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dn40镀锌钢管
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  dn40镀锌钢管上颗粒物的产生缘故

  在dn40镀锌钢管表层上遍布有相近小米粒的小颗粒物,习惯性上称之为锌粒。它导致表层不光滑高低不平,不但防碍美观大方,并且对应用也危害。根据x光线显微镜机构剖析和电子探针剖析都明确颗粒物具体是关键是铁锌化学物质,其构成为FeZn10。产生锌粒的关键缘故是:

  1、DIZHAGUODUOBEIJIXIESHEBEIJIAOBANERFUSHANGLAI,JINERSUIZHEXINYENIANFUZAIREDUXINGANGJIANBIAOCENGSHANG。

彩经网  2、XINYEWENDUGUOGAO,BIRUCHAOCHU470℃SHI,SHIDIZHAFUSHANGLAI。

  3、XINYEZHONGLVHANSHUILIANGGUOGAOSHI,HUIJIANSHAOTIEZAIXINYEZHONGDERONGJIEXING(XINYEZHONGDELVHANSHUILIANGXIAOYU0.15%SHI,TIEDERONGJIEXINGWEI0.03%)。CHUCIZHIWAI,LVDUITIEYOUHENDADEQINHELI,NEIYANGLVJIUHUILAOLAODIDILAZHUTIE,ZULANXINZHAXIAYIERPIAOFUYUXINYEZHONG。

  4、WEILIELVHEJINZAIXINYEZHONGBUKEYICHONGZUWAIKUOSAN,YIKELIWUFANGSHICUNYOU。


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