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    July 12

    学环境的帮我看看

    一个办公室,在沈阳.里面电脑机房的电脑(HP的)硬盘的线路板,在两年内出了10次左右故障. 时间为:07年四月,五月,十一月;08年三月,五月,九月,十二月;09年三月,六月.线路板上的小孔附近都有一圈黑色的.看到下面照片那些洞洞周围的黑色了把.该办公室旁边是一个燃煤锅炉. 办公室只有回风系统,没有新风系统.
     
     
    该办公室自己化验了空气中的银和铜(其实我也不知道他们为什么化验这两个指标,可能是看燃烧的煤中的成分?),结果是:银含量149,铜含量956.我现在正在问他们单位是什么,还没有得到回复.我估计是ug/m3.
     
    现在的问题是:
     
    1.线路板损坏有没有可能是由于空气污染造成的?
    2.如果真是由于空气污染造成的,为什么办公室里面的工作人员并没有感觉到呢?
    3.什么污染能腐蚀电路板?  
    4.如果真是由于燃煤锅炉的原因,那么夏天燃煤锅炉不工作的时候为什么电路板也坏过呢?
    5.就现有信息,要是去做检测的话,什么项目是必须测的呢? 我能想到的是:颗粒物,SO2,NOX,相对湿度,温度.
    6.有没有可能是电脑本身的原因呢?我的电脑就是HP的,散热很差...
     
    大家有什么思路赶快告诉我啊!
     

    Comments (5)

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    粉尘堆积+电脑散热差。。。
    July 12
    没啥思路,不过见过很多放在锅炉边上的电脑都没事,常年开着也挺皮实
    July 12
    Johnson 戴wrote:
    电器长时间运行焊锡会加速氧化。出现黑色并不一定是空气原因。
    July 12
    Johnson 戴wrote:
    就一台电脑么?如果有多台,可以对比试验。更换硬盘以后再测,如果只是HP出故障,那么与HP主板设计有关系。如果都出现故障,那么环境的可能性大。
    July 12
    Yan Zhangwrote:
    简单啊,把同类硬盘拿来放到环境测试箱内做该环境的加速测验.......failure replication....
    碳粉尘沉积下来很可能是导电的 (需要核实),在某一刻可能会发生catastrophic failure...就算夏天没有新沉积下来的,这种failure 也可能发生。因为冬天沉积下来的东西导致漏电或是什么的可能需要一段时间才会发生catastrophic failure.
    酸性物质加上moisture自然会腐蚀电路板。夏天的时候moisture大,与沉积的物质起作用。有时候腐蚀反而快。
    夏天温度高,也会加速反应。
    July 12

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