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沥青因资源丰富、价格低廉和耐腐性强而被广泛用于建筑和机械行业。同样沥青单独或加入少量填料也可用于凿岩钎具类易磨损件的表面防护。一、沥青涂料的配制 1.涂料用溶剂与沥青沥青易溶于CS_2、CCl_4、苯类等有机溶剂,但此类溶剂价格较贵。经试验,航空汽油溶解性能好,价格低廉,且涂层自然干燥迅速。可作为涂料溶剂。沥青种类较多,性质各异。为使涂层耐热性好,选择10号沥青,其软化温度可达95℃。再补充少量填料(以6～7级石棉纤维或纤维和滑石粉的混合物最好),如此可大大改善高温软化和低温易脆裂的情况。完全能满足自然气候的变化。
Asphalt is widely used in the construction and machinery industries due to its abundant resources, low cost and high corrosion resistance. The same bitumen alone or with a small amount of filler can also be used for rock drill type wear parts of the surface protection. First, the preparation of asphalt coating 1. Coatings solvent and asphalt asphalt soluble in CS_2, CCl_4, benzene and other organic solvents, but such solvents are more expensive. After testing, aviation gasoline solubility, low cost, and natural dry coating quickly. Can be used as paint solvent. Asphalt more types, different nature. To make the coating good heat resistance, choose No. 10 asphalt, the softening temperature up to 95 ℃. A small amount of filler (6 to 7 asbestos fibers or a mixture of fibers and talcum powder is best) is added to greatly improve the high-temperature softening and low-temperature brittleness. Fully able to meet the changes of the natural climate.