Do you know what are the precautions for drying in Foundry Coating
Foundry Coating is a casting auxiliary material that covers the surface of the core during the casting process to improve its surface fire resistance, chemical stability, resistance to metal erosion, and anti-sticky sand; Foundry Coating can be made into paste, paste or Powdery, spray, brush, infiltrate, flow and other methods to coat the surface of the core. So how much do you know about its drying precautions? Let’s follow the editor to understand it briefly!
1. Control of drying temperature and time. During the drying process, try to prevent the foam plastic from deforming, and at the same time, ensure that there is enough drying time for the paint to dry and bake thoroughly. Under normal circumstances, the softening temperature of the EPS pattern is about 80 degrees Celsius, which requires normal temperature or low temperature drying in industrial production to prevent the pattern from deforming. Generally, the temperature is controlled at 40-60 degrees Celsius and the time is controlled within 2-8 hours. between.
2. Drying equipment. In the drying process, in order to improve work efficiency, it is required to equip the drying with good ventilation and drying equipment, such as drying room, drying oven, continuous drying kiln, etc. The heat sources include electricity, heating, hot air, etc.
3. Placement after drying. Because there is a certain amount of moisture in the air, the shape should be placed in a place with low humidity after drying to prevent moisture absorption and avoid delays in the production progress of castings caused by secondary drying.
The above is an introduction to the drying precautions of Foundry Coating.
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