Introduction to Iron-Aluminum Soft Magnetic Alloys (GB/T15004-1994)
Soft magnetic alloy is a kind of soft magnetic alloy with low carbon content and high silicon content, which is composed of ferrite and other two element alloys. Soft magnetic alloy is widely used in various fields because of its good magnetic properties and good machinability.Soft magnetic alloys of iron-aluminum are a special type of soft magnetic alloy, which are proposed and developed relatively late compared with other ferrous alloys such as permalloys and iron-cobalt alloys. GB/T15004-1994 Specifications for Iron-Aluminum Soft Magnetic Alloys regulates the technical properties of this class of alloys.
The composition of iron-aluminum soft magnetic alloy contains 18-30% of aluminum, usually 25-30%, which is the main element of this alloy. In addition to aluminum, iron-aluminum soft magnetic alloy also contains iron, silicon, nickel and other trace elements, and V, Ti, Mn and other element are also added according to formula. The production process of iron-aluminum soft magnetic alloy is more complicated than other soft magnetic alloys, which requires strict control of the casting, heat treatment and mechanical processing processes.
Application of Iron-Aluminum Soft Magnetic Alloys
Iron-aluminum soft magnetic alloys have excellent electrical properties and good mechanical properties, which make them suitable for many fields. They are widely used in various electronic equipment, electronic motors, meters, relays and tape recorders.
In the field of household appliances, iron-aluminum soft magnetic alloy switches, fans and other components are often used, and its advantages of small volume and energy saving are also used in lighting fixtures. In the automotive industry, iron-aluminum soft magnetic alloys are used in car alternators and starters as components of a rotor, shaft and bearing holder. In medical equipment, iron-aluminum soft magnetic alloys are used in various electronic parts and various positioning parts to provide the necessary magnetic force.
Conclusion
Iron-aluminum soft magnetic alloy is a kind of material with excellent magnetic properties and low cost. According to GB/T15004-1994, different grades of iron-aluminum soft magnetic alloy are refined and produced to meet the needs of different fields. Its excellent powder metallurgy process design and production process control make its characteristics of low loss, high permeability and good temperature stability, continue to provide strong support for many fields.
