Ways to strengthen the quality of 3003 aluminum coil processing

Aluminum coil plate has won the favor of the majority of users with its unique characteristics. Today, Haomei Aluminum will give you a brief introduction on how to strengthen the quality of 3003 aluminum coil processing.

1. The 3003 aluminum coil plate is not homogenized, so that the Mg2Si precipitated in the aluminum coil structure cannot be re-dissolved in a short time of extrusion, resulting in insufficient solid solution and affecting product performance; it needs perform homogenization.

2. When the 3000 series aluminum coil is extruded, the temperature is too low, the extrusion speed is too slow, and the outlet temperature of the profile does not reach the solid solution temperature, which does not achieve solid solution strengthening; it is necessary to properly control the extrusion temperature of the aluminum coil. And the extrusion speed maintains the profile at the outlet temperature of the extruder above the low solid solution temperature.

3. The composition of the aluminum coil plate is unqualified, and the content does not meet the standard requirements; it is necessary to strengthen the quality management of the aluminum coil plate.

4. There are few fans at the exit of the aluminum coil, and the air volume is not enough, resulting in a slow cooling rate. The profile cannot be lowered to below 200 °C in a short period of time, so that the coarse Mg2Si precipitates prematurely, thereby reducing the solid solution phase and affecting the profile. Mechanical properties after heat treatment.

5. Improper aging process, poor hot air circulation or incorrect installation position of thermocouple result in insufficient aging or overaging; strong and reasonable determination of aging process and correct placement of profiles should be done to ensure smooth circulation of hot air.