Polyurethane Molds/Bags for ceramics

Polyurethane CIP Molds/Bags for ceramics

There are many molding methods for preparing alumina ceramics from powder to green body. Generally divided into isostatic pressing molding, slip molding, thermoforming and dry pressing molding.

Dry press molding uses pressure to press powder into a green body of a certain shape. In fact, under the action of external force, the powder particles are brought close to each other in the mold and are firmly combined by internal friction to maintain a certain shape and maintain a certain shape. It's called compression molding. This molding method is mainly used to make simple-shaped ceramic products.

Isostatic pressing is a special molding method developed on the basis of traditional dry pressing! It uses fluid to transmit pressure and evenly apply pressure to the powder in the elastic mold from all directions. Due to the consistency of the internal pressure of the fluid, the powder bears the same pressure in all directions, which can avoid density differences in the body. Isostatic pressing can obtain a uniform and dense body. Ceramic sintering shrinkage is small and shrinks uniformly in all directions, which is suitable for ceramic products with special requirements.

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