1. Support pad too small to block.
2. There are oil stains on the extrusion work belt of some industrial aluminum profiles.
3. The working zone drop ratio of the upper and lower die of the industrial aluminum extrusion die is out of line.
4. The extrusion die of industrial aluminum profile has an obstruction Angle and a flow promoting Angle.
5. The working belt of the upper and lower die of the industrial aluminum extrusion die is not parallel, so there are some coughs.
6. Industrial aluminum profile tail 1m or so appear waves (V3 volume aluminum pressure).
7. The design error of length ratio or cavity size of industrial aluminum extrusion die is serious imbalance of velocity ratio.
8. Industrial aluminum extrusion die cavity on the mold resistance (points) flow table is high to block the work of the discharge or drainage groove (size, depth, location) is wrong.
9. The smoothness of the new mold or the repaired industrial aluminum profile extrusion mold is different due to the uneven coarse sand polishing work belt of the mold factory.
10. Industrial aluminum extrusion die work belt outside the empty knife is too little or even no (electric spark is not played well) or too large (work belt without support and cracking deformation).
