202193 · Model of a magnetic compass used in ancient China. An iron spoon manufactured from naturally occurring magnetite is placed on a non-magnetic plate. When it comes to rest after turning, the handle points south and …
view moreOn combining this with Equation 12.3.1 12.3.1 and B = mH B = m H, we readily see that the magnetic susceptibility (which is dimensionless) is related to the relative permeability μr = μ/μo μ r = μ / μ o by
view more202291 · The most common rare-earth magnet alloy, a combination of iron, neodymium, and boron, has a Curie temperature in the range of 300-400°C, depending on the exact mix of elements.
view more2013316 · Today, the magnetic materials the engineer has to work with are silicon steel, nickel iron (permalloy), cobalt iron (permendur), amorphous metallic alloys, and ferrites. These also have spin-off material variants, such as moly-permalloy powder, sendust powder, and iron powder cores.
view more2024523 · From the Lorentz force equation we know that the magnitude of the force between a current carrying wire and a magnet field is defined as F = ILB F = I L B. This implies that there must be a current across the wire in order for there to be a force. Now let's take a look at ferromagnetic materials such as iron for example.
view moreAlnico is the name for an iron alloy that primarily consists of iron, aluminum (Al), nickel (Ni) and cobalt (Co). That is why it is called al-ni-co. It can also be spelled AlNiCo. Sometimes, it may also contain copper and titanium. Alnico alloys are used as permanent magnets, as they are ferromagnetic.
view moreFerromagnetic materials are those which can be magnetised and are usually made from soft iron, steel or various nickel alloys. The introduction of this type of material into a magnetic circuit has the effect of concentrating the magnetic flux making it more concentrated and dense and amplifies the magnetic field created by the current in the coil.
view moreEach spinning electron causes a magnetic field to form around it. In most materials, the magnetic field of one electron is cancelled by an opposite magnetic field produced by the other electron in the pair. The atoms in materials materials such as iron, cobalt and nickel have unpaired electrons, so they don't cancel the electrons' magnetic fields.
view moreBased on over 30 years' experiences in design, production and service of crushing and s
GET QUOTE