影响热压干燥中单板温度分布的双因子交互作用  

Effect of Two-factor Interaction on Veneer Temperature Distribution during Hot-press Drying

作　　者：韩晨静[1,2] 吕建雄[2] 徐金梅[1,2] 

机构地区：[1]中国林业科学研究院林业新技术研究所,北京100091 [2]中国林业科学研究院木材工业研究所国家林业局木材科学与技术重点实验室,北京100091

出　　处：《林业机械与木工设备》2014年第6期13-17,共5页Forestry Machinery & Woodworking Equipment

基　　金：林业公益性行业科研专项经费项目"桉树胶合板产业升级关键技术"(201104003-02);中国林科院林业新技术研究所基本科研业务费专项"单板初含水率分选对干燥质量影响的研究"(CAFINT2012C03)

摘　　要：选择压力(P)、热压板温度(T)、单板张数(N)三个因子各3个水平,进行完全随机试验,测定每张单板的温度变化,以靠近热压板处单板与中间单板的温差△T为指标,分析双因子交互作用对预干单板温度分布的影响。结果表明:在热压干燥初始、中间、最终三个阶段,各因子以及二因子、三因子之间的交互作用均对单板的温度分布有显著影响。①初始阶段,不同热压板温度下压力越大△T越小,不同压力下单板张数越少△T越小,不同热压板温度下单板张数越少△T越小。②中间阶段,对于不同压力,热压板温度为120℃下的△T最小;不同压力下,单板张数为5时的△T最小;不同单板张数下,120℃时的△T最小;③最终阶段,不同压力下热压板温度越低△T越小;不同压力下单板张数越少△T越小;对于不同单板张数,120℃时△T最小。In this study, 3 levels of pressure（P）, platen temperature（T）, and veneers number（N）are selected for completely random tests to test the temperature change of each veneer , with the taking temperature difference△T between the veneer next to the platen and veneer in the middle as an index, the effect of two-factor interaction on temperature distribution of pre-drying veneer is analyzed, with the result showing： at initial stage, middle stage, and end stage, the interaction between all factors; two factors and three factors has a significant effect of the temperature distribution of veneer.①At the initial stage, the greater the pressure at different platen temperature is , the smaller△T is.②At the middle stage, as for pressure,△T is the smallest when the platen temperature is 120℃; under different pressure,△T is the smallest when the number of veneers is 5; in the case of different numbers of veneers,△T is the smallest at 120℃.③at the final stage, under different pressure, the lower the platen temperature is, the smaller△T is; under different pressure, the smaller the number of veneers is, the smaller△T is; in the case of different numbers of veneers,△T is the smallest at 120℃.

关 键 词：热压干燥 单板 温度分布 双因子交互作用 

分 类 号：S781.37[农业科学—木材科学与技术]