Detailed explanation of the grouting method of alumina ceramics
Detailed explanation of the grouting method of alumina ceramics
Grouting is actually an early molding method used for alumina ceramics. Because plaster molds are mainly used, the cost is relatively low, and it is also relatively easy to shape, even if the size and shape are more complex, it is easier to shape, but The key to grouting is the alumina slurry manufacturing equipment. Under normal circumstances, water is used as the main medium of the solvent. After that, the binder and debonding agent are added, and the exhaust is exhausted after sufficient grinding. It is poured into the plaster mold, because the capillary of the plaster mold will absorb the moisture, and the slurry will solidify in the plaster mold relatively quickly. If required, the excess material needs to be poured out, but in order to reduce the amount of shrinkage of the green body, we should try to use a relatively high-concentration slurry.
Of course, in the alumina ceramic paddle, it is necessary to add appropriate additives, mainly to make the particles of the paddle form a relatively stable suspension on the surface without sinking, in addition to adding an appropriate amount of seaweed Other binders such as acid amine, methyl cellulose and vinyl alcohol, or dispersants such as gum arabic and polyacrylamide are mainly used to make the slurry more suitable for the related requirements of grouting.
