The damage of plastic door and window hardware accessories is generally manifested as: hardware accessories are not firmly fixed, loose and fall off, pulleys, sliding hinges, etc. are damaged, and opening and closing are not flexible.

Causes of hardware damage:

Improper selection of hardware accessories, poor quality; no metal lining board is installed when tightening, and there is not enough installation strength.

Measures to prevent hardware damage:

(1) The model, specifications and performance of the selected hardware accessories should comply with the current national standards and relevant regulations, and be matched with the selected plastic doors and windows.

(2) For sliding windows with a width of more than 1m, or double-glazed doors and windows, double pulleys or rolling pulleys should be used.

(3) The aluminum alloy material should not be used for the sliding support hinge, and the stainless steel material should be used.

(4) Metal fittings must be installed with fastening screws. The thickness of the lining should be at least twice the pitch of the fasteners. It shall not be fastened on plastic profiles, nor shall it adopt non-metallic lining.

(5) Hardware accessories should be installed last, and door and window locks, handles, etc. should be assembled after the window and door are fanned into the frame to ensure the correct position and flexible switch.

(6) Pay attention to maintenance after the hardware is installed to prevent rust and corrosion. In daily use, open and close lightly to prevent hard opening and closing, causing damage.