What is the Dry isostatic pressing and Wet isostatic pressing
With the development of science and technology, isostatic pressing technology is becoming more and more mature, what is the difference between dry bag isostatic pressing and wet bag isostatic pressing in isostatic pressing.
1.Dry isostatic pressing (DIP)
Dry isostatic pressing is relatively speaking, that is, the molds are not all in a high-pressure liquid medium, but semi-stationary, so that the addition of blanks and the removal of blanks are operated in a dry state. Dry isostatic pressing is quasi-isostatic pressing, and its compression molding bag can be made of nitrile rubber or ether urethane. When the dry mold bag is pressed and clamped by the upper and lower punches, the high-pressure liquid is input into the surrounding of the dry mold bag, so that the ceramic powder is formed by uniform pressure. Dry isostatic presses can be made into automated continuous presses suitable for mass production.
2.Wet isostatic pressing
The main structure of wet isostatic pressing is to encapsulate the pre-pressed blank in an elastic rubber mold or plastic mold, and then place it in a high-pressure container, which is filled with liquid medium. The formed body is in a high-pressure liquid, and all sides are evenly pressed, so it is called wet isostatic pressing. After pressurization, the pressure can be released, the upper cover head is opened, the mold is taken out, and the formed blank is taken out from the mold.
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