our processes

process overview | surface technologies

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anodizing

Functional and decorative finishing of aluminum components

burnishing

Process for the darkening of mainly ferrous materials

CVD

Chemical vapor deposition

Nitrotec®

Improves the corrosion resistance of alloys

PVD

Physical vapor deposition

sealing

High performance sealing of aluminum surfaces

surface technology processes

Aalberts surface technologies is one of the world’s leading providers of advanced surface engineering processes. With more than 50 innovative technologies, we improve the mechanical, tribological, and corrosion-resistant properties of metallic components for various industries.

Your benefits with Aalberts ST:

  • More than 50 specialized surface treatment processes at over 50 locations worldwide
  • Combined heat treatment and surface treatment solutions from a single source
  • High reproducibility, sustainability, and certified quality standards (including IATF 16949 and Nadcap)
  • Customized solutions from small batches to millions of parts per year

Looking for the right surface hardening methods or heat treatment process for your component? Use our process scout or contact our experts directly.

surface treatment processes – comprehensive overview

Our surface treatment and surface coating technologies protect, refine, and optimize surfaces for long-term performance. Whether corrosion protection, wear reduction, or decorative finishing — Aalberts ST offers the full range of modern coating solutions.

Aalberts ST combines traditional and advanced surface treatment technologies for maximum performance. These surface treatment technologies also fulfill the demanding requirements of the automotive and aerospace industries while supporting CO₂ reduction targets.

Key coating technologies at Aalberts ST:

  • Electroless nickel plating (DURNI-COAT®) — Uniform high-hardness nickel-phosphorus coatings
  • Zinc flake coatings — Maximum corrosion protection without hydrogen embrittlement
  • PVD and CVD coatings — Extremely hard and wear-resistant thin films

These surface treatment solutions significantly increase component lifetime while meeting the highest industry standards.

Aalberts ST heat treatment processes – overview

Our heat treatment process overview includes all relevant thermal technologies for improving material properties. From surface hardening to stress-relieving processes — precise, repeatable, and energy-efficient.

Our key heat treatment processes:

  • Surface hardening processes including vacuum hardening, induction hardening, salt bath hardening, and austempering
  • Annealing processes including stress relieving, soft annealing, solution annealing, and hydrogen annealing
  • Additional specialty processes such as precipitation hardening, normalizing, cryogenic treatment, and hot isostatic pressing (HIP)

Due to our connected global production network, all heat treatment services are available flexibly and just-in-time.

how are surface treatment solutions applied in different industries?

The surface treatment solutions we offer are specifically designed for the requirements of demanding industries. Whether prototype, serial production, or high-volume manufacturing — we provide the exact combination of heat treatment and surface engineering your components require.

Typical applications and industries:

  • Automotive — Zinc-nickel coatings, anti-friction coatings, thread locking systems
  • Aerospace — Vacuum technologies, HIP, PVD/CVD coatings
  • Mechanical engineering — Nitriding, hard anodizing, polymer coatings

why Aalberts surface technologies?

✓ More than 40 years of experience

✓ Global network with local support

✓ Proprietary developments and patented technologies

✓ Full traceability and highest quality standard