What is Significance of Clamp Force?
The clamping force should be greater than the cavity force In the mould, i.e. mould opening force exerted by the melt in cavity. The cavity force depends on injection pressure and projected area of moulded part
Injection pressure depends on maximum flow ratio of part and melt viscosity. The flow ratio of part depends on geometry of part and location of gate. Viscosity depends on characteristic of polymer.