Plastic Manufacturing Process

The establishment of the injection process This process is the process by which plastic pellets melt with the heat and drain liquid into a closed mold. Then the material is cooled and solidified to form the product in accordance with their prints. Then the plastic that has formed is removed from cavitynya the ejection process. Detailed process sequence is as follows: a. Charging Granules of plastic material which is collected in the hopper by gravity will fall and fall into the injection cylinder. Within this cylindrical plastic granules are heated either by heating or heater because the process of a rotating screw. With terisinya nozzle by the spindle screw plastic material will be pushed backward, turning to a position that we have set in accordance with the volume of product to be in print. b. Mould Closing This step closes the plastic molds with moving plate moves toward the fixed plate. Pressure that occurs between the parts of the plastic mold is the maximum pressure plate moves to close the mold until the lock position. The process is called Clamping Force. The capacity of an injection machine is identified with a maximum pressure capability (Clamping Force). c. Forward Barrel [3] Is a step toward moving cylinder injection mold plastic to touch the mouth of the nozzle sprue with a certain pressure. This movement takes place after step and a general, hydraulic clamping. d. Cavity filling The next step is filling cavity. Ready formed plastic fluid driven by a screw (special threaded shaft) into the mold. In this stage the plastic has several phases, namely the filling, packing, and holding. e. Cooling After the mold cavities filled next step is to cool the liquid to solid plastic. This process is followed by a return they will screw into position. f. Mould open The next step is to open the mold. g. Ejection This step is the movement of drivers who are generally located in the middle of the plate to move and push the plastic mold ejector system. This is the last step of the cycle of the injection process. (Bid / multiple sources)
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