Diagram Of Plastic. Figure 211 blow molding of plastic bottles figure 212 schematic representation of extrusion blowing of plastic film. Today there are more than 50 kinds of plastic and in the past 100 years its invention has changed the world as we know it.
Lightweight strong and easy to create it has been used in endless ways. In the weld of polypropylene and polyethylene the rod angle should be 45 60. Perfectly plastic materials follow hooks law upto the limit of proportionality.
When stage 3 is completed the mould closes again and the cycle starts over again.
Stress is represented along the y axis. Using similar triangles from the bending moment diagram at collapse we see that. Stress strain curve as the name suggests its basically related to materials stress and strain. The diagram illustrates how plastic bottles are recycled.