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 <h1 title="小知识 | 木材的含水率" class="p102-info-blk-title">
   小知识 | 木材的含水率 
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  <span>来源：</span> 
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  <span>发布日期：2022-08-10</span> 
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   <p>
    <span style="color:#656465;font-family:system-ui, -apple-system, BlinkMacSystemFont, &quot;font-size:16px;letter-spacing:1.5px;text-align:justify;white-space:normal;background-color:#FEFEFE;line-height:2.5;">自然生长的树木、伐倒的木材均含有一定的水分。这些水分会直接影响木材的诸多性能以及利用的质量，如密度、强度、尺寸稳定性、耐久性、加工性等等。因此，了解木材中的水分是十分重要的。</span>
</p>
<p>
    <span style="color:#656465;font-family:system-ui, -apple-system, BlinkMacSystemFont, &quot;font-size:16px;letter-spacing:1.5px;text-align:justify;white-space:normal;background-color:#FEFEFE;line-height:2.5;"><br>
</span>
</p>
<p>
    <span style="color:#656465;font-family:system-ui, -apple-system, BlinkMacSystemFont, &quot;font-size:17px;letter-spacing:1.5px;text-align:justify;white-space:normal;background-color:#FEFEFE;"></span>
</p>
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    <section style="margin:10px 0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;text-align:center;visibility:visible;">
        <section style="margin:0px;padding:4px 15px 4px 4px;outline:0px;max-width:100%;box-sizing:border-box;overflow-wrap:break-word !important;border-radius:20px 0px 20px 20px;background-color:#E5F3D0;display:inline-block;visibility:visible;">
            <section style="margin:0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;display:flex;justify-content:center;align-items:center;visibility:visible;">
                <section style="margin:0px;padding:3px 7px;outline:0px;max-width:100%;box-sizing:border-box;overflow-wrap:break-word !important;background-color:#A3DE7F;border-radius:50%;display:inline-block;visibility:visible;">
                    <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;visibility:visible;box-sizing:border-box !important;">
                        <span data-form="0" data-num="1" style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#FFFFFF;visibility:visible;box-sizing:border-box !important;">01</span>
                    </p>
                </section>
                <section style="margin:0px 0px 0px 5px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;visibility:visible;">
                    <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;letter-spacing:2px;visibility:visible;box-sizing:border-box !important;">
                        <strong style="margin:0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;visibility:visible;"><span style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#4D8E00;visibility:visible;box-sizing:border-box !important;">木材中水分</span></strong>                        <span style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#4D8E00;visibility:visible;box-sizing:border-box !important;"></span>
                    </p>
                </section>
            </section>
        </section>
    </section>
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<section style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#000000;font-size:medium;white-space:normal;visibility:visible;box-sizing:border-box !important;overflow-wrap:break-word !important;">
    <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;visibility:visible;box-sizing:border-box !important;">
        <br>
    </p>
</section>
<section data-style-id="26253" data-support="96编辑器" style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#000000;font-size:medium;white-space:normal;visibility:visible;box-sizing:border-box !important;overflow-wrap:break-word !important;">
    <section style="margin:10px 0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;text-align:right;visibility:visible;">
        <section style="margin:0px;padding:15px;outline:0px;max-width:100%;box-sizing:border-box;overflow-wrap:break-word !important;border-width:2px;border-style:solid;border-color:#94E19D;visibility:visible;">
            <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;text-align:justify;visibility:visible;box-sizing:border-box !important;">
                <span style="margin:0px;padding:0px;outline:0px;max-width:100%;font-size:17px;visibility:visible;box-sizing:border-box !important;"><span style="font-size:16px;line-height:2.5;">储存在细胞腔和细胞壁中的有</span><strong style="margin:0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;visibility:visible;"><span style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#0052FF;visibility:visible;box-sizing:border-box !important;font-size:16px;line-height:2.5;">自由水</span></strong>
                <span style="font-size:16px;line-height:2.5;">和</span><strong style="margin:0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;visibility:visible;"><span style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#0052FF;visibility:visible;box-sizing:border-box !important;font-size:16px;line-height:2.5;">吸着水</span></strong>
                    <span style="font-size:16px;line-height:2.5;">两类。</span>
                        </span>
            </p>
            <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;text-align:justify;visibility:visible;box-sizing:border-box !important;">
                <br>
            </p>
            <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;text-align:justify;visibility:visible;box-sizing:border-box !important;">
