Technical Requirements For Pistons

1. It should have sufficient strength, stiffness, small mass, and light weight to ensure minimum inertial force.
2. Good thermal conductivity, high temperature resistance, high pressure, corrosion resistance, sufficient heat dissipation ability, and small heating area.
3. There should be a small coefficient of friction between the piston and the piston wall.
4. When the temperature changes, the size and shape changes should be small, and the minimum gap between the cylinder wall should be maintained.
5. The coefficient of thermal expansion is small, the specific gravity is small, and it has good wear reduction and thermal strength.