Aluminum flat plate are usually medium-thick aluminum plates, the alloys cover 1060, 1100, 3003, 5052, 5083, 5086, 5754, 6061 and 7075. Of course, thin aluminum plate and aluminum coils can also be provided, but the amount is still not comparable to medium thick aluminum plates. Usually medium thick flat aluminum plates are used as raw materials for machine manufacturing and mold manufacturing. All need to be controlled within 10 wires, so the flatness control of the aluminum plate is one of the difficult problems for manufacturers. How can the flatness of the aluminum plate be improved?
Generally, improving the flatness of aluminum plates is mainly related to aluminum plate aging treatment, rolling mill pressure, and leveling equipment. Some imported aluminum flat plates also use grinder grinding technology to improve the flatness of medium thick aluminum plates. Therefore, in the production of aluminum plate, aluminum plate manufacturers should pay attention to the time and temperature of the post-aging heat treatment, and the pressure of the rolling mill should be uniform, and the pressure of the leveling equipment should be uniform. In the production process and after production, flatness inspection should be carried out, especially for aluminum plates with high quality requirements.
The flatness of aluminum plate is the signal of high quality in aluminum processing factory. If the flatness of the aluminum plate is unqualified, it can be processed by the straightening machine at the same time. The internal stress release problem is mainly related to the temperature and technology of the aging heat treatment. It is necessary to find the most suitable temperature through repeated tests to solve the flatness problem of aluminum flat plate.