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What material and structure are used for the door of the air shower pass box?

What material and structure are used for the door of the air shower pass box?

The air shower pass box is an auxiliary equipment for clean rooms, mainly used for the transfer of small items between clean areas and non-clean areas, to reduce the number of times the clean room door is opened and minimize the pollution to the clean room. Its working principle is to filter the air through a high-efficiency filter through a fan to form a clean airflow, which is sprayed from all directions by a rotatable nozzle to the surface of the object, thereby effectively removing dust, hair, and other pollutants on the surface of the object.
In the air shower pass box, the material and structure of the door are crucial. Its door is usually made of stainless steel, and the most common one is 304 stainless steel. This material has strong corrosion resistance and high hardness. From a structural point of view, the door will be equipped with high-quality sealing strips around it, such as EPDM sealing strips, which can maintain good elasticity in the temperature range of -40℃ to 120℃. The matching accuracy between the door and the door frame is very high, and the gap can be controlled between 1-2 mm to ensure good sealing.
Why choose stainless steel? Because in the clean room environment, it may be exposed to various chemical reagents and high humidity environments, stainless steel can effectively resist the influence of these adverse factors. As for the sealing strip, EPDM is not only resistant to aging but also has good resistance to a variety of chemicals.
To ensure durability, the stainless steel door will be subjected to special surface treatment during the production process, such as brushing, to increase its surface hardness and wear resistance. At the same time, the sealing strip, its elasticity, and integrity are checked regularly, generally once every six months. If the strip is found to have aging, deformation, and other problems, it should be replaced in time. When installing the door, strictly control the installation accuracy, and use professional debugging tools to ensure that the gap between the door and the door frame meets the standard. In addition, in daily use, avoid violent opening and closing of the door to extend the service life of the door and ensure its sealing.
In short, the door of the air shower pass box ensures its durability and sealing by selecting high-quality stainless steel materials and reasonable structural design, as well as taking scientific and effective measures in various links such as production, installation, use, and maintenance, thereby providing reliable protection for the delivery of items in the clean room.