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How to determine a powerful magnet quality good

by:Newland     2020-04-23
Powerful magnets as part of speech of the sell like hot cakes compare the market products, the demand of the market is more and more big, the bidding is more and more big, a lot of magnetic iron manufacturers in order to better gain a better competitive advantage in the market, will fail inferior raw materials to reduce costs. So when buying powerful magnets must know how to distinguish the powerful magnet quality, so that we can buy more high-quality strong magnet. Identify methods: judge of the quality of the powerful magnets, mainly from the two angles to analyze: product performance, product outer tube powerful magnet performance: in view of the strong magnet performance standard is not a relatively uniform standard, under the resolution of time as long as the investigation of strong magnetic iron related parameters, such as: magnetic energy product, coercive force, remanence and related performance. Powerful magnets in different sizes with gauss meter or flux table is used to distinguish between powerful magnet magnetic energy product is impossible, now can only use static magnetic characteristics test instrument. Powerful magnet appearance: the appearance of the powerful magnet check mainly include five categories: 1. The magnet is have scratches on the ( Including the scratches, the line mark, mark, etc. ) 2. Is there is pitting on the magnet ( Including pitting, pits, bubble, scars, slag layer and partial thickness, plating tumor) 3. Is there are cracks on the magnet ( Including crack, crack, etc. ) 4. Is on the magnets have upon side ( Including the ke, collapse while, residual) 5. Sand holes ( Including sand holes, porosity, pore, particles, etc. ) See if there is a lack of edge Angle, plating are in good condition, whether the size meet the design requirements; Ndfeb usually have plating to protect its corrosion and rust. In general the same specifications of the magnet on the adsorption of a plane with a handle to identify the size of the magnetic WWW. yirongciye。 com
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