&nbsp;<span style="font-size:14pt;font-family:宋體;">鋁制品表面自動(dòng)拉絲機(jī)、餐具拋光機(jī)、刀餐自動(dòng)拋光機(jī)、<span style="font-size:14pt;font-family:宋體;">平面自動(dòng)水磨機(jī)、<span style="font-size:14pt;font-family:宋體;">金屬拉絲機(jī)、沖壓件去毛刺機(jī)</span></span></span> <p style="text-indent:21pt;"> <span style="font-size:14pt;font-family:宋體;">其主要原料為硅砂與碳素，輔助材料有木屑、**與回爐料。</span><span style="font-size:14pt;"></span> </p> <p style="text-indent:21pt;"> <span style="font-size:14pt;">1</span><span style="font-size:14pt;font-family:宋體;">、硅砂（</span><span style="font-size:14pt;">SiO2</span><span style="font-size:14pt;font-family:宋體;">）又稱(chēng)石英砂。冶煉</span><span style="font-size:14pt;">SiC</span><span style="font-size:14pt;font-family:宋體;">常用河砂，海砂及脈石英。河砂及海砂用來(lái)治煉黑色</span><span style="font-size:14pt;">SiC</span><span style="font-size:14pt;font-family:宋體;">，脈石英用來(lái)治煉綠色</span><span style="font-size:14pt;">SiC</span><span style="font-size:14pt;font-family:宋體;">。硅砂的粒度大小影響</span><span style="font-size:14pt;">SiC</span><span style="font-size:14pt;font-family:宋體;">的產(chǎn)量，也是電能消耗的重要因素，因此要選用質(zhì)量合適的較細(xì)粒度的硅砂。</span><span style="font-size:14pt;"></span> </p> <p style="text-indent:21pt;"> <span style="font-size:14pt;">2</span><span style="font-size:14pt;font-family:宋體;">、碳素</span><span style="font-size:14pt;"> </span><span style="font-size:14pt;font-family:宋體;">提供生成</span><span style="font-size:14pt;">SiC</span><span style="font-size:14pt;font-family:宋體;">反應(yīng)的碳，常用石油焦炭、瀝青焦炭及低灰分的無(wú)煙煤。</span><span style="font-size:14pt;"></span> </p> <p style="text-indent:21pt;"> <span style="font-size:14pt;">3</span><span style="font-size:14pt;font-family:宋體;">、木粉</span><span style="font-size:14pt;"> </span><span style="font-size:14pt;font-family:宋體;">（硬木屑）為了增加透氣性、擴(kuò)大反應(yīng)區(qū)。</span><span style="font-size:14pt;"></span> </p> <span style="font-size:14pt;font-family:'Times New Roman';">4</span><span style="font-size:14pt;font-family:宋體;">、**</span><span style="font-size:14pt;font-family:'Times New Roman';"> </span><span style="font-size:14pt;font-family:宋體;">含量在</span><span style="font-size:14pt;font-family:'Times New Roman';">97%~99%</span><span style="font-size:14pt;font-family:宋體;">，粒度小于</span><span style="font-size:14pt;font-family:'Times New Roman';">2mm</span><span style="font-size:14pt;font-family:'Times New Roman';">.</span><span style="font-size:14pt;font-family:宋體;">。在冶煉綠色</span><span style="font-size:14pt;font-family:'Times New Roman';">SiC</span><span style="font-size:14pt;font-family:宋體;">時(shí)加入可加速排除雜質(zhì)，起凈化劑和催化作用。冶煉黑色</span><span style="font-size:14pt;font-family:'Times New Roman';">SiC</span><span style="font-size:14pt;font-family:宋體;">時(shí)不使用</span>