Metal rings are circular metal strips. Like many other simple metal shapes, metal rings can be found in many more uses and environments. Metal rings are used to decorate door hardware, key chains, and manhole and passageway entrances. Quick Links for Metal Ring Information Application of metal rings Materials used to make metal rings The process of making a metal ring Application of metal rings The wide range of metal ring applications extends to fastening, sealing, joining, or trimming items such as drums and doors, streetlights, or mirrors. Children's toys, electronics, vehicles, furniture, household appliances, and many other products use metal rings in some form. Metal rings can be a few inches in diameter or as large as ten feet. While metal rings can be manufactured for less demanding applications, some industrial users of metal rings require their rings to meet certain durability, corrosion resistance, and other quality standards. 
Materials used to make metal rings Chemical manufacturers, oil and gas companies, aerospace product manufacturers and military contractors who use metal rings in harsh applications need to ensure that their rings will not fail. For such applications, steel is usually the ring material of choice. Brass, aluminum, copper, and zinc are other common materials for making metal rings. The process of making a metal ring There are several processes for making metal rings. The easiest and least accurate way to make a metal ring is to take a piece of metal sheet or strip, cut it to size, bend it by hand, and weld the edges together. Due to its inefficiency and inaccuracy, this approach is hardly sustainable. Roll forming is a process that is closer to manual bending but eliminates inefficiencies. A roll former is an elongated machine with a series of rotating rolls. A long strip of pretreated metal is fed into the receiving end of the roll mill and picked up by the first set of rotating rolls. These rollers fit snugly against the wire, and when the metal is pulled, it is pushed onto the next set of rollers.
Each successive set of rollers is configured in a slightly different way, changing the shape of the metal strip as it passes through them. In the rolling of metal rings, the rollers round the metal strip. Since roll forming does not involve heating or welding, roll formed metal rings are usually U-shaped or similar. For this reason, they are generally only suitable for applications that can be closed with fasteners or other means. leg Each ring has a leg. This is the technical term for the metal band that surrounds the finger. Without a handle, there is no ring. If the loop has a distinct design feature at the top, it is generally said that the stem of the loop starts at the point where the design stops. The cathedral is a special ring style with metal arches rising from the stem and creating an open space. These arches are called churches. Cathedral arches come in different styles and thicknesses. Some are sleek and simple; others are wider and set with raised diamonds. The center stone also varies in size and cut, but you know it's a cathedral ring when you see those metal arches extending up from the center. This is the fundamental value of metals. The prices of all metals fluctuate based on market supply and consumer demand. 
The purer and more precious the metal, the more limited its availability. Rarity increases demand and allows metals such as platinum to retain their intrinsic value over time. life in addition to the metal's ability to resist wear, life is judged by some practical considerations. Platinum is very durable and platinum jewelry can be passed down from generation to generation. Tungsten is also a very durable metal; however, it is not considered a precious metal and the tungsten ring cannot be resized. Purity of precious metals How much precious metal is in your ring? 14 karat gold is a combination of 58% pure gold and 42% non-precious metals. 18 karat gold is 75% pure. Both platinum and palladium are precious metals with a purity of at least 90% to 95%. Tungsten and titanium are also 90-95% pure but are not considered precious metals. anti-allergy Hypoallergenic metals reduce or minimize the likelihood of allergic reactions by minimizing potential irritants. Platinum is the only precious metal that is truly hypoallergenic. surface strength How much metal (and therefore value) does a ring lose from scratches and dents? All metals are scratched, but with gold, the scratches remove a piece of metal. With platinum, scratches just ripple on the surface.
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