Advantages of Cold Isostatic Pressing of Zirconia Ceramics
Cold isostatic pressing of zirconia ceramics is referred to as isostatic pressing. The static pressure generated by the fluid or gas is directly applied to the powder or compact in the elastic mold sleeve through a high-pressure pump, so that it is pressed by uniform pressure in all directions.
The isostatic pressing of zirconia ceramics is divided into cold isostatic pressing and hot isostatic pressing according to its characteristics. The isostatic pressing technology can be used to manufacture new alloy products that are difficult to produce by casting technology. The products have uniform density and no residual stress.
It has the advantages of no mold wall friction, no additives and binders, etc., and is usually used to manufacture high-density large and special-shaped parts.
It can press parts with concave, hollow, slender parts and other complex shapes. The friction loss is small, the forming pressure is low, the pressure is transmitted from all sides, the density of the compact is evenly distributed, and the strength of the compact is high. The cost of the mold is low, and the disadvantages of isostatic pressing are: the size and shape of the compact are not easy to accurately control, 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 method.
Cold isostatic pressing mold/bag
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