surface treatment
Aalberts surface technologies Villers-Cotterêts
about this location
Aalberts surface technologies Villers-Cotterêts is your specialist for anti-corrosion and anti-wear surface treatment in France.
welcome to Villers-Cotterêts !
The company was founded in 1952 and joined Aalberts in 2005. We are adopting the name in 2021 according to the will of having one name for all entities belonging to Aalberts.
Bringing service to the aerospace, defence and space sectors, we are the reference for all surface treatment on aluminum and titanium alloys.
On the Villers-Cotterêts site we offer you the following services:
- Treatments by electrolytic conversion (CAA – TSA – SAA – Hard anodizing – SAA titanium)
- Chemical conversion treatments (Alodine – Surtec 650 – Conversion coating on titanium alloys)
- Non-destructive testing (Fluorescent dye penetrant testing – Blue etch – Chromic dye penetrant testing)
- Paint, varnish and colouring (Solvent and water-based – Molykote – E coating)
quality at the service of the most demanding clients
The Villers-Cotterêts site has obtained ISO 9001, EN 9100, ISO 14001, and NADCAP certifications.
This has enabled us to gain the trust and qualifications from largest clients such as DASSAULT-THALES-SAFRAN-AIRBUS- NEXTER-MBDA-COLLINS- RATIER FIGEAC.
towards environmentally friendly treatments
In Villers-Cotterêts, our team has put efforts and investment to reduce impact on environment and has implemented alternative solutions to get rid of treatments using Chrome VI.
E-Coating, allows in a single step to combine an anodic undercoat and a paint film with a controlled and thinner thickness and a shorter cycle time. The paint application is similar to a spray application with better performance (anti-corrosion and adhesion). It is possible to produce parts of any geometry, on titanium or aluminum alloys. Problems with grains or drips cannot occur as it is an anodized application. Combination with post or pre-treatment can be also performed.
We are also gradually replacing CAA by TSA, developed by AIRBUS, to comply with REACH legislation and the removal of chromium VI. This process can be applied to all grades of aluminum alloys and provides good paint adhesion. The combination of the two (TSA + paint) gives a very good corrosion resistance. This anodization forms a thin layer of 2 to 7 µm.
We are also able to offer a REACH substitute for Alodine 1200 (chemical conversion). Surtec 650, a process that ensures the same properties: good adhesion, a paint bonding base, good anti-corrosion protection and electrical continuity.
from innovation to quality
We see ourselves as far more than applicators, it is our aim to be innovators. Patents are developed and registered.
To continuously improve our internal performance, we work in cooperation with our customers and other entities from Aalberts as part of development programs.
Our research is developed in our laboratories or in our production workshop.
Past and current developments and patents:
- BF5 chromic anodizing (own property)
- Optimized sealing (jointly owned by DASSAULT and Villers-Cotterêts)
- Molybdate sealing (own property)
- DURKALU hard anodizing (own property)
- E-coating (developed by PPG in cooperation with Villers-Cotterêts)
mechanical stripping (mechanical preparation of surfaces)
Our main processes used are:
- Preparation of surfaces by dry sand blasting (corundum)
- Paint stripping by plastic medium
Substrates concerned:
- Mainly steel, aluminum alloys and titanium alloys
wet shot peening
Controlled shot peening is a sensitive technique, based on the structural transformation of materials.
The process consists of putting mechanical parts under superficial compression by the projection of small steel, glass or ceramic beads. Applied on the entire surface to be treated or only on certain areas, this microbead blasting operation creates a compressed area which increases the surface hardness of the parts concerned and decreases their deterioration due to fatigue.
Applications:
- Structural parts made of aluminum or titanium alloy
- Treatment carried out before anodizing for aluminum alloys
paint (oil-based, water-based and bonding primer)
MoS2: Molykote type deposit
S2, S3 and S4 fluorescent dye penetrant
chromic dye penetrant test
Chromic dye penetrant is a non-destructive test applicable to aluminium alloys.
Faults detected:
- Machining faults
- Heat treatment faults
- Forging faults
- Welding faults
- Skin faults (cracking, pitting, etc.), faults shown up by chromic dye penetrant test
blue etch (titanium alloy)
The purpose of the process is to highlight the structure and detect visible indications on the surface such as:
- Chemical segregations, α, β and silicides
- Inclusions, porosity
- Cracking, forge folds and folds
- Areas of overheating and areas of localised under-heating
- Incrustation, inclusions and heterogeneities
- Shearing, separation and cold working
- Areas of localised α-case contamination and oxide skins
- Local overheating caused by polishing or burning caused by machining
- Sudden change in fibre, grain size or grain not recrystallized
- And any other that is detectable by this inspection process (machining or handling faults)
our treatment capacities
Non-Destructive Testing
| S2, S3 and S4 fluorescent dye penetrant | 5,500 x 0,600 x1,900 meters |
| Chromic dye penetrant test | 5,500 x 0,600 x1,900 meters |
| Blue etch (Titanium Alloy) | 1,700 x 1,000 x 1,700 meters |
Treatment by electrolytic conversion
| CAO: Chromic anodic oxidation | 5,500 x 0,600 x1,900 meters |
| STA: Sulpho-tartaric anodic oxidation | 5,500 x 0,600 x 1,900 meters |
| SAO: Sulphuric anodic oxidation | 5,500 x 0,600 x1,900 meters |
| HAO: Hard anodic oxidation | 5,500 x 0,600 x1,900 meters |
| SAO(ti): Sulphuric anodic oxidation (titanium) | 0,700 x 0,800 x 0,600 meters |
| Anaphoresis | 1,500 x 0,600 x 1,000 meters |
Chemical conversion treatment
| FPC: fluoro-phosphate conversion (titanium) | 0,700 x 0,800 x 0,600 meters |
| Alodine 1200 chemical conversion | 0,700 x 0,800 x 0,600 meters |
| Surtec 650 | 1,000 x 0,700 x 0,700 meters |
Paint, varnish and colouration
| Paint (oil-based, water-based and bonding primer) | 5,500 x 1,000 x 1,900 meters |
| MoS2: Molykote type deposit | 1,000 x 0,700 x 0,700 meters |
| Anaphoresis | 1,500 x 0,600 x 1,000 meters |
