The role of potassium carbonate in glazes mainly includes the following aspects:

1. Promote the melting of glaze: Potassium carbonate can lower the melting point of glaze, promote its melting and flow, make the glaze smoother and more delicate, thereby improving the quality of the glaze. In addition, potassium carbonate can reduce the shrinkage rate and cracking of glaze, and increase the strength and toughness of the glaze layer.

2. Increasing the hardness and durability of the glaze: Adding an appropriate amount of potassium carbonate to ceramic glaze can improve its hardness and durability, making it less prone to wear or peeling. At the same time, potassium carbonate can also promote the toughness and stain resistance of glaze, making the glaze easier to clean and maintain.

3. Adjusting the color of glaze: The addition of potassium carbonate can affect the color of glaze, making it more transparent and bright or producing different tones. In addition, potassium carbonate can improve the stability of glaze color and prevent discoloration or fading.

The role of potassium carbonate in enamel mainly includes the following aspects:

1. Protecting metal surfaces: During the production process of enamel products, potassium carbonate can react with the metal surface to form a protective carbonate film, effectively preventing oxidation and corrosion of the metal surface.

2. Improving hardness and wear resistance: Potassium carbonate can enhance the hardness and wear resistance of enamel products, making them harder and more durable.

3. Preventing corrosion: Potassium carbonate also has the function of preventing corrosion, which can extend the service life of enamel products.

4. Improving color and luster: In addition, potassium carbonate can also improve the color and luster of enamel products, making them more beautiful and attractive.