The good price and quality 6063A aluminum plate cracks are caused by tensile stress when the profile is squeezed to form a horizontal metal tear phenomenon with different degrees on the surface. The main reasons for this kind of phenomenon, after analysis, mainly include the following three:

First, the metal surface is subjected to additional tensile stress due to friction. When the additional tensile stress is greater than the tensile strength of the good price and quality 6063A aluminum plate surface metal, cracks will occur;

Second, the extrusion temperature of good price and quality 6063A aluminum plate is too high, the tensile strength of the metal surface decreases, and cracks occur under the action of friction;

Third, when the extrusion speed of good price and quality 6063A aluminum plate is too fast, the additional tensile stress on the surface of the metal increases and the profile cracks.

The only way to solve this reason is to strictly control the extrusion process parameters to ensure a reasonable exit speed and exit temperature, in order to reduce the phenomenon of cracks in the good price and quality 6063A aluminum plate. This requires the company to strictly check and supervise the production process.