Aluminum plates refer to the rectangular plate processed by aluminum rollinq, which is divided into pure aluminum plates. alloy aluminum plate. brushed aluminum plate, aluminum oxide plate, pattern aluminum plate and so on. At present. aluminum plate is widely used in household appliances. building decoration, automobile decoration and other places, Aluminum plate in the production process will inevitably appear some white spots, white and other problems, about aluminum plate white spots, what is the cause and treatment method?
1. Water is not clean, should strengthen the water.
2. The water used for washing is too dirty and easy to pollute the skin film. At this time, the water should be replaced to ensure the quality of washing.
3. The oxide film is polluted by soot, acid and alkali fog in the air. Strengthening water washing, timely dyeing and timely transfer can greatly reduce this symptom.
4. The oxide film is polluted by oil and sweat stains. Must strengthen protection, do not touch the appearance of the workpiece with hands.
5. There are insoluble impurities in the dye solution, which are contaminated by oil and destroy the normal dyeing. At this time, the dye solution should be filtered or replaced. and the tank liquid should be cleaned regularly.
6. Workpiece gap, deep hole in the residual acid outflow, to strengthen the washing of this kind of work piece
7. The dye contaminated. resulting in spot corrosion of the dyeing workpiece. the dye must be replaced at this time usually should pay attention to avoid the introduction of impurities in the process of operation.
