Samarium cobalt magnet) also known as samarium cobalt magnetic steel, samarium cobalt permanent magnet, samarium cobalt permanent magnet, rare earth cobalt permanent magnet. Consists of samarium, cobalt and other rare earth metal material proportioning, smelting alloy, after grinding, molding, sintering, made of a magnetic material, high magnetic energy product, low temperature coefficient, the highest working temperature is 350 ℃, no negative temperature, in operating temperature above 180 ℃, and the temperature stability and chemical stability than ndfeb permanent magnet materials.It has strong corrosion resistance and oxidation resistance. Therefore, it is widely used in aerospace, national defense, microwave devices, communications, medical equipment, instruments, instruments, various magnetic transmission devices, sensors, magnetic processors, motors, magnetic cranes and so on.Introduction to theSamarium cobalt magnet (SmCo)One of the rare earth permanent magnets, there are mainly SmCo5 and Sm2Co17 components.Magnetic energy accumulation, coercivity reliable, high temperature resistance. Is the second generation of rare earth products,Samarium cobalt magnet parameters:Maximum magnetic energy product :(Bhmax)160-150 KJ/m3 (15-35 MGoe)Maximum operating temperature (temp.tw)250-350.Intrinsic coercivity (HcJ)KA/mMagnetic inductive coercivity - Hcb(650-870 KA/m), 12 (Koe) 4 -Residual magnetism - Br8 and 12 (KGs), 0.8 1.2 (T)Remanent reversible temperature coefficient (Br)0.04-0.01Samarium cobalt magnet (SmCo) is better than neodymium iron boron magnetic steel in anti-corrosion, rust and high temperature resistance.Into a new era of magnetic transformation of gravity.Samarium cobalt magnet is a rare earth magnet, which is made by mixing samarium, cobalt and other rare earth metals. Developed successfully in 1970, samarium cobalt magnet is the second strongest magnetic magnet today, with high maximum magnetic energy product (BHmax), high coerce, fragile, and easy to crack. The maximum magnetic energy product of a samarium cobalt magnet ranges from 9 MGOe to 31 MGOe. Samarium cobalt magnets have two constituent ratios: 1:5 and 2:17. [22] for example, the 2:17 alloy has a maximum magnetic energy volume of 26 MGOe, a bias of 9,750 oersted, a Curie temperature of 825°C and a maximum operating temperature of 350°C. [23]Attribute characteristics1. Very coercive.2. Good temperature stability.3. It is expensive and susceptible to price fluctuations (cobalt market price is sensitive).Production and processingSamarium cobalt magnet production process: ingredients → melting and making ingots → making powder → pressing type → sintering and tempering → magnetic detection → grinding → cutting → finished products.These alloys are usually processed in a non-magnetized state. Samarium cobalt is ground with wet fine grinding (water-cooled cooling) and diamond grinding wheels. This process is required if drilling holes or other functions are limited. Grinding waste must not be completely dry because samarium cobalt has a low ignition point. A small spark, such as one with static electricity, can be easily burned. Fires can be extremely hot and difficult to control.

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