木材干燥的控制过程就是控制窑内介质温度和湿度来使木材含水率降低到某一期望值的过程。
The control process of wood drying is the same as the process of controlling medium's temperature and humidity in a kiln in order to reduce water ratio of wood to some expected value.
在模型中引入与木材含水率密切相关的干缩元件,解释各层的干缩差异是产生干燥应力的源动力。
Wood drying shrinkage element introduced in the model may explain the original force of producing drying stress of shrinkage differential of different layers.
本文阐述了电导式木材含水率测定仪的基本原理、温度修正和树种修正的理论依据及电导式木材测湿仪的设计原理。
In this paper the basic principle, temperature and wood species adjustment theory, design principle of conductance wood moisture m eter is described.
静态试验研究表明:木材的含水率能引起电涡流传感器的输出电压下降,但下降的幅度甚微;
Static experimental test shows that wet wood can make tiny decline to the output voltage of eddy current sensor.
同时进行了聚氨酯胶粘剂用于高含水率木材粘接的试验。
Bonding tests of high moisture content wood with polyurethane adhesives were also carried out tentatively.
在微波真空干燥过程中,就整个板材而言,热扩散效应对木材中水分迁移的影响不大,但在局部的有限范围内,它对自动平衡木材内含水率具有显著的作用。
During the drying process of MV, for the whole board, the effect of thermal diffusion on moisture movement is not significant, but it can cause a leveling of moisture profile in a local range of wood.
研究了用木材测湿仪测量竹篾含水率的修正问题。
The modification of moisture value of bamboo strip measured with wood moisture meter was studied.
资料表明,木材经热处理改性后,尺寸稳定性增强、平衡含水率降低,且耐候性及抗生物降解能力增强。
The data shows that after heat-treatment, the dimensional stability of lumber is greatly improved, the EMC is reduced, and the weather resistant properties and durability to bio.
木材干燥控制是通过改变木材干燥窑内的温度、湿度来控制木材干燥过程的含水率。
The moisture of lumber is practically controlled by changing the temperature humidity in the lumber kiln that influences drying quality of the lumber directly.
测定并分析了不同微波加热功率、加热时间条件下木材的表面温度、干燥速度和含水率的变化规律。
The changing regularity of drying speed, moisture content and surface temperature of wood was determined and analyzed at different microwave heating power and different heating time.
木材弯曲后,控制木材的含水率是降低回弹的一个重要方面。
Controlling moisture content is one of the most important aspects to debasing reversion after bending.
当试材含水率降至FSP以下时,微波处理可以有效地减小木材内部的含水率偏差,从而减缓木材干燥应力。
Otherwise the moisture content gradient and drying stress can be reduced by MW treatment when moisture content is below FSP.
这一数学解表述了在百度试验条件下木材初含水率、干燥时间、即时含水率和相应的扩散系数之间的动态函数关系。
The dynamic function relationship among initial MC, drying time, instantaneous MC, and corresponding diffusion coefficient could be shown by this solution.
炭化木的质量指标主要有木材平衡含水率比未处理材低3%左右,干缩率小于5%,优于柚木的7%。
The main quality indexes of coking wood has wood balance moisture content than unprocessed materials low around 3%, dry shrinkage rate less than 5%, superior teak 7%.
深度炭化防腐木不易吸水,含水率低,是不开裂的木材。
Second-ranking carbonization depth anticorrosive wood not bibulous, moisture content is low, is not craze lumber.
并且含水率对各个方向木材断裂韧度的影响趋势是一致的。
TL and TR specimen crack extension direction is consistent with the orig…
并且含水率对各个方向木材断裂韧度的影响趋势是一致的。
TL and TR specimen crack extension direction is consistent with the orig…
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