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And let's talk about the permanent magnet:

Permanent magnet material is the first kind of magnetic material found and used. The earliest invention of the guide (called snan) was made from magnetite in the ferrite. There are many kinds of permanent magnet materials, and they are also widely used.

The commonly used permanent magnet material has four magnetic properties:

(1) high maximum magnetic energy product. The maximum magnetic energy product is (BH) m is a measure of the maximum magnetic energy density that is stored and available for the unit volume of permanent magnetic materials.

(2) high coercive force. The coercive force [symbol (H) c] is a measure of permanent magnetism that is resistant to magnetic and non-magnetic interference.

(3) high residual magnetic flux density (Br) and high residual magnetization intensity (symbol for Mr). They are the measurement of magnetic field intensity in the air gap of permanent magnetic materials.

(4) high stability, i.e., high stability of environmental factors such as interference with magnetic field and temperature and vibration. Current commonly used permanent magnet materials mainly include: (1) important rare earth permanent magnet, this is the highest current maximum magnetic energy product categories: permanent magnet materials, for the rare earths elements and elements of iron group as the main component of intermetallic compound (also called intermetallic compound).

Metal permanent magnet materials. This is a large class of applications and the development of early iron and iron group elements (such as nickel, cobalt, etc.) as an important component of the alloy type permanent magnet material.

There are aluminum-nickel-cobalt (AlNiCo) system and Fe-Cr-Co (FeCrCo) Department of two major categories of permanent magnet alloys. Aluminum nickel and cobalt permanent magnet alloy performance and cost is moderate, developed earlier, range performance with the chemical composition and manufacturing process changes is wide, it is also a wide range of applications.

Characteristics of iron-chromium-cobalt permanent magnet alloy magnetic properties is moderate, but the mechanical properties can be all kinds of mechanical processing and cold or hot plastic deformation, can be made into a tubular, sheet-like or linear permanent magnet material for a variety of special applications.

In addition to the three types of permanent magnetic materials, and some manufacturing, and application of the magnetic characteristics of each permanent magnet material. Permanent magnet materials such as powder, nano-magnetic materials, plastic plastic magnetic materials (can be used in a closed refrigerator door), machine permanent magnet materials.

The above is a related information about permanent magnet materials, and we would like to know more about the information about permanent magnet materials. Welcome to our company.

Our company is a high-tech enterprise integrating production, sales and development. Our company is mainly engaged in the production and operation of sintered ndfeb, bonded ndfeb, ferrite, rubber magnets, magnetic knobs, magnetic stands and other products. These products are widely used in electronic sound, instrument, toy gifts, leather handbags, packing boxes, process accessories, advertising printing and high-tech environmental protection. I plant through IS09001 and TS16949 quality system certification. Our company has also successively established shanxi, Qingdao, chengdu and shenzhen subsidiaries in the past few years. Besides, we also set up a plastic processing plant in shunde.

Our aluminum nickel and cobalt company always adhere to the "honest working, keep improving" the core idea, always adhere to the "quality is the enterprise life" principle, constantly improve the innovation ability, strive for customers need products. Our company has become the most powerful r&d and production enterprise of magnetic materials at home and abroad, and has become a designated supplier of famous enterprises both at home and abroad.