Cold Spray Coatings
CenterLine's Cold Spray coatings products and services deliver unique and distinct benefits to a wide range of industries. "Cold Spray" can best be described as a solid-state metal spraying process. Essentially, metal particles in the form of a powder are introduced into a cold, high-speed gas stream nozzle tube and directed toward a metal or glass substrate. The kinetic energy of supersonically accelerated fine metal particles is used for bonding to produce a new metal coating.
Cold Spray is accepted as a member of the Thermal Spray family and also known as:
- Gas Dynamic Spray
- High-Velocity Powder Deposition
- Kinetic Spraying
- Kinetic Energy Metallization
- Supersonic Particle Deposition
The Cold Spray process is ideal for many types of coatings needs, including:
- Metal Restoration and Sealing - Engine blocks, castings, molds and dies, weld seams, auto body repair, HVAC equipment, refrigeration equipment, heat exchangers
- Thermal Barriers - Aluminum piston heads, manifolds, disc brakes, aircraft engine components
- Thermal Dissipation - Copper or aluminum for heat sinks for microelectronics
- Wear Resistant Coatings - Metallic-ceramic matrix, Solid lubricant matrix with base metals
- Electronically Conductive Coatings - Copper or aluminum patches on metal, ceramic or polymeric components
- Localized corrosion protection - Zinc or aluminum deposits on affected helms, weldments or other joints
- Biomedical - Biocompatible/bioactive materials on orthopedic implants, prostheses, dental implants
- Low-temperature application (in comparison to Thermal Spray processes)
- Very low oxidation
- No detrimental impact on temperature-sensitive grain structures (e.g., nano-structured, Amorphous)
- Favourable compressive residual stresses
- Gradient deposits
- Suitable for many substrate materials (metals, glass, composites)
- High density, low porosity coatings (typically <0.5 %)
- Minimal substrate distortion at thicknesses as low as (0.005")
- Minimal surface preparation needs.
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