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作 者 ：陆从进

期 刊 ：林业科学 1988年 24卷 4期 页码：422-429

关键词：落叶松；

摘 要 ：本文讨论了高频胶合制造小径落叶松LVL作结构材的工艺和强度性能;分析了板坯内部的温升速度;比较了高频胶合无缺陷LVL和冷压LVL、单板经CCA防腐处理的LVL以及有节子、有对拼LVL的性能指标;最后为了工业化生产的需要,进行了LVL大试样静曲强度试验。结果表明,用高频介质加热法制造LVL获得了普通热板热压法达不到的快速加热效果,弥补了小径材材质差、强度低的缺点。因此用小径落叶松原木制造结构用单板层积材是可行的。

Abstract:The properties of LVL made from small logs of larix(L.gmelini Rupr.)by means of RF heating process were discussed.The rate of temperature-raise in the core of LVL was investigated.The properties of LVL made of clear veneer by RF heating method were compared with those in which veneers have butt-joints,knots,and CCA preservative,and also compared with those made by room temperature gluing process.In order to meet the requirements for industrial production of LVL,the bending strength of large size specimens were also tested.

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