Characteristics of friction hinge and its application in plastic casement windows_Industry News_Tall

In recent years, plastic casement windows have become increasingly popular in the market. As a result, friction hinges have also gained widespread use as accessories for these types of windows. However, there are certain limitations and considerations that need to be taken into account when it comes to the installation and application of friction hinges.

One of the main issues with using friction hinges is their compatibility with the profile series of various large profile manufacturers in China. In order to ensure the proper installation of the hinges, it is necessary to use the inner or outer fan series with European grooves. However, selecting this type of profile may not meet the performance requirements of casement windows or allow for the normal use of friction hinges. Specifically, if the hinge is installed on the edge of the European groove, it will reduce the overlap between the window frame and the fan, which can affect the energy-saving performance of the window. On the other hand, if the hinge is installed in the European groove to meet the overlapping requirements, it may cause issues such as the rubber sealing strip being scraped off or difficulty in opening and closing the window sash, leading to damage to the friction hinge. Therefore, it is important to choose a matching lock when using friction hinges, and for optimal energy-saving performance, single-point handle locks should be used instead of locks with drivers. Additionally, profiles with flat-opening stiles or flat-opening Z-shaped stiles are recommended for use with friction hinges, as they are more compatible.

Another limitation of friction hinges is their suitability for outward-opening windows. These types of windows are usually exposed to the natural environment and may be subject to strong winds. While friction hinges have self-positioning functions, they may not be able to self-lock in strong winds, especially when facing headwinds. This lack of a third point of fixation reduces the safety effect. Additionally, the four bars of the hinge on an outward-opening fan are suspended in the air after the fan is opened. Over time, due to the window sash's gravity and exposure to sun, rain, and wind, the hinge may experience fatigue and deformation, affecting the normal use of the window sash. Furthermore, if there is a problem with the hinge on a higher floor, it can be difficult to repair.

Moreover, friction hinges may not be suitable for use with large sashes, particularly in the case of outward-opening windows. If the width of the sash exceeds 600mm, it can pose a hazard, especially for the elderly and children who may lean forward when using the sash. Additionally, the weight of the person closing the sash adds pressure to the hinge, resulting in faster wear and tear. To ensure safety and proper functioning, the author suggests that the width dimension should be limited to 300mm-550mm. In the case of top-hung windows, where the sash is supported by the force of the friction hinge, it is important not to exceed the hinge's support capabilities, as it can affect the opening angle of the sash.

In conclusion, while friction hinges have become widely used as accessories for plastic casement windows, it is crucial to consider their limitations and ensure proper installation and application. The choice of profile series, selection of matching locks, suitability for outward-opening windows, and size limitations are all factors that need to be taken into account to ensure the optimal performance and longevity of the windows. By carefully considering these factors, industry professionals can make informed decisions when it comes to the installation and use of friction hinges in plastic casement windows.

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