What is the difference between a strong magnet and an ordinary magnet?

Speaking of magnets, we are familiar with them when we return home. They can attract iron, but magnets are not invented by humans. They are natural magnetite. The ancient Greeks and Chinese found natural magnetized stones in nature, which can attract small pieces of iron. Early navigators used magnets as compasses to identify the direction of the sea. Magnets as a compass were also one of China's four great inventions. With the development of society, various magnets have been discovered. Let's introduce the difference between powerful magnets and different magnets.

1. A powerful magnet, just by looking at the name, its magnetic force is definitely greater than that of an ordinary magnet, but regardless of whether it is a powerful magnet or an ordinary magnet, its magnetic poles will not change. We use technical means to make multiple poles of the same magnet, that is Say that the magnet has several N poles and corresponding S poles.

2. Magnets are generally affected by the outside world to weaken their magnetic properties. Magnetic fields such as temperature changes will also affect their magnetic properties. However, different magnets are affected differently and the conditions of demagnetization are different. Magnetism must be re-magnetized. Then there is a strong magnet, a metal magnet. After magnetization, the magnetic force becomes stronger and becomes a powerful magnet. The surface treatment of a powerful magnet can be divided into galvanized, nickel-plated, epoxy, gold-plated and other types. However, no matter what kind of electroplating, we must first understand the characteristics of the magnet. Magnets belong to powder metallurgy, and their surface activity is relatively high. Therefore, when phosphating, pay attention to that the surface characteristics of the magnet should not be damaged.

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