Dry bag type isostatic press

Abstract

The invention discloses a dry bag type isostatic press. The dry bag type isostatic press comprises an equipment main bin, a replaceable intra-cavity assembly and a replaceable forming mold. The equipment main bin is provided with a high-pressure cavity. The replaceable intra-cavity assembly is detachably arranged in the high-pressure cavity of the equipment main bin, and the replaceable intra-cavity assembly comprises a preset number of cavity dry bags. The replaceable forming mold is detachably matched with the replaceable intra-cavity assembly. Based on the dry bag type isostatic press, thereplaceable intra-cavity assembly and the replaceable forming mold can be used for providing the dry bag type isostatic press with the cavity dry bags with the configurable number and specification range, and therefore the dry bag type isostatic press can support the configurability of the single-batch machining number and the single product specification range.

Description

technical field [0001] The invention relates to powder processing technology, in particular to a dry bag isostatic press capable of supporting the configuration of processing quantity and product specifications. Background technique [0002] When the traditional dry bag isostatic press presses slender products, the single batch processing quantity of slender products depends on the number of high-pressure chambers of the dry bag isostatic press, and each slender product The size range depends on the size of the high pressure chamber in which it is placed. [0003] Among them, for solid and equal-diameter rod-shaped slender products, although it is theoretically possible to implement batch molding in a high-pressure chamber, if so, there must be some, or even all, of the slender products batch-molded in dry bags. The elongated product is not in the center of the dry bag, but since the dry bag in the high-pressure chamber will shrink radially during high-pressure molding, the...

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Problems solved by technology

[0003] Among them, for solid and equal-diameter rod-shaped slender products, although it is theoretically possible to implement batch molding in a high-pressure chamber, if so, there must be some, or even all, of the slender products batch-molded in dry bags. The elongated product is not in the center of the dry bag, but since the dry bag in the high-pressure chamber will shrink radially during high-pressure molding, the elongated product that is not in the center of the dry bag will shrink with the radial shrinkage of the dry bag A radial offset corresponding to its position in the cavity is generated, and the ends of all elongated products will be constrained by the end cover of the high-pressure chamber, and thus cannot follow the radial offset of the elongated product, resulting in no The end of the slender product at the center of the high-pressure chamber is deformed, that is, batch molding in a high-pressure chamber can only guarantee the molding quality of a slender product at the center, and only defective products with substandard quality can be obtained at other positions. Therefore, it cannot meet the quality requirements of batch molding of slender products in a high-pressure chamber

[0004] In addition, for hollow cylindrical and slender products that require the use of mandrels (such as cylinders, round tubes, square tubes, or blind-hole tube products with one-end opening, etc.), only one mandrel can be arranged in a high-pressure chamber. At this time, the restriction that one high-pressure chamber can only press one slender product is even more stringent.

[0005] It can be seen that the single batch processing quantity and single product specification range of slender products supported by the traditional dry bag isostatic press are limited, and cannot be adjusted according to changes in demand

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