铝-石墨复合材料制造中的突出问题是铝液与石墨的润湿能力很差,为此大多在工艺上采取措施,如石墨表面喷涂Ti-B,Ni或Cu涂层,或采用流变铸造等。然而这些措施使得工艺复杂、成本提高,因而推广应用受到限制。为改善铝液与石墨的润湿能力,有必要深入研究铝液对石墨的润湿过程。国内外这方面报道甚少,而且所报道的结果差别较大。我们通过长时间的保温试验,仔细地研究了不同温度下铝液对石墨的润湿过程,发现了一些新的现象。 The outstanding problem in the manufacture of aluminum-graphite composites is that the wetting ability of aluminum liquid and graphite is very poor. Most of the measures are taken on the process, such as spraying Ti-B, Ni or Cu coating on graphite surface or using rheological casting Wait. However, these measures make the process complicated and costly, so the promotion and application are limited. In order to improve the wetting ability of aluminum liquid and graphite, it is necessary to study the wetting process of graphite liquid by aluminum liquid. There are few reports at home and abroad, and the reported results vary greatly. Through a long period of thermal insulation test, we carefully studied the wetting process of graphite at different temperatures and found some new phenomena.