中国塑料2018，Vol.32Issue(1)：90-96,7.DOI:10.19491/j.issn.1001-9278.2018.01.015
一种简单的用于滚塑工艺加热阶段的传热模型
A Simplified Heat Transfer Model for Heating Phase in Rotational Molding Process
刘学军1
作者信息
- 1. 北京工商大学材料与机械工程学院,北京100048
- 折叠
摘要
Abstract
A simplified heat transfer model for heating phase in rotational molding process was established upon the heating stage from the initial heating of mold to the initial melting of powders.The heat transfer coefficient between the inner mold wall and internal mixture was obtained from the unsteady heat conduction equation when the inner mold wall contacted the internal mixture.The differential equations for the model were solved with the aid of MATLAB software.This model was validated by comparing the experimental results with the calculated temperature of internal air.The effects of heating temperature inside the chamber,outer heat transfer coefficient and the thickness of plastic part on heating time and heating efficiency were investigated by use of this model.The results indicated that the heating efficiency increased with an extension of time,and it was higher for thicker plastic parts.关键词
滚塑工艺/加热阶段/传热模型/内部混合物温度/MATLAB软件Key words
rotational molding/heating phase/heat transfer model/temperature of internal mixture/MATLAB software分类
化学化工引用本文复制引用
刘学军..一种简单的用于滚塑工艺加热阶段的传热模型[J].中国塑料,2018,32(1):90-96,7.
