What To Do If Flow Marks Appear After Drying

In the enamel production process, drying is a crucial link. If flow marks appear during the drying process, it will seriously affect the production quality of enamel products. As an enamel manufacturer, we provide one-stop services and professional solutions for enamel manufacturers. This article will discuss the causes and solutions to the flow mark problem during the drying of enamel slurry.

1. Causes of flow mark problems

The appearance of flow marks is mainly due to uneven evaporation of water during the drying process, local water vapor accumulation and failure to be discharged in time, causing the enamel slurry to flow during the drying process. This flow forms irregular traces on the surface of the enamel slurry, which are what we call flow marks.

The main reasons include:

1. Poor ventilation: Poor air circulation during the drying process prevents water vapor from being effectively discharged;

2. Fan failure: The fan in the drying box is not operating normally and cannot pump out the water vapor in time;

3. The door is not opened: There is no vent inside the oven or the door is not slightly opened, resulting in poor air circulation and failure to discharge water vapor smoothly.

2. Solution

In order to effectively solve the problem of flow marks during the drying of enamel slurry, the following measures can be taken:

1. Ensure ventilation: Ensure good ventilation during the drying process, drain the water vapor in the oven smoothly, and avoid condensation on the surface to form flow marks;

2. Make sure the fan is running normally: Make sure the fan is on normally. The function of the fan is to accelerate the air flow in the drying box, thereby extracting water vapor in time to prevent it from gathering on the surface of the enamel slurry. At the same time, turning on the fan also helps to maintain an even distribution of temperature in the drying box and improve drying efficiency;

3. Open the doors and windows slightly: If the drying box does not have a fan, we can also improve the ventilation by adjusting the opening of the drying box door. Properly opening the door of the drying box allows fresh air from the outside to enter the box and conduct convection exchange with the hot air in the box, thus promoting the discharge of water vapor. However, it should be noted that the size of the door should be moderate, not only to ensure the ventilation effect, but also to avoid excessive cold air entering and causing the drying temperature to drop;

4. Clean the inside of the drying box regularly to ensure there is no dust or debris. Accumulated dust and debris may affect air circulation and reduce drying efficiency.

Through the implementation of the above measures, the flow mark problem that occurs during the drying of enamel slurry can be effectively solved, and product quality and production efficiency can be improved. At the same time, during operation, attention should also be paid to regularly checking whether the equipment is operating normally, ensuring ventilation and humidity control of the drying environment, and fundamentally avoiding the recurrence of flow mark problems. If you have any questions related to enamel production, please contact us!