| 摘要 |
PURPOSE:To provide the isotropic pressurizing device which allows extremely easy mold exchange between a wet type and a dry type by providing a rubber mold sealed at both top and bottom ends on the inner periphery of a cylindrical body disposed in a high-pressure chamber and providing a pressure medium passage for pressurizing the rubber mold in the cylindrical body part. CONSTITUTION:The cylindrical body 26 is inserted together with the rubber mold 32 into the high-pressure chamber 25 and a part 38 to be treated which is powder of ceramics, etc., is housed and packed into a molding chamber 32A at the time of executing dry type CIP. The mold 32 is then closed with plugs 36 and the pressure medium is supplied 24 into the chamber 25 in the same manner as with ordinary CIP to elastically deform the mold 32 in the inside direction of the diameter like the left half part from the center line 0-0 shown in the figure. The work 38 is thus compressively molded by the isotropic pressure. On the other hand, an upper cap 21 is held removed and the mold 32 is removed together with the cylindrical body 26 from the upper opening of a container 20 in the case of exchanging the above- mentioned device to the wet type device. The rubber mold of the wet type is then inserted into the chamber 25. The upper and lower caps 21, 22 are utilized as they are at this time and the need for a centering work for this purpose is eliminated. The reliability of the high-pressure sealing is thus improved.
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