How to replace the broken bridge aluminum door and window slide? Select and replace methods

Slide brace is one of the important hardware accessories of casement window, it not only assumes the switch function of the window sash, but also the important parts to prevent the window sash from falling, but with the increase of use time, the slide brace is subject to wind and rain and stress erosion, it is likely to deformation and rust, so it needs to be replaced, then how to replace the broken bridge aluminum doors and Windows slide brace? The following sorted out the selection and replacement method of the broken bridge aluminum doors and Windows slide for everyone's reference.

First, the selection of broken bridge aluminum doors and Windows slide

1. The load-bearing requirements of the slide brace = the weight of the window sash (glass weight + the weight of the window sash profile) × safety factor 1. 3. The series or specifications of the load-bearing requirements of the slide can be obtained according to the "Slide Aluminum Window Specification Table".

2. The length specification of the slide brace is selected: under normal circumstances, it is 2/3 of the window width, and when the window is light, it can be 1/2. When the upper hanging window is selected as a slide brace, it is generally 1/2 of the window height.

3. The upper limit of the opening Angle of the window sash is related to the selection and installation position of the slide brace series.

4. The use of sliding bridge aluminum casement window, generally the width of the sash is not more than 750mm.

5. The sliding brace of the broken bridge aluminum doors and Windows should be made of high-quality 304 stainless steel, in line with JG/T127-2014 "Building hardware, sliding brace" standard.

6. The sliding brace of the broken bridge aluminum doors and Windows should be kept good in all aspects after strict testing of repeated opening and closing.

Second, the replacement method of the sliding brace of the broken bridge aluminum doors and Windows

1. Installation of slide brace

(1) M5x8 stainless steel countersunk head screws or ST4.2/4.8x 12 stainless steel self-tapping pan head screws are used for fastening the slide stay.

(2) Use screws or screws reasonably according to the actual situation, and countersunk screws must be used where there are countersunk holes; Pan head screws are used in the chute or where there is no countersunk hole. The screws are used correctly to ensure the firm and reliable installation of the slide.

(3) The slide brace must be closely connected with the window sash and window frame, and must not be moved lightly. All screw holes must be screwed or screwed, less than one will affect the load bearing when the slide is used.

(4) It is recommended that when the thickness of the profile is less than 1.4mm, the bottom of the broken bridge aluminum profile should be padded with steel and fixed with pan screws.

2. Precautions

(1) When installing the slide, it should be ensured that the distance between the window frame fan is the stack height of the slide, generally 16.5~17 mm, different series and specifications have different stack heights, the specific technical parameters see the slide series and physical objects.

(2) During installation, it should also be noted that the sliding brace of the broken bridge aluminum doors and Windows should be as close as possible to the outside edge of the window frame, and the triangular head should be placed on the edge of the frame, while ensuring that the upper and lower two window braces should be in the same vertical plane.

(3) The bottom groove of the slide should avoid falling into the cement lime and other hard debris, acid and alkaline corrosion and too much dust, otherwise it will lead to the window switch is not smooth, and some lubricating oil should be added regularly in the slide.