
• No swelling or shrinkage
• Effective in application of nano powder
• Mass production is possible (1st application for mass production in the world)
• Extracted binder can be reused
 
Common
extraction
methods
Heating method Steam up the binder

-Shape change
-taking long time

Vacuum heating
method
Making vacuum environment
Heat to 400℃
- removing efficiency improved
-Shape change
-taking long time
Solvent extraction
method
Use hexane as solvent - environment problem consideration -shorten time
New
extraction
method

Supercritical
extraction method
Supercritical fluid’s solvency - eco-friendly
-shorten time(save energy)
 
Application
Supercritical CO₂ debinding is widely used in binder removal, paraffin wax removal and polishing oil removal from swarf in powder injection molding process.
 
Wax extraction process from WC-10wt% Co with supercritical CO2
 
Advantage
Stability
• Obtained ASME Stamps
• Certification of KGS and KOSHA
Excellent design
• Outer jacket utilizing heating medium to realize constant temperature
• Totally insulation of inside and outside
• Multiplex safety device
Customized engineering
• Quick clamp type
• Various options
• For various use
• Accurate measurement
Convenient maintenance
• Check process easily by various measuring instrument
• Assemble , disassemble and clean easily
• Technical A/S team
 
Product Models
SCDB 05
SCDB 10
SCDB 100
 
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255, Techno 2-ro, Yuseong-gu, Daejeon, Korea (Daedeok Techno Valley)        Tel +82-42-931-6100      Fax +82-42-935-6103     sales@suflux.com
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