Micro prism film used in LCD industry can be manufactured by roll to roll method with copper-plated roll mold. As copper-plated roll mold is getting larger, pitch error is getting severer. The pitch error drops the qu...Micro prism film used in LCD industry can be manufactured by roll to roll method with copper-plated roll mold. As copper-plated roll mold is getting larger, pitch error is getting severer. The pitch error drops the quality of micro prism film. The main cause of the pitch error was investigated during machining large roll mold whose machined length was 1 200 mm. The temperature of machining system was elevated during machining roll mold, and this elevation induced thermal expansion of the system. The temperature variation around the roll mold also made thermal expansion of the roll mold. The amount of thermal expansion had strong relationship to the amount of pitch error. Therefore, the roll mold was machined after warming-up of machining system and precise temperature controller around copper-plated roll mold was installed, which minimized the temperature variation. Finally, precise micro prism patterns without pitch error were machined on the large roll mold.展开更多
研究了稀土元素铈对化学镀Co Fe B合金工艺的影响。在正交试验的基础上以称重法分析了稀土元素铈加入前后主盐、还原剂、络合剂、缓冲剂等对沉积速率的影响。结果表明,在稀土元素铈加入后,化学镀Co Fe B合金的沉积速率有不同程度的提高...研究了稀土元素铈对化学镀Co Fe B合金工艺的影响。在正交试验的基础上以称重法分析了稀土元素铈加入前后主盐、还原剂、络合剂、缓冲剂等对沉积速率的影响。结果表明,在稀土元素铈加入后,化学镀Co Fe B合金的沉积速率有不同程度的提高,并结合镀层质量,得出化学镀Co Fe B合金最佳镀覆工艺。展开更多
基金Project (2010-0008-277) supported by NCRC (National Core Research Center) Program through the National Research Foundation of Korea funded by the Ministry of Education, Science and Technology, Korea
文摘Micro prism film used in LCD industry can be manufactured by roll to roll method with copper-plated roll mold. As copper-plated roll mold is getting larger, pitch error is getting severer. The pitch error drops the quality of micro prism film. The main cause of the pitch error was investigated during machining large roll mold whose machined length was 1 200 mm. The temperature of machining system was elevated during machining roll mold, and this elevation induced thermal expansion of the system. The temperature variation around the roll mold also made thermal expansion of the roll mold. The amount of thermal expansion had strong relationship to the amount of pitch error. Therefore, the roll mold was machined after warming-up of machining system and precise temperature controller around copper-plated roll mold was installed, which minimized the temperature variation. Finally, precise micro prism patterns without pitch error were machined on the large roll mold.
