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发明公开
CN109970389A 一种不透性石墨管的制备方法 无效 - 驳回

一种不透性石墨管的制备方法
摘要：
本发明属于石墨管制备技术领域，具体涉及一种不透性石墨管的制备方法。该方法将固化剂与树脂混匀，待树脂表面起膜后将树脂与石墨粉混匀进行改性，待石墨粉与固化树脂完全凝固后改性完成得到改性石墨粉，将改性石墨粉进行挤压成为石墨管坯体，挤压后进行热处理，热处理完成后得到不透性石墨管。采用本发明制得的不透性石墨管的孔洞、裂纹率大大降低，提高了产品质量。
摘要（英）：

The invention belongs to the technical field of graphite tube preparation, and in particular relates to a preparation method of an impervious graphite tube. According to the method, a curing agent anda resin are evenly mixed, after a film surface is formed, the resin and a graphite powder are evenly mixed for modifying, after the graphite powder and the curing resin are completely solidified, themodification is completed, the modified graphite powder is obtained, the modified graphite powder is extruded into a graphite tube body, the heat treatment is performed after extrusion, and the impervious graphite tube is obtained after the heat treatment is completed. The porosity and the crack rate of the impervious graphite tube prepared by the method are greatly reduced, and the product quality is improved.

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