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What You Ought To Know About Magnets
Alnico magnets can be composed of many materials including copper, titanium, nickel, cobalt and aluminum. A hard and brittle material, Alnico is known for sometimes being difficult to rework. Rods, rings, discs, blocks, cylinders and horseshoes are just a few of the shapes that alnico can be manufactured in. With high residual inductions and high energies alnico magnets are normally manufactured through sintering or casting. Casting is a process where molten metal alloy is poured into a mold and processed through a number of various heat-treated cycles. When manufacturing magnets sintering is often used, which is a process used to combine two main materials combined by melting them down until they stick to each other. When sintering alnico, a fine alnico powder is usually compacted in a press. The many benefits to alnico magnets include their strength, affordability, ability to maintain their magnetic qualities and resistance to extremely high temperatures. Overall, alnico magnets are a good choice for a variety of industrial and consumer applications..
Of all the magnets available ceramic ferrite magnets are one of the most popular types produced, and are often referred to as ceramic magnets or ferrite magnets. Ceramic magnets are popular because they maintain their magnetic qualities for long periods of time and are also extremely affordable. Ceramic magnets are ideal of use at work, in your shop or garage or at home because they will keep their magnetic qualities for long periods of time and can also be manufactured from affordable materials, reducing their cost. Ceramic ferrite magnets are made from a chemical compound containing ceramic and iron oxide. The process for creating ceramic magnets is to press and sinter mixtures of magnetic powders and ceramic. Ceramic ferrite magnets are best known as being hard and brittle magnets. Sintering is used to make solid objects out of powder. Sintering is completed by heating the powder in a furnace until the particle stick to each other (but don't melt)..
The strength and affordability of neodymium makes it one of the most popular rare earth magnets. Rare earth magnets are strong, permanent magnets which do not easily lose their magnetism and is the reason they are considered permanent. Rare earth magnets are the strongest type of permanent magnet currently made, although they were developed in the 1970s and 1980s. Rare earth magnets are usually comprised of the alloys iron, cobalt and nickel. Corrosion, breaking and chipping are concerns with rare earth magnets because they tend to be brittle, however applying a good plating or coating will protect the magnet from these problems. Two commonly used rare earth magnets are samarium-cobalt and neodymium. Of all permanent magnets neodymium is the strongest, stronger than alnico, ferrite or samarium-cobalt magnets. The classification of rare earth is misleading because the elements that make up neodymium magnets are very common and easily found, making the magnets very affordable. Neodymium magnets are used in many different fields such as health, electronics, mechanics, industrial and security sectors.
High energy strip magnets are a powerful type of flexible magnetic strip. A high energy strip magnet has a nitrile rubber base which makes it more resistant to oils and acid. The stored energy in a magnet, otherwise called magnet performance or magnetic energy product is usually measured in megagaussoersteds (MGOe). Available in 1.1 - 1.6 MGOe, high energy strip magnets are more powerful than normal flexible magnetic strips. Available in many different shapes and sizes magnetic strips are often laminated and have adhesive backing. Flexible magnetic strips will stick to any ferrous surface, can be cut to size, are available in many sizes and shapes and are ideal for laminating and punching. You can use magnetic tape for a number of uses around your home, in school or at work. Magnetic tape can stick to many surfaces because the back has a magnetic face and the front has an adhesive face. Magnetic tape can be used for a number of different applications because it is so affordable, thin, flexible and versatile.
Due to their high levels of magnetism block magnets are quite durable. Consider the types of conditions and the purpose you will use a magnet for before you decide on the magnet's composition. You should use a rare earth magnet instead of an alnico or ferrite magnet if you are looking for a magnet for heavy duty or industrial use. In addition to the strength of the magnet you need to consider the temperature and keep in mind that some magnets lose or maintain magnetism at different temperatures. The type of magnet you will use will depend on your needs, but keep in mind how easy or difficult it is to demagnetize the magnet when you make your decision.
About the Author
JobMasters is the only magnet manufacturer based in Canada. They Offer <a href="http://www.jobmastermagnets.com/neodymium-magnets.aspx">Magnets Neodymium</a> and <a href="http://www.jobmastermagnets.com/electromagnets.aspx">small round magnets</a>.