Exploring Zinc Coating Options in the Automotive Industry

In the realm of zinc coatings for corrosion protection in the automotive industry, there are two prominent techniques: thermal spraying and rolled zinc. Each method offers a unique set of advantages and challenges.

Thermal Spraying: Versatile and Cost-Efficient

Thermal spraying is recognized for its versatility and cost-effectiveness. It excels in controlled application, reducing material wastage, and it is a thrifty choice for automotive applications. However, its unequal zinc layers can pose vulnerability during soldering, potentially leading to corrosion risks.

Rolled Zinc: Uniform Protection with Considerations

Rolled zinc, on the other hand, provides more uniform zinc layering, ensuring enhanced corrosion resistance. However, it can be less cost-efficient due to material consumption.

LIBS: A Game-Changer in Quality Control

Both thermal spraying and rolled zinc can benefit from Laser-Induced Breakdown Spectroscopy (LIBS). LIBS technology accelerates the assessment of zinc coatings, ensuring optimal thickness and minimizing material loss. It is particularly crucial for monitoring remaining zinc post-soldering, enhancing the overall quality of both processes.

The figures below illustrate AtomTrace analyses of zinc coatings as well as zinc detection.

In conclusion, the automotive industry can leverage the strengths of both thermal spraying and rolled zinc, recognizing that each method has its merits. By incorporating LIBS technology, manufacturers can maintain the highest standards of quality and corrosion protection while optimizing resources.