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6種超簡單的方法教你鑒別不銹鋼水箱304板材的真假

    shimianshangchangchangyoubufashangjiayongjiade304buxiugangbancailaizhizuoshuixiang,weikehudailailewufaguliangdesunshi,xiamianjieshao6zhongbijiaojiandandefangfalaijiandingbuxiugangbancaishifoushi304buxiugang。

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    全球彩票qq安卓版zaibuxiugangshichangzhongrenmendui304buxiugangderenshihuancunzaiwuqu。youbufenrenrenweiyongcitiexibuxiugang,nengxishangdejiushibuxiutie,xibushangdeshibuxiugang,haobuxiugangdoumeici。ranerjiuzheyiguandian,xiamianwojiangweidajiazuochupanduan,daodizenyangtongguozheyicixingxingzhilaibianbiechu304buxiugang。

    首先我們知道304不銹鋼屬于奧氏體型,但是奧氏體型是無磁或弱磁性,所以大家會認為好的不銹鋼是沒有磁性的。可是,人們缺忽略了一點就是304不銹鋼在因冶煉過程中造成其化學成分波動或加工狀態不同時可能出現磁性,可這不能認為是冒牌或不合格產品;另外304不銹鋼經過冷加工,組織結構也會向馬氏轉化,冷加工變形度越大,馬氏體轉化越多,鋼的磁性就越大。相反,質量次一點的200系列不銹鋼,很有可能不帶磁性,由此判定它是貨真價實的不銹鋼,就大錯特錯了。特別要提出的是,因上述原因造成的304不銹鋼的磁性,與其他材質的不銹鋼磁性完全不是同一級別的,也就是說304鋼的磁性始終顯示的是弱磁性。這就告訴我們,如果不銹鋼帶弱磁性或完全不帶磁性,應判別為304或316材質;如果與碳鋼的磁性一樣,顯示出強磁性,因判別為不是304材質。

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