The process behind the die-casting of the aluminum housing of the LED light source

by:Zeyi     2021-05-17
The aluminum housing of the LED light source mainly protects the internal components. The main body of the shell adopts high-quality aluminum alloy profile, which has the characteristics of reasonable design, strong structure and beautiful appearance. LED light source aluminum housing is widely used in instruments, meters, electronics, communications, automation, sensors, smart cards, industrial control, precision machinery and other industries. It is an ideal housing for high-end instruments and meters. The surface treatment adopts electrostatic spraying, and the colors are off-white, dark gray, black, army green, etc. Next, I will take you to see how the aluminum housing of the LED light source is die-casted.     die-casting is one of the most important production processes in the manufacture of LED light source aluminum housings. The aluminum housing of LED light sources is no exception. Die-casting is a metal casting process that uses a mold cavity to apply high pressure to the molten metal. Molds are usually made of higher-strength alloys, and this process is somewhat similar to injection molding. So what are the issues that need to be paid attention to in the die-casting of the aluminum housing of the LED light source?     1. Consider the issue of mold release. Demolding refers to a series of operations to eject the steel ingot from the ingot mold. The time from the completion of the casting of the ingot to the demolding, the time from the completion of the pouring of the last ingot of a barrel of steel (the lower betting tray) to the beginning of the demolding (decap) of the first ingot is called the ingot transit time. If the demolding is not in place, it is easy to cause defects or even deformation of the aluminum shell of the power battery.    2. In terms of structure, try to avoid the appearance of the structure that leads to the complex structure of the mold, and have to use multiple core-pulling or spiral core-pulling.     3. Some LED light source aluminum housing parts may have special appearance requirements, such as oil injection. Oil injection is the name of the surface coating processing of industrial products. The steps of oil injection mainly include annealing, degreasing, removing electricity and dust, spraying, and drying. Each step is indispensable, and there should be no problems.     4. Consider the problem of the wall thickness of the die-casting aluminum housing of the LED light source. If the thickness gap is too large, it will cause the filling.     5. When designing the aluminum housing of the LED light source, considering the mold problem, if there are multiple core-pulling positions, try to put them on both sides, do not put the core-pulling in the lower position, so that the aluminum alloy die-casting will cause problems with the core-pulling after a long time. Information source: Industrial Electrical Network Image source: Internet
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