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钢材预处理(Prefaricotion Primer)是把钢板、型钢和管子在进入焊接车间加工之前,预先进行除锈和除氧化皮,然后涂上保护底漆。它是提高产品质量、延长产品使用寿命、减少环境污染的技术改造措施之一。一般经过预处理的钢板比手工或风动钢丝刷清理的钢板耐腐蚀寿命要长五倍。据澳大利亚腐蚀工程杂志上估计全世界金属腐蚀的损失约为全年产量的20％,即全世界每年约有一亿吨金属因腐蚀而损失,可是这个问题以前一直没有被人们所重视。钢材表面的清理和涂料工艺,国外从六十年代开始,日益被人们所重视。1969年,英国政府委托英国的腐蚀专家霍尔教授进行了15个月的调查。其他国家也进行了类似工作,分别提出了关于腐蚀所造成消耗大量资金和钢铁的报告。六十年代末,西德和西欧各国对钢材表面清理和涂料工作做了大量
Prefaricotion Primer pre-derusting and descaling steel plates, sections and tubes prior to entering the welding shop and then applying a protective primer. It is to improve product quality, extend product life, reduce environmental pollution, one of the technological transformation measures. Generally pre-treated steel than manual or pneumatic wire brush cleaning steel corrosion-resistant life expectancy five times longer. According to the Australian Journal of Corrosion Engineering, it is estimated that the world’s metal corrosion loss is about 20% of annual production, that is, about 100 million tons of metal are lost to corrosion in the world every year. However, this issue has not been valued by people before. Steel surface cleaning and coating technology, foreign countries from the sixties onwards, more and more people attach importance. In 1969, the British government commissioned a 15-month investigation by Professor Hall, a British corrosion expert. Other countries have done similar work and have separately submitted reports on the consumption of large amounts of capital and steel caused by corrosion. In the late 1960s, West Germany and Western European countries made a great deal of work on steel surface cleaning and coating