Metal surface treatments are essential for improving the performance, durability, and appearance of various components. By enhancing properties such as corrosion resistance, hardness, and aesthetics, these treatments find applications across industries from aerospace to consumer goods. Below, we explore four widely used surface treatments and their benefits.
1. Thermal spraying
Thermal spraying uses a high-temperature source, such as a flame or electric arc, to melt materials such as metals, ceramics, or plastics. The molten material is then sprayed onto a substrate at high speed, forming a durable coating.
This process is versatile, allowing for customisation in coating thickness and material selection. It is commonly applied in industries such as power generation, metallurgy, and machinery repair to extend the service life of components such as boiler tubes or worn shafts.
2. Electrolytic polishing
Electrolytic polishing involves submerging a workpiece in an electrolyte and applying an electric current to remove surface irregularities. This process enhances the surface’s brightness, smoothness, and corrosion resistance while eliminating fine burrs.
Used extensively for stainless steel products, precision parts, and medical devices, electrolytic polishing ensures a high degree of automation and cost efficiency. Stainless steel surgical instruments and tableware are prime examples of its applications.
Specialists such as https://www.poeton.co.uk/surface-treatments can tell you more about surface treatments we haven’t covered.
3. Phosphating
Phosphating immerses metal components in an acidic solution, forming a phosphate film on the surface. This porous film improves coating adhesion and corrosion resistance while enhancing lubrication in moving parts.
Industries such as automotive, machinery, and hardware manufacturing rely on phosphating for pre-paint treatment, making car bodies and metal furniture more durable and resistant to wear.
4. Vapour deposition
Vapour deposition encompasses physical and chemical methods to create thin, high-quality coatings. These coatings, often used for wear and corrosion resistance, are essential in fields such as optics, electronics, and tooling.
Examples include semiconductor chips, optical lenses, and metal-cutting tools. Vapour deposition is ideal for precision components and complex geometries. By enhancing durability, functionality, and aesthetic appeal, these processes ensure components meet the rigorous performance standards required by the industry.
