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仪器用久了,为什么不锈钢也生锈?

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仪器用久了,为什么不锈钢也生锈?

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【摘要】:
对于不锈钢,相信大家都不会陌生。不锈钢以其优异的耐蚀性、成型性、相容性以及强韧性等系列特点应用于食品、医疗、科研等领域。但是提到不锈钢,只是说明其具有高强度的耐腐蚀性,其抗腐蚀能力的大小是随其钢质本身化学组成、加工状态、使用条件及环境介质类型而改变的。如304不锈钢,在干燥清洁的大气中,有绝对优良的抗锈蚀能力,但将它移到海滨地区,在含有大量盐份的海雾中,很快就会生锈了;而316不锈钢则表现良好。因

  DUIYUBUXIUGANG,XIANGXINDAJIADOUBUHUIMOSHENG。BUXIUGANGYIQIYOUYIDENAISHIXING、CHENGXINGXING、XIANGRONGXINGYIJIQIANGRENXINGDENGXILIETEDIANYINGYONGYUSHIPIN、YILIAO、KEYANDENGLINGYU。DANSHITIDAOBUXIUGANG,ZHISHISHUOMINGQIJUYOUGAOQIANGDUDENAIFUSHIXING,QIKANGFUSHINENGLIDEDAXIAOSHISUIQIGANGZHIBENSHENHUAXUEZUCHENG、JIAGONGZHUANGTAI、SHIYONGTIAOJIANJIHUANJINGJIEZHILEIXINGERGAIBIANDE。 RU304BUXIUGANG,ZAIGANZAOQINGJIEDEDAQIZHONG,YOUJUEDUIYOULIANGDEKANGXIUSHINENGLI,DANJIANGTAYIDAOHAIBINDIQU,ZAIHANYOUDALIANGYANFENDEHAIWUZHONG,HENKUAIJIUHUISHENGXIULE;ER316BUXIUGANGZEBIAOXIANLIANGHAO。YINCI,BUSHIRENHEYIZHONGBUXIUGANG,ZAIRENHEHUANJINGXIADOUNENGBUSHENGXIU。

  BUXIUGANGSHIKAOQIBIAOMIANXINGCHENGDEYICENGJIBOERJIANGUXIMIDEWENDINGDEFUGEYANGHUAMO(FANGHUMO),FANGZHIYANGYUANZIDEJIXUSHENRU、JIXUYANGHUA,ERHUODEKANGXIUSHIDENENGLI。YIDANYOUMOUZHONGYUANYIN,ZHEIZHONGBOMOZAODAOLEBUDUANDIPOHUAI,KONGQIHUOYETIZHONGYANGYUAN ZIJIUHUIBUDUANSHENRUHUOJINSHUZHONGTIEYUANZIBUDUANDIXILICHULAI,XINGCHENGSHUSONGDEYANGHUATIE,JINSHUBIAOMIANYEJIUSHOUDAOBUDUANDIXIUSHI。RUGUOBUXIUGANGJIECHUDEJIEZHIZHONGFUHANLVLIZI,BUXIUGANGJIUHUIFASHENGYINGLIFUSHI、KONGSHI、JINGJIANFUSHI,HUIJIAJUBUXIUGANGDESHENGXIUQINGKUANG。

  BUXIUGANGBIAOMIANZHANFUYOUJIWUZHIYE,ZAIYOUSHUIYANGQINGKUANGXIA,GOUCHENGYOUJISUAN,ZHANGSHIJIANYOUJISUANHUIDUIJINSHUBIAOMIANCHANSHENGFUSHI。

  ZAIYOUWURANDEKONGQIZHONG(RUHANYOUDALIANGLIUHUAWU、YANGHUATAN、YANGHUADANDEDAQI ),YULENGNINGSHUI,XINGCHENGLIUSUAN、XIAOSUAN、CUSUANYEDIAN,YINQIHUAXUEFUSHI。

  防止仪器的不锈钢被腐蚀的案例:

  DEGUOWIGGENSCHAOXIYANMOYI,WEILEBAOZHENGQIDAOTOUHESHAIWANGJUYOUGAOQIANGDUYIJINAIREXING,YINCIXUANZELEDEGUOYUANCHANDE1.4034MASHIBUXIUGANG。TONGGUORECHULIKEYIDIAOZHENGQILIXUEXINGNENG,QIZAIDAYU550℃GAOWENJIEZHIGONGZUOTIAOJIANXIADUANSHIJIANHUOZHANGSHIJIANSHIYONGSHI,RENGNENGBAOZHENGQILIANGHAOJIXIEXINGNENGDEGANGWEINAIREGANG,GENJUHEJINHANLIANGDEBUTONG(Al、Cr、Ni),ZUIGAOSHIYONGWENDUKEDA1150℃。ZAIBAOZHENGQIANGDUDEQIANTIXIA,QINAIFUSHIXINGXIAOGUOKENENGMEIYOUAOSHIBUXIUGANGS316DEYOULIANG。YINCISHIYANRENYUANZAICHULIWANYANGPINSHI,XUYAOJISHIJINXINGQINGXI,BINGZAIQINGXIGUOHOUZHIJIEJINXINGGANZAOBIANKEYOUXIAOBAOHUBUXIUGANGDAOTOUHESHAIWANG,FANGZHIQISHENGXIU。

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