One, the types of plastic steel doors and windows pulleys
1. Plastic steel doors and windows pulleys are mainly used to achieve a variety of equipment movement, because it is a simple machine, so it can be used for a variety of purposes, and it is also very common in plastic steel windows. Today, there are three types of plastic steel window pulleys on the market. One is the plastic pulley, another is the metal pulley and the other is the fiberglass pulley.
2. Position the plastic steel window pulley in perfect alignment with the chute line. Use this tool to slightly increase the width of the chute and increase the range of movement of the plus. Lift up and down, upside down. A better way is to add oil or grease, which not only lasts a long time but does not attract insects such as ants.
3. Plastic pulleys are hard but fragile and will polymerize over time, making the push and pull feel worse.
Two, the selection of plastic doors and windows
1. When buying plastic doors and windows, first make sure that the blades on the plastic doors and windows are flat smooth or flat, and each blade has been torn. Usually, high-quality plastic doors and windows can handle blade details better, especially those made of plastic, wood and bamboo, the texture of which will extend the service life.
2. Flat adjustment of plastic doors and windows. Check the degree of flatness and uniformity of the plastic doors and windows to ensure that the spacing between the leaves is constant and that the leaves have discoloration, discoloration, or noticeable color differences. The quality of the hardware will also affect the life of the window or door to some extent; the hardware used should look thick, have a good surface finish, and have a protective coating that is scratch-free and free of scuffs. The most important thing is to be able to open it flexibly.
3. Flexibility of plastic steel doors and windows. The adjusting lever of plastic steel doors and windows has two functions. One is to adjust the lift switch on the plastic steel door and window, and the other is to adjust the angle of the blade. When overhauling the adjusting lever, please hang the plastic steel doors and windows first to make sure the flat lift switch is smooth, and then turn the adjusting lever to check whether the blades can rotate freely.
4. Small assembly gaps between profiles, flat joint cutouts, height differences between overlapping parts of profiles, etc. Usually, for plastic steel doors, the main parts to be considered are the gap between the door frame and the door, door panel guard and door panel edge, various shutter profiles, sealing strips and so on. The spacing of the assembled door panels; open the door is not only flat, but also whether both doors are transparent after closing.
5. welded seams flush and flat, whether there are cracks, inside and outside the edge of the seams clean and beautiful, plastic steel doors and windows of the diagonal size measured with a box ruler, the diagonal size difference should not be greater than 3mm. the smaller the difference between the lines, showing that the process is more accurate, the easier the installation.
The above is this article for the types of plastic steel doors and windows pulley and plastic steel doors and windows selection method in detail. In this small editor suggests that for the use of plastic steel doors and windows, a long time you can apply some butter or oil there in the pulley, so that it is smoother in use. If.