Moulding of filled synthetic plastics mould compositions
Cured thermoset plastics artefacts are made directly from a non-homogeneous blend of a filler and a solid particulate thermosetting material, by use of a screw injection plastic mold machine which is operated to cause the non-homogeneous blend to plasticize or flux so that a homogeneous intimate mixture of the filler and the thermosetting material is […]