Ring Magnet With Notched HF 24/23
A ring magnet is an object or material that generates a magnetic field. It is usually made of metal alloys and has strong magnetism. Tradition can be divided into permanent magnets and non-permanent magnets. Permanent magnets are natural magnets and can also be made by hand. The most powerful magnets are called neodymium magnets.
The ancient greeks and us Chinese found in nature have a natural stone with magnetism, called magnet for at that time, it can be magic on iron absorption, and after casually swing will always pointed to the same direction. Early navigators used the magnet as the earliest compass to find directions at sea. After thousands of years of development, now ring magnet has become the life of a strong material, passes through synthesis of different alloy materials, which could have the effect of magnet for the same, and can also improve its magnetism. Artificial magnet was appeared in the 18th century, but made more powerful magnetic process is very slow, until the 20th century made of aluminum nickel and cobalt, when then made rare earth magnets, ndfeb, samarium cobalt include both. Now the technology of magnets has developed rapidly, and powerful magnetic materials have made components smaller.
Most of the magnetic materials can be in the same direction with the magnetic saturation, the direction is called magnetization direction, there is no magnet magnetization direction is than magnet magnetization direction and its magnetic much lower.
When ring magnet accidentally falls into two and a half after, if two and a half of the fracture in accordance with the broken place of, as long as a let go, will appear a strange phenomenon, ring magnets will not only broken again, and had broken between two parts there will be a mutually exclusive power.
This is because the magnet is magnetic, for there are adsorption materials such as iron, iron filings, but there is a pole of the magnet, between the magnets, is the same, opposites attract phenomenon, that is to say, if the two magnet of the same magnetic pole relative, between them will produce the power of the mutually exclusive, if that will be two different magnet polarity relatively, can produce attract role, broken ring magnets, that's why can't get together again in the.
When ring magnet broke in two and a half after, the original complete ring magnet magnetic field distribution is changed, originally the Antarctic and arctic appeared in the new location, that is, on the fracture face of annular magnets, is the South Pole, a head is the North Pole, and the other half ring magnets also appeared a new magnetic field distribution, is also a head is the South Pole, is the North Pole. A fracture, that is to say, in the ring magnet appeared the same magnetic pole, in this case, the two magnets according to fracture together again, can appear the phenomenon of the same, under the action of two magnets will be mutual repulsion, separate again.