Product Information
The sintered AlNiCo magnets are mainly composed of aluminum (Al), nickel (Ni), and cobalt (Co), so it is al-ni-co. They also include copper and sometimes titanium. AlNiCo alloys are ferromagnetic, have high coercivity (antimagnetic loss) and can be used to make permanent magnets. Its composition is typically 8-12% aluminum, 15-26% nickel, 5-24% cobalt, up to 6% copper, up to 1% titanium, and the remainder iron.
Application
The sintered AlNiCo magnets are widely used in industrial and consumer applications where strong permanent magnets are needed, such as electric motors, electric guitar pickups, microphones, sensors, loudspeakers, magnetron tubes, and cow magnets. In many applications they are being superseded by rare earth magnets, whose stronger fields (Br) and larger energy products (BHmax) allow smaller size magnets to be used for a given application.
Magnetic Properties of Sintered Alnico Magnet
Alnico alloys make strong permanent magnets, and can be magnetized to produce strong magnetic fields. Of the more commonly available magnets, only rare-earth magnets such as neodymium and samarium-cobalt are stronger. Alnico magnets produce magnetic field strength at their poles as high as 1500 gauss (0.15 tesla), or about 3000 times the strength of Earth's magnetic field.
Alnico alloys have some of the highest Curie temperatures of any magnetic material, around 800 °C (1,470 °F), although the maximum working temperature is normally limited to around 538 °C (1,000 °F). They are the only magnets that have useful magnetism even when heated red-hot. This property, as well as its brittleness and high melting point, is the result of the strong tendency toward order due to intermetallic bonding between aluminium and its other constituents. They are also one of the most stable magnets if they are handled properly. Alnico magnets are electrically conductive, unlike ceramic magnets.
Production
The sintered AlNiCo magnets offer the best temperature characteristics of any standard production magnet material available. Alnico magnets can be used for continuous duty applications where temperature extremes up to 930°F (500°C) can be expected.
In order to quote you the best price, please provide us the following information.
Shape | Block/Rectangle/Square | Disc/Round/Cylinder | Ring/Countersunk |
Dimension | L (?) x W(? ) xT(?) | D(?) x T(?) | OD(?) x ID(?) x T(?) |
L: length. W: width, T: thickness, D: diameter, OD: outer diameter, ID: inner diameter. For other shapes, please tell more in details or drawing would be much appreciated. | |||
Coating | Zn, Nickel, Ni-Cu-Ni, Epoxy, Au, Silver or other ? | ||
Working Temperature | Normal or High temperature ? | ||
Package:
Normally packed in small box, and 8 boxes one carton. Some will use vacuum package, for bigger size, will directly pack in carton and use thick spacer to separate.
And for delivery by sea, will use wooden case or pallet to protect
