Leak Testing FAQ: What Causes Different Defect Types in Plastic Bottles? скачать в хорошем качестве

Leak Testing FAQ: What Causes Different Defect Types in Plastic Bottles?

Materials, handling, or machine setup and component wear can all be causes of defects in plastic bottles. Holes are one type of defect that can be in any area of the bottle and can be caused by contamination in the resin, uneven heating or uneven plastic distribution. Holes along the parting line can be from worn molds or from worn or misadjusted deflashing setups. Gate cracks are common defects in PET bottles and are often from low temperature in the gate or worn or misaligned blow pins. Short shots are a type of defect that can appear in the finish of the preform. Causes of short shots include block channels or improper setup at the injection molding stage when the preform is made before the bottle is blown. Seal surface defects can also be caused by improper setup or worn components in a trimmer. Many of these defects are random. So sampling checks may not be enough to prevent your customer from receiving a defective bottle. 100% in-line leak inspection can protect your inventory from leak defects. ALPS Inspection® produces non-destructive leak testers for empty plastic containers to ensure product quality and increase efficiencies in your production process with leak detection equipment. https://www.alpsleak.com/