Browse > Article
http://dx.doi.org/10.5762/KAIS.2019.20.12.367

A Study on Cooling Condition for Quality Improvement of Rotary Molding Machine  

Kang, Jeong-Seok (Division of Mechanical Engineering, Chonbuk National University)
Kim, In (Siemens Industry Software)
Lee, Myungjae (Division of Mechanical Engineering, Chonbuk National University)
Yoon, Jai-young (Division of Mechanical Engineering, Chonbuk National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.20, no.12, 2019 , pp. 367-371 More about this Journal
Abstract
The molding for hollow products used widely in industry is rotational molding by heating and cooling. Uniform cooling is required to improve the quality of the product, and rapid cooling is required to improve the productivity. In this paper, the cooling condition is largely classified into the case of no forced cooling by the fan and forced cooling by the fan. In addition, when forced cooling by the fan is not performed, the condition for stopping the molding machine horizontally and the condition for stopping the molding machine vertically were classified. To confirm the forced cooling by the fan, the conditions were set such that only the molding machine rotates while the fan is not running and the upper and lower fans operate when only the lower fan is operated. The surface temperature of the rotary molding machine was analyzed by the STAR-CCM+ program for the case of air-cooling. The temperature distribution of the rotary molding machine was analyzed for five conditions and the temperature distribution for cooling was compared under each condition. Among the five cases, Case 4 was lowest at approximately 35 ℃ after 900sec.
Keywords
Rotality Molding; Uniform; Cooling; CFD; Surface Temperature;
Citations & Related Records
연도 인용수 순위
  • Reference
1 M. S. Lee, J. S. Choi and C. K. Chun, "Analysis of Temperature Distribution of Solid and Gas in the Rotary Cooler", J. of Korean Inst. Resources Recycling, Vol.11, No.3, pp.25-30, 2002.
2 S. T. Jeon, Y. Y. Kim, J. S. Lee, J. S. Park and D. B. Lee, "Cooling of a Rotating Heated Flat Plate by Water Jet Impingement", Solar Energy, Vol.15, No.2, pp.47-64, 1995.
3 P. J. Lee, H. Choi and S. H. Lee, "Cooling Heat Transfer from a Rotating Roll by Impingung Water Spray Jets", KSME, Vol.26, No.6, pp.779-787, 2002. DOI: https://doi.org/10.3795/ksme-b.2002.26.6.779   DOI
4 STAR-CCM+ Documentation, Version 13., Siemens PLM Software, 2018.