Instrument technical dataSmall piston diameter 1.4cmLarge piston diameter 4.8cmSmall piston area 1.54cmLarge piston area 18cmm2Normal pressure 2-2.2MpaThe pressure of the large piston is about 3.14KN at normal pressure.Demonstration experiment:A crushed vertically and closed the chalk at work.B compression spring. The small piston is slightly energized, and a large force can be obtained on the large piston.C stamped metal sheet. Put a large nut on the workbench, put a thin iron on the nut, put a nail on the iron, shake the handle, and when the pressure reaches a certain value, the iron will deform.D bending steel with a diameter of 4mm or less. Put the round steel in the bending device and shake the handle to reach a certain pressure value, the round steel will bend.
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