                <span style="margin:0px;padding:0px;outline:0px;max-width:100%;font-size:17px;visibility:visible;box-sizing:border-box !important;"><span style="font-size:16px;line-height:2.5;">——</span><strong style="margin:0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;visibility:visible;"><span style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#0052FF;visibility:visible;box-sizing:border-box !important;font-size:16px;line-height:2.5;">自由水</span></strong>
                <span style="font-size:16px;line-height:2.5;">指存在于细胞腔和细胞间隙内的水分，又称“ </span><strong style="margin:0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;visibility:visible;"><span style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#0052FF;visibility:visible;box-sizing:border-box !important;font-size:16px;line-height:2.5;">毛细管水</span></strong>                    <span style="font-size:16px;line-height:2.5;">”。其含量多少与木材孔隙度有关，孔隙多，自由水含量高。它与细胞壁物质无密切关系，仅影响木材的密度、耐久性、燃烧性、传导性等，对木材的胀缩性和强度等硬核性能没有影响。</span> </span>
            </p>
            <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;text-align:justify;box-sizing:border-box !important;">
                <br>
            </p>
            <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;text-align:justify;box-sizing:border-box !important;">
                <span style="margin:0px;padding:0px;outline:0px;max-width:100%;font-size:17px;box-sizing:border-box !important;"><span style="font-size:16px;line-height:2.5;">——</span><strong style="margin:0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;"><span style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#0052FF;box-sizing:border-box !important;font-size:16px;line-height:2.5;">吸着水</span></strong>
                <span style="font-size:16px;line-height:2.5;">指存在于细胞壁中的水分，也称“ </span><strong style="margin:0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;"><span style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#0052FF;box-sizing:border-box !important;font-size:16px;line-height:2.5;">胞壁水</span></strong>                    <span style="font-size:16px;line-height:2.5;">”。它与胞壁物质结合，受到来自细胞壁物质的吸附作用。这部分水因直接影响木材的胀缩性、强度以及其他各种性能，因而在木材利用中，需对其含量给予特别关注。</span> </span>
            </p>
        </section>
        <section style="margin:-12px 0px 0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;">
        </section>
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    <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;box-sizing:border-box !important;">
        <br>
    </p>
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<section data-style-id="25906" data-support="96编辑器" style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#000000;font-size:medium;white-space:normal;box-sizing:border-box !important;overflow-wrap:break-word !important;">
    <section style="margin:10px 0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;text-align:center;">
        <section style="margin:0px;padding:4px 15px 4px 4px;outline:0px;max-width:100%;box-sizing:border-box;overflow-wrap:break-word !important;border-radius:20px 0px 20px 20px;background-color:#E5F3D0;display:inline-block;">
            <section style="margin:0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;display:flex;justify-content:center;align-items:center;">
                <section style="margin:0px;padding:3px 7px;outline:0px;max-width:100%;box-sizing:border-box;overflow-wrap:break-word !important;background-color:#A3DE7F;border-radius:50%;display:inline-block;">
                    <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;box-sizing:border-box !important;">
                        <span data-form="0" data-num="2" style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#FFFFFF;box-sizing:border-box !important;">02</span>
                    </p>
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                <section style="margin:0px 0px 0px 5px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;">
                    <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;letter-spacing:2px;box-sizing:border-box !important;">
                        <strong style="margin:0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;"><span style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#4D8E00;box-sizing:border-box !important;">木材含水量的表示及测定方法</span></strong>                        <span style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#4D8E00;box-sizing:border-box !important;"></span>
                    </p>
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            </section>
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    <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;box-sizing:border-box !important;">
        <br>
    </p>
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<section data-style-id="26253" data-support="96编辑器" style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#000000;font-size:medium;white-space:normal;box-sizing:border-box !important;overflow-wrap:break-word !important;">
    <section style="margin:10px 0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;text-align:right;">
        <section style="margin:0px;padding:15px;outline:0px;max-width:100%;box-sizing:border-box;overflow-wrap:break-word !important;border-width:2px;border-style:solid;border-color:#94E19D;">
            <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;text-align:justify;box-sizing:border-box !important;">
                <span style="margin:0px;padding:0px;outline:0px;max-width:100%;font-size:16px;box-sizing:border-box !important;line-height:2.5;">通常用木材的干、湿来描述其含有水分的多与少，而生产、研究领域则通常用含水率来表示木材的水分含量。</span>
            </p>
            <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;text-align:justify;box-sizing:border-box !important;">
