at t 0 in other words motion of the mold parts towards each other starts before the injection starts although this description will refer to u201c motion of the mold parts towards each other u201d in practice one mold part will be stationary while the other is pushed towards it as injection commences at t 0 injection pressure line 60 increases and injection screw displacement line 70 decreases for around 0 18 seconds molten plastics is injected into the mold while it is closing as shown by the decreasing mold part separation in line 50 then in this embodiment at t 0 18 motion of the mold parts towards each other is stopped so that line 50 becomes almost horizontal with in this case a mold part separation of around 6 2 mm however injection of molten plastics material continues as shown by the displacement of the injection screw line 70 at about t 0 55 seconds the screw is fully forwards so that the full charge of molten material has been injected and the injection pressure drops to nearly zero there is a small delay at t 0 75 seconds motion of the mold parts towards each other resumes the mold parts are pushed towards each other for 0 25 seconds and the mold is fully closed at t 1 second as can be seen from line 80 the clamping force rises from zero as the mold closes as with the conventional process the mold is held closed while the molten material cools and solidifies again the later steps of ejecting the cooled and solidified article from the mold are not shown thus it will be seen that there is a pause in the motion of the mold parts towards each other and injection of the.