Permanent Rare Earth Neodymium Magnetic Bar / Rod 12000GS 25 * 100MM Coating SS304 / 316

Permanent Rare Earth Neodymium 12000GS 25*100MM Magnetic Bar / Rod Coating SS304 / 316

Production details

NdFeB Magnet

A permanent magnet is an object made from a material that is magnetized and creates its own persistent magnetic field. These include the elements iron, nickel and cobalt, some alloys of rare earth metals, and some naturally occurring minerals such as lodestone. Although ferromagnetic (and ferrimagnetic) materials are the only ones attracted to a magnet strongly enough to be commonly considered magnetic, all other substances respond weakly to a magnetic field, by one of several other types of magnetism.

Magnetic Bar

Magnetic bars are mainly used to filter various fine powders and liquids, iron-containing impurities in semi-liquids and other materials with magnetic properties. They are widely used in chemical, food, waste recycling, carbon black and other fields.

The production process:

Neodymium magnets are actually composed of neodymium, iron and boron (they are also referred to as NIB or NdFeB magnets). The powdered mixture is pressed under great pressure into molds. The material is then sintered (heated under a vacuum), cooled, and then ground or sliced into the desired shape. Coatings are then applied if required. Finally, the blank magnets are magnetized by exposing them to a very powerful magnetic field in excess of 30 KOe.

The magnetic bar is composed of an inner core and an outer cladding, and the magnetic core further comprises a cylindrical magnet block and a magnet piece. A good magnetic bar should have a uniform spatial distribution of the magnetic induction line. The maximum magnetic induction intensity point distribution should fill the whole magnetic bar as much as possible. Because it is generally placed in the moving product transmission line, the surface of the magnetic bar should have a small smooth resistance and no Environmentally harmful substances, avoiding pollutants and the environment.

Caution:

Neodymium magnets can be dangerous, as they generate extremely strong pull forces, therefore must be handled with care to avoid personal injury and damage to the magnets. Fingers and other body parts can get severely pinched between two attracting magnets. Neodymium magnets are brittle, and can shatter if allowed to slam together, launching small pieces at great speeds. Eye protection should be worn when handling there magnets.