Design and Manufacture of Alumina Isostatic Pressing Molds
Design and Manufacture of Alumina Isostatic Pressing Molds
Design and manufacture of alumina isostatic pressing molds, alumina powder isostatic pressing molds, alumina powder isostatic pressing leather sheaths, wet bag isostatic pressing is to wrap the blank (or pre-pressed in advance) It is sealed in an elastic plastic or rubber mold, and then placed in a high-pressure cylinder to form the green body under pressure through liquid transfer. This method can change the shape and size of the plastic envelope, making the product highly flexible and suitable for small-scale production. However, manual bagging and unloading operations are required every time, and the production efficiency is not high. This method is mainly used for the production of large, special-shaped parts.
Dry bag method isostatic pressing is to semi-fix the elastic mold and not soak it in the liquid medium, but it is sealed by the upper and lower pistons. The pressure pump injects the liquid medium between the high-pressure cylinder and the pressurized rubber, and the pressure is transmitted through the liquid and the pressurized rubber to cause the green body to be pressed and formed. This method can be operated continuously, that is, the upper cover of the mold is opened, materials are loaded, and then the upper cover is closed and pressurized to form. When discharging, the upper cover is opened and the compact is ejected from the top through the ejector rod at the bottom. The operation cycle is short and suitable for batch production.
(1) Principle of isostatic pressing Isostatic pressing (isostatic pressing) is also called hydrostatic pressing. It is a molding method that utilizes the incompressibility of liquid media and the ability to transmit pressure uniformly. That is, the pressure experienced by a sample in a high-pressure container is the same as the pressure experienced by still water at the same depth, so it is called hydrostatic pressure or Isostatic pressure. The molding process based on this principle is called hydrostatic molding, or isostatic molding.
(2) Types of isostatic pressing Isostatic pressing technology can generally be divided into three types according to the temperature during molding and consolidation: cold isostatic pressing (CIP), warm isostatic pressing (WIP) and hot isostatic pressing (HIP). Due to the temperature difference during isostatic pressing, the three isostatic pressing technologies use corresponding equipment, pressure media and covering mold materials respectively.
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