Patterned aluminum plate is a product that we often use, but what's the reason why some users buy patterned aluminum plates that are brittle? In fact, the embrittlement of aluminum plates is mainly caused by the production technology of some patterned aluminum plate suppliers. Due to poor production technology, naturally produced patterned aluminum plates are prone to embrittlement.
The specific reasons are mainly concentrated in the following three aspects:
1. Unreasonable design of the die section: Improper treatment of the distribution of internal ribs and the angle of the interface can lead to stress concentration, which can lead to curly and brittle patterned aluminum. It is necessary to improve the design and eliminate right angles and acute angles at the interface.
Insufficient die head pressure: The pressure at the die head is directly determined by the compression ratio of the mold, especially the length of the straight section of the mold. If the compression ratio of the die head is too small or the flat and straight sections are too short, the product will not be dense, affecting the physical properties of the patterned aluminum roll.
3. Poor convergence of splitter bars: In this case, it is necessary to appropriately increase the length of the ribs and the outer surface, or the confluence between ribs and ribs, or increase the compression ratio to solve the problem. Changes in die pressure can be adjusted by changing the length of the flat and straight section of the die to adjust the flow resistance. During the mold design stage, different compression ratios can be selected to change the extrusion pressure, but it is important to note that the head compression ratio should match the compression ratio of the extruder screw, and the formula can also be changed, Adjust the extrusion process parameters and add porous plates to change the melt pressure.
The above are common reasons for embrittlement of finished products from patterned aluminum plate manufacturers. When purchasing products, users must choose enterprises with high credibility and strong capabilities to choose their own products, to avoid delaying their normal production due to purchasing products with substandard quality.