Effect of Heating Power Density on the Microwave Drying Foam Pattern

Xu Yuepeng1; Zhao Jianhua1; Zeng Fanyong1; Wang Xuan1

doi:10.15980/j.tzzz.2013.02.033

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Effect of Heating Power Density on the Microwave Drying Foam Pattern
Vol. 33, Issue 2, Pages: 164-166(2013)
Published： 2013 ，
DOI： 10.15980/j.tzzz.2013.02.033

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[1]徐越鹏,赵建华,曾凡勇,王玄.加热功率密度对消失模模样微波干燥效果的影响[J].特种铸造及有色合金,2013,33(02):164-166.

Xu Yuepeng1, Zhao Jianhua1, Zeng Fanyong1, et al. Effect of Heating Power Density on the Microwave Drying Foam Pattern. [J]. Special Casting & Nonferrous Alloys 33(2):164-166(2013)
[1]徐越鹏,赵建华,曾凡勇,王玄.加热功率密度对消失模模样微波干燥效果的影响[J].特种铸造及有色合金,2013,33(02):164-166. DOI： 10.15980/j.tzzz.2013.02.033.

Xu Yuepeng1, Zhao Jianhua1, Zeng Fanyong1, et al. Effect of Heating Power Density on the Microwave Drying Foam Pattern. [J]. Special Casting & Nonferrous Alloys 33(2):164-166(2013) DOI： 10.15980/j.tzzz.2013.02.033.

摘要

以失重率、收缩率和感官评价为指标

对比分析了在不同功率密度下消失模的微波干燥特性。结果表明

同一功率密度下

失重率开始随时间递增

而后趋于稳定;不同功率密度下

干燥速率随功率密度的增加而增大

但更容易出现涂层开裂、泡沫熔化等缺陷

失重率和时间的关系满足类抛物线曲线;经最小二乘法回归分析失重率与时间、功率密度的关系

得出了最合适的功率密度范围为26.0～30.5W·L-1。

Abstract

By investigating weight loss rate

shrinkage and sensory evaluation

the microwave drying behaviors of foam pattern were analyzed under different heating power densities.The results show that with the increase of heating time

weight loss rate is increased gradually to be stable at a given power density.In addition

drying rate is increased with the increase of power density

which results in the more easy formation of defects including coating crack and pattern melt.The relationship between weight loss rate and power density follows parabolic characteristics.Based on the regression analysis of least square method

the suitable power density is presented in ranged from 26to 30.5W/L after comprehensive analysis.