                <br>
            </p>
            <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;text-align:justify;box-sizing:border-box !important;">
                <span style="margin:0px;padding:0px;outline:0px;max-width:100%;font-size:17px;box-sizing:border-box !important;"><strong style="margin:0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;"><span style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#0052FF;box-sizing:border-box !important;font-size:16px;line-height:2.5;">木材中水分的质量和木材自身绝干质量之比，即为木材的绝对含水率</span></strong>
                <span style="font-size:16px;line-height:2.5;">（用%表示），习惯也称“ </span><strong style="margin:0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;"><span style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#0052FF;box-sizing:border-box !important;font-size:16px;line-height:2.5;">含水率</span></strong>                    <span style="font-size:16px;line-height:2.5;">”。其表达或计算公式为：木材含水率（%）=【含水质量（g）-全干质量（g）】/全干质量（g）×100%</span> </span>
            </p>
            <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;text-align:justify;box-sizing:border-box !important;">
                <br>
            </p>
            <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;text-align:justify;box-sizing:border-box !important;">
                <span style="margin:0px;padding:0px;outline:0px;max-width:100%;font-size:17px;box-sizing:border-box !important;"><span style="font-size:16px;line-height:2.5;">木材含水率的检测方法有多种，其中常用的是</span><strong style="margin:0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;"><span style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#0052FF;box-sizing:border-box !important;font-size:16px;line-height:2.5;">烘干法</span></strong>                <span style="font-size:16px;line-height:2.5;">、</span><span style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#0052FF;box-sizing:border-box !important;font-size:16px;line-height:2.5;"><strong style="margin:0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;">电测或感应法</strong></span>                <span style="font-size:16px;line-height:2.5;">。</span> </span>
            </p>
            <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;text-align:justify;box-sizing:border-box !important;">
                <br>
            </p>
            <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;text-align:justify;box-sizing:border-box !important;">
                <span style="margin:0px;padding:0px;outline:0px;max-width:100%;font-size:17px;box-sizing:border-box !important;"><strong style="margin:0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;"><span style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#0052FF;box-sizing:border-box !important;font-size:16px;line-height:2.5;">烘干法又称质量法</span></strong>
                <span style="font-size:16px;line-height:2.5;">，规范的检测可按GB/T 1931-2009《木材含水率测定方法》进行。其测定主要步骤为：制取20mm×20mm×20mm的试件，称取其含水质量，然后放入可调节温度和气体对流的恒温干燥箱，先低温烘，后逐渐升温至103℃±2℃，并保持恒温，烘至试件全干（烘6小时后，每相隔2小时称量，试件质量差不超过0.5%为准），拿出置于干燥器冷却至室温后，称其全干质量。按上述计算公式计算获得木材含水率，精确至0.1%。 </span>
                    </span>
            </p>
            <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;text-align:justify;box-sizing:border-box !important;">
                <br>
            </p>
            <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;text-align:justify;box-sizing:border-box !important;">
                <span style="margin:0px;padding:0px;outline:0px;max-width:100%;font-size:17px;box-sizing:border-box !important;"><strong style="margin:0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;"><span style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#0052FF;box-sizing:border-box !important;font-size:16px;line-height:2.5;">电测法</span></strong>
                <span style="font-size:16px;line-height:2.5;">是根据木材含水率与木材导电性存在一定关系的原理来测定其含水率。具有简便快捷的特点，可不破坏木材试样，适合生产现场的初步测定和评价。插针式、感应式等，因测定或感应的深度受到限制，测定范围也有限（7%~23%），总体精度偏低，应作木材温度和密度修正，特别是涉及争议时需要用</span><span style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#0052FF;box-sizing:border-box !important;font-size:16px;line-height:2.5;"><strong style="margin:0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;">烘干法</strong></span>
                    <span style="font-size:16px;line-height:2.5;">进行仲裁。</span>
                        </span>
            </p>
        </section>
        <section style="margin:-12px 0px 0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;">
        </section>
    </section>
</section>
<section style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#000000;font-size:medium;white-space:normal;box-sizing:border-box !important;overflow-wrap:break-word !important;">
    <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;box-sizing:border-box !important;">
        <br>
    </p>
</section>
<section data-style-id="25906" data-support="96编辑器" style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#000000;font-size:medium;white-space:normal;box-sizing:border-box !important;overflow-wrap:break-word !important;">
    <section style="margin:10px 0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;text-align:center;">
        <section style="margin:0px;padding:4px 15px 4px 4px;outline:0px;max-width:100%;box-sizing:border-box;overflow-wrap:break-word !important;border-radius:20px 0px 20px 20px;background-color:#E5F3D0;display:inline-block;">
            <section style="margin:0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;display:flex;justify-content:center;align-items:center;">
                <section style="margin:0px;padding:3px 7px;outline:0px;max-width:100%;box-sizing:border-box;overflow-wrap:break-word !important;background-color:#A3DE7F;border-radius:50%;display:inline-block;">
