Find the Perfect Magnet

Alnico magnets can be made from a variety of materials such as cobalt, nickel, aluminum and sometimes even titanium and copper. Alnico can sometimes be difficult to rework because it is made of such hard and brittle material. You can have alnico manufactured in a number of shapes such as cylinders, horseshoes, blocks, discs, rings and rods. Casting and sintering are the most common ways to manufacture alnico magnets, which have high energies and high residual inductions. Casting processes involve pouring molten metal alloys into a mold and then processing it through cycles that are heat-treated. Manufacturing magnets through sintering is a process where two main materials are combined and melted down until where they stick to each other. Sintering alnico results in a fine alnico powder that is then compacted in a press. Alnico magnets provide many benefits. In addition to being affordable and strong they can also resist extremely high temperatures and they are able to keep their magnetic qualities for a long period of time. Alnico magnets are excellent choices for industrial and consumer applications..

Ceramic and iron oxide are usually the base materials for ceramic ferrite magnets. Ceramic magnets are made by pressing and sintering magnetic powders and ceramic. Sintering is used when manufacturing magnets and it heats two main materials to a point when they stick together. Described as being hard and brittle, ceramic magnets are affordable to produce.Although the terms hard and soft are misleading ceramic ferrite magnets are categorized as either being a hard ferrite or a soft ferrite. The difference between hard and soft ferrite actually is in the intensity of the magnetic field required to demagnetize the material, not in the density of the material as the name suggests. Neodymium is present in the ore minerals monazite and bastnasite. Preferred for certain applications, neodymium magnets are extremely strong and can perform in extreme conditions. If you require maximum energy then neodymium magnets are a great choice. Neodymium are preferred over ferrite or alnico magnets in certain applications because they are much stronger. Products that are made from neodymium have many advantageous features. Neodymium is one of the few magnets that can perform very well in extremely cold temperatures. The only other drawback to using neodymium lies in its durability. Since it is less resistant to oxidation than samarium-cobalt, it needs to have surface treatments applied to protect it from scratching. Since neodymium is brittle and can form cracks due to corrosion manufacturers often apply treatments of tin, gold, nickel or zinc platings or coatings to the surface to protect it. Neodymium magnets can be improved through the application of a good plating or coating which will minimize cracks and the process of oxidization..

A powerful type of magnetic strip is a high energy strip magnet which has a nitrile rubber base. The stored energy in a magnet, otherwise called magnet performance or magnetic energy product is usually measured in megagaussoersteds (MGOe). More powerful than normal flexible magnetic strips, high energy strip magnets come in 1.1 - 1.6 MGOe. Magnetic strips have adhesive backing, are often laminated and come in many different shapes and sizes. Ideal for laminating and punching, flexible magnetic strips can be cut to length, are available in a number of sizes and widths and will stick to any ferrous surface. Magnetic tape can be used for many uses in the office, at work, at school or in your home.