Hollow and Solid Aluminum Profiles, What’s the Difference?

From the production process point of view, both hollow aluminum profiles and solid aluminum profiles are extruded after being heated by aluminum rods. The difference between the two lies in the use of different extrusion dies. So what extrusion dies are used for the two profiles? Woolen cloth? Below is a brief introduction to their differences.

Hollow aluminum profile

When processing hollow aluminum profiles, a flat-split combined extrusion die is generally used, which is composed of an upper die and a lower die. The components of the upper die include shunt holes, die cores, working belts and empty knives, etc. The components of the lower die include welding chambers, die holes, working belts and empty knives, etc.

The main working principle is that the material enters the mold cavity from the shunt hole, and the aluminum alloy is distributed reasonably by the shunt hole. The size of the shunt hole is determined according to the cross-sectional size of the aluminum profile. When extruding, the shunt hole should be slightly inclined outwards. to reduce the pressure in the mold cavity.

The internal shape of the profile is mainly fixed by the mold core. The height of the welding chamber of the lower mold must be more than 10mm, so that the mold core can be kept stable. Die out.

Solid aluminum profile

When processing solid aluminum profiles, there is no need for upper and lower molds. It only needs to be processed on one mold, and then extruded. The extrusion mold is relatively simple.

Although solid profiles are heavier, more extrudable, and stronger than hollow profiles, in actual production, hollow aluminum profiles are more widely used than solid aluminum profiles.

Conclusion

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