Aluminum profile surface defect elimination method
(1) Improve the cleanliness of the surface of industrial aluminum profiles.
(2) Reduce the surface roughness of the extrusion cylinder and the mold, and replace the extrusion cylinder and the extrusion pad with severe wear and tear in time.
(3) Improve the mold design, the position of the mold hole is as far as possible from the edge of the extrusion tube.
(4) The difference between the diameter of the pressing pad and the inner diameter of the extrusion tube is reduced, and the residual metal remaining in the inner liner of the extrusion tube is reduced.
(5) Keep the lining of the extrusion cylinder intact, or clean the lining with a gasket.
(6) After cutting the residual material, it should be cleaned and not exposed to lubricating oil.