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试验表明：用铝矾土和石英粉作为耐火材料配制硅溶胶复合涂料时，铝矾土与石英粉最适宜重量比为１∶５～１∶４，粉液比为１．８０～１．８５
The results show that the best weight ratio of bauxite and quartz powder is 1: 5 ~ 1: 4 and the ratio of powder to liquid is 1.80 ~ 1.85 when silica sol composite coating is prepared by using bauxite and quartz powder as refractory materials.