Cleanroom windows are an important component of the cleanroom building structure. Here is a detailed introduction to them:
1. Functional Features
Isolation and sealing
One of the main functions of cleanroom windows is to isolate the indoor and outdoor environment of the cleanroom. It can effectively prevent external pollutants such as dust, microorganisms, and harmful gases from entering the clean room. For example, in clean rooms in the pharmaceutical industry, good window sealing performance can prevent bacteria, viruses, and other pollutants in the external air from contaminating the drug production process.
High quality sealing materials such as rubber waterstops are generally used. These sealing materials can fill the gaps between window frames and walls, ensuring air and water tightness. In advanced cleanrooms, high sealing performance is required for windows, and their air leakage rate is usually strictly controlled at a low level.
Visibility and Lighting
The windows of the clean room provide a pathway for observing internal operations. Operators can observe the operating status, experimental progress, or production situation of clean room equipment through outdoor windows. In semiconductor manufacturing factories, technicians can observe the operation of high-precision equipment such as lithography machines through clean room windows without interfering with the production environment inside the clean room.
Meanwhile, the windows also provide natural lighting for the clean room. Reasonably designing the position and size of windows can fully utilize natural light, reduce the use of artificial lighting, and thus save energy. However, in some photosensitive cleanroom processes, such as certain stages of photolithography, special shading treatments may be applied to windows.
Corrosion resistant and easy to clean
Due to the special environment of the clean room, window materials need to have good corrosion resistance. In the clean room of the chemical industry, it may come into contact with various corrosive gases or volatile chemicals. For example, in clean rooms with acidic and alkaline gases, windows are usually made of corrosion-resistant materials such as plastic steel, which can resist the erosion of chemicals and extend their service life.
The surface of clean room windows should be smooth and flat for easy cleaning. Due to the strict control of pollutants such as dust particles in clean rooms, if there is dirt or dust accumulation on the surface of windows, it can easily become a source of pollution. The commonly used glass surface has undergone special treatment to prevent dust from adhering, making it easier to remove stains during cleaning.
2. Material selection
Glass material
Tempered glass: high strength and good impact resistance. Tempered glass is not easily broken when subjected to accidental collisions or pressure changes in the clean room. Even if broken, it will still break into small particles with obtuse angles, reducing harm to personnel and equipment. For example, areas around clean rooms with frequent equipment handling or personnel activity are more suitable for using tempered glass windows.
Window frame material
Aluminum alloy window frame: Aluminum alloy material is lightweight, strong, and has good processing performance. It can be made into window frames of various shapes and sizes, and the surface can be treated with anodizing, electrophoretic coating, etc. to make it have good corrosion resistance and decorative performance. Aluminum alloy window frames are a common choice for most industrial and laboratory cleanrooms.
Plastic steel window frame: mainly made of plastic materials such as polyvinyl chloride (PVC), with a certain proportion of steel bars added to improve its strength. Plastic steel window frames have superior insulation performance, good corrosion resistance, and relatively low prices. Can be used in some cost sensitive cleanrooms or small cleanrooms with high requirements for chemical corrosiveness.
3. Installation points
Flatness and verticality
When installing clean room windows, it is necessary to ensure the flatness and verticality of the window frames. If the window frame is installed unevenly, it will cause the window to not close tightly, affecting the sealing effect. During the installation process, tools such as level gauges and plumb lines are usually used for measurement and calibration. For example, when installing the french window of a large clean room, the construction personnel will mark multiple measuring points on the wall and window frame to ensure that each part of the window frame can be accurately installed.
Connected to the wall
The connection between the window and the wall should be firm and reliable. Generally, pre embedded installation is used, where the window frame is pre embedded in the pre drilled groove on the wall and then fixed with sealant A.
Suzhou Pharma Machinery Co.,Ltd.
2025/05/06
Alice
