Porcelain Enamel Ball Milling and Management（3）
Release time:
2026-01-30 16:10
Source:
Fan Shaohua
(Continued from previous article)
5. Grinding Amount per Batch
A single grinding batch includes one or more enamel frits, clay, electrolytes, the required pigments, and water. Too much grinding material will decrease grinding efficiency and increase grinding time; it will also result in an abnormal distribution between fine and coarse particles, creating a polarization of coarse and fine particles, while the optimal particle size will be very small. It will also accelerate wear on the inner wall and grinding balls. Furthermore, excessively long grinding times will cause the enamel slurry to overheat, even making the entire ball mill hot. When the grinding time is up and the mill lid is opened, it may even smoke. At this point, the enamel slurry has overheated and aged, resulting in defects such as pinholes and pitting after 3-4 days of rest before enameling and firing.
6. Water:
The amount of water has a greater impact on grinding capacity than other factors. The water amount is generally 45-55% of the enamel frit input. Too little water will reduce grinding efficiency; too much water will result in a slurry with too low a specific gravity and a finer particle size. Accurate measurement is essential, and the same amount must be added each time.
7. Grinding Addition Sequence:
To avoid small amounts of grinding additives getting stuck in the gaps between the inner wall of the grinder and the inner wall of its lid, the grinding additives should be added in a specific order: The standard grinding addition sequence is as follows:
(1) The required amount of grinding balls.
(2) Approximately half the amount of enamel frit.
(3) The required grinding additives, including pigments.
(4) The remaining amount of enamel frit.
(5) Water.
Previous Page
Previous Page
RELATED INFORMATION
Tel: +86-731-53584517
Mobile: +8613421364360
WeChat: +8613421364360
Email:
messi@lifafrit.com
katharine@lifafrit.com
0