Orange peel aluminum surface defect characteristics reflect:
Sometimes orange peel surface shape after stretching aluminum wrinkles, this is actually generated by the aluminum metal surface when the stress is greater than the base metal surface metal fragments (grain crushing), if it continues afterburner, stress will be from the table and Lane until the matrix fracture.
Causes orange peel aluminum surface defects:
Generally orange peel aluminum surface defects because of excessive tensile aluminum when stretched. Generally speaking the thicker the wall thickness, the shorter the length of the bar, in order to ensure the straightness of the profile to prevent twisting, more prone to artificially increase the amount of stretch when.
Orange peel aluminum surface defect elimination approach:
(A): for easy bending twisting aluminum to strengthen the repair mode, the control aluminum straightness.
(B): to increase traction in the aluminum extrusion is still hot, hot in the material stage to preclude the use of roof profiles, pressure and other corrective measures (taken to prevent deformation profiles)
(C): elongation of aluminum controls, both to ensure the straightness of the surface quality, strict control of the stretching of the inner upper-limit bend of the customer requirements.
(D): Aluminum elongation control, to ensure the straightness of both surface quality, profiles tensile deformation at two and shut down parts of India cut off more and more.