WebSep 21, 2024 · 1.The uneven vertical wall thickness of blow molding products 2.The non-uniform horizontal wall thickness of blow molding products 3. Orange peel pattern or pitted on the surface of the blow molding products 4.Volume reduction of blow molding products 5.Unclear outline or text of blow molding products WebMar 8, 2024 · Defects can represent an excursion from normal operation or reflect the limits of your process capability. In the first case, your goal is to get back to normal operation. Troubleshooting needs to be quick, efficient, and easy to implement. Projects to reduce the normal level of defects often take longer and will be discussed separately.
Troubleshooting extrusion blow molding Packaging World
WebMay 29, 2012 · Troubleshooting: Sheet Extrusion Thin-gauge sheet production presents some unique challenges to the extrusion operator, including the following set of 10 commonly encountered considerations There are three basic methods for counteracting the adverse effects of roll deflection. Of these, roll skewing is the most versatile. Webresin does not melt completely and extrusion conditions are inadequate for the lower melt index material, resulting in defects on the blow molded part. Poor Weld or Pinch-off and … intra-mart dps for finance
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WebJun 9, 2024 · Extruder problems: There are many possible causes. including low voltage in the motor, dirty extrusion wheel, broken components or too little tension in the spring mechanism. Filament grinding: This may not always be the cause of the clog, but another consequence, as all print clogs result in filament grinding as it cannot go through the … WebJun 2, 2024 · 12. Causes: Moisture Absorption Polymers have high moisture absorption. Some plastics, such as PET, the nylons, and polycarbonate, can degrade and weaken if … WebMar 15, 2012 · With extrusion blow-molding (as with any process), the quality-assurance of supplier and buyer are linked, and the more thorough the troubleshooting by the former the less burden on the latter. Some CPG companies have supplier certification programs wherein the supplier certifies that deliveries will be free of defects, or at minimum, defects … intra mart download