Preventive measures for stretch film rupture

When you buy a stretch film, you will definitely understand the relevant content of the stretch film, including precautions, contraindications, and common problems. Among them, the rupture of the stretched film is almost everyone's concern. There is a difference in the size of the stretched film. If the degree of cracking is within the range of use, we can repair it by some means. Otherwise, the degree of cracking is too large and it should be replaced immediately. The main reason for the damage of the stretched film is due to improper operation in the production process. Therefore, in order to ensure the good use of the stretched film, it is necessary to take relevant precautionary measures. Now as a professional manufacturer, I will tell you how our company produces stretch film.

1. Adopt blank holding device and appropriate blank holding force. Blank holding device is used to make the flange part of the blank have a proper axial pressure to compact, so as to improve the ability of the stretch film material to resist tangential bending deformation.

2. Choose a reasonable degree of deformation with good plasticity. The degree of deformation can be greater. Cylindrical parts with large heights can be used for multiple times of stretching. Otherwise, wrinkles and cracks will occur due to the excessive deformation of the flange. .

3. Increase the non-stamping process to improve the plasticity of the stretched film material. The deformation of the stretched part is large, and the deformation amount of each part is also inconsistent. It gradually increases from the bottom to the top, and the deformation and hardening at the mouth of the workpiece is the most serious. For workpieces that are repeatedly stretched and formed, the intermediate annealing process is often used to recrystallize the material to eliminate deformation and hardening. The quality also reduces the number of stretches.

The precautionary measures are well done, which can increase the puncture resistance, shrinkage and other aspects of the performance of the stretch film. Of course, during this period, you must always keep in mind relevant precautions to prevent operation errors or incorrect methods Problems such as film rupture occur. In addition, more attention needs to be paid to the storage and transportation of stretched films.