What is the Difference Between the Silic gel Isostatic Pressing Mold and the PU Isostatic Pressing mold?
What is the difference between the silic gel isostatic pressing mold rubber sleeve and the PU isostatic pressing mold? The special polyurethane isostatic pressing mold has good springback, easy demoulding, non-stick material and long service life. Widely used in powder molding of different materials such as graphite, alloy, ceramics, etc.
In the isostatic pressing process, the properties of the powder, the filling density of the powder in the mold, and the structure of the mold have a great influence on the performance of the formed blank, and the structural design of the isostatic pressing mold is very important. In the specific implementation of the isostatic pressing process, it is further divided into direct isostatic pressing and molding combined with first isostatic pressing, and direct isostatic pressing is further divided into internal pressure and external pressure according to the different pressing directions. pressure method. The design of the forming mold and the cover corresponding to these different methods also have their own characteristics.
Direct isostatic pressing is to directly fill and seal the powder in the mold cavity, and then directly place it in a liquid medium for pressure molding; while the first isostatic pressing combined molding process is to pre-form a blank through a rigid mold, and then The blank is sealed in a plastic envelope for isostatic pressing. The internal pressure method and the external pressure method in the direct isostatic pressing process are mainly aimed at the forming of hollow tubular blanks.
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