How to avoid scratches and dents in aluminum profiles
The surface of the extruded aluminum product has rough longitudinal or lateral grooves and scratches. The scratches that are recessed from the surface are mostly caused by foreign matter stuck in the mold or rough processing at the empty knife. There is also a raised scratch on the corner of the product, which is caused by cracks in the extrusion die. The lateral scratch or scratch is mainly due to the hardening of the cold bed when the product is transported from the sliding table to the finished sawing table. The object protrudes from scratching the product, and some are produced during loading and handling. Scratches and scratches are common surface defects in the extrusion process of aluminum profiles.
The main elimination methods are:
1) The working belt of the extrusion die should be smooth and smooth, and the empty die of the extrusion die should be smoothed.
2) Care should be taken when installing the mold to prevent molds with small cracks from being used. Pay attention to the fillet radius when designing the mold.
3) Always check the cold bed, finished product storage platform, to prevent scratches from scratching the product.
4) When loading, place a softer strip than the product. Transportation and lifting should be smooth and careful.