<p><strong><span quot;font-size: large; color: #990033; font-family: PMingLiU;">2000系列鋁合金材料</span></strong></p> <p align="left"><span quot;font-family: 新細明體;">銅在這系列中是主要金屬元素。這材料要經固溶熱處理才得到一個適中的特質；<br />而在熱處理情況下其機械性能表現相等於或有時會超過低炭鋼所表現的。在需要<br />時，材料可作人工陳化處理而增加其屈服強度，雖損失些金屬延展性，但對其拉<br />力強度並沒有多大影響。</span></p> <p align="left"><span quot;font-family: 新細明體;">2000系列合金材料並不比其它系列鋁合金料有較好的抗腐性，而在某些環境下，<br />亦可能會發生材料晶格之間腐蝕現象。所以這類合金在薄片情況下多加壓上一層<br />高純度合金或6000系列其中一種鎂合金來防止其電化學腐蝕反應。在2000系列之<br />中，2024鋁合金料或可以說是较為人所熟識及廣泛被接納為飛機選用金屬材</span> <span quot;font-family: 新細明體;">料。</span> <br /></p> <p><br /><span quot;color: #990033;">(1) (2) <br /><span quot;font-family: 新細明體;"><strong><span>2024-T351<span>這個系列合金的成份，主要包括鋁、銅、鎂、矽等金屬，其比率如下</span></span></strong></span><strong><span quot;font-family: 新細明體;"><span quot;font-family: 新細明體;">表所示︰</span></span></strong></span><span quot;font-family: 新細明體;"> </span><span quot;font-family: 新細明體;">　</span></p> <table border="1" cellspacing="1" cellpadding="1" width="625"> <tbody> <tr> <td width="7%" valign="top"><strong><span quot;font-size: xx-small; font-family: 新細明體;"> <p align="center"><span quot;font-size: small; font-family: 新細明體;">　</span></p> <strong><font lang="ZH-TW" face="新細明體" size="1"> <p align="center"><span quot;font-size: small; font-family: 新細明體;">矽</span></p> </font></strong></span> <p align="center"> </p> </strong></td> <td width="6%" valign="top"><strong><span quot;font-size: xx-small; font-family: 新細明體;"> <p align="center"><span quot;font-size: small; font-family: 新細明體;">　</span></p> <strong><font lang="ZH-TW" face="新細明體" size="1"> <p align="center"><span quot;font-size: small; font-family: 新細明體;">鐵</span></p> </font></strong></span> <p align="center"> </p> </strong></td> <td width="8%" valign="top"><strong><span quot;font-size: xx-small; font-family: 新細明體;"> <p align="center"><span quot;font-size: small; font-family: 新細明體;">　</span></p> <strong><font lang="ZH-TW" face="新細明體" size="1"> <p align="center"><span quot;font-size: small; font-family: 新細明體;">銅</span></p> </font></strong></span> <p align="center"> </p> </strong></td> <td width="9%" valign="top"><strong><span quot;font-size: xx-small; font-family: 新細明體;"> <p align="center"><span quot;font-size: small; font-family: 新細明體;">　</span></p> <strong><font lang="ZH-TW" face="新細明體" size="1"> <p align="center"><span quot;font-size: small; font-family: 新細明體;">錳</span></p> </font></strong></span> <p align="center"> </p> </strong></td> <td width="9%" valign="top"><strong><span quot;font-size: xx-small; font-family: 新細明體;"> <p align="center"><span quot;font-size: small; font-family: 新細明體;">　</span></p> <strong><font lang="ZH-TW" face="新細明體" size="1"> <p align="center"><span quot;font-size: small; font-family: 新細明體;">鎂</span></p> </font></strong></span> <p align="center"> </p> </strong></td> <td width="6%" valign="top"><strong><span quot;font-size: xx-small; font-family: 新細明體;"> <p align="center"><span quot;font-size: small; font-family: 新細明體;">　</span></p> <strong><font lang="ZH-TW" face="新細明體" size="1"> <p align="center"><span quot;font-size: small; font-family: 新細明體;">鉻</span></p> </font></strong></span> <p align="center"> </p> </strong></td> <td width="7%" valign="top"><strong><span quot;font-size: xx-small; font-family: 新細明體;"> <p