Suihkupäällystäminen

Suihkupäällystäminen, often translated as spray coating or spray metallization, is a process used to apply a thin layer of metal onto a surface. This is typically achieved by atomizing a molten metal and then propelling the fine droplets towards the substrate where they solidify upon impact. The process can be carried out using various methods, including flame spraying, plasma spraying, and arc spraying, each utilizing different energy sources to melt and propel the metal.

The primary purpose of suihkupäällystäminen is to impart specific properties to the surface of a material that it would not possess otherwise. This can include enhancing corrosion resistance, improving wear resistance, increasing electrical conductivity, or providing decorative finishes. The thickness of the applied coating can be precisely controlled, ranging from a few micrometers to several millimeters depending on the application and the method used.

Common materials that undergo suihkupäällystäminen include metals like aluminum, zinc, copper, and various alloys. The substrates can be diverse, encompassing metals, ceramics, and even plastics. The technique finds application in numerous industries, such as automotive for protective coatings, aerospace for thermal barrier coatings, and manufacturing for wear-resistant components. Proper surface preparation of the substrate is crucial for achieving good adhesion of the sprayed coating.