When manufacturing aluminum composite panels, manufacturers often encounter various issues, one of which is the uneven surface of the panels. What are the reasons behind the wavy surface of aluminum composite panels? There are many factors that can lead to non-compliant aluminum composite panels, such as problems with the extrusion mold settings and support pads, etc. Below, we list the specific causes of the uneven surface of aluminum composite panels:

The extrusion mold for aluminum single sheets has an incorrect length ratio of the working belt or a design error in the cavity size, resulting in a severely mismatched flow rate.

(II) The aluminum extrusion mold working zone features both a hindrance angle and a flow-promoting angle.

(3) The upper and lower mold working zones of the aluminum extrusion die have an excessive difference in drop.

(4) The upper and lower molds of the aluminum single plate extrusion die are not parallel, exhibiting a trumpet-shaped gap.

(5) The upper mold resistance (分流台) in the aluminum single sheet extrusion die cavity is too high, blocking the work strip discharge or the incorrect size, depth, and position of the drain channel.

(6) Aluminum single-sheet extrusion die workbench外侧empty knives are too few or even non-existent (electrical spark not properly struck) or too large (workbench lacks support and cracks, causing deformation).

(7) Aluminum extrusion molds, either new or repaired, exhibit inconsistent smoothness in the working strips due to uneven coarse sand polishing at the mold factory.

Section 8: There are oil stains on some aluminum single sheet extrusion lines.

(9) Support pad too small, causing obstruction.

(10) Aluminum single sheet end shows waves approximately 1 meter in length (V3 volume aluminum pressed in).

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