align="center"><span quot;font-size: small; font-family: 新細明體;">　</span></p> <strong><font lang="ZH-TW" face="新細明體" size="1"> <p align="center"><span quot;font-size: small; font-family: 新細明體;">鎳</span></p> </font></strong></span> <p align="center"> </p> </strong></td> <td width="7%" valign="top"><strong><span quot;font-size: xx-small; font-family: 新細明體;"> <p align="center"><span quot;font-size: small; font-family: 新細明體;">　</span></p> <strong><font lang="ZH-TW" face="新細明體" size="1"> <p align="center"><span quot;font-size: small; font-family: 新細明體;">鋅</span></p> </font></strong></span> <p align="center"> </p> </strong></td> <td width="10%" valign="top"><strong><span quot;font-size: xx-small; font-family: 新細明體;"> <p align="center"><span quot;font-size: small; font-family: 新細明體;">　</span></p> <strong><font lang="ZH-TW" face="新細明體" size="1"> <p align="center"><span quot;font-size: small; font-family: 新細明體;">鈦</span></p> </font></strong></span> <p align="center"> </p> </strong></td> <td colspan="2" valign="top"><strong><span quot;font-size: xx-small; font-family: 新細明體;"> <p align="center"><span quot;font-size: small; font-family: 新細明體;">　</span></p> </span> <p align="center"><span quot;font-size: small; font-family: 新細明體;">其他</span><span quot;font-size: small; font-family: 新細明體;">(3)</span></p> </strong></td> <td width="15%" valign="top"><strong><span quot;font-size: xx-small;"> <p align="center"><span quot;font-size: small; font-family: 新細明體;">　</span></p> </span> <p align="center"><span quot;font-size: small; font-family: 新細明體;">鋁</span><span quot;font-size: small; font-family: 新細明體;">(4)</span></p> </strong></td> </tr> <tr> <td width="7%" height="21" valign="top">　</td> <td width="6%" height="21" valign="top">　</td> <td width="8%" height="21" valign="top">　</td> <td width="9%" height="21" valign="top">　</td> <td width="9%" height="21" valign="top">　</td> <td width="6%" height="21" valign="top">　</td> <td width="7%" height="21" valign="top">　</td> <td width="7%" height="21" valign="top">　</td> <td width="10%" height="21" valign="top">　</td> <td width="8%" height="21" valign="top"><span quot;font-size: xx-small; font-family: 新細明體;"><font lang="ZH-TW" face="新細明體" size="1"> <p align="center"><span quot;font-size: x-small;">每個</span></p> </font></span> <p align="center"> </p> </td> <td width="8%" height="21" valign="top"><span quot;font-size: xx-small; font-family: 新細明體;"><font lang="ZH-TW" face="新細明體" size="1"> <p align="center"><span quot;font-size: x-small;">總計</span></p> </font></span> <p align="center"> </p> </td> <td width="15%" height="21" valign="top">　</td> </tr> <tr> <td width="7%" height="21" valign="top"><span quot;font-size: xx-small;"><font size="1"> <p align="center"><span quot;font-size: x-small; font-family: Arial, Helvetica, sans-serif;">0.5</span></p> </font></span> <p align="center"> </p> </td> <td width="6%" height="21" valign="top"><span quot;font-size: xx-small;"><font size="1"> <p align="center"><span quot;font-size: x-small; font-family: Arial, Helvetica, sans-serif;">0.5</span></p> </font></span> <p align="center"> </p> </td> <td width="8%" height="21" valign="top"><span quot;font-size: xx-small;"><font size="1"> <p align="center"><span quot;font-size: x-small; font-family: