China Aluminum Tube Supplier continues to share with you the typical defects and causes of the Aluminium Profile System.
6. Unqualified size
Due to mold design errors or manufacturing defects; improper mold repair; excessive temperature rise of the ingot during extrusion, the extrusion speed changes too much; the length calculation of the ingot is not accurate and not enough length.
7. Layering
Due to oil stains and dust on the surface of the ingot, the surface quality of the ingot is not good, and there is a large segregation tumor; the residual material remains on the surface of the mold; the ingot itself has delamination, bubbles and the like, causing defects in the Aluminium Profile System.
8. Tail
Since the squeeze residue is left too short, the squeeze gasket is oiled or not clean, the surface of the billet is not clean, the length of the product cut layer is not enough, and the extrusion speed is suddenly increased when the extrusion is finished.
9. Unqualified performance
Because the extrusion temperature is too low, the profile does not reach the quenching temperature; the artificial aging system is not suitable; the instrument is out of control, the furnace temperature is too high or too low; the ingot blank is not uniform, and the cooling air volume is insufficient.
10. Squeeze the horizontal stripes
Due to the unreasonable design of the mold, the working belts of the same part are not equal in length; the extrusion speed is improperly controlled; the extruder is not running smoothly.
If you choose which one to know more about Double Aluminum Profiles, keep an eye on our website.
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