Piston pushing powder compression characteristic experimental method and device based on parallel light projection

• Main Authors: HU CHUNBO, HU JIAMING, YANG JIANGANG, WEI RONGGANG, HU YING, LI FENGCHAO
• Format: Patent
• Language: Chinese; English
• Published: 25.04.2023
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The invention discloses an experimental method and device for compression characteristics of piston pushed powder based on parallel light projection. The experimental method comprises the following steps: arranging an optical assembly, a piston powder pushing device and a projection screen in parallel; the piston powder pushing device is provided with a high-light-transmittance shell and a piston push rod assembly, and powder fuel is contained in the piston powder pushing device. Parallel light is sent through the optical assembly, the parallel light penetrates through the piston powder pushing device, and powder fuel in the piston powder pushing device and the piston push rod assembly form projection on the projection screen; the piston rod assembly is pushed to compress the powder fuel, and the volume change and the filling density change of the powder fuel are obtained according to the height change of the projection; and in combination with thrust data of the piston rod assembly, the compression character