Zirconia ceramic cold isostatic pressing referred to as isostatic pressing (CIP), it’s a common process when zirconia and alumina ceramic forming.
Isostatic pressing technology can be used to make new alloy products that are difficult to be produced by casting technology, and it is also a very good forming process for zirconia ceramic products and alumina ceramic products with high performance and strength requirements.
The products have the advantages of uniform density, no residual stress, no mold wall friction, no additives, and binders, etc., and are usually used to manufacture high-density large and special-shaped zirconia ceramic products and alumina ceramic products.
When we do the forming of zirconia and alumina ceramic parts, compared with steel mold pressing forming, isostatic pressing has the following advantages:
1. Can press parts with concave, hollow, slender parts, and other complex shapes.
2. Low friction loss and low forming pressure.
3. The pressure is transferred from all aspects, and the density distribution is uniform and the billet strength is high.
4. The lower cost of the mold.
The disadvantages of isostatic pressing are: the blank size and shape are not easy to be accurately controlled, the productivity is low, and it is not easy to implement automation.
The latter disadvantage can be overcome to some extent by the Dry Bag Isostatic Pressing.
This method is called “dry bag” because the operator does not contact the liquid medium, and the productivity per unit has reached 500~3800 pieces/hour.
Dry bag Isostatic pressing is generally suitable for the production of ceramic balls, ceramic tubes, ceramic filters, grinding wheels, nozzles, etc. The pressing pressure of ceramics is generally 70-200MPa. Rigid natural rubber, chlorine, rubber, polycarbonate, polyvinyl chloride, and so on are usually used as molds.
Mingrui Ceramic has a mature isostatic pressing process, where you can customize the production of high-strength, high-performance zirconia ceramic parts and alumina ceramic parts, welcome to inquire!