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A finished PET drink bottle compared to the preform from which it is made. There are two basic molding methods for PET bottles, one-step and two-step. In two-step molding, two separate machines are used. The first machine injection molds the preform, which resembles a test tube, with the bottle-cap threads already molded into place.
It is also used for forming glass bottles or other hollow shapes. In general, there are three main types of blow molding: extrusion blow molding, injection blow molding, and injection stretch blow molding. The blow molding process begins with softening plastic by heating a preform or parison. The parison is a tube-like piece of plastic with a ...
Manufacture of PET-pellets or flakes for bottles (bottle to bottle) and A-PET [ edit ] This process is, in principle, similar to the one described above; however, the pellets produced are directly (continuously or discontinuously) crystallized and then subjected to a solid-state polycondensation (SSP) in a tumbling drier or a vertical tube reactor.
Krones AG is a German packaging and bottling machine manufacturer. It produces lines for filling beverages in plastic and glass bottles or beverage cans. [2] The company manufactures stretch blow-moulding machines for producing polyethylene terephthalate (PET) bottles, plus fillers, labellers, bottle washers, pasteurisers, inspectors, packers and palletisers.
A process flow diagram (PFD) is a diagram commonly used in chemical and process engineering to indicate the general flow of plant processes and equipment. The PFD displays the relationship between major equipment of a plant facility and does not show minor details such as piping details and designations.
It specialises in manufacturing blow-moulding for production of PET bottles, plus fillers, labellers, pasteurisers, bottle and crate washer, packers, craters, and palletizers machines. The company has 50 offices and 5,487 employees, nine research centres and over 40,000 machines installed in more than 190 countries (2018).
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