How to decide on permanet magnet?

In a hysteresis coupling, why is Hysterloy the material of choice?
A hysteresis alloy’s composition, orientation and warmth deal with are optimized to provide most hysteresis losses. Usually supplies are engineered to cut back losses. Hysterloy is often equipped within the type of rings with a composition near that of Alnico 5. The rings are oriented circumferentially throughout a warmth deal with cycle that’s optimized for maximum losses. Read more

Magnetic Element Design: Magnet Characteristic Optimization for Manufacturability Enhancements

Designers and engineers that want to include a magnet into their software are sometimes not totally conscious of the mechanical traits of magnetic alloys.  Options which can be generally specified and produced on supplies resembling delicate metal, stainless-steel, aluminum, or brass will be very troublesome to supply on a magnet or included into magnet assemblies.

A lot of the problem relies on the composition of the magnetic alloy which is characteristically hard and brittle.  Hard and brittle is a short phrase that may be repeated fairly a bit when discussing the characteristics of magnets. Read more

Magnet Supplies Comparability Information

A buyer’s current four magnet sample request (related form/measurement in Neodymium, Samarium Cobalt, Alnico, and Ceramic Ferrite) illustrates among the challenges related to choosing the right magnet materials. As an alternative of merely fulfilling this request, we took the time to debate project specifics and discovered our buyer was excited by decreasing the price and sustaining as a lot efficiency as potential. We additionally found this undertaking required manufacturing run portions of magnets able to withstanding extended publicity to warmth and de-magnetizing fields. Every magnetic alloy gives distinctive traits which might be supreme to particular purposes. Protecting our buyer’s goal in thoughts we narrowed down the fabric options to neodymium or ceramic. Alnico was dominated out on account of its comparatively low vitality density and Samarium Cobalt due to its excessive value. Read more

Study About Magnet Makes use of for Expertise & Manufacturing

Strong ceramic and alnico magnets are crucial for digital know-how and permanent magnetic makes use of.

You might not notice it, however we rely on magnets for a complete host of commercial, digital, and shopper makes use of. Whereas fridge magnets are in most each house, most individuals don’t take into consideration their many technological makes use of. Nevertheless, musicians depend on them for his or her microphones, audio system, and even electrical guitar pickups, whereas the automotive business makes use of them for automobile odometers and lighters. Different widespread shopper functions embrace cell phones and listening to aids. Read more

What Is A Permanent Magnet AC Motor?

The vast majority of AC induction motors use no magnets, so why in the title we said a permanet magnt AC Motor?
A Permanent Magnet AC Motor has permanent magnets either attached to the surface of or embedded within the rotor lamination stacks of an induction motor. This allows for synchronous operation of the motor, which eliminates the rotor “slip” inherent in conventional AC induction motors and produces better efficiency over a wider speed range, while offering more precise speed control. In addition, losses inherent in typical AC induction aluminum conductor bars are eliminated. The net result is a more power-dense, higher efficiency motor as in the illustration below. Read more


Neodymium magnets are the strongest magnets on this planet. Due to their energy, even tiny magnets might be efficient. This additionally makes them extremely versatile; as every of us goes about our fashionable lives, we’re by no means removed from a neodymium magnet, you might be prone to have one in your pocket proper now, or if you’re studying this text on smartphone, you may even have one in your hand! Read more

Magnetic Sensor Triggering

Permanent magnets are used to “trigger” magnetic sensors in a variety of applications. There are two main styles of magnetic sensor, the reed switch and the Hall Effect. Dura can provide a permanent magnet or turn-key package for integration into a sensor application.

Several parameters must be determined in order to select the proper magnet.

Sensor style (Hall Effect or Reed)
Trigger threshold (Hysteresis)
Mechanical movement (Magnet relative to the sensor)
Environmental conditions
Dimensional requirements
Proximity of flux biasing alloy Read more


When guitar buying at a retail outlet or on-line, you’re sure to run throughout point out of alnico pickups. What does that mean? What are alnico pickups and what do they do this non-alnico pickups don’t?

First let’s clarify the phrase itself. Alnico is an acronym comprising the primary two letters of three different metallic components, aluminum, nickel and cobalt. Read more

magnet for clunker

We discussed how the worldwide push for renewable vitality sources,significantly wind vitality, can have optimistic implications for designers and producers  motors and mills. This is a doable windfall for suppliers of copper wire, metallic, vitality electronics and eternal magnets – these commodities compose the “guts” of the machines that convert echanical vitality to electrical vitality and vice versa. I moreover well-known throughout the push to maximize effectivity and return-on-investment in these large, expensive electro-mechanical machines, one might or couldn’t choose to utilize eternal magnets, relying upon everfluctuating market circumstances and commodity pricing. Large electrical machines for wind mills generate (and devour) Read more

The difference Between Neodymium, Samarium Cobalt, & Ceramic

Magnets have come to a good distance for the reason that day of your youth once you spent hours arranging these brightly-colored plastic alphabet magnets to your mother’s fridge door. At present’s magnets are stronger than ever and their selection makes them helpful in all kinds of functions.

Rare earth and ceramic magnets – particularly massive rare earth magnets – have revolutionized many industries and companies by increasing the variety of functions or making current functions extra environment-friendly. Whereas many enterprise homeowners are conscious of those magnets, understanding what makes them totally different could be complicated. Right here’s a fast rundown of the variations between the 2 sorts of magnets, in addition to a synopsis of their relative benefits and downsides: Read more