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钢铁件热浸镀铝是使钢铁具有耐大气和介质(如海水、有机酸等)腐蚀,抗高温氧化和硫蚀,耐磨及美观等集多种功能于一体的表面技术。新技术不采用由有毒氟盐和氯盐组成的覆盖熔剂,排除了旧工艺中的污染环境、劳动条件差的严重缺点,具有镀层质量好、成本低(省去覆盖熔剂和中和试剂),污染小等系列优点,为加速热浸镀铝工艺的发展起了重大推进作用。目前,国内热漫镀铝工艺主要应用干钢管,公路护拦,输电钢架,灯杆、烟囱、马弗罐、铁锅等产品中。
Hot-dip aluminized steel is a surface technology that integrates a variety of functions such as corrosion resistance to atmospheric and media (such as seawater, organic acids, etc.), high temperature oxidation and sulfur corrosion, abrasion resistance and aesthetics. The new technology does not use the cover flux composed of toxic fluoride salt and chlorine salt, which eliminates the serious pollution of the old environment, poor working conditions, good coating quality and low cost (eliminating the need for covering flux and neutralizing reagent) Pollution is a series of advantages, in order to accelerate the development of hot dip aluminizing process played a significant role in promoting. At present, the main application of domestic hot aluminum plating dry steel pipe, highway guardrail, steel transmission frame, lamppost, chimney, muffle pot, wok and other products.