Arial, Helvetica, sans-serif;">3.8-4.9</span></p> </font></span> <p align="center"> </p> </td> <td width="9%" height="21" valign="top"><span quot;font-size: xx-small;"><font size="1"> <p align="center"><span quot;font-size: x-small; font-family: Arial, Helvetica, sans-serif;">0.30-0.9</span></p> </font></span> <p align="center"> </p> </td> <td width="9%" height="21" valign="top"><span quot;font-size: xx-small;"><font size="1"> <p align="center"><span quot;font-size: x-small; font-family: Arial, Helvetica, sans-serif;">1.2-1.8</span></p> </font></span> <p align="center"> </p> </td> <td width="6%" height="21" valign="top"><span quot;font-size: xx-small;"><font size="1"> <p align="center"><span quot;font-size: x-small; font-family: Arial, Helvetica, sans-serif;">0.10</span></p> </font></span> <p align="center"> </p> </td> <td width="7%" height="21" valign="top"><span quot;font-size: xx-small;"><font size="1"> <p align="center"><span quot;font-size: x-small; font-family: Arial, Helvetica, sans-serif;">-</span></p> </font></span> <p align="center"> </p> </td> <td width="7%" height="21" valign="top"><span quot;font-size: xx-small;"><font size="1"> <p align="center"><span quot;font-size: x-small; font-family: Arial, Helvetica, sans-serif;">0.25</span></p> </font></span> <p align="center"> </p> </td> <td width="10%" height="21" valign="top"><span quot;font-size: xx-small;"><font size="1"> <p align="center"><span quot;font-size: x-small; font-family: Arial, Helvetica, sans-serif;">0.15(21)</span></p> </font></span> <p align="center"> </p> </td> <td width="8%" height="21" valign="top"><span quot;font-size: xx-small;"><font size="1"> <p align="center"><span quot;font-size: x-small; font-family: Arial, Helvetica, sans-serif;">0.05</span></p> </font></span> <p align="center"> </p> </td> <td width="8%" height="21" valign="top"><span quot;font-size: xx-small;"><font size="1"> <p align="center"><span quot;font-size: x-small; font-family: Arial, Helvetica, sans-serif;">0.15</span></p> </font></span> <p align="center"> </p> </td> <td width="15%" height="21" valign="top"><span quot;font-size: xx-small; font-family: 新細明體;"><font lang="ZH-TW" face="新細明體" size="1"> <p align="center"><span quot;font-size: x-small;">餘數</span></p> </font></span> <p align="center"> </p> </td> </tr> </tbody> </table> <p> </p> <p align="left"><span quot;font-family: 新細明體;">註:<br />(1)組合之元素性質以较高百分率表示，除非列出的是一個範圍或是较低值。</span></p> <p align="left"><span quot;font-family: 新細明體;">(2) <span>為了定出合適的數值限制，分析得來的觀察或計算數值都是依據標準規則<br /></span></span><span quot;font-family: 新細明體;"><span>(</span></span><span quot;font-family: 新細明體;">ANSI Z25.1<span>)以表示明確的範圍。</span></span></p> <p align="left"><span quot;font-family: 新細明體;">(3) <span>除了非合金外，合金內的元素所規定的份量通常在分析報告中指示出來。但如果在分析過程中懷疑有其他元素存在或有部份元素被懷疑有過量的情形，更應進一步的分析直至有證實為止。</span></span></p> <p align="left"><span quot;font-family: 新細明體;">(4) <span>不是經由精鍊過程的非合金鋁中的鋁質的含量就是其他的金屬的總量和高标准純鋁之差－其差別在於百 份</span>0.01<span>或稍多一點。（百份比的小數點後第二位）</span></span></p> <p align="left"><span quot;font-family: 新細明體;">(21) <span>较多可含有</span>0.20%<span>鋯和鈦。