The cast metal is still a normal iron block

This new magnet is to be & quot; 5,000 years ago, human beings have found natural magnet stone. Tied the metal piece on the copper tube, put in a larger pipe, put the copper pipe in the middle position, surrounded by strictly stacked silicone, seal both ends of the copper tube on both ends. Today, I will tell you here, let's see it next time. 

Today, I will tell you about the history of the magnet. The metal is placed in an electromagnetic stove, heated to 1600 ° C, square magnet manufacturer and all metals are merged into a liquid. Around 1100, the Chinese applied magnet needles and azimuths together, making a magnet guide for navigation. Keywords: magnet . The above is the historical introduction of the magnet, I hope to help everyone. 

The metal is separated from the sand block, and the cast metal is still a normal iron block, and does not have any magnetic force.The ingredient of the magnet is China Strong Square Magnet Manufacturers iron, cobalt, nickel and other atoms, and the internal structure of the atom is special, which itself has a magnetic moment. A new magnet of nickel, aluminum and cobalt mixed elements have been discovered in Japan. 

In the 1970s, Japanese scientists have created neodymium magnet. Use a hammer to open the casting, so that the air enters the inner cooling data, so that the gas is burning. The manufacturing process of permanent magnet: casting the exterior of the demand magnet profile, it can cast the magnet, the information includes: copper, cobalt, sulfur, nickel, iron, aluminum, and titanium. 

The 1820 Dani physicist discovered current inductance. The magnet can generate a magnetic field, which has characteristics such as iron, nickel, and cobalt. 2,300 years ago, the Chinese abmented natural magnets into a scoop, put it in a smooth air, under the role of geomagnetic, and the spoon handle guide, for the world's first guide to permanent magnet