Numerical Study of Temperature Distribution Control in Precision Glass Molding Furnace

  • Yang Hu
  • Lianguan ShenEmail author
  • Jian Zhou
  • Mujun Li
Regular Paper


In a precision glass molding process, glass preform is compressed at a high temperature well above its transition temperature and the temperature distribution inside plays an important role in determining the quality of final products. In this research, a 2D axisymmetric numerical heat transfer model, integrated with an innovative PID control subroutine, was employed for simulating the temperature control process and obtaining transient temperature distribution in the glass preform. Feasibility of this method was validated by experiments with good agreements. Finally, influence of air gap between glass preform and upper mold as well as temperature control mode were investigated. The results showed that temperature difference of the molds had a severer influence on the temperature distribution of glass preform with the decrease of air gap. In addition, a two-point control strategy was demonstrated as a valid method to improve the temperature uniformity in the glass preform.


Heat transfer Numerical simulation PID control Precision glass molding 


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Copyright information

© Korean Society for Precision Engineering and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Precision Machinery and Precision InstrumentationUniversity of Science and Technology of ChinaHefei, AnhuiChina
  2. 2.Institute of TribologyHefei University of TechnologyHefei, AnhuiChina

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