密实化杉木芯板复合地板组坏结构研究

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中图分类号：TS657 文献标识码：A 文章编号：2095-2953（2025）07-0046-09

Study on Lay-up Structure of Three-layer Engineered Wood Flooring with Compression Chinese Fir Core Ply

HE Xiao-yu 1 ， ZHANG Kai 1 ，SHAN Zhi-chao³，SHAO Hai-long'，HUANG Rong-feng 2

JIANG Jun 3 ， LI Hong-bo1，WANG Yan-wei1 * （1.Treessun FlooringCo.，Ltd.，Zhejiang，Huzhou Zhejiang 313OO9，China； 2.esearch Institute of Wood Industry，Chinese Academy of Forestry，Beijing 1Ooo91，China; 3.Huzhou Inspection and Testing Center，Huzhou Zhejiang 313oO9，China）

Abstract：To solvethe poor quality problem of three-layer engineered wood flooring that is easilycaused by the natural Chinese fir core ply，this research used compression Chinese fir ascore ply，carbonized bamboo composite board as face ply.Bychanging factors suchas the thickness and moisturecontent of the back plyandthe texture direction of the core ply，the research team analyzed the warping of specimens and confirmed the suitable lay up structure. The result ofresearch shows that the thickness and moisture content of back plyare positively correlated with the warping of width-direction after pressng.The back ply thicknes is negatively correlated with the warping of length-directionin theextreme environment.Whenthe inner sideof thecoreplyison the same sideof the back ply，the warping of width-direction in each test is smaller.The optimum structure was chosen，in which back plythickness is 0.8mm ，moisture content is 3.5% ，core ply adopt the side of internal face is on the same side of the back ply. In simulationuse，theflooring with compression fircore ply has beter stabilitythan thefloring with untreated fircore ply（both of them adopt the optimum structure），and the average warping degree of width-direction of the former is 46.2% of the latter. The average value of MOR and MOE are 66.6MPa and 7440MPa respectively，and it reached 2.22 times and 1.86 times of the minimum value required by the standard respectively.

Keywords：compression；ChineseFir；three-layer engineered wood flooring；carbonized bamboo composite board

根据第九次中国森林资源清查结果显示[1]，我国人工林面积达到7955万 hm2 ，蓄积量近34亿 m3 其中杉木（Cunninghamialanceolata）人工林面积近990万 hm2 ，蓄积量达7.55亿 m3 ，在我国人工林中位列第一，资源非常丰富。（剩余8473字）