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现代工业中,在金属尤其是在黑色金属表面镀上锌防锈层已经很普遍。其中有热镀锌法、电镀锌法、液态金属喷射法等,但上述方法都需大量资金。尤其是对采用连续操作所制造的大量长型产品(如钢筋或预应力钢材)而言,更是费时费力。为了更经济且效果更好地提高轧制钢材尤其是建筑用钢筋、预应力钢材的耐腐蚀性,西
In modern industry, it is commonplace to apply a zinc coating on metal, especially on ferrous metal surfaces. Among them are hot-dip galvanizing method, electro-galvanizing method, liquid metal spraying method, etc., but the above methods require a large amount of money. In particular, it is time-consuming and labor intensive for a large number of long products (such as steel or prestressed steel) manufactured by continuous operation. In order to be more economical and effective to improve the rolled steel, especially the construction of steel, pre-stressed steel corrosion resistance, West