Protective coating

Protective coating

To protect components against wear and heat or carry out dimensional adjustments, we use various coating processes. MTU Aero Solutions offers you access to these processes.

Electrolytic and chemical deposition and coating removal processes

Electrolytic and chemical deposition and coating removal processes are used to change the surface properties of an object (e.g. abrasion and wear resistance, corrosion protection, lubricity, aesthetic qualities, etc.), but may also be used to build up thickness on undersized parts or to form objects.

ProcessObjectivePossible base materials
Applying and removing chrome plating
  • Wear- and corrosion-protection layers
  • Dimensional adjustment layers
  • Al, Ti and NiCo alloys
  • Carbon steels
  • Cr, CrNi steels
  • Gray cast iron
Applying and removing nickel plating (sulfamate, chemical nickel)
  • Dimensional adjustment layers
  • Layers to improve solderability
  • Corrosion-protection layers
  • Al, Ti, NiCo, WCu, MoCu alloys
  • Carbon steels
  • Cr, CrNi steels
  •  Gray cast iron
  • Molybdenum
Deposition and removal of Tribotal 23 (Co/Cr203 dispersion layer)
  • Wear-protection layers with excellent vibration, friction and wear properties
  • Al, Ti and NiCo alloys
  • Carbon steels
  • Cr, CrNi steels
  • Gray cast iron
Platinization
  • Hot gas corrosion protection in conjunction with calorization
  • Ni and Co alloys

Conversion coating processes

For different  kinds of corrosion protection MTU Aero Solutions provides folllowing conversion coating processes.

 

ProcessObjectivePossible base materials
Chromic acid anodizing (Bengough-Stuart process)
  • Corrosion-protection layers, holding primers for paint layers
  • Al alloys
Direct current anodizing
  • Corrosion- and wear-protection layers, holding primers for paint layers
  • Al alloys
Phosphating
  • Corrosion-protection and lubricating layers, holding primers for paint layers
  • Carbon steels

 

 

Diffusion coating using the CVD process

ProcessObjectivePossible base materials
Calorization
  • Hot gas corrosion and oxidation protection
  • Ni and Co alloys
  • High-alloy steels
Chromizing
  • Hot gas corrosion protection
  • Ni alloys
  • High-alloy steels

Wet-chemical surface treatment processes

Electro polishing is an electrochemical process, used to polish, passivate, and deburr metal parts.

 

ProcessObjectivePossible base materials
Electropolishing / Electropolish-deburring
  • Leveling and smoothing rough surfaces
  • Reducing residual tensile and compressive stresses near the material surface
  • Removing cracks near the surface and material inhomogeneities
  • Improving fatigue behavior
  • Opening cracks in preparation for crack test
  • Cr, CrNi steels
  • Ni and Co alloys

 

 

Thermal spraying

Deposition of quality metallic and nonmetallic coating systems by means of flame spraying, atmospheric plasma spraying and highspeed oxy-fuel flame spraying.

 

ProcessObjectiveSpray materials
  • Atmospheric plasma spraying
  • Flame spraying
  • High velocity
  • oxygen fuel spraying
  • Cold spraying
  • Electric arc spraying
  • Heat insulation layers
  • Dimensional adjustment layers
  • Sealing coats
  • Layers for electrical isolation
  • Protective layers against

- Abrasion

- Erosion

- Hot gas corrosion

  • Ni alloys
  • Co alloys
  • Ti alloys
  • Fe alloys
  • MCrAlY alloys (+ CVD, fillers)
  • AlSi alloys (+ fillers)
  • Aluminum oxide
  • Aluminum/Titanium oxide
  • Zirconium oxide
  • Chromium carbide/NiCr alloy
  • Molybdenum
  • Nickel/Graphite
  • NiCrAl/Bentonite

 

 

Contact

Federico Sender
Phone: +49 (0) 89 1489-4091
Fax: +49 (0) 89 1489-6053
Phone: +49 (0) 89 1489-4091
Fax: +49 (0) 89 1489-6053
Petra Smula
Phone: +49 (0) 89 1489-4794
Fax: +49 (0) 89 1489-6053
Phone: +49 (0) 89 1489-4794
Fax: +49 (0) 89 1489-6053
Karin Wolf
Phone: +49 (0) 89 1489-9383
Fax: +49 (0) 89 1489-6053
Phone: +49 (0) 89 1489-9383
Fax: +49 (0) 89 1489-6053

Or send us an e-mail