STRONG MAGNETS GMBH

The corrosion resistance of Neodymium magnet is considered poor, surface coating is highly recommended for Neodymium magnets. With the expansion of elevators, wind turbines and permanent motors application, the users need higher requirement on corrosion resistance of Neodymium magnet, as the glue cohesiveness of unplated magnet is much better than plated magnets, also unplated products are better in the security. Now, more and more customers tend to use unplated magnets, upon this condition we have developed ultralow weight loss magnets after the continuous innovation and study. Normally, the weight loss test is over 150mg/cm² in the industry of Neodymium magnet, this will be different for magnets produced from different material formulation and manufacturing process. A lot of our new magnets can reach to 1mg/cm², (Testing condition HAST standard for 168hrs), due to its very low weight loss, the corrosion resistance is excellent

Neodymium magnet (aka NdFeB magnet), is the third generation of rare earth magnet, which is composed of Neodymium, Iron, Boron and a few transition metals. With high remanence, high coercive force, high energy product, and high performance /cost, Neodymium magnet is currently the strongest magnet available in the world. Manufacturing Process Neodymium, Iron, Boron and a few transition metals will be mixed into the Neodymium powder, then fine Neodymium powder will be compacted in a die and sintered, fusing the powder in a solid state. There are two ways of pressing die pressing and isostatic pressing. Sintered parts normally need some finish machining in order to meet final tolerances. Machining & Tolerance Generally, Neodymium magnet must be machined using diamondgrinding techniques. Sometimes, machining operations may be performed on Neodymium materials with carbide tools, but surface finishes thus obtained may be less than optimal.

The injected Neodymium magnets are magnetic products mixed with different plastic products. Its main advantage is the diversity of molding offered by the injection process, allowing the products to be customized to meet the needs of the customers. Advantage Injected Neodymium magnets are more resistant to corrosion than sintered Neodymium magnets, with this character, they can be used in most applications without special coatings.Produced by injection process, injected magnets are with high precision and are tailored for each application. This type of injected magnets can be used under working temperature from 100oC to 200oC with good performance. Application The scope of application of the injected magnets is very wide, our magnets are widely in different industrial sectors, such as automotive, electronics, robotics ...