据统计,目前全世界每年因钢铁腐蚀而造成的经济损失达1500亿美元以上,因腐蚀而损失的钢材占全世界钢铁产量的10～20％左右。在我国每年因钢铁腐蚀造成的直接经济损失也约30亿元左右。为了减少钢铁因腐蚀而受的重大损失,国家把钢铁除锈钝化新技术列入“七五”计划期间重点推广项目。这是一项由我国首创,是当前国际上钢铁除锈防锈效果最好的最新技术。目前,国内外的钢铁除锈,仍然沿袭手 According to statistics, the annual economic losses caused by steel corrosion in the world are over 150 billion U.S. dollars each year. The steel products lost by corrosion account for 10-20% of the world’s steel output. In our country, the direct economic loss caused by the steel corrosion is about 3 billion yuan each year. In order to reduce the significant loss of steel due to corrosion, the state listed the new technology of steel derusting and passivation as key promotion projects during the “Seventh Five-Year Plan” period. This is a first by our country, is the current international anti-rust steel rust best of the latest technology. At present, domestic and foreign steel rust, still follow the hand