<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">　　<*n lang="EN-US">2B11<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">铝合金为铆钉用合金。<*n lang="EN-US">2B11<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">铝合金具有中等剪切强度，可热处理强化，在退火、刚淬火和热态下塑性尚好，铆钉必须在淬火后<*n lang="EN-US">2h<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">内铆接。

<*n lang="EN-US">2B11<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">化学成份：

<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">　　铝<*n lang="EN-US"> Al <*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">：余量

<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">　　硅<*n lang="EN-US"> Si <*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">：<*n lang="EN-US">≤0.50

<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">铜<*n lang="EN-US"> Cu <*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">：<*n lang="EN-US">3.8<*n style="font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">～<*n lang="EN-US">4.5

<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">　　镁<*n lang="EN-US"> Mg<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">：<*n lang="EN-US">0.40<*n style="font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">～<*n lang="EN-US">0.8

<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">　　锌<*n lang="EN-US"> Zn<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">：<*n lang="EN-US">≤0.10

<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">　　锰<*n lang="EN-US"> Mn<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">：<*n lang="EN-US">0.40<*n style="font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">～<*n lang="EN-US">0.8

<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">　　钛<*n lang="EN-US"> Ti <*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">：<*n lang="EN-US">≤0.15

<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">　　铁<*n lang="EN-US"> Fe<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">：<*n lang="EN-US"> 0.000<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">～<*n lang="EN-US">0.500

<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">　　注：单个<*n lang="EN-US">:≤0.05;<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">合计<*n lang="EN-US">:≤0.10

<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">物理性能

<*n lang="EN-US">2B11<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">力学性能

<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">　　*剪强度<*n lang="EN-US"> τ (MPa)<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">：<*n lang="EN-US">≥235

<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">　　注 <*n style="font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">：线材固溶热处理后自然时效至基本稳定状态*剪性能

<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">　　试样尺寸：所有线材直径

<*n style="font-family:宋体;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">热处理规范

<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">　　<*n lang="EN-US">1)<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">完全退火：加热<*n lang="EN-US">390<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">～<*n lang="EN-US">430<*n style="font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">℃；随材料有效厚度不同，保温时间<*n lang="EN-US">30<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">～<*n lang="EN-US">120min<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">；以<*n lang="EN-US">30<*n style="font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">～<*n lang="EN-US">50<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">℃<*n lang="EN-US">/h<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">速度随炉冷至<*n lang="EN-US">300<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">℃下，再空冷。<*n lang="EN-US">2)<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">快速退火：加热<*n lang="EN-US">350<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">～<*n lang="EN-US">370<*n style="font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">℃；随材料有效厚度不同，保温时间<*n lang="EN-US">30<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">～<*n lang="EN-US">120min<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">；空冷。<*n lang="EN-US">3)<*n style="font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">淬火和时效：淬火<*n lang="EN-US">495<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">～<*n lang="EN-US">505<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">℃，水冷；自然时效室温，<*n lang="EN-US">96h<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">。

<*n lang="EN-US">2B11<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">铝合金状态：铆钉用铝及铝合金线材 <*n lang="EN-US">(T4<*n style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">态<*n lang="EN-US">)