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Temperature Control Improvement of Pressure Heating Roller for Flexible Flat Cable Production  

Kim Jae Hak (한국기술교육대학교)
Lee Ho Jung (한국기술교육대학교)
Chun Keyoung Jin (한국생산기술연구원)
Publication Information
Journal of the Korean Society for Precision Engineering / v.22, no.7, 2005 , pp. 155-163 More about this Journal
Abstract
Pressure heating rollers with temperature control were mounted to a flat cable laminating machine (FCLM). Pressure heating rollers should be heated up to the setting temperature $(175^{\circ}C)$ and kept on to producing good quality flexible flat cables (FFC). Existing Pressure heating rollers took more than 70minutes to the setting temperature and did not keep on the setting temperature in production. Temperature controller, electric power controller, material and diameter of rollers and heat capacities were changed to improve the temperature control of the pressure heat rollers for better production of the FFC. Thus, the reaching time to the setting temperature (RT), temperature stability time (TST) and temperature hunting (TH) were measured and compared with the existing pressure rollers case. The RT of A roller was shortened by 50minutes, and B roller was shortened by 15minutes. The TST of A roller was shortened by 13minutes, and B roller was shortened by 15minutes. The THs of both A and B rollers were settled up to ${\pm}5^{\circ}C$. Finally, the productivity of the FCLM and the quality of the FFC were increased.
Keywords
Computational heat transfer analysis; Computational structure analysis; Fiat cable laminating machine; Flexible flat cable; PID; Pressure heating roller Setting temperature; Temperature control unit; Temperature hunting; Temperature stability time;
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