The saturated magnetic flux of the DNS series magnetic powder core is 10500 Gauss, with a magnetostrictive coefficient close to zero and no noise issues. Featuring low core loss and low cost.
Iron silicon aluminum magnetic core is one of several magnetic components commonly referred to as magnetic powder core. Magnetic particle cores originated in the early days of electronic components. In the 1920s, iron powder cores were used in early radios. In the 1930s, ferrosilicon aluminum magnetic alloy and molybdenum permalloy alloy materials (80% nickel iron) were developed. High flux magnetic cores (50% nickel iron) were developed in the 1970s. By grinding existing metal alloys into fine powder particles, powder magnetic cores are manufactured, and then insulating materials are applied to the surface of these particles (which can control the size of the air gap). These powders are pressed into different shapes of magnetic core powder under high pressure. The core material of iron silicon aluminum magnetic powder is approximately 85% iron, 6% aluminum, and 9% silicon. By using special methods for powder processing, combined with the use of special coating materials, magnetic cores can be produced with lower losses than the original iron silicon aluminum powder and much lower losses than iron powder cores. Application: 1. Iron silicon aluminum magnetic cores are very suitable for energy storage and filtering inductors in switching power supplies. Compared to gap ferrite or iron powder cores of the same size and permeability, iron silicon aluminum cores with a 10500 Gaussian saturation provide higher energy storage capacity. 2.Compared to iron powder cores, iron silicon aluminum performs better at high temperatures, and in some applications, the size of iron silicon aluminum is also smaller than that of iron powder cores. 3. In noise filtering inductors that must pass through large AC voltages without generating saturation, it is very suitable to use iron silicon aluminum magnetic cores. The use of iron silicon aluminum magnetic cores can reduce the size of online filters because fewer turns are required compared to using ferrite. Iron silicon aluminum also has a magnetostrictive coefficient close to zero, which means it is very quiet in the rough work of noise or online current within the audible frequency range. 4. The characteristics of high magnetic flux density and low core loss make the iron silicon aluminum core very suitable for power factor correction circuit and one-way drive applications, such as flyback transformer and pulse transformer. Advantage: High saturation (1.05 Tesla) The magnetic core loss is lower than that of iron powder core (see the figure below) Moderate cost Low magnetostriction High Curie temperature Stable performance at high temperatures Various available shapes (E-shaped, U-shaped, block shaped, segmented cores, etc.)
Craftsmanship
Sendust core are formed by adding a certain amount of glass forming agent to the molten metal, and rapidly quenching and casting using a narrow ceramic nozzle under high temperature melting conditions. Amorphous alloys have the similar characteristics of glass structure, which not only make them have excellent mechanical properties, physical properties and chemical properties, but more importantly, the new technology of producing amorphous alloys using this rapid quenching method is less than the cold-rolled silicon steel sheet process. 6 to 8 processes can save energy consumption by 60% to 80%, which is an energy-saving, time-saving and efficient metallurgical method. Moreover, the amorphous alloy has low coercivity and high magnetic permeability, and its core loss is significantly lower than that of oriented cold-rolled silicon steel sheet, and its no-load loss can be reduced by about 75%. Therefore, the use of amorphous alloys instead of silicon steel sheets to manufacture transformer cores is one of the main means to save energy and reduce consumption in today’s power grid equipment.