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A Comparison Analysis of the Feeding Method for the Uniform Mixing Rate of the Liquid Silicone Materials

액상실리콘 재료의 균일한 혼합비율을 위한 이송방식에 대한 비교 분석

  • Choo, Seong-Min (Department of Electronic Engineering, Catholic Kwandong University) ;
  • Kim, Young-Min (R&D Center, MEMSChip Co., Ltd.) ;
  • Lee, Keum-Won (Department of Electronic Engineering, Catholic Kwandong University)
  • Received : 2019.07.19
  • Accepted : 2019.08.13
  • Published : 2019.08.30

Abstract

In this paper, in order to compare the mixing ratio according to the feeding method, the input error of the main material and the sub material was measured and analyzed for 100 cycles using raw material having the same viscosity. As a result of the piston pump method, the input error of main material and sub material varied greatly from 0g to 3g, and the maximum error ratio was 10.3%. In the dual-screw rotation method, the input error varied from 0.01g to 0,4g, and the maximum error ratio was 0.41%, and almost no input error occurred. As the process cycle increased, it was found that the feed was almost uniform. The dual-screw rotary two-component mixing system was used to measure and analyze the inputs of the main and sub materials for 100 using three types of liquid silicones with different viscosities of the raw materials. As a result, the average error was 0.75g and the error rate was less than 1% regardless of the viscosity of the applied raw materials. When rae materials having the same viscosity were used, the average error ratio of the piston pump method was 4.09%.

본 논문은 이송방식에 따른 혼합비율을 비교하기 위하여 동일 점도를 가지는 원재료를 사용하여 100 사이클 동안 주재료와 부재료의 투입량 오차를 측정하고 분석하였다. 측정 결과 피스톤 펌프 방식에서는 주재료와 부재료의 투입량 오차는 0g에서 3g까지 변화의 폭이 컸으며, 최대 오차비율은 10.3%로 큰 편차를 보였다. 듀얼-스크류 회전방식에서는 0.01g에서 0.4g으로 최대 오차 비율이 0.41%로 투입량 오차가 거의 발생하지 않았으며, 공정 사이클이 증가함에도 거의 균등하게 투입됨을 알 수 있었다. 듀얼-스크류 회전방식 이액형 혼합시스템을 이용하여 원재료의 점도가 다른 3종류의 액상 실리콘을 사용하여 100 사이클 동안의 주재료와 부재료의 투입량을 측정하고 분석하였다. 그 결과 적용한 원재료의 점도에 관계없이 평균 오차가 0.75g, 오차 비율은 1% 미만으로 측정되었으며, 동일 점도를 갖는 원재료를 사용했을 때 피스톤 펌프 방식의 평균 오차 비율은 4.09 %로 측정되었다. 이 결과는 듀얼-스크류 회전방식을 적용한 실험에서 일정한 혼합비율로 주재료와 부재료가 투입됨을 알 수 있었다.

Keywords

References

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