Aluminum die-casting sticking to the mold, some areas are also described by welding, which means that the aluminum die-casting aluminum alloy is stuck on the injection mold, resulting in a physical reflection. Once the aluminum die-casting aluminum alloy reacts with the injection mold, it will produce aluminum-iron chemical substances, which will continue to cause defects to the casting when it sticks to the abrasive tool. The hard interphase between metal materials will continue to deposit on the surface of the abrasive tool. Therefore, it is necessary to discontinue production and remove welding reactants by grinding and polishing, which will lead to increased production time, an extravagant waste of human capital, and will continue to reduce the service life of abrasive tools.

Analysis of die-casting mold sticking

Produced in the channel or sprue of the mold surface house facing the die.

This area is generally subjected to the strong impact of the molten metal material flow when filling the mold, the ambient temperature is high, the working pressure is high, the thickness of the protective layer is very easy to damage, and the abrasive tool is protected under the continuous erosion of aluminum die-casting aluminum alloy The layer thickness is ineffective and the metal material is exposed, and the aluminum alloy reacts with the conventional raw material and transforms into a complex intermetallic chemical phase.

The part is facing away from the glue inlet or the runner is avoided.

Such areas are generally areas where metal surface treatment or abrasive lubricants cannot. Therefore, their surface conditions, temperature distribution, and stress conditions are different from other regions.

Generally, the temperature of aluminum die-casting aluminum alloy is lower after arriving in this area, and its fluidity is also worse, it is very easy to initially condense, and the contact time between the hot semi-solid aluminum alloy and the surface of the abrasive tool is prolonged, and the abrasive tool here The surface layer itself is not ideal, so it is very easy to produce FeAl intermetallic chemical substances. In several aluminum die-casting circulation systems, intermetallic chemical substances will gradually accumulate in such areas with weak fluidity and eventually produce a comparison Serious welding will endanger the production of aluminum die-casting.

The amount of chemical substances between metal materials is very small, the welding surface is very thin, and the analysis method is limited. At this stage, academic research in various countries in the world can only carry out general qualitative research on it. Given the regularity of its transformation and development trend, the qualitative analysis of chemical substances between metal materials may be the top priority of future scientific research.

What are the characteristics of aluminum alloy die castings?

First, the characteristics of aluminum are that its reliability is very strong, and it also has very good reduction resistance. Therefore, the aluminum alloy castings produced by Shenzhen Die Casting Factory are not easy to rust and have strong corrosion resistance. . Indoor and outdoor decorative design products made of aluminum alloy castings can maintain a long-term and non-fading condition.

Second, the plasticity of aluminum is particularly good, which is conducive to the development of various product modeling designs. Therefore, the ductility of aluminum alloy castings is also very, very good, not only can it be used in continuous circulation systems, but its application range is more common. Those who have used aluminum alloy castings have mastered it, and its ductility is very strong.

Third, compared with other castings, the net weight of aluminum alloy castings is lighter.

Fourth, no matter what the aluminum alloy castings are used for, if there is a need, the design scheme pattern is very convenient, and it is possible to have a professional design scheme by a technical professional interior designer, not only based on fashion but also can create exclusive right.

It is because of the many characteristics of aluminum alloy castings that its main use is becoming more and more common. Because of its high compressive strength and surface strength, it has been favored and recognized by many manufacturing industries.

Conclusion

For more information about automotive parts aluminum die casting market,design of die casting dies,hicom die casting sdn bhd, we are glad to answer for you.