Fault repair and influencing factors of coating machine
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Troubleshooting the coating machine:
Traditional repair methods include overlay welding, thermal spraying, brush plating, etc., but they all have certain drawbacks: overlay welding can cause the surface of the parts to reach a high temperature, causing deformation or cracks, and in severe cases, it can also lead to shaft fracture; The electroplating coating should not be too thick, and the pollution is severe, which also limits its application. The material has good adhesion and compressive strength, which can avoid disassembly and repair of coating machine wear on site. At the same time, due to its metal deficiency yielding ability, it can effectively absorb the impact vibration of the equipment and avoid secondary wear.
Damage to the concrete foundation of the coating machine:
Due to factors such as corrosion, aging, and equipment vibration, the coating machine can also cause damage to concrete bases and other parts, resulting in loose bolts that fasten the equipment, seriously affecting production. Traditional concrete pouring methods for treatment can greatly prolong the repair time, which is difficult for enterprises to accept.
What are the factors that affect the effectiveness of the coating machine?
After using the coating machine for a long time, some faults may occur, and uneven weight distribution of the positive electrode plate is the most common situation, which can lead to the phenomenon of thick middle and thin sides, seriously affecting production progress. There are many factors that affect the uniformity of coating.
Roughly including: in terms of materials, the viscosity of the slurry, the uniformity of the slurry, and the uniformity of the substrate thickness; In terms of equipment, the smoothness of the radial circle of the scraper and coating roller, the flatness of the axial direction, and the parallelism of the scraper and coating roller installation, etc.
1. If there are problems with the process of using recycled materials in bulk at the beginning of the formal use of slurry, it is necessary to consider whether it is caused by uneven mixing of recycled materials. It is necessary to arrange for the re preparation of positive electrode slurry without recycled materials, conduct coating experiments, and check the results-- Coating machine
2. The substrate aluminum foil used for measurement has a uniform thickness.
3. The coating machine is the most expensive and complex equipment in battery production equipment, with high requirements for the processing and assembly accuracy of each component. General engineering personnel need years of exploration and experience to operate independently.








