| abstract |
The invention discloses a method for measuring uniaxial compressibility of metal powder in a warm-pressed state. Compared with the method for measuring uniaxial compressibility of metal powder in a normal temperature state, the pressing process of the present invention is divided into four stages, namely powder Body purification and activation stage, powder contact and sintering neck growth stage, compacted body rapid densification stage and compression molding stage, the present invention automatically calculates the actual thickness of the metal powder into a billet by observing the reading of the displacement dial gauge, The actual density of the metal powder into a billet is automatically calculated according to the actual thickness. Since the compressibility of the metal powder into a billet is the ratio of the actual density to the theoretical density, the resistance heating equipment can accurately calculate the compressibility, and the invention is suitable for mass production. required diamond saw blade. |