The observation window of the vacuum fully enclosed cleaning machine plays an important role in the operation of the equipment. Its design and safety protection need to consider many factors.
First of all, the material selection of the observation window is the key. In order to withstand the pressure difference caused by the vacuum environment and possible chemical solvent erosion, high-strength and corrosion-resistant materials such as special tempered glass or organic glass are usually selected. Tempered glass has high mechanical strength and can effectively resist the impact force caused by internal pressure changes to prevent cracking. Organic glass, on the other hand, performs well in chemical corrosion resistance and is suitable for some working conditions with specific chemical cleaning fluids. For example, in the vacuum fully enclosed cleaning machine for semiconductor chip cleaning, an organic glass observation window resistant to strong acids and alkalis may be selected to ensure that it can maintain good transparency and structural integrity in the case of long-term contact with corrosive cleaning fluids.
Secondly, the sealing design of the observation window is crucial. Good sealing can ensure the stability of the vacuum environment and prevent gas leakage from affecting the cleaning effect. Generally, rubber sealing rings are used for sealing, and the material of the sealing ring must have good elasticity, temperature resistance and aging resistance. Its size and shape need to fit closely with the observation window and the equipment shell. During installation, it is necessary to ensure uniform force to avoid partial poor sealing. At the same time, the sealing structure should also take into account the replaceability of the observation window, so that it can be easily replaced when the sealing ring is aged or damaged without affecting the overall structure and performance of the equipment.
Furthermore, in terms of safety protection, the impact resistance of the observation window needs to be considered. Even if high-strength materials are used, the observation window may still face the risk of rupture in extreme cases, such as sudden loss of control of internal pressure or accidental external impact. Therefore, a protective net or protective baffle can be set on the outside of the observation window. When the observation window breaks, it can prevent glass fragments from splashing and injuring people, protecting the safety of operators. In addition, a pressure monitoring device should be equipped to monitor the internal pressure of the cleaning machine in real time. Once the pressure rises abnormally, an alarm should be issued in time and corresponding safety measures should be taken, such as stopping the operation of the equipment and slowly releasing the pressure, to prevent safety accidents caused by damage to the observation window due to pressure problems.
Finally, the size and position design of the observation window should also take into account practicality and safety. The size should be moderate, which can meet the operator's need to clearly observe the internal working conditions of the cleaning machine, but not too large to affect the overall structural strength of the equipment. The location should be selected in a place that is convenient for observing key cleaning parts, such as near the cleaning basket or the main area of the workpiece being cleaned. At the same time, avoid the observation window in a position that may be disturbed by the movement of other parts or easily collided, to ensure its stability and safety during the operation of the equipment, and provide strong guarantee for the efficient and safe operation of the Vacuum fully enclosed cleaning machine.
