<p><span quot;font-size: 12pt; font-family: 宋体; mso-ascii-font-family: ">我们采用具有抗金属铝溶液腐蚀和熔融性的氮化硅材料制成的热电偶保护管、发热体保护管、通气转子轴、升液管和其他用于铝合金铸造生产加工。</span></p> <p><span quot;font-size: 12pt; font-family: 宋体; mso-ascii-font-family: "> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><span quot;font-size: 12pt; font-family: 宋体;">材料性能简介</span></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><span quot;font-size: 12pt;" lang="EN-US"><span quot;font-family: Times New Roman;">Si₃ N₄(RB)</span></span></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><span quot;font-size: 12pt; font-family: 宋体; mso-ascii-font-family: ">体积密度</span><span quot;font-size: 12pt;" lang="EN-US"><span quot;font-family: Times New Roman;">(g/cm³)<span quot;mso-spacerun: yes;">   </span>2.5-2.6 </span></span></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><span quot;font-size: 12pt; font-family: 宋体; mso-ascii-font-family: ">硬度</span><span quot;font-size: 12pt;" lang="EN-US"><span quot;font-family: Times New Roman;">(HRA)<span quot;mso-spacerun: yes;">         </span>80-86 </span></span></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><span quot;font-size: 12pt; font-family: 宋体; mso-ascii-font-family: ">抗弯强度</span><span quot;font-size: 12pt;" lang="EN-US"><span quot;font-family: Times New Roman;">(MPa) <span quot;mso-spacerun: yes;">    </span>160-250 </span></span></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><span quot;font-size: 12pt; font-family: 宋体; mso-ascii-font-family: ">气孔率</span><span quot;font-size: 12pt;" lang="EN-US"><span quot;font-family: Times New Roman;">%<span quot;mso-spacerun: yes;">          </span>10-15 </span></span></p> <p class="MsoNormal" quot;margin: 0cm 0cm 0pt;"><span quot;font-size: 12pt; font-family: 宋体; mso-ascii-font-family: ">热膨胀系数</span><span quot;font-size: 12pt;" lang="EN-US"><span quot;font-family: Times New Roman;"><span quot;mso-spacerun: yes;">       </span>2.6×10^-6/</span></span><span quot;font-size: 12pt; font-family: 宋体; mso-ascii-font-family: ">℃</span></p> <p> </p> </span></p> <p> </p>