Unverified82% confidenceDecision RuleTime unknown
钕铁硼(NdFeB)磁体磁力最强但怕潮易生锈，浴室/厨房水槽区应选表面镀镍或环氧树脂封装的磁体，或整体做ABS/硅胶包胶处理，防止3-6个月后锈蚀掉磁
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82%
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Unverified常见磁吸收纳盒磁铁分为铁氧体（弱、便宜、耐锈）和钕铁硼（强、需防锈镀层），钕磁铁在潮湿环境若镀层破损会生锈失磁，卫浴场景应选封装在盒体内不外露的钕磁款77% similarUnverified选购时确认磁铁是否内嵌封装：外露磁铁在潮湿环境（卫生间/厨房）易生锈失磁，PET或塑料全包裹磁铁的款式防潮性更好，寿命更长77% similarUnverifiedN52钕磁铁磁力约为N35的1.5倍，相同体积下吸力更强，是重物磁吸盒的常见配置；表面镀镍层可防锈但受潮仍会缓慢氧化75% similarUnverified磁吸刀具条挂放前刀身需完全擦干，湿刀长期磁吸接触点会因电化学效应加速刀身与磁条接触处生锈，且水滴会腐蚀磁体涂层导致退磁75% similarUnverified磁力贴的磁性强度取决于磁铁类型：钕磁铁（NdFeB）吸力强，单片可吸附3-5张A4纸于冰箱表面；铁氧体磁铁吸力弱，仅适合吸单张便签。选购拼图或数字学习类需要频繁移动的产品，认准钕磁铁材质74% similar
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