Aluminum alloy profile doors and Windows door and wall connection crack; Aluminum light box frame sliding door or open and close doors and Windows, frame fan vibration; When subjected to air pressure or sliding door, window frame deformation is big, shake, give a person a kind of insecurity.

The factors leading to the quality problem of this product are:

(1) The selection of doors and Windows profiles is unreasonable, the specifications and models are small, and the thickness of 6063 industrial aluminum profiles is thin.

(2) the connection and fixed immobility of the door and window frames with the wall is unreasonable.

(3) the structure is not scientific when the doors and Windows are pieced together, the connection is not firm, and the deformation is caused by the bearing force.

To deal with this problem, the following preventive measures should be adopted:

(1) Aluminum alloy profile doors and Windows should be installed according to the door and window hole specifications, 20x20 aluminum profile relative height, select the appropriate profile. For housing engineering projects aluminum alloy profiles cross section, flat window manufacturers are not less than 55 series of products; No less than 75 series of Windows; Interior life balcony flat window manufacturers are not less than 75 series of products. The thickness of aluminum alloy door and window profiles is not less than 1.4mm, and the wall thickness of the door profiles is not less than 1.5mm.

(2) when installing door and window frames, connectors should be selected to make reliable connection with the wall. The distance between a connector and the edge of the frame cannot exceed 180mm, and the distance between the connector and the edge of the frame cannot exceed 50Omm. The connecting parts should be aluminum plates of no less than 1.5mm in thickness, and have anticorrosion solution. The connection method is generally used to demagnetization automatic screw, shooting needle or open and iron foot buried in the wall, not round, needle immediately nailed the door and window frame to the wall fixed.

(3) when installing the composite doors and Windows, special attention should be paid to the effective setting of the stiff and medium, to ensure the overall bending stiffness of the pieced components and doors and Windows, and the specification and model interval of the connecting parts meet the provisions, and should be closely connected.

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