Flat washers are typically thin pieces of various shapes that are used to reduce friction, prevent leaks, isolate, and prevent loosening or dispersing pressure. These components are found in many materials and structures and are used to perform a variety of similar functions. Due to the material and process limitations of threaded fasteners, the supporting surface of bolts and other fasteners is not large, so in order to reduce the compressive stress of the bearing surface to protect the surface of the connected part, it uses washers.
Hot dip plating is the most commonly used galvanizing method in manufacturing industry. The method is suitable for steel and iron alloys. The process involves dipping iron or steel into a zinc melt pool, which reacts and forms a zinc-iron alloy that binds to the metal surface. The zinc is then combined by metallurgy to form a coating.
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