1. Self-positioning force of slide brace
The sliding bar used in the internal and external casement Windows must be not less than 40N in the performance regulations, otherwise the switch positioning ability of the window sash becomes unstable, which will cause the window to open and close difficult.
2. Window opening and closing force
The proportion of the slide brace used in the internal and external casement Windows shall not exceed 40N, and the opening and closing force of the slide brace commonly used in the external hanging window shall not exceed 40N within the opening range of the window sash of 0-300mm.
3. Door and window gaps
When the window sash is closed, under the action of external force, the sealing gap change value between the fan and the frame of the window corner where the slide is installed should not exceed 0.5 mm
4, the rigidity of the slide
The judgment of the rigidity of the slide brace should be judged according to the test, that is, the sash suffers different forces in three different parts to distinguish whether the performance of the slide brace meets the requirements.
(1) After the window sash is subjected to 300N resistance in the process of enabling the larger opening category, it can still be used normally and the three performance requirements of its own self-positioning force, opening and closing force, and the window sash frame gap are still excellent.
(2) The window sash is subjected to 300N friction resistance when it is closed, and the switch of the window sash can still be normally activated, and the three performance of the positioning force, opening and closing force, and the window sash frame gap are still excellent requirements.
(3) The window installed with the positioning device, under the condition of opening to the positioning device at the positioning point, under the external force of 300N, it can still meet the normal opening of the window and meet the three performance requirements of the positioning force, opening and closing force of the window itself and the gap of the window sash and window frame.
5. Open and close multiple times
The repeated opening of the window sash 25,000 times is an experiment that doors and windows are bound to experience, only after 25,000 times of repeated opening and closing, the opening and closing force of the doors and Windows should not exceed 80N is qualified.
6, slide strength
The repeated opening of the window sash 25,000 times is an experiment that doors and windows are bound to experience, only after 25,000 times of repeated opening and closing, the opening and closing force of the doors and Windows should not exceed 80N is qualified.
7. Hang heavy objects from window sashes
After the window sash is opened, the slide brace is subjected to 1000N pressure for 5 minutes. If all the components of the slide brace are intact, the door and window slide brace is a qualified product.
