Steel/Steel 2.4mm Series Blind Rivets KD METALS (JINGJIANG) CO.,LTD , https://www.toprivet.com
1. The outer dimension of the plastic window should be 30mm smaller than the window hole size, that is, the gap between the window and the wall is 15mm on each side;
Storage problem and cutting method of plastic window profiles
[Jiuzhi Plastics News] In order to ensure that the profiles are not deformed when assembling the window frame, the plastic window profiles are required to be stored in a warehouse at room temperature of 15-40 ° C, stacked flat (or use a special profile frame), the height does not exceed 1 m. It is forbidden to stack in the open air to prevent the profile from being wet and dirty. Profiles are required to be placed in ambient temperature for 48 hours before they can be cut and assembled. When cutting, pay attention to the surface of the protective profile without being scratched. The cutting of profiles is determined by the characteristics of the window type. The cutting size and cutting accuracy of the profile are very important, which directly affects the size and installation of the entire window. According to the determined window type, the blanking size of each profile assembled into the window is calculated, and the calculation basis is as follows:
2. The gap between the window sash and the window frame is 6-8 mm on each side;
3. The splicing size of the sash and the window frame is 6mm on each side;
4. The cutting tolerance is not more than mm;
5. The welding allowance is 2.5-3mm at each end;
6. Welding tolerance is not more than 2mm;
7. The reinforcing rib is 5 to 10 mm shorter than the smallest end of the profile.
According to the above 7 points, the pre-cut size of each type of material for the plastic window can be calculated, thereby performing batch blanking.