1. During the trial of aluminum alloy profile extrusion dies and the aluminum extrusion process, the following aspects should be given special attention:
A. Determining the die and rod temperatures before aluminum alloy profile extrusion, whether the extrusion temperature requirements are met, and whether heating penetrates the core (the placement of dies in the heating furnace is very important; there should be a certain heating gap between dies).
B. The aluminum extrusion die must be aligned to the center position to avoid die collapse or jamming.
C. For different aluminum alloy profile dies, an appropriate extrusion speed should be selected to prevent poor material flow 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 rod impurities, and so on.
2. The repair of aluminum extrusion dies is a very important process, but the first consideration in die repair is its strength. Repair should be carried out on the basis of ensuring the strength of the aluminum extrusion die. Welding is generally not used unless absolutely necessary, because welding has a significant impact on die life. Especially welding on the working strip can easily shorten its lifespan. For the repair of profile speed differences, it is generally carried out by speeding up the slow areas rather than slowing down the fast areas. In this way, reducing the load in die construction can to some extent ensure its lifespan. Of course, improving the level of die repair and reducing the number of trial extrusions is also one of the methods to extend die life.
3. In the die seasoning process, special attention should be paid to the punching stage, especially in some screw holes or more fragile areas, otherwise, the die can easily be damaged.
4. The handling process of aluminum extrusion molds must be carried out carefully to avoid bumping against work belts or other areas. Before the molds are stored in the warehouse, they must be thoroughly cleaned, and a careful, detailed, and in-depth inspection should be conducted to check for any small cracks or damage.
5. For molds that have completed production, it is essential to effectively manage their process data, such as mold repair plans, machining details, and extrusion processes. This is because all of these can serve as references for supplementing molds or replicating similar molds in the future, thereby effectively improving the pass rate of molds when installed on machines.
The improvement of the service life of extrusion molds relies on the perfect connection of processes such as design, manufacturing, usage, and subsequent maintenance. Relying on a single link cannot effectively achieve the goal; through the effective integration of various links, it is believed that corresponding improvements in mold life can be achieved.
