供应氮化硅钩

<p><span style="font-size: 12pt; font-family: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">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 style="font-size: 12pt; font-family: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-bidi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"> <p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span style="font-size: 12pt;" lang="EN-US"><span style="font-family: Times New Roman;">Si₃ N₄(RB)</span></span></p> <p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span style="font-size: 12pt; font-family: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">体积密度</span><span style="font-size: 12pt;" lang="EN-US"><span style="font-family: Times New Roman;">(g/cm³)<span style="mso-spacerun: yes;">   </span>2.5-2.6 </span></span></p> <p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span style="font-size: 12pt; font-family: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">硬度</span><span style="font-size: 12pt;" lang="EN-US"><span style="font-family: Times New Roman;">(HRA)<span style="mso-spacerun: yes;">         </span>80-86 </span></span></p> <p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span style="font-size: 12pt; font-family: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">抗弯强度</span><span style="font-size: 12pt;" lang="EN-US"><span style="font-family: Times New Roman;">(MPa) <span style="mso-spacerun: yes;">    </span>160-250 </span></span></p> <p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span style="font-size: 12pt; font-family: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">气孔率</span><span style="font-size: 12pt;" lang="EN-US"><span style="font-family: Times New Roman;">%<span style="mso-spacerun: yes;">          </span>10-15 </span></span></p> <p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span style="font-size: 12pt; font-family: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">热膨胀系数</span><span style="font-size: 12pt;" lang="EN-US"><span style="font-family: Times New Roman;"><span style="mso-spacerun: yes;">       </span>2.6×10^-6/</span></span><span style="font-size: 12pt; font-family: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">℃</span><span style="font-size: 12pt;" lang="EN-US"></span></p> <p> </p> </span></p> <p> </p>