Testing Magnetic Field Range with Paperclips Make a holder for a bar magnet. You can make a simple magnet holder using a clothespin and a paper or Styrofoam cup. This method would be suitable for teaching elementary school-age students about magnetic fields. Tape one of the long ends of a clothespin to the bottom of [...]
Determining Factors that Affect Magnetic Field Strength Consider a magnet's characteristics. Magnetic properties are described using these characteristics: Coercive magnetic field strength, abbreviated Hc. This represents the point at which the magnet can be demagnetized (degaussed) by another magnetic field. The higher this number, the more difficult it is to degauss the magnet. Residual magnetic [...]
Strong Magnet Manufacturer Talk About How to Test the Suction Force of Magnets, and strong magnetic manufacturers analyze this method. The knowledge of magnets called magnets is usually associated with junior high schools in our primary schools. But little is known about magnets in textbooks. In general, we know the basic properties of magnets. Strong [...]
Can NdFeB Magnets Attract Pure Gold? The strong magnetic energy of NdFeB attracts any object with a larger magnetic permeability than air, but in our daily life, only iron, cobalt, nickel, and alloys of these three metals can come into contact with objects with a larger magnetic permeability than air. Gold This non-magnetic permeability metal [...]
Production & Precautions of Countersunk and Ring NdFeB Magnets With the continuous upgrading of various products, the current NdFeB magnets are no longer dominated by round and square shapes as before. Among them, NdFeB magnetic rings and countersunk NdFeB magnets The specific gravity is also relatively large. With the needs of some products, we also [...]
What is a Magnetic Coupling Magnetic couplings are known by professionals as magnetic drives and are widely used in a variety of general mechanical components. At present, magnetic couplings are used to connect two shafts, namely the motor shaft and the work shaft, and make them rotate together, eventually achieving the effect of transmitting torque.The [...]
How to Solve the Moisture-proof and Anti-oxidation Problems of Bonded NdFeB Magnets? Friends who have a little understanding of magnets know that compared with ferrite magnets, NdFeB magnets have high remanence, high coercivity, high magnetic energy product, high performance and price ratio, and are easy to process in various sizes. And the minimum specification, making [...]
The Role of Strong Magnets in Salt Spray Test Salt spray test of strong magnet: refers to an environmental test that uses artificial simulated salt spray environmental conditions created by salt spray test equipment to assess the corrosion resistance of product surfaces. Generally, 5% sodium chloride salt solution is used, and the pH value of [...]
Amazing! Bonded NdFeB Magnets are Applied to Permanent Magnet Stepping Motors Permanent magnet stepping motor, also known as PM stepping motor, the rotor uses permanent magnets. The stator of this stepping motor is processed into claw-shaped tooth poles by stamping, and the rotor is made of bonded NdFeB magnets with radial multi-pole magnetization. This kind [...]
What are the Common Coatings of Sintered NdFeB Magnet? Sintered ndfeb magnetic coatings are nickel, copper, chromium, gold, zinc, black zinc, epoxy resin. Its surface electroplating is not the same, its color is not the same, its preservation time is not the same, each has advantages, but also has disadvantages. 1) zinc: the surface looks [...]
Design and Optimization of Permanent Magnet Structure and Materials Technical Solutions Motor Stator or Rotor Design Background Because we don't know much about magnets, a large number of magnets are wasted. Through our diagnosis, maybe we can help you save more than 15% of the magnet usage. Idea 1. In order to maximize cost savings, [...]
Magnetic Performance Testing I. Magnetic Performance Test 1. Magnetic property detection A) test iteMs: Br, Hcb, Hcj, (BH)max, Hk, ms, μrec, Hk/ Hcj, etc. B) testing instrument: hysteresis loop tester C) test range: Hcj 50~20,000 Oe 2. High and Low Temperature Magnetic Properties Any temperature between -40 and 250 ºC can be tested. 3. Reversible [...]
