The preform is typically shaped like a bottle or jar neck with a large amount of polymer attached to it. The cavity forms the outer shape of the part, while the core rod shapes the inside of the preform. The plastic material is injection molded into a heated cavity and onto a core pin. The injection blow molding process begins by creating a preform. Products that are typically made with injection stretch blow molding include soft drink bottles, cooking oil containers, personal care product bottles, and chemical containers. Once the part cools, it is then discharged. Once the preform is heated to the right temperature, it gets stretched and infused with air until it reaches its final shape. The injection stretch blow molding process follows the same steps as injection blow molding to create a preform. Examples of products created with extrusion blow molding include jars, containers, and plastic bottles. Once the plastic cools, the molded part is ejected and replaced with a new parison to start the process over again. The manufacturer blows hot air into the parison, inflating it into a hollow part based on the shape of the mold. Extrusion Blow MoldingÄuring the extrusion blow molding process, plastic is melted and formed into a tube, known as a parison. There are three different types of blow molding: extrusion blow molding, injection stretch blow molding, and injection blow molding. Automobile parts (such as dashboard panels, exterior side panels, fuel tanks & more).Parts for dishwashers, washing machines, ovens/stoves.This process is used to create a wide range of thin-walled, hollow plastic products that are used in everyday life, such as: Blow molding is a manufacturing process that uses air to inflate soft plastic into a mold cavity.
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