Die-casting aluminum after cutting processing moldy may be due to the following reasons:
1. Moisture in the cutting fluid: The cutting fluid is usually a mixture of water and cutting fluid additives. If the water in the cutting fluid is not effectively controlled, or if it enters the tiny pores on the surface of the aluminum alloy during the cutting process, it will provide the conditions for mold to develop.
2. Grease or dirt on the surface of the aluminum alloy: During the cutting process, grease, dirt, or other organic matter on the surface of the aluminum alloy may become a source of nutrients for the growth of mold.
3. High environmental humidity: A high-humidity environment is one of the ideal conditions for mold growth. If the cut and processed aluminum alloy are exposed to a high-humidity environment, mold will quickly develop.
For the above possible reasons, the following measures can be taken to prevent die-casting aluminum mold:
1. control the moisture content in the cutting fluid: ensure that the moisture in the cutting fluid is effectively controlled to avoid moisture entering the tiny pores on the surface of the aluminum alloy.
2. Clean the surface of aluminum alloy: Before the cutting process, ensure the surface of aluminum alloy is clean and free of grease, dirt, or other organic residues.
3. Keep the environment dry: control the humidity of the climate after cutting and machining to avoid the influence of the high-humidity environment on the aluminum alloy.
4. Use anti-mold agent: After cutting processing, you can use the appropriate anti-mold agent to treat the surface of aluminum alloy to prevent mold growth.
To sum up, controlling the moisture content in the cutting fluid, keeping the surface of aluminum alloy clean, maintaining the environmental humidity, and using an anti-mold agent and other measures can effectively prevent mold after die-casting aluminum after cutting and processing.
In addition to the reasons mentioned above and preventive measures, die-casting aluminum after cutting the processing mold may also be related to the following factors:
4. The pH value of the cutting fluid is too high or too low: the pH value of the cutting fluid is too high or too low, which may lead to mold growth. Therefore, it is essential to ensure that the pH of the cutting fluid is within the proper range.
5. Preservation and Replacement of Cutting Fluids: Cutting fluids need to be replaced and kept clean regularly to prevent contaminants and bacteria from growing in them. At the same time, they should be stored in conditions that avoid exposure to direct sunlight or high temperatures.
6. Aluminum alloy surface treatment after the cutting process: After the cutting process, clean the cutting fluid residue on the surface of aluminum alloy in time and carry out appropriate drying treatment to prevent the growth of mold.
7. Poor air circulation: After die-casting aluminum has been cut and processed, if the surrounding air circulation is poor and the humidity is high, mold will easily grow. Maintaining good ventilation and airflow can reduce humidity and mold growth.
In summary, in addition to controlling the moisture content in the cutting fluid, cleaning the surface of aluminum alloy, controlling the environmental humidity, and using an anti-mold agent and other measures, also paying attention to the pH value of the cutting fluid, preservation, and replacement, as well as the aluminum alloy surface treatment and air circulation and other factors, to comprehensively prevent die-casting aluminum after cutting and processing of the problem of mold.
