Aluminum profile equipment manufacturers analyze the causes of cracks on the surface of aluminum profile
1. The surface of the metal is subjected to the action of the superimposed stress due to the conflict force, and cracks will occur when the superimposed stress is greater than the tensile strength of the surface metal;
2. When the extrusion temperature is high, the tensile strength of the metal surface falls and cracks occur under the action of the collision force;
Three, extrusion speed through fast, the metal surface by the additional stress caused by the crack profile.