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Samarium Cobalt Magnets Main Hazard
Jun 27, 2017

Samarium Cobalt Magnets Main hazard

Main hazard editor

1. SmCo magnets are easy to peel. When dealing with them, you must wear goggles.

2. Putting the magnets together may cause the magnets to crush, which may cause a potential hazard.

3. SmCo is made from a so-called sintering process, and all materials are sintered and are very likely to produce cracks inside. The magnet does not have mechanical integrity and only has the function of preparing magnetic fields. Therefore, it is necessary to design a special mechanical system to give the overall system sufficient mechanical reliability.

Production and processing editor

Samarium cobalt magnet production process: ingredients → melting ingot → milling → pressure → sintering tempering → magnetic detection → grinding processing → cutting → finished products.

These alloys are usually processed in a non-magnetized state. Smurt with fine grinding (water-cooled) and diamond wheels. This procedure is required if drilling holes or other features are limited. The grinding waste must not be completely dry, because the samarium cobalt has a low ignition point. A small spark, such as the production with static electricity, can be easily burned. The temperature of the fire will be very high and difficult to control.

Latest research editor

2012 Japan's Toshiba company developed a high-speed engine with samarium cobalt magnet, this magnet is completely free of rare earth elements dysprosium, but the magnetic force is now widely used than the heat-resistant neodymium magnets strong.

The newly developed high-iron concentration of samarium cobalt magnet using Toshiba's independent research and development of heat treatment technology, so that the original magnetic as neodymium magnet samarium cobalt magnet in 100 degrees Celsius above the environment has exceeded the heat-resistant neodymium magnet strong magnetic force. In order to increase the magnetic force, R & D personnel will be iron from the original 15% to 20% to 25%, and in the sintering adjustment of temperature, time, pressure to achieve the best condition, thereby reducing the magnetic resistance to increase the oxidation And other factors. Plans to put this new magnet into the market by the end of 2012.

Samarium cobalt magnets (2:17) and NdFeB magnets:

(1) Ingredients: NdFeB Magnet: Rare earth metal neodymium 29% -32.5% Metal element iron 63.95-68.65% Nonmetallic element boron 1.1-1.2% Add a small amount of dysprosium 0.6-1.2% Niobium 0.3-0.5% Aluminum 0.3-0.5 % Copper 0.05-0.15% and other elements.

Samarium cobalt magnet 2:17: rare earth metal samarium Sm: 23-28% rare earth metal cobalt Co: 48-52% metal element iron Fe: 14-17% metal element copper Cu: 5-7% a small amount of zirconium Zr: 2- 3 (2) performance is relatively different, the overall performance of samarium cobalt magnet than NdFeB weak!

The simplest way to look from the appearance of about, ferrite loose and no metallic luster, samarium cobalt has a metallic luster and dense, neodymium iron boron basically have an electroplated layer or it is easy to rust. But the above is for non-professionals and no professional equipment, the theory of the layman or the first line of the most simple way, for reference only.

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