激光镀铝锌彩钢板概况

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前期介绍了Nd:YAG激光在铝锌板填丝焊接中的应用优势和加工机理，并对实验结果进行了分析。工艺试验表明，在合适的工艺条件下，采用填充丝激光钎焊可获得成形性好、缺陷少、性能合格的接头。汽车工业产品具有高效率、高可靠性、高集成度的要求。

汽车用热镀锌钢板是镀锌钢板中的佼佼者和佼佼者。为了满足镀锌钢板高质量、高性能的要求，近年来出现了一种新的表面处理技术——抗指纹处理
本文综述了国内外抗指纹处理技术的发展历史和研究现状。根据涂料的化学性能，介绍了涂料的种类、组成及应用实例。最后，展望了指纹图谱抗性处理的研究前景。认为耐指纹处理技术是一项具有广阔发展前景的技术，在不久的将来，镀锌钢将成为研究热点。镀锌钢由于其良好的耐腐蚀性能，被广泛应用于各个领域，镀锌层的存在使镀锌钢的焊接工艺大大降低。激光焊接是实现镀锌钢焊接的一种新方法。在镀锌钢激光深熔焊接过程中，锌蒸气和锌等离子体具有两种特殊的焊接特性。
镀锌钢激光焊接的根本问题是锌蒸气对焊接过程的影响。减少锌层蒸发，顺利排出锌蒸气是减少锌蒸气影响的根本途径。从镀锌钢激光焊接的关键技术出发，探讨了提高镀锌钢激光焊接质量的各种工艺和方法，包括寻求具体的工艺措施、优化工艺参数、模拟优化焊接工艺和在线检测控制。根据焊接机理的不同，激光焊接可分为导热焊接和深熔焊接两大类
两者的根本区别在于是否有焊接孔。镀锌钢板激光焊接一般采用深熔焊接。然而，由于镀锌钢板中锌层的存在，在镀锌钢板激光深熔焊接过程中有两种特殊的焊接特性：锌蒸气和锌等离子体。用途：主要用于建筑、轻工、汽车、农业、畜牧、渔业、商业等行业。其中，建筑业主要用于制造防腐的工业和民用建筑屋面板、屋顶格栅等；轻工行业则用它们制造家电外壳

In the early stage, we introduced the application advantages and processing mechanism of Nd: YAG laser in the filling wire welding of aluminum zinc plate, and analyzed the experimental results. The process test shows that the laser brazing with filler wire can obtain the joint with good forming, less defects and qualified performance under suitable conditions. The automotive industry products have the requirements of high efficiency, high reliability and high integration. The hot-dip galvanized steel sheet for automobile is the best and best of the galvanized steel sheet. In order to meet the requirements of high quality and high performance of galvanized steel strip, a new surface treatment technology, fingerprint resistant treatment, has appeared in recent years

In this paper, the development history and research status of fingerprint resistant treatment technology at home and abroad are reviewed. Based on the chemical properties of the coating, the types, composition and application examples of the coating are introduced. Finally, the research prospect of fingerprint resistant treatment is prospected. It is considered that fingerprint resistant treatment technology is a technology with broad development prospect, In the near future, galvanized steel will become a research hotspot. Because of its good corrosion resistance, galvanized steel is widely used in various fields, and the existence of zinc coating makes the welding process of galvanized steel greatly reduced. Laser welding is a new method to realize the welding of galvanized steel. There are two special welding characteristics of zinc vapor and zinc plasma in the process of laser deep penetration welding of galvanized steel.

The fundamental problem of laser welding of galvanized steel is the influence of zinc vapor on the welding process. Reducing the evaporation of zinc coating and discharging zinc vapor smoothly is the fundamental way to reduce the influence of zinc vapor. Based on the key technology of laser welding of galvanized steel, this paper discusses various processes and methods to improve the quality of laser welding of galvanized steel, including seeking specific process measures, optimization of process parameters, simulation optimization of welding process and online detection control. According to the different welding mechanism, laser welding process can be divided into two categories: heat conduction welding and deep penetration welding
The fundamental difference between the two is whether there are welding holes. Deep penetration welding is generally used in laser welding of galvanized steel plate. However, due to the existence of zinc coating in galvanized steel sheet, there are two special welding characteristics in the process of laser deep penetration welding of galvanized steel sheet: zinc vapor and zinc plasma. Application: mainly used in construction, light industry, automobile, agriculture, animal husbandry, fishery, commerce and other industries. Among them, the construction industry is mainly used to manufacture anti-corrosion industrial and civil building roof panels, roof grilles, etc.; the light industry uses them to manufacture home appliance shells