Zinc phosphating for the automotive industry: a case of success

Zinc phosphating is one of the most widely used surface treatments in the automotive industry to ensure corrosion protection and uniformity in coatings. For more than ten years, we have been working with a major player in the automotive industry, providing a reliable and repeatable process that has resulted in the treatment of more than 20,000,000 parts, all with the same quality and performance specifications.
 

A surface treatment for complex industrial needs

The customer turned to AlfaTech to implement a treatment capable of meeting stringent production requirements. In particular, they required

• Long-term stable corrosion protection, even in critical environments.
• A surface compatible with the adhesion of protective oils or paints.
• Visual and functional uniformity of the treated parts, on large-volume batches.
• Ability to manage orders on a weekly basis and certain delivery times.

Zinc phosphating proved to be the ideal solution to ensure component durability and optimal preparation for painting or lubrication, in line with the quality standards required by the automotive industry.
 

The production process

Our approach is based on structured technical management and careful control of each treatment step:

• Dedicated automated phosphating plants to ensure production consistency.
• Daily quality controls with monitoring of process parameters.
• Complete traceability of each batch, from intake to final delivery.

Continuous dialogue with the customer has made it possible to quickly adapt the process to any design changes and to maintain high standards even on extraordinary or urgent batches.
 

The results

Over the course of the collaboration, we have continuously processed more than 20 million parts, maintaining consistent quality and stable parameters throughout the project. The technical relationship with the customer, which has been in place for more than ten years, has made it possible to manage production at regular weekly intervals, even during periods of increased pressure.
This is a concrete example of how the standardisation of surface treatments, combined with careful technical management, can guarantee measurable results over time, even on a large scale.
 

Conclusions

This project demonstrates how well-designed anti-corrosion treatment and rigorous technical management can lead to measurable and repeatable results over time.

AlfaTech is the ideal partner for companies that need reliable, standardised and scalable surface treatments for metal components.

If your company operates in the automotive industry and is looking for an effective metal protection solution, contact us: we will be happy to evaluate the technical specifications together and build a plan tailored to your needs.