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김재열(Jae Yeol Kim),정효희(HyoHee Jung),최승현(SeungHyun Choi),최진호(JinHo Choi),김종문(JongMun Kim) 한국트라이볼로지학회 2008 한국트라이볼로지학회 학술대회 Vol.2008 No.11
Can divide into bisk kind extruder and screw extruder if divide greatly extruder by basic. To use to pump that carry water and oil as plastic extrusion simplicity of utilization be but thing which is used most these day is screw extruder. Use of screw is using at a lot of extrusion processes. Extrusion process is becoming use that is much in complex processing and process to charge shape or form of various material with, plastic material, medicine material, food material, polymer composite material, iron and ceramics powder material etc. Also, because material correction of deformities by flow and physicochemical reaction phenomenon according to heat transfer and so on of material at extrusion process is available, become fearful. And various material comes to hopper because extruder has function by blender and mixing of materials can go well before come out through dice. These change process is so complicated that process condition is decided by trial and error that process condition is underground mainly at extrusion molding process.
김재열(JaeYeol Kim),정효희(HyoHee Jung),최진호(JinHo Choi) 한국트라이볼로지학회 2009 한국트라이볼로지학회지 (Tribol. Lubr.) Vol.25 No.3
Extruders can be basically divided into bisk and screw type of extruders. Though plastic extruders are often used for its simplicity for water and oil transportation pumps, these days screw extruders are mostly used. Screws are used in many extrusion processes to manufacture complex and complicated shaped parts made of plastics, medicine materials, food, polymer composites, iron and ceramic powders, etc. Also, material correction of deformities is caused by flow and physicochemical reaction phenomenonand material extrusion is processed according to heat transfer. various material comes to hopper because extruder has function by blender and mixing of materials can go well before come out through dice. These change process is so complicated that process condition is decided by trial and error that process condition is underground mainly at extrusion molding process.
광섬유 레이저 엔코더를 이용한 초정밀 X-Y 스테이지의 위치결정에 관한 연구
김재열(JaeYeol Kim),정효희(HyoHee Jung),곽남수(NamSu Kwak) 한국트라이볼로지학회 2007 한국트라이볼로지학회 학술대회 Vol.2007 No.6
Performance test of servo control system that is used ultra-precision positioning system with single plane X-Y stage is performed by simulation with Matlab. Analyzed for previous control algorithm and adapted for modem control theory, dual servo algorithm is developed by minimum order observer, and stability and priority on controller are secured. Through the simulation and experiments on ultra precision positioning, stability and priority on ultra-precision positioning system with single plane X-Y stage and control algorithm are secured by using Matlab with Simulink and ControlDesk made in dSPACE.
김재열(JaeYeol Kim),정효희(HyoHee Jung),고명석(MyungSeok Ko),최승현(SeungHyun Choi),최진호(JinHo Choi),김종문(JongMun Kim),홍철(Cheol Hong) 한국트라이볼로지학회 2008 한국트라이볼로지학회 학술대회 Vol.2008 No.6
Have preserved perfectly polymer raw material of solid state or High horoscope at process at extrusion process and try much to heighten precision of raw material supply and processing perfectly. It is extrusion Screw and temperature pressure control system been hopper system and the most important parts among parts used at extrusion process. In printer roller incrustment development that is main target of system development applying system developed in research that serve that a lot of problems appear and supplements the problem in each system in case of operate extrusion system using heat range plasticity raw material among polymer raw material thus to extrusion molding system that use thermoplasticity polymer raw material correct and quantitative target achievement possibility will be done and will produce epoch-making and stable product in extrusion process that uses thermoplastic polymer raw material.