Flexible magnets are the general term for magnetic elastomer materials and are made from raw rubber, magnetic powder (magnetic fillers) and other additives. Magnetism is the basic property of Flexible magnets. Flexible magnets exhibit different magnetic properties under the action of external magnetic field, which is of high practical value.
Since flexible magnet itself is not magnetic, its magnetism comes from the filling of a large amount of magnetic powder. Therefore, magnetic powder is indispensable for manufacturing flexible magnets. According to the composition, magnetic additives can be divided into metallic magnetic powder and iron cobalt powder, iron nickel powder and iron barium powder, among which the most widely used iron cobalt powder. Metallic powders are seldom used because they are expensive to add. Is currently used more ferrite powder, they are two valence metal compounds, iron oxide and some even with a ferrite magnetic powder, crystal morphology, particle size and uniformity for different lead to the final magnetic intensity.
The manufacturing process of Flexible magnets is similar to other products. In the formulation design, firstly, the variety, particle size and dosage of magnetic powder are determined. Next, the adhesive should be determined according to the use requirements, such as the use of natural rubber. In the process of processing, before or after vulcanization, it is necessary to add the magnetization process that other products do not have, so as to endow the product with permanent magnetism. The advantage of presulphide is that the external magnetic field is the same, and the rubber network is relatively smooth. After vulcanization, the permeability is poor, but the operation is convenient. All in all, there are advantages and disadvantages.
Used to characterize the magnetic parameters with magnetic induction intensity, the residual magnetic sensibility, magnetic energy product, such as magnetic induction intensity in the most commonly used, and its unit of measurement for gaussian (GS), general magnetic rubber requirements to the range of 100-600 GS.
Traditional use of Flexible represented by cold storage library door sealing strip, but with the development of high and new technology and home appliances to enter homes, the application of the magnetic rubber also appears with each passing day, application areas including refrigerator sealing strip, the computer memory devices, television sound, teaching AIDS, toys, medical equipment, etc.
The Printable Magnets invented by Newlife Magnet have turned Flexible Magnets into a printing medium that extends the application of Flexible Magnets.