If the wall thickness of die castings of lighting fixtures is too thin, on one hand, it will cause issues such as increased flow distance and greater resistance of the molten metal in the mold cavity during casting production. This easily leads to insufficient filling, resulting in surface defects like material shortage and cold shuts, and may even render the castings scrapped.
Additionally, it will accelerate the solidification speed of the molten metal, which tends to form internal defects such as porosity and shrinkage cavities in the castings. On the other hand, due to the thin wall of the die castings, their structural strength and stability will be significantly reduced. During the installation and long-term use of the lighting fixtures, the die castings may deform, bend, or even crack due to insufficient thickness, failing to effectively protect the internal lighting components.
Most lighting fixtures generate heat during operation, and the overly thin die castings cannot provide a good heat dissipation path, causing heat to accumulate locally. This leads to material aging, prevents the internal circuits and light sources of the fixtures from working stably, shortens the service life of the lighting fixtures, and may even pose safety hazards due to high temperatures.
