The appearance technology of the security camera die casting is rich, and the appearance effect of the security camera die casting is very beautiful. How to polish the security camera die-casting parts? Now let's have a look at the relevant content. I believe you can have a more detailed understanding.

1. Alkali electrolytic polishing process of security camera die casting.

Through the study of alkaline solution system, the influence of scale inhibitor and binder on polishing effect is compared, and the additives that can reduce the working temperature, prolong the service life of the solution and improve the polishing effect are successfully obtained. The experiment shows that the polishing effect is good when adding proper amount of additives into NAOH solution. Under certain conditions, the external reflectivity of aluminum film can reach more than 90% by using constant voltage electrolytic polishing technology. However, due to some unstable factors in the experiment, further research is needed. The feasibility of DC pulse electrolytic polishing process for aluminum polishing in alkaline condition was discussed. The results show that DC constant voltage electropolishing can be completed by pulse electropolishing, but the flatness is slow.

2. Environmentally friendly chemical polishing of security camera die casting.

The production of security camera die casting needs to develop new environmental protection chemical polishing technology based on phosphoric acid-sulfuric acid to achieve zero NOx emission and overcome the quality defects of previous similar technologies. The key of the new skill is to add some compounds with special characteristics to the base solution to replace nitric acid. Therefore, we should first analyze the three-acid chemical polishing process of aluminum, especially the role of nitric acid. The main function of aluminum nitrate chemical polishing is to control pitting and improve polishing brightness. Combined with the chemical polishing experiment in pure phosphoric acid sulfuric acid, it is considered that the special substances added in phosphoric acid sulfuric acid should have good leveling and brightening effects in order to control pitting corrosion and slow down corrosion.

There are many surface treatment methods for security camera die-casting, such as powder spraying, oil spraying, electroplating, oxidation, etc.

During the whole process of die casting, the die casting of security camera is in reciprocating fatigue state due to thermal expansion, and the core temperature basically changes repeatedly between 160-350 degrees, which is sensitive to change. Cooling and heating occur, and the security camera die casting expands and shrinks.

The materials commonly used in the production and processing of die castings will affect the quality of the aluminum die castings produced. Each product has different material rules, such as polishing, corrosion resistance, strength, compressive strength and heat treatment process. In the mature die casting structure, not only the material characteristics of the product (shrinkage, forming temperature, ductility drawing deformation index, etc.). It is also necessary to fully consider the control circuit of cooling circulating water and the opening/locking of mold. This can make the structure of the security camera die-casting mold more reasonable, increase the service time of the security camera die-casting mold, and ensure the smooth production and manufacturing.