The four beam and four column hydraulic press is mainly used for rare earth alloy powder pressing. The 400t four column hydraulic press is a device that presses powder into pressed block products. After pressing the powder into compacted products, it is required that each compacted product has the same specifications, such as size, weight, etc

The compressibility of metal powder mainly depends on its properties (particle size, shape, degree of work hardening, etc.). For example, metal powder that has undergone work hardening without annealing, metal powder that has been oxidized or saturated with gas, and metal powder with very fine particles all have poor compressibility; However, metal powders with fine particles and complex shapes have good formability, and even if they are pressed into a compact under very low forming pressure, they still have sufficient strength. Therefore, in general, metal powders with good formability have poor compressibility; Metal powders with good compressibility have poor formability. The higher the loose density of the same metal powder, the poorer its formability, while the better its compressibility

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