Causes of embossed aluminum coils brittleness and buying advice

Embossed aluminum coils are a product we often use, but some users buy embossed aluminum coils that are brittle, what is the problem? In fact, embossed aluminum coils are brittle mainly because some manufacturers production technology causes, production technology is not off, the natural output of embossed aluminum coils are easy to have brittle phenomenon.

Embossed aluminum coils brittle specific reasons are mainly concentrated in the following three aspects.

I. Unreasonable design of the cross-section of the mouth mold: the distribution of internal tendons and intersection angle of improper handling will cause stress concentration phenomenon, which leads to embossed aluminum coils brittle, need to improve the design and eliminate the intersection at the right angle and sharp angle.

Two. Die head pressure is not enough: die head at the size of the pressure is directly affected by the compression ratio of the mold, especially the length of the flat section of the mold to determine. Die compression ratio is too small or straight section is too short will cause embossed aluminum coil is not dense, affecting the physical properties of patterned aluminum coil.

Three. Shunt tendons convergence bad: for this situation, should be appropriate to increase the tendons and the outer surface, tendons and tendons convergence at the length, or increase the compression ratio to solve, die head pressure can be changed by changing the length of the flat straight section of the die head to adjust the flow of material resistance, in the die design stage can choose a different compression ratio to change the extrusion pressure, but pay attention to the head compression ratio to adapt to the compression ratio of the extruder screw, but also by changing the The melt pressure can also be changed by changing the recipe, adjusting the extrusion process parameters and adding porous plates.

These are the common reasons for embossed aluminum coils to become brittle. When buying products, users must choose those with high reputation and strength to buy their own products to avoid buying products of substandard quality and delaying their normal production.