How we produce LED light housing?
Please take a look at this video, it tells you how MF produce LED light housing for you at reliable quatlity in a cost effective manner.
All regulations are under ISO9001 strictly.
Any single component has to be quality checked by QA system before goes into production line.
All workers has be trained for a new lamp, and all workers has to trained before working in workshop.
All testing and production procedure are under humen-friend oriented management.
you get all best from MF manufacturing. the vide tells you all details.
Audited supplierDie casting process is the process of unifying pressure, speed and time by using three elements: machine, die and alloy. For metal hot working, the existence of pressure is the main feature of die casting process, which is different from other casting methods. Die casting is a special casting method with less cutting and no cutting in modern metal processing technology. It is a process in which molten metal is filled into the mold under high pressure and high speed, and crystallized and solidified under high pressure to form a casting. High pressure and high speed are the main characteristics of die casting. The commonly used pressure is tens of MPA, the filling speed (inner gate speed) is about 16 ~ 80m / s, and the time for liquid metal to fill the mold cavity is very short, about 0.01 ~ 0.2S.
Die casting process is a process of organic combination of die casting machine, die casting die and alloy. The process of filling the cavity with metal during die casting is the process of unifying the process factors such as pressure, speed, temperature and time. At the same time, these process factors affect and restrict each other, and complement each other. Only by correctly selecting and adjusting these factors and making them coordinated can we obtain the expected results. Therefore, in the die casting process, we should not only pay attention to the technological properties of the casting structure, the advanced nature of the die casting die, the excellent performance and structure of the die casting machine, the adaptability of the die casting alloy and the standardization of the melting process. More attention should be paid to the important role of process parameters such as pressure, temperature and time on casting quality. In the process of die casting, we should pay attention to the effective control of these parameters.
In general, when casting thin-walled castings, the flow resistance in the cavity is large, and the inner gate also adopts a thinner thickness, so it has a large resistance. Therefore, it is necessary to have a larger filling specific pressure to ensure the required inner gate speed. For thick-walled castings, on the one hand, the selected inner gate speed is low and the metal solidification time is long, so a smaller filling specific pressure can be used; On the other hand, in order to make the casting have a certain density.
It is also necessary to have sufficient pressurization specific pressure can meet the requirements. For castings with complex shape, the filling specific pressure should be higher. In addition, due consideration should be given to the type of alloy, the size of inner gate speed, the power of die casting machine clamping capacity and the strength of die. The size of filling specific pressure is mainly calculated according to the selected inner gate speed. As for the size of pressurization specific pressure, according to the alloy type, It can be selected by referring to the values in the table below. When the exhaust conditions in the mold cavity are good and the ratio of inner gate thickness to casting wall thickness is appropriate, a low boost specific pressure can be selected. The worse the exhaust conditions are and the smaller the ratio of inner gate thickness to casting wall thickness is, the higher the boost specific pressure should be.
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