Why stainless steel screws can prevent rust
As is well known, people in the industry know that stainless steel screws generally have a "maintenance layer", which plays a role in rust prevention. So what is this maintenance layer? Let the promoted Thai editor provide you with the most professional answers!
"Maintenance layer" is actually a type of coating, also known as "coating" in the industry. Mainly used to isolate metal from external oxidation reactions, resist wear, increase lubrication, etc! Plays an important role in protecting aesthetics and increasing service life.
The maintenance layer is usually divided into two categories: metallic coatings and non-metallic coatings.
Metal coating refers to the maintenance layer formed by using corrosion-resistant metals or alloys on the surface of easily corroded metals, and this type of coating is also called coating. There are many methods and varieties for producing metal coatings, among which the most common is electroplating, followed by molten metal immersion (hot dip), and chemical surface treatment.
Non metallic coating refers to the use of organic polymer materials such as paint and inorganic materials such as ceramics to form a maintenance layer on the surface of metal equipment or parts. This maintenance layer can completely isolate the base metal from the environmental medium, avoiding the formation of corrosion of the base metal due to contact corrosion with the stainless steel standard component medium.
