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Shenzhen Green Power Energy Battery Co.,ltd specializes in a wide range of digital battery such as environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery, 3.7V lithium polymer battery, NiMH battery, NiCD battery, dry cell battery, alkaline battery, heavy duty battery, button cell battery etc. we devote to R&D, innovation, production & sales. With automatic production machines we have been exported goods to all over the world over 15years. We have complete exported certificate such as KC, CE, UL, BSCI, ROHS, BIS, SGS, PSE etc
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release time:2024-10-18 Hits: Popular:AG11 battery
What are the surface treatment processes for power CR2016 battery aluminum shells?
What types of surface treatment processes are there for power lithium battery aluminum shells? The power lithium battery aluminum shell needs to be surface treated during the processing process, so what types of surface treatment technologies are important? The surface treatment process for power lithium battery aluminum shells includes powder electrostatic spraying process, electrophoretic painting process, plasma enhanced electrochemical surface ceramicization process, frosting process and other surface treatment processes. The following is explained by the technical staff of the battery aluminum shell manufacturer. Let's take a look at what processes the battery surface treatment process consists of.
1. Powder electrostatic spraying process for battery surface treatment:
The working principle of the powder electrostatic spraying process is almost the same as the electrostatic spraying method of general liquid coatings. The difference is that the powder spraying is dispersed rather than atomized. It is a coating sprayed by an electrostatic powder spray gun. While dispersing, the powder particles are negatively charged. The charged powder particles are coated on the grounded power lithium battery aluminum shell by airflow (or other forces such as centrifugal force) and electrostatic attraction, and then heated, melted and solidified into a film. The aluminum shell of power lithium battery after powder electrostatic spraying is characterized by excellent corrosion resistance and acid, alkali and salt spray resistance, which is much better than oxidized colored profiles.
2. Electrophoretic painting process for battery surface treatment:
The electrophoretic painting process is a coating method that uses an external electric field to make the pigments and resin particles suspended in the electrophoretic liquid migrate in a directional manner and deposit on the surface of the substrate of one of the electrodes. It has the characteristics of water solubility, non-toxicity, and easy automation control. The surface of the aluminum shell of power lithium battery after electrophoretic painting has a soft gloss and can resist the invasion of cement and mortar acid rain.
Batteries treated by the surface treatment process of aluminum shell of power lithium battery
3. Plasma enhanced electrochemical surface ceramicization process for battery surface treatment:
The aluminum shell of power lithium battery adopts plasma enhanced electrochemical surface ceramicization process. Although it has excellent quality, it has a high cost. The profiles produced by this process have more than 20 colors. Its biggest feature is that it can be colored according to the same color as printed cloth. The surface of the profile is colorful and has the best decorative effect.
4. Frosted process for battery surface treatment:
Frosted aluminum profiles prevent the bright aluminum alloy profiles from being interfered with by light under certain conditions in architectural decoration. Its surface is as delicate and soft as brocade, which is very popular in the market. However, the existing frosted materials must overcome the uneven surface sand grains and the shortcomings of visible mold patterns.
5. Treatment methods for surface damage of power lithium battery aluminum shell
1. When the fork rod sends the profile from the discharge track to the swing bed, the profile is damaged due to excessive speed.
2. There are exposed metal or hard inclusions in the graphite strip on the discharge track or swing bed, which scratch the profile surface when it contacts the profile.
3. Strengthen the control of ingot quality.
4. Use soft felt to isolate the profile from the auxiliary tool to minimize the contact damage between the profile and the auxiliary tool.
5. Handle with care during production and try to prevent the profile from being dragged or flipped at will.
6. There are debris on the mold cavity or working belt, and the hardness of the mold working belt is low, so that the surface of the working belt is injured during extrusion and scratches the profile.
7. Improve the quality of mold repair, nitriding the mold regularly and strictly implement the nitriding process.
Some battery surface treatment processes are more complicated in the process, while others are very simple. Generally speaking, battery surface treatment processes are generally something that only individual companies can do. For example, many CR2016 battery PACK manufacturers will not do these battery surface treatment processes alone. In addition to being unprofessional, they are also not dedicated. Therefore, it is difficult for you to see the surface treatment process of power lithium battery aluminum shells in all battery manufacturers.
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