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  • 洁净室的两种方式能及时消除静电
    浏览: 发布日期:2017-06-14
    1接地
    1 grounding
    接地是带电导体消除静电最为普遍、经济、简便、可靠的方法。
    Grounding is the most common, economical, simple and reliable method to eliminate static electricity.
    (1)洁净室内可能产生静电危害的设备、流动液体、气体或粉体管道应采取静电接地措施。
    (1) the electrostatic grounding measures should be taken for the equipment, liquid, gas or powder pipeline which may produce electrostatic hazard in the clean room.
    (2)电子工业洁净室的围护结构(吊顶、地面、墙、柱)应采用防静电装饰,可以抑制尘埃的带电吸附。
    (2) the enclosure structure (ceiling, floor, wall, column) of the clean room in the electronic industry should be protected against static electricity.
    (3)工艺设备接地。
    (3) grounding of process equipment.
    (4)办公设备应采用能防静电的材料制成并接地。
    (4) office equipment shall be made of antistatic material and grounded.
    (5)工作人员应穿戴防静电的无尘衣、鞋、帽、手套、腕带等。
    (5) staff should wear anti-static clothing, shoes, hats, gloves, wristbands, etc..
    (6)净化空调系统的送、回风口和风管管壁是易于产生静电的部位,在防静电环境中,这些部件的材料除了使用导电材料外,还应接地。
    (6) the clean air conditioning system and air inlet and outlet pipe wall is easy to produce static parts in anti-static environment, these parts in addition to the use of conductive materials, also should be grounded.
    2度控制
    2 degree control
    在众多消除静电的方法中,室内湿度控制也被认为可以用来减少和消除洁净室静电。通过在环境中保持高的相对湿度,在该区域内物体的表面将形成薄薄的湿气层,利用这一薄层来提供导电的通道使得可能产生的电荷流过该湿气层耗散静电荷。另外,薄薄的湿气层可以增加物体表面的润滑性,摩擦生电也将减少。一般来说,湿度越低,产生的电荷越多。但是资料表明,甚至在湿度高时也会产生显著的静电电压。
    In many ways to eliminate static electricity, indoor humidity control is also considered to be used to reduce and eliminate static electricity. By maintaining a high relative humidity in the environment, the surface of objects in the region will form a thin layer of moisture, the charge flowing through this layer to provide conductive channel makes possible the moisture dissipation of electrostatic charge. In addition, a thin layer of moisture can increase the lubrication of the surface of the object, friction will also reduce electricity. Generally, the lower the humidity, the more the charge. However, the data show that even when the humidity is high, there will be a significant electrostatic voltage.
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