</span></span><span quot;font-family: 新細明體;"> </span></p> <p> </p> <p> </p> <table border="0" cellspacing="0" cellpadding="1" width="599"> <tbody> <tr> <td width="56%" valign="top"><strong></strong> <p align="left"><strong><span quot;color: #990033;">2024-T351<span quot;font-family: 新細明體;">物理特性︰</span></span></strong></p> <p align="left"><span quot;font-family: 新細明體;">傳電度（% IACS）..............................30</span></p> <p align="left"><span quot;font-family: 新細明體;">電阻度（歐姆－公分）......................5.8 <br /></span></p> <p align="left"><span quot;font-family: 新細明體;">熱膨脹系數︰</span></p> <div><span quot;font-family: 新細明體;">-58 to 68<span>℉........................</span>11.9 x 10-6</span></div> <p align="left"><span quot;font-family: 新細明體;">68 to 212<span>℉.......................</span>12.6 x 10-6</span></p> <p align="left"><span quot;font-family: 新細明體;">68 to 392<span>℉.......................</span>13.2 x 10-6</span></p> <p align="left"><span quot;font-family: 新細明體;">68 to 572<span>℉.......................</span>13.7 x 10-6</span></p> <p align="left"><span quot;font-family: 新細明體;">相對密度 </span><span quot;font-family: 新細明體;">...........................................2.78<br /></span></p> <p align="left"><span quot;font-family: 新細明體;">密度（磅每立方吋）......................</span><span quot;font-family: 新細明體;">0.100<br /></span></p> <p align="left"><span quot;font-family: 新細明體;">傳熱度（</span><span quot;font-family: 新細明體;">Btu <span>每吋每方呎）︰<br /></span></span><span quot;font-family: 新細明體;">在</span><span quot;font-family: 新細明體;">75<span>℉ </span>................................................840</span><span quot;font-family: 新細明體;"><span><br />在</span>25<span>℃</span> (CGS <span>單位</span>)............................0.29<br /></span></p> <p align="left"><span quot;font-family: 新細明體;">溶點範圍</span><span quot;font-family: 新細明體;">(<span>℉</span>).......................... 935 - 11</span>80</p> <span quot;font-family: 新細明體;"><font lang="ZH-TW" face="新細明體"> <p align="justify">　</p> </font></span> <p align="justify"> </p> </td> <td width="44%" valign="top"><strong></strong> <p align="left"><strong><span quot;color: #990033;">2024-T351<span quot;font-family: 新細明體;">機械特性︰</span></span></strong></p> <div><span quot;font-family: 新細明體;">展力強度，</span><span quot;font-family: 新細明體;">ksi...................................68 </span></div> <p align="left"><span quot;font-family: 新細明體;">屈服強度，</span><span quot;font-family: 新細明體;">ksi...................................47</span></p> <p align="left"><span quot;font-family: 新細明體;">引展</span><span quot;font-family: 新細明體;"> (2<span>吋</span> - 1/2<span>吋直徑）................</span>19%</span></p> <p align="left"><span quot;font-family: 新細明體;">引展</span><span quot;font-family: 新細明體;"> (2<span>吋</span> - 1/16<span>吋厚</span>).....................20%</span></p> <p align="left"><span quot;font-family: 新細明體;">硬度</span><span quot;font-family: 新細明體;"> (500kg<span>力，</span>10mm<span>球</span>)...............120</span></p> <p align="left"><span quot;font-family: 新細明體;">抗剪強度</span><span quot;font-family: 新細明體;">ksi........................................41</span></p> <p align="left"><span quot;font-family: 新細明體;">疲勞指數（耐力指數）</span><span quot;font-family: 新細明體;">ksi................20</span></p> <p align="left"><span quot;font-family: 新細明體;">彈性耐力，</span><span quot;font-family: 新細明體;">ksi x 103.......................10.6</span></p> <p align="justify"><span quot;font-family: 新細明體;">　</span></p> </td> </tr> </tbody> </table>