                    <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;box-sizing:border-box !important;">
                        <span data-form="0" data-num="3" style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#FFFFFF;box-sizing:border-box !important;">03</span>
                    </p>
                </section>
                <section style="margin:0px 0px 0px 5px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;">
                    <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;letter-spacing:2px;box-sizing:border-box !important;">
                        <strong style="margin:0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;"><span style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#4D8E00;box-sizing:border-box !important;">木材平衡含水率</span></strong>                        <span style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#4D8E00;box-sizing:border-box !important;"></span>
                    </p>
                </section>
            </section>
        </section>
    </section>
</section>
<section style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#000000;font-size:medium;white-space:normal;box-sizing:border-box !important;overflow-wrap:break-word !important;">
    <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;box-sizing:border-box !important;">
        <br>
    </p>
</section>
<section data-style-id="26253" data-support="96编辑器" style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#000000;font-size:medium;white-space:normal;box-sizing:border-box !important;overflow-wrap:break-word !important;">
    <section style="margin:10px 0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;text-align:right;">
        <section style="margin:0px;padding:15px;outline:0px;max-width:100%;box-sizing:border-box;font-family:system-ui, -apple-system, BlinkMacSystemFont, &quot;letter-spacing:0.544px;background-color:#FFFFFF;border-width:2px;border-style:solid;border-color:#94E19D;overflow-wrap:break-word !important;">
            <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;text-align:justify;box-sizing:border-box !important;">
                <span style="margin:0px;padding:0px;outline:0px;max-width:100%;font-size:17px;box-sizing:border-box !important;"><span style="font-size:16px;line-height:2.5;">木材的</span><strong style="margin:0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;"><span style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#0052FF;box-sizing:border-box !important;font-size:16px;line-height:2.5;">平衡含水率</span></strong>
                <span style="font-size:16px;line-height:2.5;">指木材长期暴露在一定温度和湿度的环境空气中，最终会达到相对恒定的状态，即木材蒸发到空气中的水分与木材吸收空气中的水分大致相等，此刻木材中的水分就达到一种动态的平衡，这时木材的含水率即为平衡含水率。在大气中达到的平衡含水率，也称为“ </span><strong style="margin:0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;"><span style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#0052FF;box-sizing:border-box !important;font-size:16px;line-height:2.5;">气干含水率</span></strong>                    <span style="font-size:16px;line-height:2.5;">”。</span> </span>
            </p>
            <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;text-align:justify;box-sizing:border-box !important;">
                <br>
            </p>
            <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;text-align:justify;box-sizing:border-box !important;">
                <span style="margin:0px;padding:0px;outline:0px;max-width:100%;font-size:17px;box-sizing:border-box !important;"><strong style="margin:0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;"><span style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#0052FF;box-sizing:border-box !important;font-size:16px;line-height:2.5;">木材平衡含水率就随空气中温度、湿度变化而变化的，并非是固定不变的数值。</span></strong>
                <span style="font-size:16px;line-height:2.5;">它随地区、季节、天气等因素而异。如浙江的年平均平衡含水率为15.5%，北京为10.6%，吉林12.5%。 </span><span style="margin:0px;padding:0px;outline:0px;max-width:100%;color:#0052FF;box-sizing:border-box !important;font-size:16px;line-height:2.5;"><strong style="margin:0px;padding:0px;outline:0px;max-width:100%;box-sizing:border-box !important;overflow-wrap:break-word !important;">雨季会高出2%~3%，秋冬时节因干燥会低2%~3%。</strong></span>                    </span>
            </p>
            <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;text-align:justify;box-sizing:border-box !important;">
                <br>
            </p>
            <p style="margin-top:0px;margin-bottom:0px;padding:0px;outline:0px;max-width:100%;clear:both;min-height:1em;text-align:justify;box-sizing:border-box !important;">
                <span style="margin:0px;padding:0px;outline:0px;max-width:100%;font-size:16px;box-sizing:border-box !important;line-height:2.5;">为确保制成的木地板、木家具、木门等产品不易变形，必须使木材干燥至标准范围内，与该地区的平衡含水率相适应。故平衡含水率在木材使用上具有极其重要的作用，尤其是实木地板用于地采暖环境条件时，更应将其含水率作严格管控，以确保使用过程少变形、少开裂、少收缩。</span>
            </p>
            <div>
            </div>
            <p class="img-block" style="text-align:center;">
                <img align="center" alt="08ab78affa6441d4a01fbc4f4eceaaab_23" src="http://www.gxhongkai.com/resource/images/1cb9a9ee35244ac1a42d98e1e3ab1cd3_41.jpg" title="08ab78affa6441d4a01fbc4f4eceaaab_23">
            </p>
            <p class="img-block" style="text-align:center;">
                <span style="font-size:12px;color:#1A1A1A;font-family:&quot;white-space:normal;background-color:#FFFFFF;"><span style="font-size:14px;color:#999999;">摘自</span><span style="font-size:14px;color:#808080;">《家具质量检验及质量评定》（QB T 1951.1-2010 ）附录</span></span>
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