世界上由于腐蚀作用而引起的金属损失,每年达两千万吨。而在化学工业中金属之腐蚀作用尤其突出,因此对有关金属的保护和抗蚀材料的研究,随着工业的发展而有日益重要的国民经济意义。铅为经济价值很高的有色金属之一,大量使用在电缆工业、蓄电池工业和机械制造工业中,并广泛用为化学工业之设备材料。在国际市场上,铅的商品价格较高。因此,在苏联,一般耐酸用的化 Metal losses in the world due to corrosion are up to 20 million tons per year. In the chemical industry, the corrosion of metals is particularly prominent, so the research on the protection and corrosion-resistant materials of metals has an increasingly important national economic significance with the development of industry. Lead is one of the non-ferrous metals with high economic value. It is widely used in the cable industry, battery industry and machinery manufacturing industry and is widely used as equipment material in the chemical industry. In the international market, the price of lead is higher. Therefore, in the Soviet Union, acidification is generally used