Anyone who works with extruded aluminum profiles knows that scrapping a profile due to bending is very wasteful, should not happen, and can definitely be avoided! So, how can we reduce or prevent scrap caused by bending!
Straightening by pressing: Straightening is a critical step where the profile can become severely bent. The straightening worker must pay attention to the force used during straightening. Excessive force may cause deformation, shrinkage, or an orange peel effect on the profile, while insufficient force will result in the profile not being straightened properly, causing it to remain bent.
Extrusion Framing: This step is also very important. After sawing to the specified length, the material needs to be framed. At this point, the framing worker must pay attention: Is the material large or small? Is it tube-type or flat-molded material? Generally speaking, lifting large and tube-type materials by both ends when framing is unlikely to cause bending, but for small materials or materials pulled from flat molds, lifting by both ends can easily cause bending. In such cases, the material should be lifted from both ends toward the middle when framing. However, for some profiles, even this method does not work; for example, louvered, window panes, or cover cap materials must be placed on profiles that have already undergone aging before being lifted into the frame.
Surface treatment shelving: After the billets undergo aging, their hardness reaches the standard, making the profiles less prone to bending. However, caution is still needed when placing them on the shelves. When lifting from both ends, try to avoid large vertical fluctuations, as these can still cause some bending even to aged profiles.
