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The Difference Between Solid Die and Hollow Die
Solid Die
The solid die is relatively simple, as long as the split hole is designed, the aluminum handle is squeezed out of the flat flag hole to form a cross section after mixing.
Like aluminum flat strips, aluminum rods, some special-shaped materials, etc.
Hollow Die
Hollow dies are generally combined by two combined molds, so that the cavity can be formed by splitting the flow through the working belt during extrusion, such as aluminum shells and round tubes.
For ordinary extrusion dies, to produce hollow profiles, a splitter die must be used, which consists of an upper die and a lower die. The upper die is generally used to guide flow and position the hollow part of the hollow profile. The lower mold is the outer surface working belt and empty knife.
Most of the non-hollow profiles use solid dies. Generally speaking, there is only one mold including diversion and working belts. Of course, there are special cases. Here we only explain the general production conditions.
The working principle of extruded aluminum profile mold mainly includes the following steps:
1. Preheating: First, preheat the aluminum profile and extrusion die to a certain temperature.
2. Extrusion: The preheated aluminum profile is put into the extruder and extruded through the cavity of the mold under high pressure to form the desired profile shape.
3. Cooling: The extruded aluminum profile needs to be cooled to fix its shape.
4. Cutting: The cooled aluminum profile is cut to the required length.
5. Heat treatment: In order to improve the hardness and strength of aluminum profiles, heat treatment is usually required.
6. Surface treatment: As needed, the surface of the aluminum profile may need to be frosted, anodized, electrophoretic painted, powder sprayed, etc.
In the whole process, the function of the extrusion die is to determine the shape of the extruded aluminum profile through the shape of its internal cavity during the extrusion process. The design and production of molds directly affect the quality and production efficiency of aluminum profiles.
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Aluminium Extrusion Working Principle:
During extrusion, under the strong extrusion force, the ingot is divided into several strands of metal by the knife (bridge part) of the mold and flows into the mold welding chamber. Under the conditions of high temperature, high pressure and high vacuum, the metal is re-welded and flows from the die hole to the needle. It flows out from the formed gap to form a hollow product of the required shape and size. The number of welds in the product is the same as the number of strands of metal flow.
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Main Product:
Industrial Aluminum Material,
Aluminum Profile Extrusion Mold,
Aluminium Extrusion Mould,
Aluminum Extrusion Die,
Aluminium Profile,
Aluminium Extrusion Profile
