文献类型：期刊文献

中文题名：浸胶法杨木单板层积材的热压传热分析

英文题名：Heat Transfer in Resin Impregnated Poplar LVL during Hot-pressing

作者：刘焕荣[1,2] 柴宇博[1,2] 刘君良[1,2]

第一作者：刘焕荣

机构：[1]中国林科院木材工业研究所;[2]国家林业局木材科学与技术重点实验室

年份：2008

卷号：22

期号：1

起止页码：26-28

中文期刊名：木材工业

外文期刊名：China Wood Industry

收录：CSTPCD;;北大核心:【北大核心2004】；

语种：中文

中文关键词：酚醛树脂;单板层积材;热压;传热;施胶方式

外文关键词：PF resin; laminated veneer lumber; hot-pressing; heat transfer; resin application methods

分类号：S792.11;TS65

摘要：采用热电偶法测量杨木单板层积材在热压过程中表层和芯层的温度的变化规律,讨论了施胶方式以及浸胶量和热压温度、压力对板坯在热压过程中传热的影响。结果表明:施胶量相当时,浸胶方式在快速升温阶段的升温速度较快;同时随着浸胶量的增加板坯传热速度增加,但浸胶量不影响板坯的总热压时间。
Better understanding of heat transfer and resin curing during hot pressing will help optimize the wood composite manufacturing process in increasing productivity and improving product quality. Electrical-thermocouples were used in this study to investigate the effects of resin application methods, resin content, hot-pressing temperature, and pressure in hot-pressing poplar laminated veneer lumber （LVL）. The results indicated that during the initial pressing stage, the internal temperature increased more rapidly by using a resin impregnation method than a resin spread method. It was found that higher resin content accelerated heat penetration towards the core. However, the resin content didn＇t significantly affect total hot-pressing time.