浅谈汽车镀锌板焊接质量控制

Discussion on Welding Quality Control of Automotive Galvanized Sheet

摘要

汽车整车及零部件生产需要用到冷轧板、热轧板、电镀锌板和热镀锌板等钢材，随着汽车工业的发展，镀锌板由钢材经过镀锌处理而成，表面覆盖了一层致密的锌层。这层锌层可以有效地防止钢材受到大气、水分等环境因素的侵蚀，从而延长汽车的使用寿命。此外，镀锌板还具有良好的成型性和焊接性，易于加工，能够满足汽车制造的复杂需求，然镀锌板熔点低、可焊性差，裂纹和气孔倾向明显，镀锌板焊接对焊接设备和焊接工艺都是一个挑战，因此如何提升镀锌板车身焊点质量是我们一直探讨的话题，论文介绍了镀锌板焊接的几点管控方法，为白车身焊接质量提升提供参考。

Abstract

The production of automobiles and their components requires the use of cold-rolled plates, hot-rolled plates, electroplated galvanized plates, hot-dip galvanized plates and other steel materials. With the development of the automotive industry, galvanized plates are made from steel that has undergone galvanizing treatment and are covered with a dense layer of zinc on the surface. This zinc layer can effectively prevent the steel from being corroded by environmental factors such as atmosphere and moisture, thereby extending the service life of the car. In addition, galvanized sheet metal also has good formability and weldability, is easy to process, and can meet the complex needs of automobile manufacturing. However, galvanized sheet metal has a low melting point, poor weldability, and obvious tendency towards cracks and pores. Welding galvanized sheet metal is a challenge for welding equipment and welding processes. Therefore, how to improve the quality of galvanized sheet metal body welding points has been a topic we have been exploring. This paper introduces several control methods for galvanized sheet metal welding, providing reference for improving the quality of white body welding.

关键词

白车身镀锌板焊接 / 焊接参数 / 电极帽 / 板件间隙控制

Key words

white galvanized plate welding / welding parameters / electrode cap / plate clearance control

参考文献

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[3] 叶浩. 汽车用镀锌板焊接缺陷控制研究进展[J]. 机械制造文摘(焊接分册), 2021(4): 25-29.