Cold Isostatic Pressing

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Cold Isostatic Pressing

Categories: Dry bag DIP forming mold

Application: Cold Isostatic Pressing

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Main description:

CIP, Cold Isostatic Pressing, is one of material processing methods. It makes use of the principle “A change in the pressure of an enclosed incompressible fluid is conveyed undiminished to every part of the fluid and to the surface of its container.” proposed by the French scientist Blaise Pascal.According to the relationship between powder filled mold and pressure medium, CIP forming methods are divided into wet bag method and dry bag method.

DESCRIPTION

Cold Isostatic Pressing

What is cold isostatic pressing

CIP, Cold Isostatic Pressing, is one of material processing methods. It makes use of the principle “A change in the pressure of an enclosed incompressible fluid is conveyed undiminished to every part of the fluid and to the surface of its container.” proposed by the French scientist Blaise Pascal.According to the relationship between powder filled mold and pressure medium, CIP forming methods are divided into wet bag method and dry bag method.

Wet bag method

In the wet bag process, the powder is filled in the forming mould and sealed outside the high-pressure vessel before being directly immersed in the pressure medium. Then, isostatic pressure is applied on the surface of the die to compress the powder. This method is suitable for small batch production and trial production of various complex shapes or large products.

Dry bag method

The dry bag method is to transfer the pressure through the pressed rubber mold in the high-pressure vessel and fill the powder in the formed rubber mold. The method is labor-saving and highly automatic, and is suitable for the production of simple and limited products.

Cold isostatic pressing is a method of compacting powdered materials into a solid homogeneous mass before machining or sintering. Sometimes referred to as hydrostatic pressing, it is a very simple process capable of producing high-integrity billets or preforms that exhibit little distortion or cracking when fired.

Common applications for Cold Isostatic Pressing include consolidation of ceramic powders, compressing of graphite, refractories and electrical insulators, and other fine ceramics for dental and medical applications.

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