Knife Edge Magnet Y30BH
The four basic properties of a magnet are: magnetism; The magnetic poles. Homopolar phase repel, heteropolar phase attract; Magnetization.
Basic properties of the magnet is called magnetic, is one has the poles (there may be a magnetic monopoles) magnetic field. Based on the lorentz's theorem, the magnetic field are all the phenomenon of electromagnetic field, or the result of the electronic movement. In other words, if there is no current or electronic movement, there is no magnetic field. Magnetic poles same-sex attraction between opposite sex repel. In addition, the magnetic field and also all charged body or charge (popular theory is that current). One of the most common has the following kinds: roughly magnets attract role of ferromagnet; Generators and motors; All these effects are the interaction between the electromagnetic field and the moving charge (current).
Ndfeb permanent magnetic material is a permanent magnetic material based on intermetallic compound Nd2Fe14B. Ndfeb has a very high magnetic energy product and JiaoLi, at the same time, the advantages of high energy density makes the ndfeb permanent magnet material in modern industry and the wide application of electronic technology, so that the instruments and meters, electronic motor, magnetization of the magnetic separation equipment miniaturization, lightweight, thin become possible.
Ndfeb's advantages are high cost performance, with good mechanical characteristics; Lack of Curie temperature in low point, temperature characteristic is poor, and is easy to be pulverization corrosion, must through the adjust its chemical composition and take surface treatment methods to improve, to reach the requirements of practical application.
Screwdriver with magnet head, it can hold the screw, easy to use. The clearance and seal of the magnet shall be based on whether the mating clearance between various profiles is tight, whether the mating incision is even, the height of the bonding of profiles is poor, etc.