Isostatic Pressing
The principle and application of isostatic press
Isostatic pressing is to place the object to be processed in a closed container filled with liquid, and gradually pressurize through the pressurization system to apply equal pressure to each surface of the object, so that the molecules can be reduced without changing the appearance shape. The distance between them increases the density and improves the physical properties of the substance.
The isostatic press is an advanced equipment for pressing high-quality powder products. Because it can obtain high-density and isotropic products from powder raw materials, it is widely used in sheet metal forming and processing of advanced materials in the aerospace and automotive industries, including aero-engines and Ceramic materials, industrial nozzles, modules and crucibles, hard alloys, graphite parts, ceramic insulators, pipes for chemical industry, ferrite, metal filters, component preforms and plastic pipes, rods, etc. High voltage electric porcelain, electric carbon Semi-finished products of powder products in industries such as electromagnetism, electronic chips, refractory materials, graphite carbon, superhard and composite materials. Cold isostatic pressing products are very conducive to mechanical processing and reduce the shrinkage of subsequent sintering. Products with particularly complex shapes can also be produced. The cold isostatic press can also be used in the fields of food preservation and biopharmaceuticals.
Components of an isostatic press
Elastic mold. Made of rubber or resin material. The particle size and shape of the material have a great influence on the life of the mold. Mold design is the key to isostatic pressing, because the precision and uniformity of green body size are closely related to the mold. When the material is loaded into the mold, the edges and corners are not easy to be filled by the material. Vibration charging can be used, or vibration and vacuuming at the same time, isostatic pressing machine, the effect is better.
Cylinder. Containers capable of withstanding high pressure. There are generally two structural forms: one is made of two layers of simplified heat-packed, the inner cylinder is in a state of compression, and the outer cylinder is in a state of tension. This structure is only suitable for small and medium-sized isostatic pressing molding equipment; the other The first is to use steel wire prestressed winding structure, use high-strength alloy steel with good mechanical properties as the core body, and then use high-strength steel wire to wrap around the outside of the core tube according to the pre-stress requirements to form a certain thickness of steel wire layer, so that the core tube can withstand a lot of pressure. large compressive stress. Even under working conditions, it does not bear tensile stress or very small tensile stress. This kind of container has a high lifespan and can manufacture containers with larger diameters. The upper and lower plugs of the container are movable, and when pressurized, the upper and lower plugs transmit the force to the frame.
Jiangsu High Industry focuses on the research and production of isostatic pressing moulds, customizes various dry bag and cold isostatic pressing moulds, adapts to different models of various manufacturers at home and abroad, and deeply understands the needs of various industries. Alloy, graphite and other industries provide high-performance isostatic pressing mold rubber sleeves.
We support all kinds of customization, if you need it, please contact us.
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