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The market of aluminum alloy die castings is getting bigger and bigger, so various problems are also encountered in the process of die casting production. So what are the reasons for the peeling of aluminum alloy die castings during shot blasting?
Because the shot blasting of aluminum alloy die castings is to make the die castings further compacted, the force per square meter is generally about 3 kg. If the aluminum alloy die castings have quality problems during the processing, the peeling phenomenon will occur during shot blasting compaction. There are several reasons:
1. The mold or injection chamber is not cleaned;
2. The injection pressure is not enough (it is also necessary to pay attention to whether the movable mold retreats during injection);
3. There are some problems with the opening of the pouring system, and the alloy liquid enters the cavity with turbulence;
4. Mold temperature problem;
5. The metal liquid splashes severely during injection.
Through analysis, we can find ways to deal with the problem, control the occurrence of the problem, and die-cast high-quality aluminum alloy die castings.
