Many people's doors and windows have been used for a period of time, and some problems have arisen. For example, if doors and windows are not closed tightly, they will leak. This makes us feel bothered. What are the reasons? The aluminum alloy doors and windows are not closed tightly . When aluminum alloy doors and windows are closed , how can we solve it? Let's learn about it together with Qijia Xiaobian!
What is the reason why aluminum alloy doors and windows are not closed?
1. Doors and windows open and close
If we have a block or resistance when we open or close, we need to spend more effort on switching, usually due to the following factors:
a. The door frame or the fan has been deformed, and the seal has loosened or fallen off.
b. Damaged hardware accessories.
c. Poor installation quality, excessive allowable deviations, and no timely adjustments to it. 
Prevention:
a. When installing windows and doors, we must install according to the construction sequence. During the installation, we must check and adjust the installation quality at any time.
b. For the position of its window frame and window hole, we must draw a center line for it. When the window frame is installed in the hole, it must be aligned with the center line and fixed, and then carefully adjust the verticality, horizontality, and straightness of the window frame. Angle, the error should be within the allowable deviation.
c. For sashes, before we enter the box, we must check how its diagonal and flatness are within the allowable deviation. After entering the frame, use a steel ruler and a feeler gauge to check the lap width and peripheral gap of the frame fan until it meets the requirements.
d. For some of its hardware accessories, we also need to install it correctly. If there is any wear, we must replace it in time.
e. Usual we are in use, do not hang heavy objects on the doors and windows, otherwise it will easily lead to deformation of doors and windows. And when we open and close, we must lightly open and close, so as to extend its useful life. 
2. The hardware accessories have been damaged
Hardware accessories have been damaged, so the doors and windows are not strictly closed and flexible. This may be due to the fact that these accessories are not firmly fixed, loose and fall off, and the pulleys and sliding hinges are damaged. The reasons for the damage of hardware accessories are mostly as follows: improper selection of hardware accessories, poor quality; metal liners are not set when tightening, there is not enough installation strength. 
Prevention:
a. When selecting hardware accessories, we must choose the quality standards, whether it is its model, specifications or performance must comply with national standards, and must be applicable to the purchase of windows and doors.
b. If the width of the sliding window exceeds 1m, we would prefer to choose double pulleys or rolling pulleys.
c. For the installation of these hardware accessories, we should do so after the doors, windows, locks, handles and other parts are installed. This will not only ensure the accuracy of the installation, but also be more flexible to use. 
Xiaobian's words: The above is the small series and everyone to explain the relevant knowledge of aluminum alloy doors and windows closed , I hope you can give some reference! More related content, you can pay attention to the Qi family information, follow-up will present more exciting content!
Aluminum alloy doors and windows shut down
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