The distinction between solid aluminum profiles and hollow aluminum profiles
The processing technology and extrusion method of the hollow aluminum profile and the solid aluminum profile are basically the same, and the difference lies in the mold used.
For solid aluminum profiles, it is only necessary to form a hole in the mold, which can be extruded by an extruder. For the hollow aluminum profile, the mold is composed of the upper mold and the lower mold, the lower mold is processed into the shape of the aluminum profile, the upper mold is processed into the core of the hollow portion shape, and then the upper mold core is fixed under the mold. In the cavity of the mold, a welding chamber is also designed between the upper mold and the lower mold. In order to get aluminum into the mold cavity,
A diversion hole is also designed on the upper mold, and aluminum flows through the diversion hole to the welding chamber. The aluminum is re-welded under high temperature and high pressure, and the mold hole is extruded to become a hollow aluminum profile that we need. Since the mold used for the hollow aluminum profile is composed of two parts, we call the hollow aluminum profile die a combination die, and some because the upper die has a split hole, so it is called a split die.
