Trial of Aluminum Alloy Extrusion Dies and Precautions During Aluminum Extrusion Process

1. During the trial of aluminum alloy profile extrusion dies and the aluminum extrusion process, attention should be focused on the following aspects:

A. Determining the temperature of the die and rod before extruding aluminum alloy profiles, ensuring it meets the extrusion temperature requirements, and checking if the heating penetrates through (the placement of molds in the heating furnace is very important, leaving a certain gap between molds for uniform heating).

B. The aluminum extrusion die must be properly aligned to the center to avoid die collapse or jamming.

C. For different aluminum alloy profile dies, the appropriate extrusion speed should be selected to prevent extrusion issues caused by excessive speed.D. During the aluminum alloy profile extrusion process, attention should also be paid to the quality of the aluminum rods to avoid die damage caused by impurities in the rods, among other concerns.

2. Repairing aluminum extrusion dies is a very important step, but the primary consideration in die repair is its strength. Repairs should be carried out while ensuring the aluminum extrusion die maintains sufficient strength. Welding is generally avoided unless absolutely necessary, as it significantly affects the die's lifespan. This is particularly true for welding the working surface, which can easily shorten its service life. For profiling slow or fast areas, it is generally preferable to speed up the slow areas rather than slow down the fast ones. In this way, reducing the load in the die construction can help ensure its lifespan to some extent. Of course, improving die repair skills and reducing trial runs is also one way to extend the die's service life.

3. During the die seasoning process, special attention must be paid to the punching of materials, especially in areas such as screw holes or other fragile spots; otherwise, the die can be easily damaged.

4. The handling of aluminum extrusion dies should be done carefully to avoid bumping areas such as the working surface. Before placing the die into storage, it must be thoroughly cleaned, and a careful and detailed inspection should be conducted to check for tiny cracks or damage.

5. It is essential to effectively manage the process data of completed molds, such as mold repair plans, machining details, and extrusion processes. This information can serve as a reference for reproducing molds or similar molds in the future, thereby effectively improving the mold’s qualification rate during production.

The improvement of the service life of extrusion molds depends on the perfect connection of design, manufacturing, usage, and subsequent maintenance processes. Relying on a single link alone cannot effectively achieve the goal; through the effective integration of all links, it is believed that the mold's service life can be correspondingly improved.