Characteristics and Applications of Isostatic Pressing

Characteristics and Applications of Isostatic Pressing

1. Applications of Isostatic Pressing

Isostatic pressing technology is a technology that uses the products in a closed high-pressure container to be formed under the condition of equal ultra-high pressure in all directions. This technology was pioneered in the 1930s1, and was mainly used in powder metallurgy powder forming in the early stage: nearly 20 Over the years, isostatic pressing technology has been widely used in ceramic casting, atomic energy, tool manufacturing, plastics, ultra-high pressure food sterilization and graphite, ceramics, permanent magnets, high-voltage electromagnetic porcelain bottles, biological drug preparation, food preservation, high-performance materials, military industry, etc. field.

2. Characteristics of isostatic pressing technology

Axial pressing is similar to the principle of isostatic pressing. Axial pressing is one-way or two-way pressure pressing, the friction between the powder and the mold is large, and the pressure will produce pressure loss along the pressing direction, making the density of each part of the green body uneven. The pressure transmitted by the liquid medium during isostatic pressing is equal in all directions. The deformation of the elastic mold under the pressure of the liquid medium is transmitted to the powder in the mold. The friction between the powder and the mold wall is small, the green body is uniformly stressed, the density distribution is uniform, and the product performance is greatly improved.

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