About NdFeB magnet:
Neodymium iron boron ( NdFeB) is a type of rare earth magnetic material.
NdFeB is the most advanced commercialized permanent magnet material available today.
This material has similar properties as the samarium cobalt except that it is more easily oxidized
and generally doesn't have the same temperature resistance.
However, NdFeB magnets have the highest energy products approaching 52MGOe and are
mechanically stronger than samarium cobalt magents. NdFeB material is more costly by weight than
ceramic or alnico but produces the highest amount of flux per unit of volume or mass amking it very economical for many applicantions. Their high energy products lend themselves to comnpact designs
that result in innovative applications and lower manufacturing costs.
Unprotected NdFeB magnets are subject to corronsion. Surface treatments has ben developed that
allow them to be used in most applications. These treatments include copper, silver,, gold, nickel,
zinc and tin plating and epoxy resin coating.
Beneficial characteristics of NdFeB magnets include their very high energy product, very high
coercive force, and moderate temperature stability. Drawbacks include lower mechanical strength,
and low corrosion resistance when not properly coated or plated.
Magnetic Grades and Temperature:
The Grade of a magent directly refers to the Maximum Energy Product of the material that composes the magnet. It in no way refers to the physical properties of the magnet. Grade is generally used to describe
how "strong" a permanent magnet material is. The energy products is specified in the unites Gauss Oersted.
One MGOe is 1,000,000 Gauss Obersted. A grade forty (N40) would have a Maximum Energy Product of 40 MGOe.The higher the grade the "stronger" the magnet.
Magnetic materials have a wide range of working temperatures. The following chart the various materials and their maximum working temperature. NdFeB material
We produce and provide Magnetic Dots that are used to hold paper or white board. We have offered these products in customized forms and sizes such as 40 mm dia and 50 mm diameter. Besides they have also been offered in variety of configurations such as Vinyl Foam and Foam Magnet. Applications: Used to hold paper Size Available: Customized Die Cut Variety of Configuration: Reflective Vinyl Foam
We have an edge in presenting Convergence Purity Magnet. It is basically a magnetic beam-adjusting device for use in the region of the neck of an in-line type color picture tube and is composed of three pairs of plastic magnet rings. Virtually each pair comprises 2-pole, 4-pole and 6-pole plastic magnet rings. The tool comprises a magnetic field distribution suited to a silky adjustment of the electron beam, as a result permitting centralization and rotation of electron beam in the order of the color picture tube. Neck Dia: 29 mm Size Available: For 14", 20", 21", 29" tubes